./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-pthread/cs_lazy.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-pthread/cs_lazy.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:01:41,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:01:41,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:01:41,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:01:41,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:01:41,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:01:41,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:01:41,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:01:41,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:01:41,969 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:01:41,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:01:41,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:01:41,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:01:41,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:01:41,972 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:01:41,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:01:41,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:01:41,974 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:01:41,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:01:41,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:01:41,976 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:01:41,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:01:41,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:01:41,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:01:41,978 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:01:41,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:01:41,979 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:01:41,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:01:41,980 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:01:41,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:01:41,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:01:41,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:01:41,982 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:01:41,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:41,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:01:41,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:01:41,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:01:41,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:01:41,986 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:01:41,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:01:41,987 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:01:41,987 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:01:41,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:01:41,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:01:41,989 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b26873cfd586f35040b8fa56225beaa479db089ab89500d17d6395862bf9072f [2023-11-26 12:01:42,242 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:01:42,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:01:42,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:01:42,269 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:01:42,270 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:01:42,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/seq-pthread/cs_lazy.i [2023-11-26 12:01:45,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:01:46,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:01:46,024 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/sv-benchmarks/c/seq-pthread/cs_lazy.i [2023-11-26 12:01:46,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/data/b3988ad28/d3f042b0c584459d852535de81d57f41/FLAG42c1cc897 [2023-11-26 12:01:46,060 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/data/b3988ad28/d3f042b0c584459d852535de81d57f41 [2023-11-26 12:01:46,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:01:46,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:01:46,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:46,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:01:46,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:01:46,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:46,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65d3fb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46, skipping insertion in model container [2023-11-26 12:01:46,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:46,155 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:01:46,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:46,623 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:01:46,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:01:46,835 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:01:46,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46 WrapperNode [2023-11-26 12:01:46,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:01:46,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:46,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:01:46,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:01:46,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:46,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:46,954 INFO L138 Inliner]: procedures = 145, calls = 213, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 530 [2023-11-26 12:01:46,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:01:46,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:01:46,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:01:46,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:01:46,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:46,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:46,990 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,057 INFO L175 MemorySlicer]: Split 109 memory accesses to 13 slices as follows [2, 8, 10, 10, 25, 16, 9, 5, 3, 0, 9, 3, 9]. 23 percent of accesses are in the largest equivalence class. The 30 initializations are split as follows [2, 2, 4, 4, 8, 8, 2, 0, 0, 0, 0, 0, 0]. The 30 writes are split as follows [0, 3, 2, 2, 10, 4, 3, 2, 1, 0, 1, 1, 1]. [2023-11-26 12:01:47,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:01:47,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:01:47,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:01:47,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:01:47,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (1/1) ... [2023-11-26 12:01:47,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:01:47,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:47,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:01:47,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:01:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:01:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:01:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:01:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 12:01:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 12:01:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 12:01:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-26 12:01:47,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-26 12:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-26 12:01:47,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-26 12:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-26 12:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:01:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:01:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:01:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 12:01:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 12:01:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 12:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-26 12:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-26 12:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-26 12:01:47,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-26 12:01:47,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-26 12:01:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:01:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:01:47,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 12:01:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 12:01:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 12:01:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 12:01:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 12:01:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 12:01:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 12:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 12:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-26 12:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-26 12:01:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-26 12:01:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-26 12:01:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-26 12:01:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2023-11-26 12:01:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2023-11-26 12:01:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-26 12:01:47,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-26 12:01:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 12:01:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 12:01:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 12:01:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 12:01:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 12:01:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 12:01:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 12:01:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 12:01:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-26 12:01:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-26 12:01:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-26 12:01:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-26 12:01:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-26 12:01:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2023-11-26 