./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_peterson.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_peterson.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:25,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:25,712 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:29:25,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:25,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:25,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:25,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:25,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:25,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:25,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:25,760 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:25,761 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:25,761 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:25,761 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:25,763 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:25,764 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:25,765 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:25,766 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:25,766 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:25,766 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:25,766 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:25,771 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:25,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:25,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:25,772 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:25,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:25,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:25,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:25,773 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:25,773 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:25,774 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:25,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:25,789 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:29:25,789 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:29:25,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:25,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:25,790 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:25,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:25,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:25,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:25,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:25,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:25,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:25,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:25,794 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:25,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:25,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:25,794 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:25,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:25,795 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_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8be7009a37d1df58713fd67cd9771c39e6139a0416009824ceb58da10928b7 [2024-11-09 04:29:26,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:26,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:26,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:26,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:26,077 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:26,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/seq-pthread/cs_peterson.i Unable to find full path for "g++" [2024-11-09 04:29:28,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:28,308 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:28,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/sv-benchmarks/c/seq-pthread/cs_peterson.i [2024-11-09 04:29:28,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/data/ae72d8e34/88f83c1f04fe4f879a4284ef61c3c6cc/FLAG49d1e51fb [2024-11-09 04:29:28,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/data/ae72d8e34/88f83c1f04fe4f879a4284ef61c3c6cc [2024-11-09 04:29:28,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:28,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:28,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:28,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:28,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:28,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:28" (1/1) ... [2024-11-09 04:29:28,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183f7a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:28, skipping insertion in model container [2024-11-09 04:29:28,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:28" (1/1) ... [2024-11-09 04:29:28,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:29,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:29,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:29,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:29,186 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:29,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29 WrapperNode [2024-11-09 04:29:29,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:29,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:29,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:29,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:29,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,288 INFO L138 Inliner]: procedures = 145, calls = 286, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 447 [2024-11-09 04:29:29,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:29,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:29,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:29,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:29,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,311 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,363 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:29,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:29,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:29,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:29,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:29,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:29,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:29,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:29:29,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:29:29,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:29:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:29:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2024-11-09 04:29:29,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2024-11-09 04:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:29:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2024-11-09 04:29:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2024-11-09 04:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-09 04:29:29,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-09 04:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:29:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:29:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2024-11-09 04:29:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2024-11-09 04:29:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:29:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:29,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:29,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:29,691 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:29:31,945 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-09 04:29:31,946 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:29:32,093 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:29:32,093 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:29:32,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:32 BoogieIcfgContainer [2024-11-09 04:29:32,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:29:32,099 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:29:32,099 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:29:32,103 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:29:32,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:29:28" (1/3) ... [2024-11-09 04:29:32,104 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1506c8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:32, skipping insertion in model container [2024-11-09 04:29:32,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (2/3) ... [2024-11-09 04:29:32,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1506c8ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:32, skipping insertion in model container [2024-11-09 04:29:32,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:32" (3/3) ... [2024-11-09 04:29:32,108 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_peterson.i [2024-11-09 04:29:32,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:29:32,128 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-09 04:29:32,204 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:29:32,212 INFO L333 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, 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;@74b3161b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:29:32,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 04:29:32,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 64 states have (on average 1.34375) internal successors, (86), 72 states have internal predecessors, (86), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 04:29:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:29:32,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:32,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:29:32,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:32,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:32,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1023903191, now seen corresponding path program 1 times [2024-11-09 04:29:32,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:32,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318896732] [2024-11-09 04:29:32,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:32,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:32,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318896732] [2024-11-09 04:29:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318896732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:32,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:32,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492986847] [2024-11-09 04:29:32,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:32,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:29:32,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:32,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:29:32,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:29:32,827 INFO L87 Difference]: Start difference. First operand has 112 states, 64 states have (on average 1.34375) internal successors, (86), 72 states have internal predecessors, (86), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-09 04:29:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:33,063 INFO L93 Difference]: Finished difference Result 221 states and 311 transitions. [2024-11-09 04:29:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:29:33,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 [2024-11-09 04:29:33,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:33,075 INFO L225 Difference]: With dead ends: 221 [2024-11-09 04:29:33,075 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 04:29:33,082 INFO L431 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 [2024-11-09 04:29:33,091 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:33,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 270 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:29:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 04:29:33,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 04:29:33,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 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) [2024-11-09 04:29:33,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-09 04:29:33,125 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6 [2024-11-09 04:29:33,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:33,126 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-09 04:29:33,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-11-09 04:29:33,126 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 04:29:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:29:33,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:33,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:29:33,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:29:33,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:33,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1023892364, now seen corresponding path program 1 times [2024-11-09 04:29:33,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:33,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413714393] [2024-11-09 04:29:33,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:33,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413714393] [2024-11-09 04:29:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413714393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:33,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:33,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:33,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995225907] [2024-11-09 04:29:33,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:33,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:33,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:33,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:33,457 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2024-11-09 04:29:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:33,571 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2024-11-09 04:29:33,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:33,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2024-11-09 04:29:33,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:33,573 INFO L225 Difference]: With dead ends: 20 [2024-11-09 04:29:33,573 INFO L226 Difference]: Without dead ends: 18 [2024-11-09 04:29:33,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:33,575 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 1 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:33,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:29:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-09 04:29:33,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-09 04:29:33,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-09 04:29:33,582 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 6 [2024-11-09 04:29:33,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:33,583 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-09 04:29:33,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2024-11-09 04:29:33,584 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-09 04:29:33,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 04:29:33,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:33,586 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:33,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:29:33,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:33,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1809104528, now seen corresponding path program 1 times [2024-11-09 04:29:33,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:33,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686550733] [2024-11-09 04:29:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:33,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:33,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:33,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686550733] [2024-11-09 04:29:33,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686550733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:29:33,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244280865] [2024-11-09 04:29:33,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:33,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:33,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:33,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:33,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:29:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:34,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 04:29:34,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:34,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:29:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:34,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244280865] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:29:34,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [228120240] [2024-11-09 04:29:34,346 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2024-11-09 04:29:34,347 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:29:34,351 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:29:34,360 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:29:34,360 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:29:45,729 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:29:50,842 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '501#true' at error location [2024-11-09 04:29:50,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:29:50,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:29:50,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-09 04:29:50,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185976080] [2024-11-09 04:29:50,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:29:50,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:29:50,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:50,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:29:50,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-09 04:29:50,845 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 9 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) [2024-11-09 04:29:51,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:51,055 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2024-11-09 04:29:51,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:29:51,057 INFO L78 Accepts]: Start accepts. Automaton has has 9 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 10 [2024-11-09 04:29:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:51,057 INFO L225 Difference]: With dead ends: 40 [2024-11-09 04:29:51,058 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 04:29:51,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-09 04:29:51,059 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:51,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 61 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:29:51,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 04:29:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 04:29:51,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2024-11-09 04:29:51,064 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 10 [2024-11-09 04:29:51,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:51,065 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2024-11-09 04:29:51,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 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) [2024-11-09 04:29:51,065 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2024-11-09 04:29:51,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 04:29:51,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:51,066 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:51,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:29:51,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:51,270 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:51,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:51,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1809093701, now seen corresponding path program 1 times [2024-11-09 04:29:51,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:51,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156642200] [2024-11-09 04:29:51,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:51,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:51,517 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:51,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:51,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156642200] [2024-11-09 04:29:51,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156642200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:29:51,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965189112] [2024-11-09 04:29:51,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:51,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:51,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:51,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:51,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:29:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:51,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:29:51,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:51,816 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:29:51,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965189112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:51,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:29:51,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 04:29:51,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248111810] [2024-11-09 04:29:51,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:51,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:29:51,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:51,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:29:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:29:51,821 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:52,006 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2024-11-09 04:29:52,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:29:52,006 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-09 04:29:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:52,007 INFO L225 Difference]: With dead ends: 23 [2024-11-09 04:29:52,007 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 04:29:52,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:29:52,008 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:52,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 33 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:29:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 04:29:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 04:29:52,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-11-09 04:29:52,012 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2024-11-09 04:29:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:52,012 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-11-09 04:29:52,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-11-09 04:29:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:29:52,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:52,014 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1] [2024-11-09 04:29:52,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:29:52,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:52,217 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:52,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:52,217 INFO L85 PathProgramCache]: Analyzing trace with hash -484161594, now seen corresponding path program 1 times [2024-11-09 04:29:52,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:52,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996236757] [2024-11-09 04:29:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:52,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 04:29:52,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:52,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996236757] [2024-11-09 04:29:52,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996236757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:52,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:52,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:52,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514607798] [2024-11-09 04:29:52,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:52,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:52,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:52,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:52,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:52,395 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:52,498 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-11-09 04:29:52,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:52,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 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 [2024-11-09 04:29:52,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:52,500 INFO L225 Difference]: With dead ends: 22 [2024-11-09 04:29:52,500 INFO L226 Difference]: Without dead ends: 21 [2024-11-09 04:29:52,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:52,501 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:52,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:29:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-09 04:29:52,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-09 04:29:52,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-11-09 04:29:52,505 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 15 [2024-11-09 04:29:52,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:52,506 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-11-09 04:29:52,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-11-09 04:29:52,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:29:52,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:52,507 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:52,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:29:52,507 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:52,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:52,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1157733758, now seen corresponding path program 2 times [2024-11-09 04:29:52,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:52,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298548562] [2024-11-09 04:29:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:52,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 04:29:52,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:52,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298548562] [2024-11-09 04:29:52,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298548562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:52,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:52,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:29:52,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600482612] [2024-11-09 04:29:52,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:52,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:52,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:52,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:52,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:52,755 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:52,922 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2024-11-09 04:29:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:52,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 18 [2024-11-09 04:29:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:52,924 INFO L225 Difference]: With dead ends: 41 [2024-11-09 04:29:52,924 INFO L226 Difference]: Without dead ends: 39 [2024-11-09 04:29:52,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:52,927 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:52,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:29:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-09 04:29:52,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-09 04:29:52,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2024-11-09 04:29:52,940 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 18 [2024-11-09 04:29:52,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:52,940 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2024-11-09 04:29:52,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:52,941 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2024-11-09 04:29:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 04:29:52,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:52,945 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 04:29:52,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:29:52,947 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:52,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash 788812100, now seen corresponding path program 1 times [2024-11-09 04:29:52,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:52,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632810233] [2024-11-09 04:29:52,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:52,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 04:29:53,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:53,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632810233] [2024-11-09 04:29:53,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632810233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:29:53,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299750834] [2024-11-09 04:29:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:53,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:53,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:53,362 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:53,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:29:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:53,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:29:53,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-09 04:29:53,824 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:29:53,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299750834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:53,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:29:53,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 04:29:53,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814756444] [2024-11-09 04:29:53,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:53,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:29:53,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:53,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:29:53,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:29:53,826 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:54,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:54,030 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-11-09 04:29:54,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:29:54,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 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 36 [2024-11-09 04:29:54,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:54,031 INFO L225 Difference]: With dead ends: 39 [2024-11-09 04:29:54,031 INFO L226 Difference]: Without dead ends: 38 [2024-11-09 04:29:54,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:29:54,032 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:54,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:29:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-09 04:29:54,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-09 04:29:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 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) [2024-11-09 04:29:54,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2024-11-09 04:29:54,038 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 36 [2024-11-09 04:29:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:54,040 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2024-11-09 04:29:54,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2024-11-09 04:29:54,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 04:29:54,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:54,042 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 04:29:54,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 04:29:54,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 04:29:54,246 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 04:29:54,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:54,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1316628536, now seen corresponding path program 1 times [2024-11-09 04:29:54,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:54,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353789826] [2024-11-09 04:29:54,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:54,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:54,436 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 04:29:54,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:54,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353789826] [2024-11-09 04:29:54,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353789826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:54,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:54,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:29:54,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871627741] [2024-11-09 04:29:54,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:54,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:54,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:54,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:54,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:54,439 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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) [2024-11-09 04:29:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:54,525 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2024-11-09 04:29:54,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:54,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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 37 [2024-11-09 04:29:54,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:54,527 INFO L225 Difference]: With dead ends: 38 [2024-11-09 04:29:54,527 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:29:54,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:54,528 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:54,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:29:54,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:29:54,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:29:54,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:54,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:29:54,530 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2024-11-09 04:29:54,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:54,530 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:29:54,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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) [2024-11-09 04:29:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:29:54,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:29:54,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-09 04:29:54,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-09 04:29:54,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-09 04:29:54,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-09 04:29:54,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-09 04:29:54,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-09 04:29:54,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-09 04:29:54,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __CS_csErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-09 04:29:54,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:29:54,539 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-11-09 04:29:54,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:29:54,751 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:29:54,780 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 04:29:54,781 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 04:29:54,781 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 04:29:54,784 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 04:29:54,785 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 04:29:54,785 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 04:29:54,785 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_allocated by function __CS_pthread_create [2024-11-09 04:29:54,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_born_round by function __CS_pthread_create [2024-11-09 04:29:54,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_status by function __CS_pthread_create [2024-11-09 04:29:54,787 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_lockedon by function __CS_pthread_create [2024-11-09 04:29:54,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable flag1 by function __CS_pthread_create [2024-11-09 04:29:54,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable flag2 by function __CS_pthread_create [2024-11-09 04:29:54,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable turn by function __CS_pthread_create [2024-11-09 04:29:54,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable x by function __CS_pthread_create [2024-11-09 04:29:54,788 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread by function __CS_pthread_create [2024-11-09 04:29:54,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 04:29:54,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 04:29:54,789 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 04:29:54,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 04:29:54,790 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 04:29:54,791 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 04:29:54,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:29:54 BoogieIcfgContainer [2024-11-09 04:29:54,794 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:29:54,795 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:29:54,795 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:29:54,795 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:29:54,796 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:32" (3/4) ... [2024-11-09 04:29:54,798 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:29:54,802 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_join [2024-11-09 04:29:54,802 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~$Pointer$ [2024-11-09 04:29:54,803 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_pthread_create [2024-11-09 04:29:54,803 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 04:29:54,803 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __CS_cs [2024-11-09 04:29:54,818 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2024-11-09 04:29:54,822 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-09 04:29:54,823 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 04:29:54,825 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 04:29:54,828 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:29:54,994 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:29:54,995 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:29:54,995 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:29:54,996 INFO L158 Benchmark]: Toolchain (without parser) took 26643.16ms. Allocated memory was 153.1MB in the beginning and 622.9MB in the end (delta: 469.8MB). Free memory was 114.9MB in the beginning and 446.5MB in the end (delta: -331.6MB). Peak memory consumption was 140.3MB. Max. memory is 16.1GB. [2024-11-09 04:29:54,996 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 153.1MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:29:54,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 834.07ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 85.2MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 04:29:54,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.62ms. Allocated memory is still 153.1MB. Free memory was 85.2MB in the beginning and 80.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:29:54,998 INFO L158 Benchmark]: Boogie Preprocessor took 93.99ms. Allocated memory is still 153.1MB. Free memory was 80.5MB in the beginning and 76.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:29:54,998 INFO L158 Benchmark]: RCFGBuilder took 2710.25ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 76.8MB in the beginning and 122.6MB in the end (delta: -45.8MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2024-11-09 04:29:54,998 INFO L158 Benchmark]: TraceAbstraction took 22695.58ms. Allocated memory was 197.1MB in the beginning and 622.9MB in the end (delta: 425.7MB). Free memory was 121.5MB in the beginning and 458.0MB in the end (delta: -336.5MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. [2024-11-09 04:29:54,999 INFO L158 Benchmark]: Witness Printer took 200.41ms. Allocated memory is still 622.9MB. Free memory was 458.0MB in the beginning and 446.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:29:55,000 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 153.1MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 834.07ms. Allocated memory is still 153.1MB. Free memory was 114.4MB in the beginning and 85.2MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.62ms. Allocated memory is still 153.1MB. Free memory was 85.2MB in the beginning and 80.5MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 93.99ms. Allocated memory is still 153.1MB. Free memory was 80.5MB in the beginning and 76.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2710.25ms. Allocated memory was 153.1MB in the beginning and 197.1MB in the end (delta: 44.0MB). Free memory was 76.8MB in the beginning and 122.6MB in the end (delta: -45.8MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * TraceAbstraction took 22695.58ms. Allocated memory was 197.1MB in the beginning and 622.9MB in the end (delta: 425.7MB). Free memory was 121.5MB in the beginning and 458.0MB in the end (delta: -336.5MB). Peak memory consumption was 88.2MB. Max. memory is 16.1GB. * Witness Printer took 200.41ms. Allocated memory is still 622.9MB. Free memory was 458.0MB in the beginning and 446.5MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_allocated by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_born_round by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_status by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread_lockedon by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable flag1 by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable flag2 by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable turn by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable x by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable __CS_thread by function __CS_pthread_create - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 565]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 112 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 22.4s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 458 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 268 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 190 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 472 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1428 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 215/268 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 775]: Loop Invariant Derived loop invariant: (((((i == 0) && (j == 0)) || ((i == 0) && (1 <= j))) || (((1 <= i) && (i <= 2)) && (j == 0))) || (((1 <= i) && (i <= 2)) && (1 <= j))) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: ((0 < i) || (i == 0)) - ProcedureContractResult [Line: 642]: Procedure Contract for __CS_pthread_join Derived contract for procedure __CS_pthread_join. Ensures: ((((((((((((((((((__CS_round == \old(__CS_round)) && (__CS_ret_PREEMPTED == \old(__CS_ret_PREEMPTED))) && (__CS_ret_ERROR == \old(__CS_ret_ERROR))) && (__CS_ret_FINISHED == \old(__CS_ret_FINISHED))) && (__CS_thread_index == \old(__CS_thread_index))) && (__CS_thread_allocated == \old(__CS_thread_allocated))) && (__CS_thread_born_round == \old(__CS_thread_born_round))) && (__CS_thread_status == \old(__CS_thread_status))) && (__THREAD_UNUSED == \old(__THREAD_UNUSED))) && (__THREAD_RUNNING == \old(__THREAD_RUNNING))) && (__THREAD_FINISHED == \old(__THREAD_FINISHED))) && (__CS_thread_lockedon == \old(__CS_thread_lockedon))) && (flag1 == \old(flag1))) && (flag2 == \old(flag2))) && (turn == \old(turn))) && (x == \old(x))) && (__CS_u == \old(__CS_u))) && (__CS_thread == \old(__CS_thread))) - ProcedureContractResult [Line: 664]: Procedure Contract for __CS_pthread_create Derived contract for procedure __CS_pthread_create. Ensures: ((((((((((__CS_round == \old(__CS_round)) && (__CS_ret == \old(__CS_ret))) && (__CS_ret_PREEMPTED == \old(__CS_ret_PREEMPTED))) && (__CS_ret_ERROR == \old(__CS_ret_ERROR))) && (__CS_ret_FINISHED == \old(__CS_ret_FINISHED))) && (__CS_error == \old(__CS_error))) && (__THREAD_UNUSED == \old(__THREAD_UNUSED))) && (__THREAD_RUNNING == \old(__THREAD_RUNNING))) && (__THREAD_FINISHED == \old(__THREAD_FINISHED))) && (__CS_u == \old(__CS_u))) - ProcedureContractResult [Line: 5]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: ((((((((((((((((((((__CS_round == \old(__CS_round)) && (__CS_ret == \old(__CS_ret))) && (__CS_ret_PREEMPTED == \old(__CS_ret_PREEMPTED))) && (__CS_ret_ERROR == \old(__CS_ret_ERROR))) && (__CS_ret_FINISHED == \old(__CS_ret_FINISHED))) && (__CS_error == \old(__CS_error))) && (__CS_thread_index == \old(__CS_thread_index))) && (__CS_thread_allocated == \old(__CS_thread_allocated))) && (__CS_thread_born_round == \old(__CS_thread_born_round))) && (__CS_thread_status == \old(__CS_thread_status))) && (__THREAD_UNUSED == \old(__THREAD_UNUSED))) && (__THREAD_RUNNING == \old(__THREAD_RUNNING))) && (__THREAD_FINISHED == \old(__THREAD_FINISHED))) && (__CS_thread_lockedon == \old(__CS_thread_lockedon))) && (flag1 == \old(flag1))) && (flag2 == \old(flag2))) && (turn == \old(turn))) && (x == \old(x))) && (__CS_u == \old(__CS_u))) && (__CS_thread == \old(__CS_thread))) - ProcedureContractResult [Line: 562]: Procedure Contract for __CS_cs Derived contract for procedure __CS_cs. Ensures: ((((((((((((((((((__CS_ret_PREEMPTED == \old(__CS_ret_PREEMPTED)) && (__CS_ret_ERROR == \old(__CS_ret_ERROR))) && (__CS_ret_FINISHED == \old(__CS_ret_FINISHED))) && (__CS_error == \old(__CS_error))) && (__CS_thread_index == \old(__CS_thread_index))) && (__CS_thread_allocated == \old(__CS_thread_allocated))) && (__CS_thread_born_round == \old(__CS_thread_born_round))) && (__CS_thread_status == \old(__CS_thread_status))) && (__THREAD_UNUSED == \old(__THREAD_UNUSED))) && (__THREAD_RUNNING == \old(__THREAD_RUNNING))) && (__THREAD_FINISHED == \old(__THREAD_FINISHED))) && (__CS_thread_lockedon == \old(__CS_thread_lockedon))) && (flag1 == \old(flag1))) && (flag2 == \old(flag2))) && (turn == \old(turn))) && (x == \old(x))) && (__CS_u == \old(__CS_u))) && (__CS_thread == \old(__CS_thread))) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:29:55,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82f6aec5-a520-4b12-ade5-7c14756f7ba4/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE