./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu --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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:32,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:32,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:49:32,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:32,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:32,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:32,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:32,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:32,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:32,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:32,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:32,325 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:32,325 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:32,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:32,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:32,328 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:32,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:32,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:32,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:32,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:32,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:32,335 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:32,335 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:49:32,335 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:49:32,336 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:32,337 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:32,337 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:32,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:32,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:32,339 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:32,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:32,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:32,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:32,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:32,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:32,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:32,342 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:32,343 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:32,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:32,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:32,343 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:32,344 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_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d [2023-11-19 07:49:32,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:32,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:32,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:32,626 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:32,626 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:32,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2023-11-19 07:49:35,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:36,094 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:36,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2023-11-19 07:49:36,115 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/data/b076e6635/481eef68a32546be9e58b1b21d6de305/FLAG38e420639 [2023-11-19 07:49:36,137 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/data/b076e6635/481eef68a32546be9e58b1b21d6de305 [2023-11-19 07:49:36,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:36,141 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:36,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:36,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:36,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:36,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a1cfeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36, skipping insertion in model container [2023-11-19 07:49:36,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,204 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:36,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:36,703 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:36,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:36,830 WARN L675 CHandler]: The function release is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:49:36,836 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:36,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36 WrapperNode [2023-11-19 07:49:36,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:36,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:36,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:36,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:36,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,895 INFO L138 Inliner]: procedures = 164, calls = 71, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 123 [2023-11-19 07:49:36,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:36,897 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:36,897 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:36,897 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:36,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,914 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,924 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:36,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:36,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:36,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:36,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (1/1) ... [2023-11-19 07:49:36,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:36,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:37,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:37,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:37,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:49:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2023-11-19 07:49:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2023-11-19 07:49:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:49:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:49:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2023-11-19 07:49:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2023-11-19 07:49:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:49:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:49:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:49:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:49:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:49:37,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:49:37,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:37,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:37,264 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:37,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:37,556 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:37,565 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:37,565 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:49:37,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:37 BoogieIcfgContainer [2023-11-19 07:49:37,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:37,571 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:37,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:37,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:37,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:36" (1/3) ... [2023-11-19 07:49:37,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154d97a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:37, skipping insertion in model container [2023-11-19 07:49:37,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:36" (2/3) ... [2023-11-19 07:49:37,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154d97a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:37, skipping insertion in model container [2023-11-19 07:49:37,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:37" (3/3) ... [2023-11-19 07:49:37,578 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i [2023-11-19 07:49:37,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:37,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 07:49:37,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:37,661 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;@206ede2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:37,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 07:49:37,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:49:37,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:49:37,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:37,676 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:37,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:37,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:37,684 INFO L85 PathProgramCache]: Analyzing trace with hash -175410051, now seen corresponding path program 1 times [2023-11-19 07:49:37,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887864365] [2023-11-19 07:49:37,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:37,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:38,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:38,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:38,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887864365] [2023-11-19 07:49:38,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887864365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:38,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:38,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:49:38,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855612701] [2023-11-19 07:49:38,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:38,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:49:38,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:38,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:49:38,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:38,272 INFO L87 Difference]: Start difference. First operand has 52 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:38,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:38,468 INFO L93 Difference]: Finished difference Result 101 states and 120 transitions. [2023-11-19 07:49:38,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:49:38,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-19 07:49:38,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:38,482 INFO L225 Difference]: With dead ends: 101 [2023-11-19 07:49:38,482 INFO L226 Difference]: Without dead ends: 65 [2023-11-19 07:49:38,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:38,489 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 28 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:38,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 184 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:38,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-11-19 07:49:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 52. [2023-11-19 07:49:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.325) internal successors, (53), 45 states have internal predecessors, (53), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:49:38,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2023-11-19 07:49:38,538 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 12 [2023-11-19 07:49:38,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:38,539 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2023-11-19 07:49:38,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:38,539 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2023-11-19 07:49:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:49:38,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:38,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:38,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:49:38,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:38,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1567400284, now seen corresponding path program 1 times [2023-11-19 07:49:38,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:38,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733094481] [2023-11-19 07:49:38,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:38,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:38,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:38,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:38,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733094481] [2023-11-19 07:49:38,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733094481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:38,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:38,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:49:38,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391157429] [2023-11-19 07:49:38,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:38,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:38,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:38,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:38,699 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:38,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:38,868 INFO L93 Difference]: Finished difference Result 90 states and 105 transitions. [2023-11-19 07:49:38,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:49:38,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-19 07:49:38,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:38,873 INFO L225 Difference]: With dead ends: 90 [2023-11-19 07:49:38,873 INFO L226 Difference]: Without dead ends: 64 [2023-11-19 07:49:38,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:38,880 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 24 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:38,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 136 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-19 07:49:38,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 54. [2023-11-19 07:49:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:49:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2023-11-19 07:49:38,900 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 12 [2023-11-19 07:49:38,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:38,901 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2023-11-19 07:49:38,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2023-11-19 07:49:38,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:49:38,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:38,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:38,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:49:38,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:38,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1120397654, now seen corresponding path program 1 times [2023-11-19 07:49:38,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:38,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178248874] [2023-11-19 07:49:38,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:38,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:39,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:39,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178248874] [2023-11-19 07:49:39,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178248874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:39,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:39,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:49:39,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861132850] [2023-11-19 07:49:39,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:39,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:49:39,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:39,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:49:39,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:49:39,115 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:39,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:39,335 INFO L93 Difference]: Finished difference Result 96 states and 113 transitions. [2023-11-19 07:49:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:49:39,337 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-19 07:49:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:39,345 INFO L225 Difference]: With dead ends: 96 [2023-11-19 07:49:39,346 INFO L226 Difference]: Without dead ends: 67 [2023-11-19 07:49:39,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:49:39,348 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 30 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:39,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 204 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:49:39,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-19 07:49:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 57. [2023-11-19 07:49:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 50 states have internal predecessors, (59), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:49:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2023-11-19 07:49:39,374 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 16 [2023-11-19 07:49:39,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:39,375 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2023-11-19 07:49:39,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:39,377 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2023-11-19 07:49:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 07:49:39,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:39,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:39,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:49:39,380 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:39,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:39,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1500438086, now seen corresponding path program 1 times [2023-11-19 07:49:39,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:39,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928993623] [2023-11-19 07:49:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:39,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:39,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:39,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928993623] [2023-11-19 07:49:39,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928993623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:39,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:39,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:49:39,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668296323] [2023-11-19 07:49:39,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:39,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:49:39,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:49:39,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:49:39,659 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:39,887 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2023-11-19 07:49:39,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:49:39,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-19 07:49:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:39,892 INFO L225 Difference]: With dead ends: 88 [2023-11-19 07:49:39,892 INFO L226 Difference]: Without dead ends: 61 [2023-11-19 07:49:39,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:49:39,904 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:39,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 221 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-19 07:49:39,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2023-11-19 07:49:39,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 43 states have (on average 1.302325581395349) internal successors, (56), 48 states have internal predecessors, (56), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:49:39,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2023-11-19 07:49:39,912 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 17 [2023-11-19 07:49:39,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:39,913 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2023-11-19 07:49:39,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:39,913 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2023-11-19 07:49:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:49:39,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:39,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:39,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:49:39,919 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:39,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash -991314935, now seen corresponding path program 1 times [2023-11-19 07:49:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:39,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812748128] [2023-11-19 07:49:39,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:40,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:40,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812748128] [2023-11-19 07:49:40,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812748128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:40,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:40,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:49:40,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215472807] [2023-11-19 07:49:40,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:40,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:49:40,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:49:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:40,138 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:40,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:40,279 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2023-11-19 07:49:40,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:49:40,280 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-11-19 07:49:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:40,281 INFO L225 Difference]: With dead ends: 95 [2023-11-19 07:49:40,281 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:49:40,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:49:40,283 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 17 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:40,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 171 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:40,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:49:40,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2023-11-19 07:49:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 42 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:49:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2023-11-19 07:49:40,296 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 16 [2023-11-19 07:49:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:40,297 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2023-11-19 07:49:40,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2023-11-19 07:49:40,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:49:40,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:40,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:40,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:49:40,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:40,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:40,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1476374573, now seen corresponding path program 1 times [2023-11-19 07:49:40,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:40,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143967098] [2023-11-19 07:49:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:40,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:40,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:40,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:40,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143967098] [2023-11-19 07:49:40,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143967098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:40,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:40,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 07:49:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979236694] [2023-11-19 07:49:40,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:40,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:49:40,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:40,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:49:40,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:49:40,449 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:40,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:40,615 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2023-11-19 07:49:40,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:49:40,615 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-19 07:49:40,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:40,616 INFO L225 Difference]: With dead ends: 82 [2023-11-19 07:49:40,616 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:49:40,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:49:40,620 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:40,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 180 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:49:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2023-11-19 07:49:40,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 37 states have (on average 1.2432432432432432) internal successors, (46), 41 states have internal predecessors, (46), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:49:40,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-11-19 07:49:40,634 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 18 [2023-11-19 07:49:40,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:40,635 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-11-19 07:49:40,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:49:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-11-19 07:49:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:49:40,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:40,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:40,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:49:40,636 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:40,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash -814801186, now seen corresponding path program 1 times [2023-11-19 07:49:40,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:40,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555456361] [2023-11-19 07:49:40,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:40,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:40,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:49:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:40,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:40,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:40,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555456361] [2023-11-19 07:49:40,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555456361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:40,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:40,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:49:40,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166293649] [2023-11-19 07:49:40,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:40,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:49:40,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:40,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:49:40,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:49:40,808 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:40,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:40,937 INFO L93 Difference]: Finished difference Result 93 states and 103 transitions. [2023-11-19 07:49:40,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:49:40,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2023-11-19 07:49:40,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:40,938 INFO L225 Difference]: With dead ends: 93 [2023-11-19 07:49:40,938 INFO L226 Difference]: Without dead ends: 55 [2023-11-19 07:49:40,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:40,940 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 26 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:40,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 106 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:49:40,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-19 07:49:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2023-11-19 07:49:40,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 38 states have (on average 1.236842105263158) internal successors, (47), 42 states have internal predecessors, (47), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:49:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 54 transitions. [2023-11-19 07:49:40,946 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 54 transitions. Word has length 23 [2023-11-19 07:49:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:40,947 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 54 transitions. [2023-11-19 07:49:40,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2023-11-19 07:49:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:49:40,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:40,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:40,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:49:40,949 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:40,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:40,949 INFO L85 PathProgramCache]: Analyzing trace with hash 595648175, now seen corresponding path program 1 times [2023-11-19 07:49:40,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:40,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060811718] [2023-11-19 07:49:40,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:40,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:40,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:41,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:41,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:49:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:41,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:41,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060811718] [2023-11-19 07:49:41,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060811718] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:41,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444755639] [2023-11-19 07:49:41,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:41,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:41,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:41,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:41,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:49:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:41,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-19 07:49:41,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:41,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:41,615 WARN L876 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset (select .cse0 LDV_INIT_LIST_HEAD_~list.offset)) .cse1 (select .cse0 .cse1))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2023-11-19 07:49:41,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:41,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:41,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2023-11-19 07:49:41,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:49:41,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:41,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444755639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:41,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:49:41,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2023-11-19 07:49:41,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775613523] [2023-11-19 07:49:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:41,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:49:41,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:41,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:49:41,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=234, Unknown=1, NotChecked=30, Total=306 [2023-11-19 07:49:41,827 INFO L87 Difference]: Start difference. First operand 49 states and 54 transitions. Second operand has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:42,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:42,138 INFO L93 Difference]: Finished difference Result 55 states and 62 transitions. [2023-11-19 07:49:42,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-19 07:49:42,139 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-11-19 07:49:42,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:42,141 INFO L225 Difference]: With dead ends: 55 [2023-11-19 07:49:42,141 INFO L226 Difference]: Without dead ends: 54 [2023-11-19 07:49:42,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=436, Unknown=1, NotChecked=42, Total=552 [2023-11-19 07:49:42,142 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 29 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:42,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 214 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 167 Invalid, 0 Unknown, 79 Unchecked, 0.2s Time] [2023-11-19 07:49:42,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-19 07:49:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2023-11-19 07:49:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 41 states have internal predecessors, (46), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:49:42,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-11-19 07:49:42,150 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 24 [2023-11-19 07:49:42,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:42,151 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-11-19 07:49:42,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 12 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-11-19 07:49:42,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:49:42,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:42,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:42,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:42,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:42,367 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:42,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1285224321, now seen corresponding path program 1 times [2023-11-19 07:49:42,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:42,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228437345] [2023-11-19 07:49:42,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:42,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:42,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:42,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:49:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:42,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:42,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:42,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228437345] [2023-11-19 07:49:42,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228437345] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:42,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063329022] [2023-11-19 07:49:42,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:42,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:42,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:42,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:42,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:49:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:42,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 80 conjunts are in the unsatisfiable core [2023-11-19 07:49:42,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:42,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:42,857 WARN L876 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset (select .cse0 LDV_INIT_LIST_HEAD_~list.offset)) .cse1 (select .cse0 .cse1))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2023-11-19 07:49:42,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:42,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:42,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2023-11-19 07:49:43,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:49:43,009 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:43,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063329022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:43,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:49:43,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 18 [2023-11-19 07:49:43,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114290598] [2023-11-19 07:49:43,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:43,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:49:43,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:43,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:49:43,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=234, Unknown=1, NotChecked=30, Total=306 [2023-11-19 07:49:43,012 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:43,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:43,295 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-11-19 07:49:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:49:43,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-11-19 07:49:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:43,296 INFO L225 Difference]: With dead ends: 54 [2023-11-19 07:49:43,296 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 07:49:43,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=436, Unknown=1, NotChecked=42, Total=552 [2023-11-19 07:49:43,297 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:43,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 238 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 178 Invalid, 0 Unknown, 78 Unchecked, 0.1s Time] [2023-11-19 07:49:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 07:49:43,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2023-11-19 07:49:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.1842105263157894) internal successors, (45), 40 states have internal predecessors, (45), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:49:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2023-11-19 07:49:43,307 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 25 [2023-11-19 07:49:43,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:43,308 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2023-11-19 07:49:43,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2023-11-19 07:49:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 07:49:43,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:43,309 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:43,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:43,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:49:43,531 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:43,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash 842874951, now seen corresponding path program 1 times [2023-11-19 07:49:43,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:43,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211734484] [2023-11-19 07:49:43,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:43,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:43,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:43,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:43,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:49:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:49:43,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:43,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211734484] [2023-11-19 07:49:43,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211734484] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:43,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:43,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 07:49:43,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580511130] [2023-11-19 07:49:43,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:43,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 07:49:43,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:43,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 07:49:43,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:49:43,722 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:43,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:43,936 INFO L93 Difference]: Finished difference Result 73 states and 81 transitions. [2023-11-19 07:49:43,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:49:43,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2023-11-19 07:49:43,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:43,938 INFO L225 Difference]: With dead ends: 73 [2023-11-19 07:49:43,938 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 07:49:43,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:49:43,939 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 41 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:43,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 142 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:49:43,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 07:49:43,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2023-11-19 07:49:43,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 40 states have internal predecessors, (44), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:49:43,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2023-11-19 07:49:43,951 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 29 [2023-11-19 07:49:43,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:43,951 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2023-11-19 07:49:43,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 6 states have internal predecessors, (24), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:49:43,952 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2023-11-19 07:49:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 07:49:43,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:43,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:43,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:49:43,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_kobject_putErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 07:49:43,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash 221950145, now seen corresponding path program 1 times [2023-11-19 07:49:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:43,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659664816] [2023-11-19 07:49:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:43,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:44,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:49:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:49:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:44,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:44,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659664816] [2023-11-19 07:49:44,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659664816] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:49:44,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922364338] [2023-11-19 07:49:44,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:44,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:44,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:44,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:44,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_23645083-2a16-4d0a-a251-ddefacad404b/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:49:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:44,428 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 128 conjunts are in the unsatisfiable core [2023-11-19 07:49:44,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:44,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:44,627 WARN L876 $PredicateComparison]: unable to prove that (exists ((LDV_INIT_LIST_HEAD_~list.offset Int)) (and (= |c_#memory_int| (store |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base| (let ((.cse0 (select |c_#memory_int| |c_LDV_INIT_LIST_HEAD_#in~list.base|)) (.cse1 (+ LDV_INIT_LIST_HEAD_~list.offset 4))) (store (store (select |c_old(#memory_int)| |c_LDV_INIT_LIST_HEAD_#in~list.base|) LDV_INIT_LIST_HEAD_~list.offset (select .cse0 LDV_INIT_LIST_HEAD_~list.offset)) .cse1 (select .cse0 .cse1))))) (<= LDV_INIT_LIST_HEAD_~list.offset |c_LDV_INIT_LIST_HEAD_#in~list.offset|))) is different from true [2023-11-19 07:49:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:44,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 11 [2023-11-19 07:49:44,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2023-11-19 07:49:44,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-19 07:49:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:45,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:23,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922364338] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:23,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:50:23,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 18] total 23 [2023-11-19 07:50:23,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857795533] [2023-11-19 07:50:23,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:23,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-19 07:50:23,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:23,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-19 07:50:23,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=832, Unknown=17, NotChecked=58, Total=992 [2023-11-19 07:50:23,478 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 18 states have internal predecessors, (54), 4 states have call successors, (6), 6 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)