12:01:47,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2023-11-26 12:01:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-26 12:01:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-26 12:01:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:01:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 12:01:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 12:01:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 12:01:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 12:01:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 12:01:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 12:01:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 12:01:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 12:01:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-26 12:01:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-26 12:01:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-26 12:01:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-26 12:01:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-26 12:01:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-26 12:01:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-26 12:01:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:01:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:01:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:01:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:01:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:01:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 12:01:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 12:01:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 12:01:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-26 12:01:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-26 12:01:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-26 12:01:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-26 12:01:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-26 12:01:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2023-11-26 12:01:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2023-11-26 12:01:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:01:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:01:47,717 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:01:47,719 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:01:48,152 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2023-11-26 12:01:48,153 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-26 12:01:48,153 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2023-11-26 12:01:48,153 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##33: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-26 12:01:48,153 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L714: SUMMARY for call __CS_cs(); srcloc: null [2023-11-26 12:01:48,154 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);thread3_#res#1.base, thread3_#res#1.offset := 0, 0; [2023-11-26 12:01:48,154 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L714-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-26 12:01:48,585 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:01:48,667 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:01:48,668 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:01:48,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:48 BoogieIcfgContainer [2023-11-26 12:01:48,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:01:48,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:01:48,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:01:48,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:01:48,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:01:46" (1/3) ... [2023-11-26 12:01:48,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9bcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:48, skipping insertion in model container [2023-11-26 12:01:48,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:01:46" (2/3) ... [2023-11-26 12:01:48,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9bcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:01:48, skipping insertion in model container [2023-11-26 12:01:48,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:01:48" (3/3) ... [2023-11-26 12:01:48,681 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_lazy.i [2023-11-26 12:01:48,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:01:48,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-26 12:01:48,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:01:48,790 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@1fd004fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:01:48,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-26 12:01:48,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 123 states have (on average 1.6016260162601625) internal successors, (197), 139 states have internal predecessors, (197), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-26 12:01:48,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 12:01:48,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:48,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 12:01:48,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:48,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:48,814 INFO L85 PathProgramCache]: Analyzing trace with hash 17537217, now seen corresponding path program 1 times [2023-11-26 12:01:48,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:48,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771554254] [2023-11-26 12:01:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:48,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:49,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:49,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771554254] [2023-11-26 12:01:49,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771554254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:49,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:49,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:49,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724898344] [2023-11-26 12:01:49,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:49,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:49,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:49,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:49,289 INFO L87 Difference]: Start difference. First operand has 183 states, 123 states have (on average 1.6016260162601625) internal successors, (197), 139 states have internal predecessors, (197), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:49,422 INFO L93 Difference]: Finished difference Result 359 states and 575 transitions. [2023-11-26 12:01:49,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:49,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2023-11-26 12:01:49,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:49,437 INFO L225 Difference]: With dead ends: 359 [2023-11-26 12:01:49,437 INFO L226 Difference]: Without dead ends: 150 [2023-11-26 12:01:49,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:49,452 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 1 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:49,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 465 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:49,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-11-26 12:01:49,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2023-11-26 12:01:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 99 states have (on average 1.4848484848484849) internal successors, (147), 107 states have internal predecessors, (147), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:01:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 220 transitions. [2023-11-26 12:01:49,518 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 220 transitions. Word has length 4 [2023-11-26 12:01:49,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:49,518 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 220 transitions. [2023-11-26 12:01:49,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:49,519 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 220 transitions. [2023-11-26 12:01:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:01:49,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:49,520 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-26 12:01:49,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:01:49,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:49,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:49,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1534447953, now seen corresponding path program 1 times [2023-11-26 12:01:49,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:49,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33983172] [2023-11-26 12:01:49,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:49,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:49,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:49,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33983172] [2023-11-26 12:01:49,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33983172] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:49,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330706270] [2023-11-26 12:01:49,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:49,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:49,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:49,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:49,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:01:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:50,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:50,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:50,090 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:50,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330706270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:50,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:50,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-26 12:01:50,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459932335] [2023-11-26 12:01:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:50,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:01:50,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:01:50,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:50,099 INFO L87 Difference]: Start difference. First operand 150 states and 220 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:50,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:50,241 INFO L93 Difference]: Finished difference Result 150 states and 220 transitions. [2023-11-26 12:01:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:01:50,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 12:01:50,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:50,250 INFO L225 Difference]: With dead ends: 150 [2023-11-26 12:01:50,251 INFO L226 Difference]: Without dead ends: 149 [2023-11-26 12:01:50,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:50,255 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 3 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:50,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 611 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:50,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-26 12:01:50,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-26 12:01:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 99 states have (on average 1.4747474747474747) internal successors, (146), 106 states have internal predecessors, (146), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:01:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 219 transitions. [2023-11-26 12:01:50,283 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 219 transitions. Word has length 7 [2023-11-26 12:01:50,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:50,284 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 219 transitions. [2023-11-26 12:01:50,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:50,284 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 219 transitions. [2023-11-26 12:01:50,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 12:01:50,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:50,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:50,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:50,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:50,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:50,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:50,487 INFO L85 PathProgramCache]: Analyzing trace with hash -323247683, now seen corresponding path program 1 times [2023-11-26 12:01:50,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:50,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933024848] [2023-11-26 12:01:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:50,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:50,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:50,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933024848] [2023-11-26 12:01:50,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933024848] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:50,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817841211] [2023-11-26 12:01:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:50,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:50,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:50,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:50,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:01:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:50,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:01:50,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:51,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:51,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817841211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:51,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:51,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-11-26 12:01:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915927022] [2023-11-26 12:01:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:51,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:51,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:51,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:51,009 INFO L87 Difference]: Start difference. First operand 149 states and 219 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:55,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:01:55,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:55,102 INFO L93 Difference]: Finished difference Result 149 states and 219 transitions. [2023-11-26 12:01:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:55,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2023-11-26 12:01:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:55,105 INFO L225 Difference]: With dead ends: 149 [2023-11-26 12:01:55,106 INFO L226 Difference]: Without dead ends: 148 [2023-11-26 12:01:55,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:55,108 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 4 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:55,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 399 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-26 12:01:55,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-11-26 12:01:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-11-26 12:01:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 105 states have internal predecessors, (145), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:01:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 218 transitions. [2023-11-26 12:01:55,127 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 218 transitions. Word has length 8 [2023-11-26 12:01:55,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:55,127 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 218 transitions. [2023-11-26 12:01:55,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 218 transitions. [2023-11-26 12:01:55,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-26 12:01:55,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:55,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-26 12:01:55,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:55,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:55,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:55,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:55,337 INFO L85 PathProgramCache]: Analyzing trace with hash -323245954, now seen corresponding path program 1 times [2023-11-26 12:01:55,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:55,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390514003] [2023-11-26 12:01:55,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:55,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:55,468 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:55,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:55,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390514003] [2023-11-26 12:01:55,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390514003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:55,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:55,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:55,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555170214] [2023-11-26 12:01:55,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:55,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:55,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:55,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:55,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:55,471 INFO L87 Difference]: Start difference. First operand 148 states and 218 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:55,534 INFO L93 Difference]: Finished difference Result 148 states and 218 transitions. [2023-11-26 12:01:55,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:55,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2023-11-26 12:01:55,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:55,539 INFO L225 Difference]: With dead ends: 148 [2023-11-26 12:01:55,540 INFO L226 Difference]: Without dead ends: 147 [2023-11-26 12:01:55,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:55,545 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 0 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:55,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 407 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:55,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-11-26 12:01:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2023-11-26 12:01:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 97 states have (on average 1.4639175257731958) internal successors, (142), 102 states have internal predecessors, (142), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:01:55,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 215 transitions. [2023-11-26 12:01:55,588 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 215 transitions. Word has length 8 [2023-11-26 12:01:55,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:55,589 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 215 transitions. [2023-11-26 12:01:55,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:55,589 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 215 transitions. [2023-11-26 12:01:55,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-26 12:01:55,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:55,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:55,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:01:55,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:55,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:55,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1430743239, now seen corresponding path program 1 times [2023-11-26 12:01:55,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:55,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609250438] [2023-11-26 12:01:55,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:55,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:55,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:01:55,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:55,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609250438] [2023-11-26 12:01:55,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609250438] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:55,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625005771] [2023-11-26 12:01:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:55,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:55,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:55,687 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:55,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:01:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:55,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:01:55,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:55,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:01:55,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:55,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625005771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:55,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:55,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2023-11-26 12:01:55,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521859300] [2023-11-26 12:01:55,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:55,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:55,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:55,969 INFO L87 Difference]: Start difference. First operand 145 states and 215 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:01:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:58,559 INFO L93 Difference]: Finished difference Result 289 states and 429 transitions. [2023-11-26 12:01:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:58,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2023-11-26 12:01:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:58,562 INFO L225 Difference]: With dead ends: 289 [2023-11-26 12:01:58,562 INFO L226 Difference]: Without dead ends: 153 [2023-11-26 12:01:58,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:58,564 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 0 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:58,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 403 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-26 12:01:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-26 12:01:58,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-11-26 12:01:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.438095238095238) internal successors, (151), 110 states have internal predecessors, (151), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:01:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 224 transitions. [2023-11-26 12:01:58,589 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 224 transitions. Word has length 9 [2023-11-26 12:01:58,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:58,590 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 224 transitions. [2023-11-26 12:01:58,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:58,590 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 224 transitions. [2023-11-26 12:01:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 12:01:58,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:58,594 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-26 12:01:58,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:58,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:58,801 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:58,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:58,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1146862288, now seen corresponding path program 1 times [2023-11-26 12:01:58,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:58,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059547455] [2023-11-26 12:01:58,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:58,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:01:58,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:58,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059547455] [2023-11-26 12:01:58,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059547455] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:58,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146016515] [2023-11-26 12:01:58,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:58,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:58,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:58,997 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:59,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:01:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:59,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:01:59,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:59,324 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 12:01:59,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:01:59,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146016515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:59,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:01:59,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 12:01:59,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255004238] [2023-11-26 12:01:59,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:59,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:59,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:59,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:59,327 INFO L87 Difference]: Start difference. First operand 153 states and 224 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:59,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:59,464 INFO L93 Difference]: Finished difference Result 153 states and 224 transitions. [2023-11-26 12:01:59,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:59,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-26 12:01:59,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:59,466 INFO L225 Difference]: With dead ends: 153 [2023-11-26 12:01:59,466 INFO L226 Difference]: Without dead ends: 152 [2023-11-26 12:01:59,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:59,468 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 399 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 [2023-11-26 12:01:59,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 399 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-26 12:01:59,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 145. [2023-11-26 12:01:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 98 states have (on average 1.4489795918367347) internal successors, (142), 102 states have internal predecessors, (142), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:01:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 215 transitions. [2023-11-26 12:01:59,483 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 215 transitions. Word has length 17 [2023-11-26 12:01:59,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:59,483 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 215 transitions. [2023-11-26 12:01:59,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:01:59,483 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 215 transitions. [2023-11-26 12:01:59,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-26 12:01:59,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:59,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:59,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:59,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:59,690 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:01:59,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:59,691 INFO L85 PathProgramCache]: Analyzing trace with hash 2071616295, now seen corresponding path program 1 times [2023-11-26 12:01:59,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:59,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286127672] [2023-11-26 12:01:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:59,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:59,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-26 12:01:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:59,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-26 12:01:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:59,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-26 12:01:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-26 12:01:59,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:59,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286127672] [2023-11-26 12:01:59,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286127672] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:59,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011296699] [2023-11-26 12:01:59,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:59,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:59,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:59,989 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:59,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:02:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:00,369 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:02:00,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-26 12:02:00,410 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:00,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-26 12:02:00,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011296699] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:00,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:02:00,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2023-11-26 12:02:00,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868754721] [2023-11-26 12:02:00,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:00,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:02:00,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:00,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:02:00,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:02:00,495 INFO L87 Difference]: Start difference. First operand 145 states and 215 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 12:02:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:02,540 INFO L93 Difference]: Finished difference Result 303 states and 452 transitions. [2023-11-26 12:02:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 12:02:02,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 48 [2023-11-26 12:02:02,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:02,544 INFO L225 Difference]: With dead ends: 303 [2023-11-26 12:02:02,544 INFO L226 Difference]: Without dead ends: 160 [2023-11-26 12:02:02,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:02:02,546 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 70 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:02,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 656 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-26 12:02:02,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-26 12:02:02,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2023-11-26 12:02:02,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 107 states have (on average 1.411214953271028) internal successors, (151), 111 states have internal predecessors, (151), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:02:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 224 transitions. [2023-11-26 12:02:02,568 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 224 transitions. Word has length 48 [2023-11-26 12:02:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:02,569 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 224 transitions. [2023-11-26 12:02:02,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 12:02:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 224 transitions. [2023-11-26 12:02:02,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-26 12:02:02,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:02,572 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:02,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:02,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 12:02:02,779 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:02:02,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:02,780 INFO L85 PathProgramCache]: Analyzing trace with hash 255495658, now seen corresponding path program 1 times [2023-11-26 12:02:02,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:02,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351431400] [2023-11-26 12:02:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:02,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 12:02:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-26 12:02:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:02:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-26 12:02:03,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:03,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351431400] [2023-11-26 12:02:03,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351431400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:02:03,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [761540797] [2023-11-26 12:02:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:03,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:02:03,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:03,076 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:02:03,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:02:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:03,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:02:03,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-26 12:02:03,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:02:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-26 12:02:03,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [761540797] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:02:03,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:02:03,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 7 [2023-11-26 12:02:03,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423551635] [2023-11-26 12:02:03,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:02:03,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:02:03,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:03,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:02:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:02:03,606 INFO L87 Difference]: Start difference. First operand 154 states and 224 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 12:02:05,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:07,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:08,276 INFO L93 Difference]: Finished difference Result 312 states and 458 transitions. [2023-11-26 12:02:08,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:02:08,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 55 [2023-11-26 12:02:08,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:08,280 INFO L225 Difference]: With dead ends: 312 [2023-11-26 12:02:08,280 INFO L226 Difference]: Without dead ends: 177 [2023-11-26 12:02:08,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:02:08,283 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 73 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:08,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 480 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-26 12:02:08,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-11-26 12:02:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 171. [2023-11-26 12:02:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 128 states have internal predecessors, (169), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 12:02:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 242 transitions. [2023-11-26 12:02:08,317 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 242 transitions. Word has length 55 [2023-11-26 12:02:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:08,318 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 242 transitions. [2023-11-26 12:02:08,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-26 12:02:08,318 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 242 transitions. [2023-11-26 12:02:08,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 12:02:08,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:08,323 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:08,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:08,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d32d5864-901d-4774-abd3-2ef8de9adefa/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 12:02:08,532 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:02:08,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:08,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1180339752, now seen corresponding path program 1 times [2023-11-26 12:02:08,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:08,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965294753] [2023-11-26 12:02:08,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:08,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:08,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-26 12:02:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:09,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-26 12:02:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 12:02:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-26 12:02:09,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:09,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965294753] [2023-11-26 12:02:09,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965294753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:09,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:09,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:02:09,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102481229] [2023-11-26 12:02:09,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:09,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:09,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:09,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:09,485 INFO L87 Difference]: Start difference. First operand 171 states and 242 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 12:02:13,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:17,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:19,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:19,694 INFO L93 Difference]: Finished difference Result 465 states and 697 transitions. [2023-11-26 12:02:19,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 12:02:19,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2023-11-26 12:02:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:19,700 INFO L225 Difference]: With dead ends: 465 [2023-11-26 12:02:19,700 INFO L226 Difference]: Without dead ends: 338 [2023-11-26 12:02:19,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:02:19,703 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 330 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 152 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:19,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 756 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 454 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2023-11-26 12:02:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-26 12:02:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 320. [2023-11-26 12:02:19,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 224 states have (on average 1.4107142857142858) internal successors, (316), 228 states have internal predecessors, (316), 79 states have call successors, (79), 13 states have call predecessors, (79), 13 states have return successors, (82), 78 states have call predecessors, (82), 77 states have call successors, (82) [2023-11-26 12:02:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 477 transitions. [2023-11-26 12:02:19,740 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 477 transitions. Word has length 70 [2023-11-26 12:02:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:19,740 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 477 transitions. [2023-11-26 12:02:19,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 12:02:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 477 transitions. [2023-11-26 12:02:19,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 12:02:19,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:19,743 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:19,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:02:19,743 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:02:19,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:19,744 INFO L85 PathProgramCache]: Analyzing trace with hash 953916605, now seen corresponding path program 1 times [2023-11-26 12:02:19,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:19,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221610528] [2023-11-26 12:02:19,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:19,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:20,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:02:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:20,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 12:02:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:20,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:02:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:20,440 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-26 12:02:20,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:20,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221610528] [2023-11-26 12:02:20,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221610528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:20,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:20,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:02:20,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560483979] [2023-11-26 12:02:20,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:20,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:20,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:20,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:20,447 INFO L87 Difference]: Start difference. First operand 320 states and 477 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 12:02:21,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:23,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:23,070 INFO L93 Difference]: Finished difference Result 632 states and 961 transitions. [2023-11-26 12:02:23,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:02:23,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 68 [2023-11-26 12:02:23,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:23,076 INFO L225 Difference]: With dead ends: 632 [2023-11-26 12:02:23,076 INFO L226 Difference]: Without dead ends: 361 [2023-11-26 12:02:23,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:02:23,080 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 364 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:23,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 671 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-26 12:02:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2023-11-26 12:02:23,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 343. [2023-11-26 12:02:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 239 states have (on average 1.4142259414225942) internal successors, (338), 244 states have internal predecessors, (338), 85 states have call successors, (85), 14 states have call predecessors, (85), 15 states have return successors, (91), 84 states have call predecessors, (91), 83 states have call successors, (91) [2023-11-26 12:02:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 514 transitions. [2023-11-26 12:02:23,118 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 514 transitions. Word has length 68 [2023-11-26 12:02:23,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:23,119 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 514 transitions. [2023-11-26 12:02:23,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 12:02:23,119 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 514 transitions. [2023-11-26 12:02:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 12:02:23,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:23,121 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:23,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:02:23,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:02:23,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:23,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1892842551, now seen corresponding path program 1 times [2023-11-26 12:02:23,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:23,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332133310] [2023-11-26 12:02:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:23,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:24,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:02:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 12:02:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:02:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2023-11-26 12:02:24,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:24,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332133310] [2023-11-26 12:02:24,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332133310] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:24,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:24,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-26 12:02:24,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476424129] [2023-11-26 12:02:24,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:24,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 12:02:24,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:24,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 12:02:24,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:02:24,493 INFO L87 Difference]: Start difference. First operand 343 states and 514 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:02:28,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:32,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 12:02:34,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:02:34,425 INFO L93 Difference]: Finished difference Result 883 states and 1349 transitions. [2023-11-26 12:02:34,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:02:34,426 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 68 [2023-11-26 12:02:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:02:34,434 INFO L225 Difference]: With dead ends: 883 [2023-11-26 12:02:34,434 INFO L226 Difference]: Without dead ends: 589 [2023-11-26 12:02:34,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:02:34,439 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 445 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 264 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:02:34,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 519 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 926 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2023-11-26 12:02:34,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2023-11-26 12:02:34,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 439. [2023-11-26 12:02:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 310 states have (on average 1.3193548387096774) internal successors, (409), 304 states have internal predecessors, (409), 99 states have call successors, (99), 16 states have call predecessors, (99), 26 states have return successors, (129), 118 states have call predecessors, (129), 97 states have call successors, (129) [2023-11-26 12:02:34,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 637 transitions. [2023-11-26 12:02:34,520 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 637 transitions. Word has length 68 [2023-11-26 12:02:34,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:02:34,520 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 637 transitions. [2023-11-26 12:02:34,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:02:34,521 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 637 transitions. [2023-11-26 12:02:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-26 12:02:34,524 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:02:34,524 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:34,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:02:34,524 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-26 12:02:34,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:34,525 INFO L85 PathProgramCache]: Analyzing trace with hash 441489239, now seen corresponding path program 1 times [2023-11-26 12:02:34,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:34,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28066577] [2023-11-26 12:02:34,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:02:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:35,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 12:02:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:35,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-26 12:02:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-11-26 12:02:35,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:35,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28066577] [2023-11-26 12:02:35,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28066577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:35,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:35,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:02:35,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088746961] [2023-11-26 12:02:35,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:35,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:02:35,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:35,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:02:35,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:02:35,250 INFO L87 Difference]: Start difference. First operand 439 states and 637 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 12:02:39,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []