./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX --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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:16:27,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:16:27,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:16:27,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:16:27,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:16:27,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:16:27,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:16:27,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:16:27,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:16:27,945 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:16:27,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:16:27,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:16:27,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:16:27,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:16:27,947 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:16:27,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:16:27,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:16:27,952 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:16:27,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:16:27,956 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:16:27,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:16:27,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:16:27,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:16:27,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:16:27,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:16:27,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:16:27,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:16:27,960 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:16:27,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:16:27,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:16:27,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:16:27,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:16:27,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:16:27,974 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:16:27,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:16:27,975 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:16:27,975 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:16:27,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:16:27,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:16:27,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:16:27,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:16:27,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:16:27,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:16:27,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:16:27,979 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_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-11-08 19:16:28,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:16:28,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:16:28,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:16:28,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:16:28,346 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:16:28,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c Unable to find full path for "g++" [2024-11-08 19:16:30,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:16:30,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:16:30,696 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound1.c [2024-11-08 19:16:30,708 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/data/8194c467a/7e6225de5e9b47d0bc7723a61554c907/FLAG343188368 [2024-11-08 19:16:31,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/data/8194c467a/7e6225de5e9b47d0bc7723a61554c907 [2024-11-08 19:16:31,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:16:31,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:16:31,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:16:31,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:16:31,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:16:31,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa92d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31, skipping insertion in model container [2024-11-08 19:16:31,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:16:31,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:16:31,317 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:16:31,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:16:31,355 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:16:31,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31 WrapperNode [2024-11-08 19:16:31,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:16:31,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:16:31,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:16:31,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:16:31,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,402 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2024-11-08 19:16:31,402 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:16:31,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:16:31,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:16:31,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:16:31,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,431 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 19:16:31,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,442 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:16:31,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:16:31,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:16:31,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:16:31,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (1/1) ... [2024-11-08 19:16:31,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:16:31,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:31,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:16:31,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:16:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:16:31,510 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 19:16:31,510 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 19:16:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:16:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:16:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:16:31,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 19:16:31,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 19:16:31,592 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:16:31,595 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:16:31,900 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-08 19:16:31,900 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:16:31,917 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:16:31,917 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:16:31,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:16:31 BoogieIcfgContainer [2024-11-08 19:16:31,918 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:16:31,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:16:31,921 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:16:31,925 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:16:31,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:16:31" (1/3) ... [2024-11-08 19:16:31,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225f7feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:16:31, skipping insertion in model container [2024-11-08 19:16:31,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:16:31" (2/3) ... [2024-11-08 19:16:31,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225f7feb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:16:31, skipping insertion in model container [2024-11-08 19:16:31,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:16:31" (3/3) ... [2024-11-08 19:16:31,931 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound1.c [2024-11-08 19:16:31,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:16:31,953 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-08 19:16:32,012 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:16:32,021 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=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;@40b67962, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:16:32,022 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-08 19:16:32,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 19:16:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 19:16:32,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:32,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:32,034 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:32,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1395923600, now seen corresponding path program 1 times [2024-11-08 19:16:32,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:32,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732536175] [2024-11-08 19:16:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:32,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:32,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:32,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:32,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:32,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:32,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732536175] [2024-11-08 19:16:32,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732536175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:32,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:32,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:16:32,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167012636] [2024-11-08 19:16:32,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:32,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 19:16:32,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:32,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 19:16:32,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:16:32,243 INFO L87 Difference]: Start difference. First operand has 64 states, 37 states have (on average 1.7027027027027026) internal successors, (63), 57 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 19:16:32,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:32,266 INFO L93 Difference]: Finished difference Result 124 states and 141 transitions. [2024-11-08 19:16:32,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 19:16:32,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-08 19:16:32,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:32,275 INFO L225 Difference]: With dead ends: 124 [2024-11-08 19:16:32,275 INFO L226 Difference]: Without dead ends: 57 [2024-11-08 19:16:32,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 19:16:32,282 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:32,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:16:32,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-08 19:16:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-08 19:16:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 32 states have (on average 1.65625) internal successors, (53), 51 states have internal predecessors, (53), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 19:16:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2024-11-08 19:16:32,327 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 15 [2024-11-08 19:16:32,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:32,328 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2024-11-08 19:16:32,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 19:16:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2024-11-08 19:16:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 19:16:32,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:32,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:32,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:16:32,331 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:32,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:32,332 INFO L85 PathProgramCache]: Analyzing trace with hash -2140720801, now seen corresponding path program 1 times [2024-11-08 19:16:32,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:32,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882898872] [2024-11-08 19:16:32,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:32,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:32,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860323724] [2024-11-08 19:16:32,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:32,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:32,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:32,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:32,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:16:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:32,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 19:16:32,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:32,487 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:32,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:16:32,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:32,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882898872] [2024-11-08 19:16:32,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860323724] [2024-11-08 19:16:32,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860323724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:32,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:32,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:16:32,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825929853] [2024-11-08 19:16:32,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:32,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 19:16:32,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:32,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 19:16:32,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:16:32,495 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:32,696 INFO L93 Difference]: Finished difference Result 91 states and 101 transitions. [2024-11-08 19:16:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 19:16:32,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-08 19:16:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:32,699 INFO L225 Difference]: With dead ends: 91 [2024-11-08 19:16:32,699 INFO L226 Difference]: Without dead ends: 85 [2024-11-08 19:16:32,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 19:16:32,702 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 26 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:32,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 76 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-08 19:16:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 77. [2024-11-08 19:16:32,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 51 states have (on average 1.6470588235294117) internal successors, (84), 70 states have internal predecessors, (84), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 19:16:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 92 transitions. [2024-11-08 19:16:32,714 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 92 transitions. Word has length 15 [2024-11-08 19:16:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:32,716 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 92 transitions. [2024-11-08 19:16:32,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 92 transitions. [2024-11-08 19:16:32,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-08 19:16:32,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:32,718 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:32,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:16:32,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:32,920 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:32,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:32,920 INFO L85 PathProgramCache]: Analyzing trace with hash 56646529, now seen corresponding path program 1 times [2024-11-08 19:16:32,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:32,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971357943] [2024-11-08 19:16:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:32,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:33,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:33,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:33,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971357943] [2024-11-08 19:16:33,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971357943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:33,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:33,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:16:33,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254656237] [2024-11-08 19:16:33,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:33,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:33,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:33,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:33,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:33,245 INFO L87 Difference]: Start difference. First operand 77 states and 92 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:33,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:33,549 INFO L93 Difference]: Finished difference Result 121 states and 153 transitions. [2024-11-08 19:16:33,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:33,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-08 19:16:33,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:33,553 INFO L225 Difference]: With dead ends: 121 [2024-11-08 19:16:33,553 INFO L226 Difference]: Without dead ends: 114 [2024-11-08 19:16:33,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:33,555 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 21 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:33,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 94 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:33,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-08 19:16:33,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 110. [2024-11-08 19:16:33,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 82 states have (on average 1.5609756097560976) internal successors, (128), 101 states have internal predecessors, (128), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 19:16:33,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 140 transitions. [2024-11-08 19:16:33,575 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 140 transitions. Word has length 17 [2024-11-08 19:16:33,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:33,576 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 140 transitions. [2024-11-08 19:16:33,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:33,576 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 140 transitions. [2024-11-08 19:16:33,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 19:16:33,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:33,577 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:33,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:16:33,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:33,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:33,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1756042450, now seen corresponding path program 1 times [2024-11-08 19:16:33,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:33,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706119204] [2024-11-08 19:16:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:33,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:33,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:33,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:33,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:33,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706119204] [2024-11-08 19:16:33,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706119204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:33,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:33,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:16:33,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842040831] [2024-11-08 19:16:33,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:33,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:33,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:33,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:33,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:33,791 INFO L87 Difference]: Start difference. First operand 110 states and 140 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:33,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:33,939 INFO L93 Difference]: Finished difference Result 116 states and 141 transitions. [2024-11-08 19:16:33,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:33,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-08 19:16:33,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:33,941 INFO L225 Difference]: With dead ends: 116 [2024-11-08 19:16:33,941 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 19:16:33,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:33,943 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 32 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:33,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 78 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:33,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 19:16:33,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-08 19:16:33,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5324675324675325) internal successors, (118), 96 states have internal predecessors, (118), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 19:16:33,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2024-11-08 19:16:33,957 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 18 [2024-11-08 19:16:33,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:33,958 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2024-11-08 19:16:33,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:33,959 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2024-11-08 19:16:33,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 19:16:33,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:33,959 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:33,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:16:33,960 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:33,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:33,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1397258845, now seen corresponding path program 1 times [2024-11-08 19:16:33,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:33,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985237286] [2024-11-08 19:16:33,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:33,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:34,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:34,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:34,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:34,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:34,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985237286] [2024-11-08 19:16:34,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985237286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:34,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810412478] [2024-11-08 19:16:34,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:34,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:34,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:34,193 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:34,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:16:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:34,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:16:34,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:34,398 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:16:34,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810412478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:34,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:34,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-08 19:16:34,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295986461] [2024-11-08 19:16:34,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:34,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:34,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:34,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:16:34,400 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:34,546 INFO L93 Difference]: Finished difference Result 108 states and 134 transitions. [2024-11-08 19:16:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:34,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-08 19:16:34,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:34,549 INFO L225 Difference]: With dead ends: 108 [2024-11-08 19:16:34,552 INFO L226 Difference]: Without dead ends: 107 [2024-11-08 19:16:34,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:16:34,554 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 72 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:34,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 64 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-08 19:16:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-08 19:16:34,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 96 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 19:16:34,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 129 transitions. [2024-11-08 19:16:34,581 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 129 transitions. Word has length 19 [2024-11-08 19:16:34,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:34,582 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 129 transitions. [2024-11-08 19:16:34,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:34,583 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 129 transitions. [2024-11-08 19:16:34,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 19:16:34,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:34,583 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:34,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:16:34,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:34,788 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:34,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:34,789 INFO L85 PathProgramCache]: Analyzing trace with hash -365351180, now seen corresponding path program 1 times [2024-11-08 19:16:34,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:34,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696846707] [2024-11-08 19:16:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:34,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:34,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429980353] [2024-11-08 19:16:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:34,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:34,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:34,815 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:34,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:16:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:34,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:16:34,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:35,015 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:16:35,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:35,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696846707] [2024-11-08 19:16:35,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:35,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429980353] [2024-11-08 19:16:35,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429980353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:35,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:35,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:16:35,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139415583] [2024-11-08 19:16:35,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:35,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:35,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:35,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:35,022 INFO L87 Difference]: Start difference. First operand 105 states and 129 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:35,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:35,179 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2024-11-08 19:16:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:35,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-08 19:16:35,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:35,181 INFO L225 Difference]: With dead ends: 106 [2024-11-08 19:16:35,183 INFO L226 Difference]: Without dead ends: 105 [2024-11-08 19:16:35,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:16:35,185 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:35,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 69 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-08 19:16:35,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-08 19:16:35,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 77 states have (on average 1.5064935064935066) internal successors, (116), 96 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 19:16:35,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 128 transitions. [2024-11-08 19:16:35,208 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 128 transitions. Word has length 20 [2024-11-08 19:16:35,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:35,208 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 128 transitions. [2024-11-08 19:16:35,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 19:16:35,209 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 128 transitions. [2024-11-08 19:16:35,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 19:16:35,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:35,209 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:35,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:35,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-08 19:16:35,410 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:35,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:35,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1338818376, now seen corresponding path program 1 times [2024-11-08 19:16:35,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:35,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999187156] [2024-11-08 19:16:35,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:35,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:35,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:35,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:35,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:35,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:35,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999187156] [2024-11-08 19:16:35,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999187156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:35,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443309893] [2024-11-08 19:16:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:35,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:35,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:35,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:35,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:16:35,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:35,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:16:35,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:35,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:35,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443309893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:35,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:35,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-08 19:16:35,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432122049] [2024-11-08 19:16:35,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:35,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:16:35,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:16:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:16:35,906 INFO L87 Difference]: Start difference. First operand 105 states and 128 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:36,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:36,053 INFO L93 Difference]: Finished difference Result 158 states and 195 transitions. [2024-11-08 19:16:36,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:16:36,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 32 [2024-11-08 19:16:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:36,055 INFO L225 Difference]: With dead ends: 158 [2024-11-08 19:16:36,055 INFO L226 Difference]: Without dead ends: 156 [2024-11-08 19:16:36,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:36,058 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 216 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:36,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 210 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-08 19:16:36,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 146. [2024-11-08 19:16:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 116 states have (on average 1.5) internal successors, (174), 135 states have internal predecessors, (174), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-08 19:16:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 190 transitions. [2024-11-08 19:16:36,084 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 190 transitions. Word has length 32 [2024-11-08 19:16:36,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:36,084 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 190 transitions. [2024-11-08 19:16:36,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:36,085 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 190 transitions. [2024-11-08 19:16:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 19:16:36,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:36,086 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:36,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:36,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 19:16:36,290 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:36,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:36,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1446303218, now seen corresponding path program 1 times [2024-11-08 19:16:36,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:36,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760105316] [2024-11-08 19:16:36,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:36,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:36,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:36,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:36,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:36,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:36,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:36,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760105316] [2024-11-08 19:16:36,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760105316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:36,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:36,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:16:36,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982894845] [2024-11-08 19:16:36,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:36,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:36,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:36,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:36,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:36,374 INFO L87 Difference]: Start difference. First operand 146 states and 190 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:36,422 INFO L93 Difference]: Finished difference Result 146 states and 190 transitions. [2024-11-08 19:16:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:36,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-08 19:16:36,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:36,424 INFO L225 Difference]: With dead ends: 146 [2024-11-08 19:16:36,425 INFO L226 Difference]: Without dead ends: 144 [2024-11-08 19:16:36,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:16:36,426 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 57 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:36,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 73 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 19:16:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-08 19:16:36,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-08 19:16:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 116 states have (on average 1.456896551724138) internal successors, (169), 133 states have internal predecessors, (169), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-08 19:16:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 185 transitions. [2024-11-08 19:16:36,447 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 185 transitions. Word has length 33 [2024-11-08 19:16:36,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:36,447 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 185 transitions. [2024-11-08 19:16:36,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 185 transitions. [2024-11-08 19:16:36,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 19:16:36,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:36,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:36,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:16:36,451 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:36,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:36,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1091076326, now seen corresponding path program 1 times [2024-11-08 19:16:36,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:36,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894569318] [2024-11-08 19:16:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:36,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:36,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777073265] [2024-11-08 19:16:36,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:36,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:36,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:36,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:36,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:16:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:36,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:16:36,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:36,718 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:36,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:36,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894569318] [2024-11-08 19:16:36,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:36,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777073265] [2024-11-08 19:16:36,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777073265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:36,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:36,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-08 19:16:37,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497650348] [2024-11-08 19:16:37,000 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:37,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:16:37,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:37,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:16:37,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:16:37,004 INFO L87 Difference]: Start difference. First operand 144 states and 185 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:37,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:37,167 INFO L93 Difference]: Finished difference Result 151 states and 188 transitions. [2024-11-08 19:16:37,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:16:37,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-11-08 19:16:37,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:37,170 INFO L225 Difference]: With dead ends: 151 [2024-11-08 19:16:37,171 INFO L226 Difference]: Without dead ends: 144 [2024-11-08 19:16:37,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:16:37,172 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 72 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:37,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 49 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:37,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-08 19:16:37,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2024-11-08 19:16:37,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 117 states have (on average 1.3418803418803418) internal successors, (157), 129 states have internal predecessors, (157), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-08 19:16:37,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 173 transitions. [2024-11-08 19:16:37,187 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 173 transitions. Word has length 35 [2024-11-08 19:16:37,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:37,190 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 173 transitions. [2024-11-08 19:16:37,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:37,190 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 173 transitions. [2024-11-08 19:16:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-08 19:16:37,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:37,191 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:37,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 19:16:37,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 19:16:37,393 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:37,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:37,393 INFO L85 PathProgramCache]: Analyzing trace with hash -536372215, now seen corresponding path program 1 times [2024-11-08 19:16:37,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:37,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496224033] [2024-11-08 19:16:37,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:37,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472468337] [2024-11-08 19:16:37,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:37,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:37,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:37,410 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:37,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 19:16:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:37,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:16:37,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:37,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:37,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:38,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:38,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496224033] [2024-11-08 19:16:38,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:38,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472468337] [2024-11-08 19:16:38,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472468337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:38,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:38,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-08 19:16:38,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824736478] [2024-11-08 19:16:38,114 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:38,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:16:38,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:38,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:16:38,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:16:38,115 INFO L87 Difference]: Start difference. First operand 140 states and 173 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:38,316 INFO L93 Difference]: Finished difference Result 188 states and 231 transitions. [2024-11-08 19:16:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:16:38,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-08 19:16:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:38,318 INFO L225 Difference]: With dead ends: 188 [2024-11-08 19:16:38,319 INFO L226 Difference]: Without dead ends: 185 [2024-11-08 19:16:38,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:16:38,320 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 97 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:38,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 89 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:38,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-08 19:16:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 177. [2024-11-08 19:16:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 152 states have (on average 1.3289473684210527) internal successors, (202), 164 states have internal predecessors, (202), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 19:16:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 222 transitions. [2024-11-08 19:16:38,333 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 222 transitions. Word has length 36 [2024-11-08 19:16:38,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:38,334 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 222 transitions. [2024-11-08 19:16:38,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 222 transitions. [2024-11-08 19:16:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-08 19:16:38,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:38,335 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:38,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 19:16:38,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 19:16:38,536 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:38,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:38,537 INFO L85 PathProgramCache]: Analyzing trace with hash 486518226, now seen corresponding path program 1 times [2024-11-08 19:16:38,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:38,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50702270] [2024-11-08 19:16:38,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:38,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:38,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:38,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:38,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:38,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:38,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:38,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50702270] [2024-11-08 19:16:38,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50702270] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:38,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444744671] [2024-11-08 19:16:38,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:38,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:38,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:38,630 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:38,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 19:16:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:38,680 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:16:38,681 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:38,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:16:38,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444744671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:38,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:38,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-08 19:16:38,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91951953] [2024-11-08 19:16:38,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:38,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:16:38,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:38,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:16:38,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:38,824 INFO L87 Difference]: Start difference. First operand 177 states and 222 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:39,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:39,070 INFO L93 Difference]: Finished difference Result 177 states and 222 transitions. [2024-11-08 19:16:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:16:39,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2024-11-08 19:16:39,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:39,072 INFO L225 Difference]: With dead ends: 177 [2024-11-08 19:16:39,073 INFO L226 Difference]: Without dead ends: 175 [2024-11-08 19:16:39,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:16:39,074 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 25 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:39,074 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 65 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:39,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-08 19:16:39,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2024-11-08 19:16:39,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.3154362416107384) internal successors, (196), 159 states have internal predecessors, (196), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 19:16:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 216 transitions. [2024-11-08 19:16:39,086 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 216 transitions. Word has length 37 [2024-11-08 19:16:39,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:39,086 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 216 transitions. [2024-11-08 19:16:39,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 216 transitions. [2024-11-08 19:16:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 19:16:39,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:39,088 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:39,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:39,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 19:16:39,292 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:39,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:39,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2097804127, now seen corresponding path program 1 times [2024-11-08 19:16:39,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:39,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936821176] [2024-11-08 19:16:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:39,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:39,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:39,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:39,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:39,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:39,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936821176] [2024-11-08 19:16:39,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936821176] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:39,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052377417] [2024-11-08 19:16:39,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:39,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:39,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:39,417 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:39,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 19:16:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:39,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:16:39,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:39,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:39,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052377417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:39,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:16:39,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-08 19:16:39,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038397686] [2024-11-08 19:16:39,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:39,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:16:39,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:39,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:16:39,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:39,694 INFO L87 Difference]: Start difference. First operand 172 states and 216 transitions. Second operand has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 19:16:39,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:39,997 INFO L93 Difference]: Finished difference Result 180 states and 220 transitions. [2024-11-08 19:16:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:39,998 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-11-08 19:16:39,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:39,999 INFO L225 Difference]: With dead ends: 180 [2024-11-08 19:16:39,999 INFO L226 Difference]: Without dead ends: 172 [2024-11-08 19:16:40,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:16:40,001 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 35 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:40,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 128 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:40,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-08 19:16:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-08 19:16:40,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 159 states have internal predecessors, (192), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 19:16:40,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2024-11-08 19:16:40,016 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 38 [2024-11-08 19:16:40,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:40,016 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2024-11-08 19:16:40,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.625) internal successors, (53), 9 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 19:16:40,016 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2024-11-08 19:16:40,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:16:40,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:40,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:40,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:40,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 19:16:40,222 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:40,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:40,223 INFO L85 PathProgramCache]: Analyzing trace with hash -607418444, now seen corresponding path program 1 times [2024-11-08 19:16:40,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:40,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512688290] [2024-11-08 19:16:40,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:40,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:40,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:40,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512688290] [2024-11-08 19:16:40,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512688290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:40,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:40,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:16:40,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678976301] [2024-11-08 19:16:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:40,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:40,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:40,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:40,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:40,309 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:40,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:40,498 INFO L93 Difference]: Finished difference Result 173 states and 212 transitions. [2024-11-08 19:16:40,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-08 19:16:40,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:40,500 INFO L225 Difference]: With dead ends: 173 [2024-11-08 19:16:40,500 INFO L226 Difference]: Without dead ends: 172 [2024-11-08 19:16:40,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:40,501 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:40,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:40,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-08 19:16:40,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-08 19:16:40,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 149 states have (on average 1.261744966442953) internal successors, (188), 159 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 19:16:40,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 208 transitions. [2024-11-08 19:16:40,513 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 208 transitions. Word has length 39 [2024-11-08 19:16:40,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:40,514 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 208 transitions. [2024-11-08 19:16:40,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:40,514 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 208 transitions. [2024-11-08 19:16:40,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-08 19:16:40,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:40,515 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:40,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 19:16:40,515 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:40,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1786267222, now seen corresponding path program 1 times [2024-11-08 19:16:40,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:40,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850438693] [2024-11-08 19:16:40,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:40,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:40,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,821 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:40,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:40,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850438693] [2024-11-08 19:16:40,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850438693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:40,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826118184] [2024-11-08 19:16:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:40,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:40,826 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:40,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 19:16:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:40,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:16:40,882 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:41,026 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:41,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:16:41,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826118184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:41,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:41,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-08 19:16:41,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366207510] [2024-11-08 19:16:41,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:41,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 19:16:41,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:41,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 19:16:41,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-08 19:16:41,452 INFO L87 Difference]: Start difference. First operand 172 states and 208 transitions. Second operand has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 19:16:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:42,312 INFO L93 Difference]: Finished difference Result 173 states and 208 transitions. [2024-11-08 19:16:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:16:42,313 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2024-11-08 19:16:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:42,314 INFO L225 Difference]: With dead ends: 173 [2024-11-08 19:16:42,314 INFO L226 Difference]: Without dead ends: 170 [2024-11-08 19:16:42,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-08 19:16:42,315 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 139 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:42,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 127 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:16:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-08 19:16:42,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 143. [2024-11-08 19:16:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 124 states have (on average 1.2338709677419355) internal successors, (153), 131 states have internal predecessors, (153), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 19:16:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 171 transitions. [2024-11-08 19:16:42,328 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 171 transitions. Word has length 39 [2024-11-08 19:16:42,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:42,328 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 171 transitions. [2024-11-08 19:16:42,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 19:16:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 171 transitions. [2024-11-08 19:16:42,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 19:16:42,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:42,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:42,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 19:16:42,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:42,534 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:42,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1650102525, now seen corresponding path program 1 times [2024-11-08 19:16:42,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:42,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679798681] [2024-11-08 19:16:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:42,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:42,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:42,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:42,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:42,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679798681] [2024-11-08 19:16:42,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679798681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:42,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:16:42,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:16:42,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899291030] [2024-11-08 19:16:42,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:42,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:16:42,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:42,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:16:42,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:42,630 INFO L87 Difference]: Start difference. First operand 143 states and 171 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:42,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:42,888 INFO L93 Difference]: Finished difference Result 144 states and 171 transitions. [2024-11-08 19:16:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:16:42,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-08 19:16:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:42,889 INFO L225 Difference]: With dead ends: 144 [2024-11-08 19:16:42,890 INFO L226 Difference]: Without dead ends: 143 [2024-11-08 19:16:42,890 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:16:42,890 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:42,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:42,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-08 19:16:42,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-08 19:16:42,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 124 states have (on average 1.2016129032258065) internal successors, (149), 131 states have internal predecessors, (149), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 19:16:42,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2024-11-08 19:16:42,903 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 40 [2024-11-08 19:16:42,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:42,903 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2024-11-08 19:16:42,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2024-11-08 19:16:42,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-08 19:16:42,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:42,905 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:42,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 19:16:42,905 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:42,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:42,910 INFO L85 PathProgramCache]: Analyzing trace with hash 460291021, now seen corresponding path program 1 times [2024-11-08 19:16:42,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:42,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939810265] [2024-11-08 19:16:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:42,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:42,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626651903] [2024-11-08 19:16:42,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:42,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:42,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:42,924 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:42,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 19:16:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:42,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:16:42,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:43,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:43,320 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 19:16:43,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:43,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939810265] [2024-11-08 19:16:43,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:43,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626651903] [2024-11-08 19:16:43,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626651903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:43,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:16:43,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-08 19:16:43,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688558815] [2024-11-08 19:16:43,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:43,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:16:43,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:43,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:16:43,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:43,327 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 19:16:43,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:43,896 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2024-11-08 19:16:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:16:43,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 40 [2024-11-08 19:16:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:43,899 INFO L225 Difference]: With dead ends: 230 [2024-11-08 19:16:43,899 INFO L226 Difference]: Without dead ends: 158 [2024-11-08 19:16:43,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:16:43,900 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 69 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:43,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 104 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:16:43,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-08 19:16:43,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-08 19:16:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.1654676258992807) internal successors, (162), 145 states have internal predecessors, (162), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-08 19:16:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 182 transitions. [2024-11-08 19:16:43,918 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 182 transitions. Word has length 40 [2024-11-08 19:16:43,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:43,918 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 182 transitions. [2024-11-08 19:16:43,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 11 states have internal predecessors, (54), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 19:16:43,919 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 182 transitions. [2024-11-08 19:16:43,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 19:16:43,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:43,920 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:43,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 19:16:44,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 19:16:44,121 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:44,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:44,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1289546014, now seen corresponding path program 2 times [2024-11-08 19:16:44,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:44,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375025585] [2024-11-08 19:16:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:44,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859993179] [2024-11-08 19:16:44,135 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:16:44,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:44,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:44,137 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:44,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 19:16:44,194 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:16:44,194 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:16:44,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:16:44,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:16:44,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:44,712 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:16:44,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:44,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375025585] [2024-11-08 19:16:44,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:44,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859993179] [2024-11-08 19:16:44,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859993179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:44,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:16:44,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-08 19:16:44,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323823899] [2024-11-08 19:16:44,713 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:44,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:16:44,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:16:44,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:16:44,714 INFO L87 Difference]: Start difference. First operand 158 states and 182 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:45,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:45,682 INFO L93 Difference]: Finished difference Result 325 states and 386 transitions. [2024-11-08 19:16:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:16:45,682 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 56 [2024-11-08 19:16:45,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:45,685 INFO L225 Difference]: With dead ends: 325 [2024-11-08 19:16:45,686 INFO L226 Difference]: Without dead ends: 322 [2024-11-08 19:16:45,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:16:45,687 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 175 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:45,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 210 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:16:45,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-08 19:16:45,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 300. [2024-11-08 19:16:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 274 states have (on average 1.1715328467153285) internal successors, (321), 279 states have internal predecessors, (321), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 19:16:45,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 357 transitions. [2024-11-08 19:16:45,715 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 357 transitions. Word has length 56 [2024-11-08 19:16:45,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:45,716 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 357 transitions. [2024-11-08 19:16:45,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:45,716 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 357 transitions. [2024-11-08 19:16:45,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-08 19:16:45,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:45,717 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:45,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:45,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 19:16:45,921 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:45,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:45,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1489897200, now seen corresponding path program 2 times [2024-11-08 19:16:45,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:45,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353435755] [2024-11-08 19:16:45,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:45,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:46,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:46,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:46,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:46,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 19:16:46,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:46,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353435755] [2024-11-08 19:16:46,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353435755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:46,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688034818] [2024-11-08 19:16:46,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:16:46,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:46,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:46,149 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:46,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 19:16:46,201 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:16:46,201 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:16:46,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 19:16:46,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:46,387 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 19:16:46,387 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:46,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688034818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:46,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:16:46,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2024-11-08 19:16:46,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010172705] [2024-11-08 19:16:46,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:46,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:16:46,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:46,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:16:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:16:46,498 INFO L87 Difference]: Start difference. First operand 300 states and 357 transitions. Second operand has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:46,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:46,779 INFO L93 Difference]: Finished difference Result 324 states and 383 transitions. [2024-11-08 19:16:46,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:16:46,780 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 58 [2024-11-08 19:16:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:46,782 INFO L225 Difference]: With dead ends: 324 [2024-11-08 19:16:46,782 INFO L226 Difference]: Without dead ends: 316 [2024-11-08 19:16:46,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:16:46,783 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 35 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:46,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 150 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:46,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-08 19:16:46,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2024-11-08 19:16:46,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 289 states have (on average 1.166089965397924) internal successors, (337), 294 states have internal predecessors, (337), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 19:16:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 375 transitions. [2024-11-08 19:16:46,809 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 375 transitions. Word has length 58 [2024-11-08 19:16:46,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:46,810 INFO L471 AbstractCegarLoop]: Abstraction has 316 states and 375 transitions. [2024-11-08 19:16:46,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.3) internal successors, (83), 11 states have internal predecessors, (83), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:46,810 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 375 transitions. [2024-11-08 19:16:46,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 19:16:46,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:46,811 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:46,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 19:16:47,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 19:16:47,012 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:47,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:47,013 INFO L85 PathProgramCache]: Analyzing trace with hash 538493887, now seen corresponding path program 3 times [2024-11-08 19:16:47,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:47,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301878428] [2024-11-08 19:16:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:16:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,239 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:16:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301878428] [2024-11-08 19:16:47,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301878428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836951243] [2024-11-08 19:16:47,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:16:47,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:47,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:47,242 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:47,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 19:16:47,289 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-08 19:16:47,289 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:16:47,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:16:47,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-08 19:16:47,436 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:16:47,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836951243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:16:47,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:47,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-08 19:16:47,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144898031] [2024-11-08 19:16:47,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:16:47,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:16:47,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:47,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:16:47,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:16:47,439 INFO L87 Difference]: Start difference. First operand 316 states and 375 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:47,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:47,596 INFO L93 Difference]: Finished difference Result 324 states and 379 transitions. [2024-11-08 19:16:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:16:47,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 78 [2024-11-08 19:16:47,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:47,599 INFO L225 Difference]: With dead ends: 324 [2024-11-08 19:16:47,599 INFO L226 Difference]: Without dead ends: 317 [2024-11-08 19:16:47,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:16:47,600 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:47,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 100 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:47,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-08 19:16:47,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 313. [2024-11-08 19:16:47,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 286 states have (on average 1.1538461538461537) internal successors, (330), 291 states have internal predecessors, (330), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 19:16:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 368 transitions. [2024-11-08 19:16:47,632 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 368 transitions. Word has length 78 [2024-11-08 19:16:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:47,632 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 368 transitions. [2024-11-08 19:16:47,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 19:16:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 368 transitions. [2024-11-08 19:16:47,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 19:16:47,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:47,636 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:47,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:47,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:47,839 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:47,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:47,840 INFO L85 PathProgramCache]: Analyzing trace with hash -999755255, now seen corresponding path program 1 times [2024-11-08 19:16:47,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:47,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405465812] [2024-11-08 19:16:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:47,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:47,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:47,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:48,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:16:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 19:16:48,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:48,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405465812] [2024-11-08 19:16:48,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405465812] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:48,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694753785] [2024-11-08 19:16:48,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:48,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:48,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:48,041 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:48,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 19:16:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:48,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:16:48,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-08 19:16:48,371 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:48,699 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-08 19:16:48,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694753785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:48,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:48,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-11-08 19:16:48,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440467249] [2024-11-08 19:16:48,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:48,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 19:16:48,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:48,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 19:16:48,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:16:48,702 INFO L87 Difference]: Start difference. First operand 313 states and 368 transitions. Second operand has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-08 19:16:49,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:49,893 INFO L93 Difference]: Finished difference Result 417 states and 495 transitions. [2024-11-08 19:16:49,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-08 19:16:49,894 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 78 [2024-11-08 19:16:49,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:49,896 INFO L225 Difference]: With dead ends: 417 [2024-11-08 19:16:49,896 INFO L226 Difference]: Without dead ends: 403 [2024-11-08 19:16:49,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 147 SyntacticMatches, 7 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 906 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=761, Invalid=2431, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 19:16:49,899 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 248 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:49,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 133 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:16:49,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-08 19:16:49,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 307. [2024-11-08 19:16:49,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 282 states have (on average 1.1134751773049645) internal successors, (314), 285 states have internal predecessors, (314), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 19:16:49,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 352 transitions. [2024-11-08 19:16:49,932 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 352 transitions. Word has length 78 [2024-11-08 19:16:49,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:49,933 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 352 transitions. [2024-11-08 19:16:49,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.777777777777778) internal successors, (104), 18 states have internal predecessors, (104), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-08 19:16:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 352 transitions. [2024-11-08 19:16:49,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 19:16:49,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:49,935 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:49,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:50,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:50,136 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:50,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:50,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2053750671, now seen corresponding path program 1 times [2024-11-08 19:16:50,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:50,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832889046] [2024-11-08 19:16:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:50,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:16:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:16:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 19:16:50,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:50,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832889046] [2024-11-08 19:16:50,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832889046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:50,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285574863] [2024-11-08 19:16:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:50,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:50,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:50,265 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:50,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 19:16:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:50,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:16:50,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 19:16:50,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 19:16:50,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285574863] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:50,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:50,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 19:16:50,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113913812] [2024-11-08 19:16:50,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:50,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:16:50,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:50,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:16:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:50,546 INFO L87 Difference]: Start difference. First operand 307 states and 352 transitions. Second operand has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:16:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:50,773 INFO L93 Difference]: Finished difference Result 1042 states and 1257 transitions. [2024-11-08 19:16:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:16:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 88 [2024-11-08 19:16:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:50,778 INFO L225 Difference]: With dead ends: 1042 [2024-11-08 19:16:50,778 INFO L226 Difference]: Without dead ends: 1040 [2024-11-08 19:16:50,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:50,779 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:50,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 153 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2024-11-08 19:16:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2024-11-08 19:16:50,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 969 states have (on average 1.0691434468524252) internal successors, (1036), 971 states have internal predecessors, (1036), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-08 19:16:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1168 transitions. [2024-11-08 19:16:50,868 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1168 transitions. Word has length 88 [2024-11-08 19:16:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:50,869 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1168 transitions. [2024-11-08 19:16:50,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.4) internal successors, (134), 11 states have internal predecessors, (134), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:16:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1168 transitions. [2024-11-08 19:16:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 19:16:50,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:50,870 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:50,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-08 19:16:51,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:51,075 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:51,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:51,076 INFO L85 PathProgramCache]: Analyzing trace with hash -270536479, now seen corresponding path program 1 times [2024-11-08 19:16:51,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:51,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112148562] [2024-11-08 19:16:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:51,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:16:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:16:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-08 19:16:51,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:51,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112148562] [2024-11-08 19:16:51,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112148562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:51,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443342772] [2024-11-08 19:16:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:51,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:51,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:51,173 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:51,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 19:16:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:51,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:16:51,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 19:16:51,348 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 19:16:51,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443342772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:51,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:51,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-08 19:16:51,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673561711] [2024-11-08 19:16:51,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:51,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:16:51,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:51,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:16:51,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:16:51,466 INFO L87 Difference]: Start difference. First operand 1040 states and 1168 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-08 19:16:51,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:51,989 INFO L93 Difference]: Finished difference Result 1934 states and 2170 transitions. [2024-11-08 19:16:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 19:16:51,989 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 91 [2024-11-08 19:16:51,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:51,995 INFO L225 Difference]: With dead ends: 1934 [2024-11-08 19:16:51,995 INFO L226 Difference]: Without dead ends: 1630 [2024-11-08 19:16:51,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:16:51,998 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 81 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:51,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 211 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-08 19:16:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1243. [2024-11-08 19:16:52,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 1160 states have (on average 1.0672413793103448) internal successors, (1238), 1162 states have internal predecessors, (1238), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-08 19:16:52,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1394 transitions. [2024-11-08 19:16:52,098 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1394 transitions. Word has length 91 [2024-11-08 19:16:52,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:52,099 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 1394 transitions. [2024-11-08 19:16:52,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-08 19:16:52,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1394 transitions. [2024-11-08 19:16:52,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 19:16:52,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:52,100 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:52,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 19:16:52,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:52,304 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:52,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:52,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1979462615, now seen corresponding path program 1 times [2024-11-08 19:16:52,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:52,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987859116] [2024-11-08 19:16:52,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:52,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:16:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:16:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 19:16:52,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:52,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987859116] [2024-11-08 19:16:52,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987859116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:52,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781735503] [2024-11-08 19:16:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:52,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:52,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:52,422 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:52,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 19:16:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:52,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:16:52,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:52,570 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 19:16:52,571 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:52,712 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 19:16:52,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781735503] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:52,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:52,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 19:16:52,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497043422] [2024-11-08 19:16:52,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:52,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 19:16:52,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 19:16:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:52,716 INFO L87 Difference]: Start difference. First operand 1243 states and 1394 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:16:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:52,994 INFO L93 Difference]: Finished difference Result 2010 states and 2258 transitions. [2024-11-08 19:16:52,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:16:52,995 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 91 [2024-11-08 19:16:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:53,001 INFO L225 Difference]: With dead ends: 2010 [2024-11-08 19:16:53,002 INFO L226 Difference]: Without dead ends: 2009 [2024-11-08 19:16:53,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-08 19:16:53,004 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 79 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:53,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 183 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:16:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2024-11-08 19:16:53,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 2001. [2024-11-08 19:16:53,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1870 states have (on average 1.0663101604278076) internal successors, (1994), 1872 states have internal predecessors, (1994), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2024-11-08 19:16:53,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 2246 transitions. [2024-11-08 19:16:53,163 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 2246 transitions. Word has length 91 [2024-11-08 19:16:53,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:53,163 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 2246 transitions. [2024-11-08 19:16:53,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:16:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 2246 transitions. [2024-11-08 19:16:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 19:16:53,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:53,167 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:53,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-08 19:16:53,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:53,372 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:53,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash 698934031, now seen corresponding path program 1 times [2024-11-08 19:16:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:53,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181908292] [2024-11-08 19:16:53,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:53,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:16:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:16:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:16:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:16:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:16:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:16:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:16:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 19:16:53,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:53,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181908292] [2024-11-08 19:16:53,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181908292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:53,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320695070] [2024-11-08 19:16:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:53,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:53,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:53,570 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:53,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 19:16:53,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:16:53,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 19:16:53,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:53,835 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 19:16:53,837 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-08 19:16:54,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320695070] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:54,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:16:54,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-08 19:16:54,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43456959] [2024-11-08 19:16:54,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:54,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:16:54,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:54,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:16:54,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:16:54,012 INFO L87 Difference]: Start difference. First operand 2001 states and 2246 transitions. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:16:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:54,581 INFO L93 Difference]: Finished difference Result 4459 states and 5002 transitions. [2024-11-08 19:16:54,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 19:16:54,581 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 116 [2024-11-08 19:16:54,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:54,594 INFO L225 Difference]: With dead ends: 4459 [2024-11-08 19:16:54,594 INFO L226 Difference]: Without dead ends: 3299 [2024-11-08 19:16:54,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 237 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:16:54,599 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 26 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:54,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 315 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:16:54,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2024-11-08 19:16:54,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2298. [2024-11-08 19:16:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2298 states, 2149 states have (on average 1.0604932526756632) internal successors, (2279), 2151 states have internal predecessors, (2279), 144 states have call successors, (144), 2 states have call predecessors, (144), 2 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2024-11-08 19:16:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2298 states to 2298 states and 2567 transitions. [2024-11-08 19:16:54,821 INFO L78 Accepts]: Start accepts. Automaton has 2298 states and 2567 transitions. Word has length 116 [2024-11-08 19:16:54,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:54,823 INFO L471 AbstractCegarLoop]: Abstraction has 2298 states and 2567 transitions. [2024-11-08 19:16:54,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:16:54,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2298 states and 2567 transitions. [2024-11-08 19:16:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:16:54,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:54,826 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:54,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 19:16:55,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:55,028 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:55,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:55,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1404397086, now seen corresponding path program 2 times [2024-11-08 19:16:55,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:55,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832856849] [2024-11-08 19:16:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:55,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:55,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1883304789] [2024-11-08 19:16:55,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:16:55,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:55,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:55,066 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:55,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 19:16:55,155 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:16:55,155 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:16:55,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:16:55,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-08 19:16:55,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:56,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:56,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832856849] [2024-11-08 19:16:56,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:56,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883304789] [2024-11-08 19:16:56,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883304789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:16:56,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:16:56,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-08 19:16:56,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641387690] [2024-11-08 19:16:56,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:56,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:16:56,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:56,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:16:56,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:16:56,470 INFO L87 Difference]: Start difference. First operand 2298 states and 2567 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:56,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:56,896 INFO L93 Difference]: Finished difference Result 2589 states and 2888 transitions. [2024-11-08 19:16:56,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:16:56,896 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 136 [2024-11-08 19:16:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:16:56,907 INFO L225 Difference]: With dead ends: 2589 [2024-11-08 19:16:56,907 INFO L226 Difference]: Without dead ends: 2588 [2024-11-08 19:16:56,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:16:56,909 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 19 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:16:56,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 235 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:16:56,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2024-11-08 19:16:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2330. [2024-11-08 19:16:57,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2330 states, 2179 states have (on average 1.0596603946764571) internal successors, (2309), 2181 states have internal predecessors, (2309), 146 states have call successors, (146), 2 states have call predecessors, (146), 2 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2024-11-08 19:16:57,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 2601 transitions. [2024-11-08 19:16:57,148 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 2601 transitions. Word has length 136 [2024-11-08 19:16:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:16:57,148 INFO L471 AbstractCegarLoop]: Abstraction has 2330 states and 2601 transitions. [2024-11-08 19:16:57,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 19:16:57,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 2601 transitions. [2024-11-08 19:16:57,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:16:57,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:16:57,152 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:16:57,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-08 19:16:57,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-08 19:16:57,356 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:16:57,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:16:57,357 INFO L85 PathProgramCache]: Analyzing trace with hash -2055664408, now seen corresponding path program 3 times [2024-11-08 19:16:57,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:16:57,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362288724] [2024-11-08 19:16:57,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:16:57,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:16:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:16:57,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142898746] [2024-11-08 19:16:57,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:16:57,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:16:57,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:16:57,399 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:16:57,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 19:16:57,480 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-08 19:16:57,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:16:57,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:16:57,485 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:16:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 19:16:57,772 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:16:58,121 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 19:16:58,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:16:58,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362288724] [2024-11-08 19:16:58,122 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:16:58,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142898746] [2024-11-08 19:16:58,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142898746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:16:58,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:16:58,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-08 19:16:58,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490777879] [2024-11-08 19:16:58,123 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:16:58,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:16:58,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:16:58,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:16:58,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:16:58,125 INFO L87 Difference]: Start difference. First operand 2330 states and 2601 transitions. Second operand has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:16:59,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:16:59,992 INFO L93 Difference]: Finished difference Result 3162 states and 3521 transitions. [2024-11-08 19:16:59,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 19:16:59,993 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 136 [2024-11-08 19:16:59,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:00,003 INFO L225 Difference]: With dead ends: 3162 [2024-11-08 19:17:00,004 INFO L226 Difference]: Without dead ends: 3161 [2024-11-08 19:17:00,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 19:17:00,007 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 303 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:00,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 289 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:17:00,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2024-11-08 19:17:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 2385. [2024-11-08 19:17:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2231 states have (on average 1.0578216046615867) internal successors, (2360), 2233 states have internal predecessors, (2360), 149 states have call successors, (149), 2 states have call predecessors, (149), 2 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-08 19:17:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 2658 transitions. [2024-11-08 19:17:00,249 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 2658 transitions. Word has length 136 [2024-11-08 19:17:00,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:00,249 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 2658 transitions. [2024-11-08 19:17:00,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.0) internal successors, (156), 14 states have internal predecessors, (156), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:17:00,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 2658 transitions. [2024-11-08 19:17:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 19:17:00,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:00,252 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:00,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:00,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 19:17:00,457 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:00,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:00,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1115520698, now seen corresponding path program 3 times [2024-11-08 19:17:00,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:00,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836748002] [2024-11-08 19:17:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:00,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:17:00,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235926023] [2024-11-08 19:17:00,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:17:00,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:00,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:00,496 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:00,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 19:17:00,554 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 19:17:00,554 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:00,555 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 19:17:00,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-08 19:17:00,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:00,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:00,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836748002] [2024-11-08 19:17:00,877 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:17:00,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235926023] [2024-11-08 19:17:00,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235926023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:00,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:17:00,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-08 19:17:00,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228534490] [2024-11-08 19:17:00,877 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:00,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:17:00,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:00,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:17:00,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:17:00,878 INFO L87 Difference]: Start difference. First operand 2385 states and 2658 transitions. Second operand has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 19:17:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:01,127 INFO L93 Difference]: Finished difference Result 3415 states and 3801 transitions. [2024-11-08 19:17:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:17:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-08 19:17:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:01,137 INFO L225 Difference]: With dead ends: 3415 [2024-11-08 19:17:01,137 INFO L226 Difference]: Without dead ends: 2108 [2024-11-08 19:17:01,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-08 19:17:01,140 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:01,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 77 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 19:17:01,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-08 19:17:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 2107. [2024-11-08 19:17:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2107 states, 1970 states have (on average 1.0532994923857868) internal successors, (2075), 1972 states have internal predecessors, (2075), 132 states have call successors, (132), 2 states have call predecessors, (132), 2 states have return successors, (132), 132 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-08 19:17:01,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2339 transitions. [2024-11-08 19:17:01,368 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2339 transitions. Word has length 136 [2024-11-08 19:17:01,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:01,369 INFO L471 AbstractCegarLoop]: Abstraction has 2107 states and 2339 transitions. [2024-11-08 19:17:01,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 19:17:01,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2339 transitions. [2024-11-08 19:17:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 19:17:01,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:01,372 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:01,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:01,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 19:17:01,573 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:01,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 297145517, now seen corresponding path program 4 times [2024-11-08 19:17:01,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:01,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652640025] [2024-11-08 19:17:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:01,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 19:17:01,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:01,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652640025] [2024-11-08 19:17:01,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652640025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:01,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958691966] [2024-11-08 19:17:01,830 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:17:01,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:01,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:01,832 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:01,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-08 19:17:01,911 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:17:01,912 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:01,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 19:17:01,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 19:17:02,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:02,482 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 19:17:02,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958691966] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:02,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:02,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-08 19:17:02,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539389983] [2024-11-08 19:17:02,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:02,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 19:17:02,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:02,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 19:17:02,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:17:02,485 INFO L87 Difference]: Start difference. First operand 2107 states and 2339 transitions. Second operand has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-08 19:17:03,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:03,126 INFO L93 Difference]: Finished difference Result 4286 states and 4766 transitions. [2024-11-08 19:17:03,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:17:03,126 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 156 [2024-11-08 19:17:03,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:03,135 INFO L225 Difference]: With dead ends: 4286 [2024-11-08 19:17:03,135 INFO L226 Difference]: Without dead ends: 3262 [2024-11-08 19:17:03,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 318 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:17:03,138 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 28 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:03,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 494 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:17:03,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2024-11-08 19:17:03,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 2500. [2024-11-08 19:17:03,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 2339 states have (on average 1.0470286447199657) internal successors, (2449), 2341 states have internal predecessors, (2449), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-08 19:17:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 2761 transitions. [2024-11-08 19:17:03,378 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 2761 transitions. Word has length 156 [2024-11-08 19:17:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:03,379 INFO L471 AbstractCegarLoop]: Abstraction has 2500 states and 2761 transitions. [2024-11-08 19:17:03,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-08 19:17:03,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 2761 transitions. [2024-11-08 19:17:03,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-08 19:17:03,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:03,382 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:03,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:03,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-08 19:17:03,583 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:03,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1062757188, now seen corresponding path program 5 times [2024-11-08 19:17:03,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:03,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966381344] [2024-11-08 19:17:03,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:17:03,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204709996] [2024-11-08 19:17:03,657 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 19:17:03,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:03,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:03,673 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:03,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-08 19:17:03,823 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-08 19:17:03,823 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:03,825 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-08 19:17:03,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 12 proven. 433 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-08 19:17:04,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:05,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:05,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966381344] [2024-11-08 19:17:05,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:17:05,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204709996] [2024-11-08 19:17:05,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204709996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:05,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:17:05,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-08 19:17:05,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687021921] [2024-11-08 19:17:05,119 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:05,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 19:17:05,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:05,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 19:17:05,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:17:05,121 INFO L87 Difference]: Start difference. First operand 2500 states and 2761 transitions. Second operand has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 20 states have internal predecessors, (135), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:17:06,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:06,130 INFO L93 Difference]: Finished difference Result 3808 states and 4208 transitions. [2024-11-08 19:17:06,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 19:17:06,131 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 20 states have internal predecessors, (135), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 176 [2024-11-08 19:17:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:06,140 INFO L225 Difference]: With dead ends: 3808 [2024-11-08 19:17:06,140 INFO L226 Difference]: Without dead ends: 2712 [2024-11-08 19:17:06,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:17:06,144 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 23 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:06,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 435 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:17:06,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2712 states. [2024-11-08 19:17:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2712 to 2564. [2024-11-08 19:17:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2564 states, 2399 states have (on average 1.0458524385160484) internal successors, (2509), 2401 states have internal predecessors, (2509), 160 states have call successors, (160), 2 states have call predecessors, (160), 2 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-08 19:17:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2564 states to 2564 states and 2829 transitions. [2024-11-08 19:17:06,386 INFO L78 Accepts]: Start accepts. Automaton has 2564 states and 2829 transitions. Word has length 176 [2024-11-08 19:17:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:06,387 INFO L471 AbstractCegarLoop]: Abstraction has 2564 states and 2829 transitions. [2024-11-08 19:17:06,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.105263157894737) internal successors, (135), 20 states have internal predecessors, (135), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:17:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 2564 states and 2829 transitions. [2024-11-08 19:17:06,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-08 19:17:06,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:06,392 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:06,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-08 19:17:06,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-08 19:17:06,596 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:06,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash 91579452, now seen corresponding path program 2 times [2024-11-08 19:17:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:06,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930811973] [2024-11-08 19:17:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:06,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:06,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:06,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930811973] [2024-11-08 19:17:06,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930811973] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:06,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927609791] [2024-11-08 19:17:06,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:17:06,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:06,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:06,914 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:06,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-08 19:17:06,996 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:17:06,996 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:07,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 19:17:07,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:07,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 536 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:07,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927609791] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:07,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:07,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-08 19:17:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879738742] [2024-11-08 19:17:07,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:07,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:17:07,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:07,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:17:07,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:17:07,517 INFO L87 Difference]: Start difference. First operand 2564 states and 2829 transitions. Second operand has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-08 19:17:08,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:08,034 INFO L93 Difference]: Finished difference Result 4485 states and 5109 transitions. [2024-11-08 19:17:08,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 19:17:08,035 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 188 [2024-11-08 19:17:08,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:08,049 INFO L225 Difference]: With dead ends: 4485 [2024-11-08 19:17:08,049 INFO L226 Difference]: Without dead ends: 4484 [2024-11-08 19:17:08,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:17:08,052 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 20 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:08,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 171 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:17:08,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2024-11-08 19:17:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4484. [2024-11-08 19:17:08,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 4199 states have (on average 1.0547749464158134) internal successors, (4429), 4201 states have internal predecessors, (4429), 280 states have call successors, (280), 2 states have call predecessors, (280), 2 states have return successors, (280), 280 states have call predecessors, (280), 280 states have call successors, (280) [2024-11-08 19:17:08,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 4989 transitions. [2024-11-08 19:17:08,411 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 4989 transitions. Word has length 188 [2024-11-08 19:17:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:08,412 INFO L471 AbstractCegarLoop]: Abstraction has 4484 states and 4989 transitions. [2024-11-08 19:17:08,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.2) internal successors, (284), 21 states have internal predecessors, (284), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-08 19:17:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 4989 transitions. [2024-11-08 19:17:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-08 19:17:08,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:08,416 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:08,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-08 19:17:08,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:08,621 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:08,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1498770938, now seen corresponding path program 2 times [2024-11-08 19:17:08,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:08,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901241420] [2024-11-08 19:17:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:08,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901241420] [2024-11-08 19:17:08,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901241420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:08,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75488459] [2024-11-08 19:17:08,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:17:08,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:08,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:08,926 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:08,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 19:17:09,027 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:17:09,027 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:09,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 19:17:09,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:09,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:09,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75488459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:09,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:09,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-08 19:17:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856417098] [2024-11-08 19:17:09,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:09,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:17:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:09,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:17:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:17:09,611 INFO L87 Difference]: Start difference. First operand 4484 states and 4989 transitions. Second operand has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-08 19:17:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:10,462 INFO L93 Difference]: Finished difference Result 8493 states and 9479 transitions. [2024-11-08 19:17:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 19:17:10,463 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 191 [2024-11-08 19:17:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:10,489 INFO L225 Difference]: With dead ends: 8493 [2024-11-08 19:17:10,489 INFO L226 Difference]: Without dead ends: 8492 [2024-11-08 19:17:10,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:17:10,493 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 284 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:10,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 349 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:17:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8492 states. [2024-11-08 19:17:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8492 to 8474. [2024-11-08 19:17:11,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8474 states, 7939 states have (on average 1.0554225973044464) internal successors, (8379), 7941 states have internal predecessors, (8379), 530 states have call successors, (530), 2 states have call predecessors, (530), 2 states have return successors, (530), 530 states have call predecessors, (530), 530 states have call successors, (530) [2024-11-08 19:17:11,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8474 states to 8474 states and 9439 transitions. [2024-11-08 19:17:11,086 INFO L78 Accepts]: Start accepts. Automaton has 8474 states and 9439 transitions. Word has length 191 [2024-11-08 19:17:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:11,087 INFO L471 AbstractCegarLoop]: Abstraction has 8474 states and 9439 transitions. [2024-11-08 19:17:11,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.5) internal successors, (290), 21 states have internal predecessors, (290), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-08 19:17:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 8474 states and 9439 transitions. [2024-11-08 19:17:11,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-08 19:17:11,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:11,092 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:11,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:11,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:11,296 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:11,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:11,296 INFO L85 PathProgramCache]: Analyzing trace with hash -379957173, now seen corresponding path program 6 times [2024-11-08 19:17:11,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:11,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064086108] [2024-11-08 19:17:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:11,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:11,698 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:11,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:11,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064086108] [2024-11-08 19:17:11,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064086108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:11,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127710468] [2024-11-08 19:17:11,699 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 19:17:11,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:11,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:11,701 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:11,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-08 19:17:11,848 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2024-11-08 19:17:11,849 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:11,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 19:17:11,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:12,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-08 19:17:12,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127710468] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:12,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:12,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-08 19:17:12,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4760763] [2024-11-08 19:17:12,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:12,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 19:17:12,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:12,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 19:17:12,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:17:12,663 INFO L87 Difference]: Start difference. First operand 8474 states and 9439 transitions. Second operand has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-08 19:17:13,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:13,732 INFO L93 Difference]: Finished difference Result 19106 states and 21324 transitions. [2024-11-08 19:17:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:17:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 196 [2024-11-08 19:17:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:13,763 INFO L225 Difference]: With dead ends: 19106 [2024-11-08 19:17:13,763 INFO L226 Difference]: Without dead ends: 13932 [2024-11-08 19:17:13,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 399 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:17:13,775 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 30 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:13,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 373 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:17:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13932 states. [2024-11-08 19:17:14,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13932 to 9628. [2024-11-08 19:17:14,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9628 states, 9021 states have (on average 1.0504378671987584) internal successors, (9476), 9023 states have internal predecessors, (9476), 602 states have call successors, (602), 2 states have call predecessors, (602), 2 states have return successors, (602), 602 states have call predecessors, (602), 602 states have call successors, (602) [2024-11-08 19:17:14,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9628 states to 9628 states and 10680 transitions. [2024-11-08 19:17:14,596 INFO L78 Accepts]: Start accepts. Automaton has 9628 states and 10680 transitions. Word has length 196 [2024-11-08 19:17:14,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:14,597 INFO L471 AbstractCegarLoop]: Abstraction has 9628 states and 10680 transitions. [2024-11-08 19:17:14,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.11111111111111) internal successors, (236), 18 states have internal predecessors, (236), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-08 19:17:14,597 INFO L276 IsEmpty]: Start isEmpty. Operand 9628 states and 10680 transitions. [2024-11-08 19:17:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-08 19:17:14,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:14,603 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:14,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-08 19:17:14,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-08 19:17:14,808 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:14,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1945990635, now seen corresponding path program 7 times [2024-11-08 19:17:14,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:14,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021737079] [2024-11-08 19:17:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 179 proven. 338 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 19:17:15,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:15,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021737079] [2024-11-08 19:17:15,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021737079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:15,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072568698] [2024-11-08 19:17:15,129 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-08 19:17:15,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:15,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:15,131 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:15,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 19:17:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:15,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 19:17:15,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 317 proven. 200 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 19:17:15,677 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 179 proven. 338 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-08 19:17:15,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072568698] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:15,989 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:15,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2024-11-08 19:17:15,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380487367] [2024-11-08 19:17:15,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:15,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 19:17:15,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 19:17:15,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-08 19:17:15,992 INFO L87 Difference]: Start difference. First operand 9628 states and 10680 transitions. Second operand has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-08 19:17:17,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:17,586 INFO L93 Difference]: Finished difference Result 25363 states and 28275 transitions. [2024-11-08 19:17:17,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 19:17:17,587 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 196 [2024-11-08 19:17:17,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:17,637 INFO L225 Difference]: With dead ends: 25363 [2024-11-08 19:17:17,637 INFO L226 Difference]: Without dead ends: 17859 [2024-11-08 19:17:17,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 400 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 19:17:17,651 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 26 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:17,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 384 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:17:17,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17859 states. [2024-11-08 19:17:18,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17859 to 8946. [2024-11-08 19:17:18,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8946 states, 8380 states have (on average 1.0485680190930788) internal successors, (8787), 8382 states have internal predecessors, (8787), 561 states have call successors, (561), 2 states have call predecessors, (561), 2 states have return successors, (561), 561 states have call predecessors, (561), 561 states have call successors, (561) [2024-11-08 19:17:18,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8946 states to 8946 states and 9909 transitions. [2024-11-08 19:17:18,578 INFO L78 Accepts]: Start accepts. Automaton has 8946 states and 9909 transitions. Word has length 196 [2024-11-08 19:17:18,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:18,579 INFO L471 AbstractCegarLoop]: Abstraction has 8946 states and 9909 transitions. [2024-11-08 19:17:18,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.454545454545455) internal successors, (318), 22 states have internal predecessors, (318), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-08 19:17:18,579 INFO L276 IsEmpty]: Start isEmpty. Operand 8946 states and 9909 transitions. [2024-11-08 19:17:18,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-08 19:17:18,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:18,585 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:18,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-08 19:17:18,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-08 19:17:18,791 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:18,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1699208538, now seen corresponding path program 8 times [2024-11-08 19:17:18,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:18,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152389438] [2024-11-08 19:17:18,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:18,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:17:18,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502997133] [2024-11-08 19:17:18,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:17:18,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:18,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:18,874 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:18,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 19:17:18,993 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:17:18,993 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:18,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:17:19,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-08 19:17:19,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:20,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:20,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152389438] [2024-11-08 19:17:20,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:17:20,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502997133] [2024-11-08 19:17:20,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502997133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:20,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:17:20,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-08 19:17:20,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431508803] [2024-11-08 19:17:20,179 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:20,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:17:20,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:20,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:17:20,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:17:20,181 INFO L87 Difference]: Start difference. First operand 8946 states and 9909 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-08 19:17:21,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:21,247 INFO L93 Difference]: Finished difference Result 9557 states and 10586 transitions. [2024-11-08 19:17:21,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:17:21,248 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 216 [2024-11-08 19:17:21,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:21,267 INFO L225 Difference]: With dead ends: 9557 [2024-11-08 19:17:21,267 INFO L226 Difference]: Without dead ends: 9556 [2024-11-08 19:17:21,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:17:21,269 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 19 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:21,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 394 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:17:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9556 states. [2024-11-08 19:17:21,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9556 to 9256. [2024-11-08 19:17:21,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9256 states, 8671 states have (on average 1.048667973705455) internal successors, (9093), 8673 states have internal predecessors, (9093), 580 states have call successors, (580), 2 states have call predecessors, (580), 2 states have return successors, (580), 580 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-08 19:17:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9256 states to 9256 states and 10253 transitions. [2024-11-08 19:17:21,978 INFO L78 Accepts]: Start accepts. Automaton has 9256 states and 10253 transitions. Word has length 216 [2024-11-08 19:17:21,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:21,979 INFO L471 AbstractCegarLoop]: Abstraction has 9256 states and 10253 transitions. [2024-11-08 19:17:21,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 10 states have internal predecessors, (107), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-08 19:17:21,979 INFO L276 IsEmpty]: Start isEmpty. Operand 9256 states and 10253 transitions. [2024-11-08 19:17:21,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-08 19:17:21,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:21,983 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:22,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:22,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-08 19:17:22,187 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:22,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:22,188 INFO L85 PathProgramCache]: Analyzing trace with hash -8153623, now seen corresponding path program 9 times [2024-11-08 19:17:22,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:22,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987106043] [2024-11-08 19:17:22,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:22,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:22,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:22,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:17:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:17:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 203 proven. 638 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-08 19:17:22,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:22,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987106043] [2024-11-08 19:17:22,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987106043] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:22,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331950020] [2024-11-08 19:17:22,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:17:22,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:22,726 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:22,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-08 19:17:22,852 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-08 19:17:22,852 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:22,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:17:22,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:23,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 0 proven. 621 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-08 19:17:23,443 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:24,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331950020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:24,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:17:24,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 22 [2024-11-08 19:17:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226949501] [2024-11-08 19:17:24,262 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:24,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 19:17:24,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:24,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 19:17:24,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=509, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:17:24,264 INFO L87 Difference]: Start difference. First operand 9256 states and 10253 transitions. Second operand has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-08 19:17:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:26,864 INFO L93 Difference]: Finished difference Result 19623 states and 21806 transitions. [2024-11-08 19:17:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-08 19:17:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 236 [2024-11-08 19:17:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:26,897 INFO L225 Difference]: With dead ends: 19623 [2024-11-08 19:17:26,897 INFO L226 Difference]: Without dead ends: 14233 [2024-11-08 19:17:26,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=416, Invalid=2890, Unknown=0, NotChecked=0, Total=3306 [2024-11-08 19:17:26,907 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 366 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 2419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:26,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1055 Invalid, 2419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 19:17:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14233 states. [2024-11-08 19:17:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14233 to 10388. [2024-11-08 19:17:27,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10388 states, 9732 states have (on average 1.0434648581997534) internal successors, (10155), 9734 states have internal predecessors, (10155), 651 states have call successors, (651), 2 states have call predecessors, (651), 2 states have return successors, (651), 651 states have call predecessors, (651), 651 states have call successors, (651) [2024-11-08 19:17:27,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10388 states to 10388 states and 11457 transitions. [2024-11-08 19:17:27,946 INFO L78 Accepts]: Start accepts. Automaton has 10388 states and 11457 transitions. Word has length 236 [2024-11-08 19:17:27,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:27,947 INFO L471 AbstractCegarLoop]: Abstraction has 10388 states and 11457 transitions. [2024-11-08 19:17:27,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 12.545454545454545) internal successors, (276), 22 states have internal predecessors, (276), 18 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-08 19:17:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 10388 states and 11457 transitions. [2024-11-08 19:17:27,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-08 19:17:27,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:27,953 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:27,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:28,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-08 19:17:28,158 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:28,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash -846977032, now seen corresponding path program 10 times [2024-11-08 19:17:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39804011] [2024-11-08 19:17:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:17:28,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345536552] [2024-11-08 19:17:28,222 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:17:28,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:28,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:28,225 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:28,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-08 19:17:28,373 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:17:28,373 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:28,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-08 19:17:28,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 30 proven. 862 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-08 19:17:29,509 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:29,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:29,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39804011] [2024-11-08 19:17:29,911 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:17:29,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345536552] [2024-11-08 19:17:29,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345536552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:29,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:17:29,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-08 19:17:29,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774635841] [2024-11-08 19:17:29,912 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:29,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:17:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:29,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:17:29,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:17:29,914 INFO L87 Difference]: Start difference. First operand 10388 states and 11457 transitions. Second operand has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:17:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:31,624 INFO L93 Difference]: Finished difference Result 10999 states and 12132 transitions. [2024-11-08 19:17:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:17:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) Word has length 256 [2024-11-08 19:17:31,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:31,646 INFO L225 Difference]: With dead ends: 10999 [2024-11-08 19:17:31,647 INFO L226 Difference]: Without dead ends: 10998 [2024-11-08 19:17:31,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-11-08 19:17:31,650 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 36 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:31,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 509 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:17:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10998 states. [2024-11-08 19:17:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10998 to 10698. [2024-11-08 19:17:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10698 states, 10023 states have (on average 1.0435997206425223) internal successors, (10460), 10025 states have internal predecessors, (10460), 670 states have call successors, (670), 2 states have call predecessors, (670), 2 states have return successors, (670), 670 states have call predecessors, (670), 670 states have call successors, (670) [2024-11-08 19:17:32,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10698 states to 10698 states and 11800 transitions. [2024-11-08 19:17:32,398 INFO L78 Accepts]: Start accepts. Automaton has 10698 states and 11800 transitions. Word has length 256 [2024-11-08 19:17:32,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:32,399 INFO L471 AbstractCegarLoop]: Abstraction has 10698 states and 11800 transitions. [2024-11-08 19:17:32,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:17:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 10698 states and 11800 transitions. [2024-11-08 19:17:32,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-08 19:17:32,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:32,404 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:32,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:32,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-08 19:17:32,606 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:32,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash -540524660, now seen corresponding path program 11 times [2024-11-08 19:17:32,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:32,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594360813] [2024-11-08 19:17:32,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:32,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:17:32,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [519471854] [2024-11-08 19:17:32,685 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 19:17:32,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:32,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:32,689 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:32,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 19:17:32,877 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-11-08 19:17:32,877 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:32,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-08 19:17:32,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 45 proven. 976 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2024-11-08 19:17:34,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:35,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:35,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594360813] [2024-11-08 19:17:35,292 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:17:35,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519471854] [2024-11-08 19:17:35,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519471854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:35,292 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:17:35,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-11-08 19:17:35,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345713168] [2024-11-08 19:17:35,293 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:35,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 19:17:35,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:35,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 19:17:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=793, Unknown=0, NotChecked=0, Total=930 [2024-11-08 19:17:35,295 INFO L87 Difference]: Start difference. First operand 10698 states and 11800 transitions. Second operand has 29 states, 28 states have (on average 6.321428571428571) internal successors, (177), 29 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-08 19:17:37,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:37,293 INFO L93 Difference]: Finished difference Result 12682 states and 13942 transitions. [2024-11-08 19:17:37,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 19:17:37,294 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.321428571428571) internal successors, (177), 29 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 256 [2024-11-08 19:17:37,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:37,318 INFO L225 Difference]: With dead ends: 12682 [2024-11-08 19:17:37,318 INFO L226 Difference]: Without dead ends: 11330 [2024-11-08 19:17:37,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=391, Invalid=1865, Unknown=0, NotChecked=0, Total=2256 [2024-11-08 19:17:37,324 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 41 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:37,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 502 Invalid, 1800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 19:17:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11330 states. [2024-11-08 19:17:38,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11330 to 10705. [2024-11-08 19:17:38,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10705 states, 10030 states have (on average 1.043369890329013) internal successors, (10465), 10032 states have internal predecessors, (10465), 670 states have call successors, (670), 2 states have call predecessors, (670), 2 states have return successors, (670), 670 states have call predecessors, (670), 670 states have call successors, (670) [2024-11-08 19:17:38,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10705 states to 10705 states and 11805 transitions. [2024-11-08 19:17:38,224 INFO L78 Accepts]: Start accepts. Automaton has 10705 states and 11805 transitions. Word has length 256 [2024-11-08 19:17:38,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:38,225 INFO L471 AbstractCegarLoop]: Abstraction has 10705 states and 11805 transitions. [2024-11-08 19:17:38,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.321428571428571) internal successors, (177), 29 states have internal predecessors, (177), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-08 19:17:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 10705 states and 11805 transitions. [2024-11-08 19:17:38,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-08 19:17:38,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:38,230 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:38,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:38,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-08 19:17:38,430 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:38,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:38,431 INFO L85 PathProgramCache]: Analyzing trace with hash -48241273, now seen corresponding path program 12 times [2024-11-08 19:17:38,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:38,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138405786] [2024-11-08 19:17:38,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:38,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:39,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:17:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:17:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:17:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:17:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:39,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 287 proven. 912 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-08 19:17:39,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138405786] [2024-11-08 19:17:39,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138405786] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:39,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223567401] [2024-11-08 19:17:39,109 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 19:17:39,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:39,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:39,113 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:39,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-08 19:17:39,441 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-08 19:17:39,441 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:39,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:17:39,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:40,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-08 19:17:40,051 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 355 proven. 844 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-08 19:17:40,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223567401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:40,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:40,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2024-11-08 19:17:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042959242] [2024-11-08 19:17:40,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:40,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 19:17:40,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 19:17:40,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-11-08 19:17:40,519 INFO L87 Difference]: Start difference. First operand 10705 states and 11805 transitions. Second operand has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-08 19:17:42,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:42,385 INFO L93 Difference]: Finished difference Result 21020 states and 23271 transitions. [2024-11-08 19:17:42,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:17:42,386 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) Word has length 276 [2024-11-08 19:17:42,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:42,417 INFO L225 Difference]: With dead ends: 21020 [2024-11-08 19:17:42,417 INFO L226 Difference]: Without dead ends: 15860 [2024-11-08 19:17:42,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 561 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-08 19:17:42,431 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 30 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:42,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 874 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:17:42,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2024-11-08 19:17:43,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 12339. [2024-11-08 19:17:43,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12339 states, 11562 states have (on average 1.0390070921985815) internal successors, (12013), 11564 states have internal predecessors, (12013), 772 states have call successors, (772), 2 states have call predecessors, (772), 2 states have return successors, (772), 772 states have call predecessors, (772), 772 states have call successors, (772) [2024-11-08 19:17:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12339 states to 12339 states and 13557 transitions. [2024-11-08 19:17:43,892 INFO L78 Accepts]: Start accepts. Automaton has 12339 states and 13557 transitions. Word has length 276 [2024-11-08 19:17:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:43,893 INFO L471 AbstractCegarLoop]: Abstraction has 12339 states and 13557 transitions. [2024-11-08 19:17:43,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.583333333333334) internal successors, (326), 24 states have internal predecessors, (326), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-08 19:17:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 12339 states and 13557 transitions. [2024-11-08 19:17:43,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-08 19:17:43,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:43,899 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:43,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:44,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-08 19:17:44,100 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:44,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:44,100 INFO L85 PathProgramCache]: Analyzing trace with hash -548766570, now seen corresponding path program 13 times [2024-11-08 19:17:44,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345683643] [2024-11-08 19:17:44,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:44,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:17:44,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [432080514] [2024-11-08 19:17:44,166 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-08 19:17:44,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:44,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:44,168 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:44,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-08 19:17:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:44,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-08 19:17:44,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1770 backedges. 39 proven. 1402 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2024-11-08 19:17:46,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:46,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:46,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345683643] [2024-11-08 19:17:46,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:17:46,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432080514] [2024-11-08 19:17:46,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432080514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:46,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:17:46,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2024-11-08 19:17:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958602091] [2024-11-08 19:17:46,922 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:46,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 19:17:46,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:46,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 19:17:46,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1240, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 19:17:46,924 INFO L87 Difference]: Start difference. First operand 12339 states and 13557 transitions. Second operand has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-08 19:17:50,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:50,614 INFO L93 Difference]: Finished difference Result 18110 states and 19950 transitions. [2024-11-08 19:17:50,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 19:17:50,615 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) Word has length 296 [2024-11-08 19:17:50,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:50,633 INFO L225 Difference]: With dead ends: 18110 [2024-11-08 19:17:50,634 INFO L226 Difference]: Without dead ends: 12759 [2024-11-08 19:17:50,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=200, Invalid=2350, Unknown=0, NotChecked=0, Total=2550 [2024-11-08 19:17:50,644 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 154 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 6566 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 6586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:50,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 1490 Invalid, 6586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 6566 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 19:17:50,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2024-11-08 19:17:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 12451. [2024-11-08 19:17:51,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12451 states, 11667 states have (on average 1.038656038398903) internal successors, (12118), 11669 states have internal predecessors, (12118), 779 states have call successors, (779), 2 states have call predecessors, (779), 2 states have return successors, (779), 779 states have call predecessors, (779), 779 states have call successors, (779) [2024-11-08 19:17:51,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12451 states to 12451 states and 13676 transitions. [2024-11-08 19:17:51,543 INFO L78 Accepts]: Start accepts. Automaton has 12451 states and 13676 transitions. Word has length 296 [2024-11-08 19:17:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:51,544 INFO L471 AbstractCegarLoop]: Abstraction has 12451 states and 13676 transitions. [2024-11-08 19:17:51,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.818181818181818) internal successors, (225), 34 states have internal predecessors, (225), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-08 19:17:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 12451 states and 13676 transitions. [2024-11-08 19:17:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-08 19:17:51,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:51,547 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:51,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:51,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-08 19:17:51,747 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:51,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2080378838, now seen corresponding path program 14 times [2024-11-08 19:17:51,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:51,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414835773] [2024-11-08 19:17:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:51,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:52,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:52,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:17:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:17:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:17:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:17:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:17:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:52,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 736 proven. 460 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-08 19:17:52,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:52,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414835773] [2024-11-08 19:17:52,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414835773] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:52,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522413709] [2024-11-08 19:17:52,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:17:52,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:52,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:52,073 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:52,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-08 19:17:52,185 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:17:52,185 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:52,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 19:17:52,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:52,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1024 proven. 332 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-08 19:17:52,538 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 694 proven. 502 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-08 19:17:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522413709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:17:52,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:17:52,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-11-08 19:17:52,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053051466] [2024-11-08 19:17:52,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:52,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 19:17:52,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:52,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 19:17:52,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:17:52,863 INFO L87 Difference]: Start difference. First operand 12451 states and 13676 transitions. Second operand has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-08 19:17:53,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:17:53,799 INFO L93 Difference]: Finished difference Result 14220 states and 15599 transitions. [2024-11-08 19:17:53,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 19:17:53,799 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 296 [2024-11-08 19:17:53,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:17:53,823 INFO L225 Difference]: With dead ends: 14220 [2024-11-08 19:17:53,823 INFO L226 Difference]: Without dead ends: 12941 [2024-11-08 19:17:53,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 611 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-08 19:17:53,830 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 19 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:17:53,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 221 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 19:17:53,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12941 states. [2024-11-08 19:17:54,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12941 to 12428. [2024-11-08 19:17:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12428 states, 11645 states have (on average 1.038643194504079) internal successors, (12095), 11647 states have internal predecessors, (12095), 778 states have call successors, (778), 2 states have call predecessors, (778), 2 states have return successors, (778), 778 states have call predecessors, (778), 778 states have call successors, (778) [2024-11-08 19:17:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12428 states to 12428 states and 13651 transitions. [2024-11-08 19:17:54,907 INFO L78 Accepts]: Start accepts. Automaton has 12428 states and 13651 transitions. Word has length 296 [2024-11-08 19:17:54,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:17:54,908 INFO L471 AbstractCegarLoop]: Abstraction has 12428 states and 13651 transitions. [2024-11-08 19:17:54,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-08 19:17:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 12428 states and 13651 transitions. [2024-11-08 19:17:54,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-08 19:17:54,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:17:54,912 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:17:54,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-08 19:17:55,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-08 19:17:55,112 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:17:55,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:17:55,113 INFO L85 PathProgramCache]: Analyzing trace with hash -451068123, now seen corresponding path program 15 times [2024-11-08 19:17:55,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:17:55,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706689899] [2024-11-08 19:17:55,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:17:55,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:17:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:17:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:17:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:17:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:17:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:17:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:17:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:17:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:17:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:17:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:17:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:17:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:17:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:17:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:17:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:17:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:17:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-08 19:17:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:17:55,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 387 proven. 1234 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-08 19:17:55,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:17:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706689899] [2024-11-08 19:17:55,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706689899] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:55,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927580942] [2024-11-08 19:17:55,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:17:55,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:17:55,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:17:55,783 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:17:55,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-08 19:17:55,902 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-08 19:17:55,903 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:17:55,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:17:55,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:17:56,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2045 backedges. 0 proven. 1201 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2024-11-08 19:17:56,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:17:57,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927580942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:17:57,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:17:57,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 28 [2024-11-08 19:17:57,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609078997] [2024-11-08 19:17:57,015 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:17:57,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-08 19:17:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:17:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-08 19:17:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2024-11-08 19:17:57,017 INFO L87 Difference]: Start difference. First operand 12428 states and 13651 transitions. Second operand has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-08 19:18:00,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:00,912 INFO L93 Difference]: Finished difference Result 23132 states and 25508 transitions. [2024-11-08 19:18:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-08 19:18:00,912 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) Word has length 316 [2024-11-08 19:18:00,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:00,943 INFO L225 Difference]: With dead ends: 23132 [2024-11-08 19:18:00,943 INFO L226 Difference]: Without dead ends: 17972 [2024-11-08 19:18:00,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1613 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=664, Invalid=5036, Unknown=0, NotChecked=0, Total=5700 [2024-11-08 19:18:00,959 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 513 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 3978 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 4023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:00,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1758 Invalid, 4023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3978 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 19:18:00,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17972 states. [2024-11-08 19:18:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17972 to 14350. [2024-11-08 19:18:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14350 states, 13447 states have (on average 1.0347289358221166) internal successors, (13914), 13449 states have internal predecessors, (13914), 898 states have call successors, (898), 2 states have call predecessors, (898), 2 states have return successors, (898), 898 states have call predecessors, (898), 898 states have call successors, (898) [2024-11-08 19:18:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14350 states to 14350 states and 15710 transitions. [2024-11-08 19:18:02,119 INFO L78 Accepts]: Start accepts. Automaton has 14350 states and 15710 transitions. Word has length 316 [2024-11-08 19:18:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:02,119 INFO L471 AbstractCegarLoop]: Abstraction has 14350 states and 15710 transitions. [2024-11-08 19:18:02,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 13.071428571428571) internal successors, (366), 28 states have internal predecessors, (366), 24 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 24 states have call predecessors, (25), 24 states have call successors, (25) [2024-11-08 19:18:02,121 INFO L276 IsEmpty]: Start isEmpty. Operand 14350 states and 15710 transitions. [2024-11-08 19:18:02,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-08 19:18:02,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:02,126 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:02,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-08 19:18:02,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-08 19:18:02,327 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:02,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:02,327 INFO L85 PathProgramCache]: Analyzing trace with hash -680003345, now seen corresponding path program 16 times [2024-11-08 19:18:02,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:02,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429563123] [2024-11-08 19:18:02,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:02,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:02,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643404558] [2024-11-08 19:18:02,384 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:18:02,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:02,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:02,386 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:02,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-08 19:18:02,546 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:18:02,546 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:18:02,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 19:18:02,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:06,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2005 backedges. 63 proven. 1530 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-08 19:18:06,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:06,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:06,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429563123] [2024-11-08 19:18:06,694 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:06,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643404558] [2024-11-08 19:18:06,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643404558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:06,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:18:06,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-08 19:18:06,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246003399] [2024-11-08 19:18:06,695 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:06,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-08 19:18:06,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-08 19:18:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=830, Unknown=0, NotChecked=0, Total=930 [2024-11-08 19:18:06,698 INFO L87 Difference]: Start difference. First operand 14350 states and 15710 transitions. Second operand has 28 states, 27 states have (on average 7.222222222222222) internal successors, (195), 28 states have internal predecessors, (195), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-08 19:18:13,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:13,749 INFO L93 Difference]: Finished difference Result 14805 states and 16205 transitions. [2024-11-08 19:18:13,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-08 19:18:13,750 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 7.222222222222222) internal successors, (195), 28 states have internal predecessors, (195), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 316 [2024-11-08 19:18:13,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:13,776 INFO L225 Difference]: With dead ends: 14805 [2024-11-08 19:18:13,776 INFO L226 Difference]: Without dead ends: 14580 [2024-11-08 19:18:13,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=385, Invalid=2371, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 19:18:13,786 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 163 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:13,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 681 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 19:18:13,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14580 states. [2024-11-08 19:18:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14580 to 14350. [2024-11-08 19:18:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14350 states, 13447 states have (on average 1.034580203762921) internal successors, (13912), 13449 states have internal predecessors, (13912), 898 states have call successors, (898), 2 states have call predecessors, (898), 2 states have return successors, (898), 898 states have call predecessors, (898), 898 states have call successors, (898) [2024-11-08 19:18:15,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14350 states to 14350 states and 15708 transitions. [2024-11-08 19:18:15,121 INFO L78 Accepts]: Start accepts. Automaton has 14350 states and 15708 transitions. Word has length 316 [2024-11-08 19:18:15,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:15,121 INFO L471 AbstractCegarLoop]: Abstraction has 14350 states and 15708 transitions. [2024-11-08 19:18:15,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 7.222222222222222) internal successors, (195), 28 states have internal predecessors, (195), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2024-11-08 19:18:15,121 INFO L276 IsEmpty]: Start isEmpty. Operand 14350 states and 15708 transitions. [2024-11-08 19:18:15,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-08 19:18:15,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:15,127 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:15,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:15,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-08 19:18:15,328 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:15,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:15,328 INFO L85 PathProgramCache]: Analyzing trace with hash 160085379, now seen corresponding path program 17 times [2024-11-08 19:18:15,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:15,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756094117] [2024-11-08 19:18:15,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:15,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:15,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [897312172] [2024-11-08 19:18:15,375 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 19:18:15,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:15,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:15,381 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:15,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-08 19:18:15,543 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-08 19:18:15,543 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:18:15,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-08 19:18:15,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 72 proven. 1561 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-08 19:18:18,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:18,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756094117] [2024-11-08 19:18:18,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:18,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897312172] [2024-11-08 19:18:18,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897312172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:18,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:18:18,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2024-11-08 19:18:18,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014067596] [2024-11-08 19:18:18,525 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:18,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-08 19:18:18,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:18,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-08 19:18:18,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1331, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 19:18:18,527 INFO L87 Difference]: Start difference. First operand 14350 states and 15708 transitions. Second operand has 38 states, 37 states have (on average 6.0) internal successors, (222), 38 states have internal predecessors, (222), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-08 19:18:21,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:21,197 INFO L93 Difference]: Finished difference Result 14935 states and 16328 transitions. [2024-11-08 19:18:21,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-08 19:18:21,198 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.0) internal successors, (222), 38 states have internal predecessors, (222), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) Word has length 316 [2024-11-08 19:18:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:21,217 INFO L225 Difference]: With dead ends: 14935 [2024-11-08 19:18:21,217 INFO L226 Difference]: Without dead ends: 14934 [2024-11-08 19:18:21,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=732, Invalid=3690, Unknown=0, NotChecked=0, Total=4422 [2024-11-08 19:18:21,223 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 92 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 1623 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:21,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 415 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1623 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 19:18:21,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14934 states. [2024-11-08 19:18:22,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14934 to 14350. [2024-11-08 19:18:22,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14350 states, 13447 states have (on average 1.0345058377333234) internal successors, (13911), 13449 states have internal predecessors, (13911), 898 states have call successors, (898), 2 states have call predecessors, (898), 2 states have return successors, (898), 898 states have call predecessors, (898), 898 states have call successors, (898) [2024-11-08 19:18:22,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14350 states to 14350 states and 15707 transitions. [2024-11-08 19:18:22,170 INFO L78 Accepts]: Start accepts. Automaton has 14350 states and 15707 transitions. Word has length 316 [2024-11-08 19:18:22,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:22,170 INFO L471 AbstractCegarLoop]: Abstraction has 14350 states and 15707 transitions. [2024-11-08 19:18:22,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.0) internal successors, (222), 38 states have internal predecessors, (222), 15 states have call successors, (16), 1 states have call predecessors, (16), 2 states have return successors, (16), 14 states have call predecessors, (16), 15 states have call successors, (16) [2024-11-08 19:18:22,171 INFO L276 IsEmpty]: Start isEmpty. Operand 14350 states and 15707 transitions. [2024-11-08 19:18:22,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-08 19:18:22,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:22,175 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:22,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:22,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:22,376 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:22,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash -628565196, now seen corresponding path program 18 times [2024-11-08 19:18:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:22,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647834668] [2024-11-08 19:18:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:22,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156945908] [2024-11-08 19:18:22,422 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 19:18:22,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:22,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:22,427 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:22,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-08 19:18:22,809 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-11-08 19:18:22,809 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:18:22,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:18:22,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2340 backedges. 0 proven. 1436 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2024-11-08 19:18:23,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:24,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647834668] [2024-11-08 19:18:24,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:24,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156945908] [2024-11-08 19:18:24,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156945908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:24,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:18:24,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-08 19:18:24,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806491378] [2024-11-08 19:18:24,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:24,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:18:24,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:24,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:18:24,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:18:24,156 INFO L87 Difference]: Start difference. First operand 14350 states and 15707 transitions. Second operand has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 13 states have internal predecessors, (152), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:18:25,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:25,558 INFO L93 Difference]: Finished difference Result 14961 states and 16378 transitions. [2024-11-08 19:18:25,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:18:25,559 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 13 states have internal predecessors, (152), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 336 [2024-11-08 19:18:25,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:25,578 INFO L225 Difference]: With dead ends: 14961 [2024-11-08 19:18:25,578 INFO L226 Difference]: Without dead ends: 14960 [2024-11-08 19:18:25,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:18:25,584 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 19 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:25,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 643 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:18:25,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14960 states. [2024-11-08 19:18:26,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14960 to 14462. [2024-11-08 19:18:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14462 states, 13552 states have (on average 1.0342384887839433) internal successors, (14016), 13554 states have internal predecessors, (14016), 905 states have call successors, (905), 2 states have call predecessors, (905), 2 states have return successors, (905), 905 states have call predecessors, (905), 905 states have call successors, (905) [2024-11-08 19:18:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14462 states to 14462 states and 15826 transitions. [2024-11-08 19:18:26,695 INFO L78 Accepts]: Start accepts. Automaton has 14462 states and 15826 transitions. Word has length 336 [2024-11-08 19:18:26,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:26,695 INFO L471 AbstractCegarLoop]: Abstraction has 14462 states and 15826 transitions. [2024-11-08 19:18:26,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.666666666666666) internal successors, (152), 13 states have internal predecessors, (152), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:18:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 14462 states and 15826 transitions. [2024-11-08 19:18:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-08 19:18:26,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:26,698 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:26,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:26,899 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:26,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:26,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1548202296, now seen corresponding path program 19 times [2024-11-08 19:18:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951475208] [2024-11-08 19:18:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:26,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417923593] [2024-11-08 19:18:26,950 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-08 19:18:26,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:26,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:26,954 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:26,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-08 19:18:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:27,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 87 conjuncts are in the unsatisfiable core [2024-11-08 19:18:27,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2260 backedges. 90 proven. 1803 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-11-08 19:18:29,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:30,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:30,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951475208] [2024-11-08 19:18:30,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:30,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417923593] [2024-11-08 19:18:30,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417923593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:30,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:18:30,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2024-11-08 19:18:30,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223301109] [2024-11-08 19:18:30,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:30,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-08 19:18:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:30,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-08 19:18:30,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1688, Unknown=0, NotChecked=0, Total=1806 [2024-11-08 19:18:30,147 INFO L87 Difference]: Start difference. First operand 14462 states and 15826 transitions. Second operand has 40 states, 39 states have (on average 6.538461538461538) internal successors, (255), 40 states have internal predecessors, (255), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-08 19:18:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:35,102 INFO L93 Difference]: Finished difference Result 14949 states and 16341 transitions. [2024-11-08 19:18:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-08 19:18:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.538461538461538) internal successors, (255), 40 states have internal predecessors, (255), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 336 [2024-11-08 19:18:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:35,121 INFO L225 Difference]: With dead ends: 14949 [2024-11-08 19:18:35,121 INFO L226 Difference]: Without dead ends: 14704 [2024-11-08 19:18:35,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=292, Invalid=4130, Unknown=0, NotChecked=0, Total=4422 [2024-11-08 19:18:35,129 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 146 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 8439 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 8456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 8439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:35,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 1639 Invalid, 8456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 8439 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-08 19:18:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14704 states. [2024-11-08 19:18:35,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14704 to 14462. [2024-11-08 19:18:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14462 states, 13552 states have (on average 1.0340171192443919) internal successors, (14013), 13554 states have internal predecessors, (14013), 905 states have call successors, (905), 2 states have call predecessors, (905), 2 states have return successors, (905), 905 states have call predecessors, (905), 905 states have call successors, (905) [2024-11-08 19:18:35,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14462 states to 14462 states and 15823 transitions. [2024-11-08 19:18:35,996 INFO L78 Accepts]: Start accepts. Automaton has 14462 states and 15823 transitions. Word has length 336 [2024-11-08 19:18:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:35,996 INFO L471 AbstractCegarLoop]: Abstraction has 14462 states and 15823 transitions. [2024-11-08 19:18:35,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.538461538461538) internal successors, (255), 40 states have internal predecessors, (255), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-08 19:18:35,996 INFO L276 IsEmpty]: Start isEmpty. Operand 14462 states and 15823 transitions. [2024-11-08 19:18:35,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-08 19:18:35,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:36,000 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:36,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-08 19:18:36,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:36,200 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:36,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash 34289136, now seen corresponding path program 20 times [2024-11-08 19:18:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:36,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170987689] [2024-11-08 19:18:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:36,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574119263] [2024-11-08 19:18:36,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:18:36,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:36,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:36,247 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:36,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-08 19:18:36,387 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:18:36,387 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:18:36,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:18:36,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:37,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2196 backedges. 0 proven. 1628 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2024-11-08 19:18:37,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:46,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:46,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170987689] [2024-11-08 19:18:46,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:18:46,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574119263] [2024-11-08 19:18:46,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574119263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:46,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:18:46,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-08 19:18:46,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119477812] [2024-11-08 19:18:46,646 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:46,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 19:18:46,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:46,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 19:18:46,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=375, Unknown=2, NotChecked=0, Total=506 [2024-11-08 19:18:46,647 INFO L87 Difference]: Start difference. First operand 14462 states and 15823 transitions. Second operand has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:18:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:48,544 INFO L93 Difference]: Finished difference Result 16639 states and 18135 transitions. [2024-11-08 19:18:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 19:18:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 336 [2024-11-08 19:18:48,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:48,565 INFO L225 Difference]: With dead ends: 16639 [2024-11-08 19:18:48,565 INFO L226 Difference]: Without dead ends: 16638 [2024-11-08 19:18:48,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 627 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=129, Invalid=375, Unknown=2, NotChecked=0, Total=506 [2024-11-08 19:18:48,569 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 25 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:48,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1129 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 19:18:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2024-11-08 19:18:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 14462. [2024-11-08 19:18:49,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14462 states, 13552 states have (on average 1.0339433293978748) internal successors, (14012), 13554 states have internal predecessors, (14012), 905 states have call successors, (905), 2 states have call predecessors, (905), 2 states have return successors, (905), 905 states have call predecessors, (905), 905 states have call successors, (905) [2024-11-08 19:18:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14462 states to 14462 states and 15822 transitions. [2024-11-08 19:18:49,498 INFO L78 Accepts]: Start accepts. Automaton has 14462 states and 15822 transitions. Word has length 336 [2024-11-08 19:18:49,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:49,498 INFO L471 AbstractCegarLoop]: Abstraction has 14462 states and 15822 transitions. [2024-11-08 19:18:49,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 15.166666666666666) internal successors, (182), 13 states have internal predecessors, (182), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-08 19:18:49,499 INFO L276 IsEmpty]: Start isEmpty. Operand 14462 states and 15822 transitions. [2024-11-08 19:18:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-08 19:18:49,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:49,504 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:49,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-08 19:18:49,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:49,708 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:49,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash 342467267, now seen corresponding path program 21 times [2024-11-08 19:18:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:49,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157123531] [2024-11-08 19:18:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:18:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:18:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:18:50,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:18:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:18:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:18:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:18:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:18:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:18:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:18:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:18:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:18:50,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:18:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:18:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:18:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:18:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-08 19:18:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-08 19:18:50,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-08 19:18:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:18:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 503 proven. 1604 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-08 19:18:50,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:18:50,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157123531] [2024-11-08 19:18:50,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157123531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:50,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179717843] [2024-11-08 19:18:50,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:18:50,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:50,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:50,433 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:50,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-08 19:18:50,622 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-08 19:18:50,622 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:18:50,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:18:50,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 0 proven. 1563 refuted. 0 times theorem prover too weak. 1092 trivial. 0 not checked. [2024-11-08 19:18:51,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:18:52,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179717843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:18:52,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 19:18:52,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12] total 31 [2024-11-08 19:18:52,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569121803] [2024-11-08 19:18:52,188 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 19:18:52,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 19:18:52,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:18:52,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 19:18:52,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=956, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 19:18:52,190 INFO L87 Difference]: Start difference. First operand 14462 states and 15822 transitions. Second operand has 31 states, 31 states have (on average 13.258064516129032) internal successors, (411), 31 states have internal predecessors, (411), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-08 19:18:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:18:57,290 INFO L93 Difference]: Finished difference Result 25380 states and 27883 transitions. [2024-11-08 19:18:57,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2024-11-08 19:18:57,290 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 13.258064516129032) internal successors, (411), 31 states have internal predecessors, (411), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) Word has length 356 [2024-11-08 19:18:57,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:18:57,325 INFO L225 Difference]: With dead ends: 25380 [2024-11-08 19:18:57,325 INFO L226 Difference]: Without dead ends: 20038 [2024-11-08 19:18:57,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2056 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=809, Invalid=6331, Unknown=0, NotChecked=0, Total=7140 [2024-11-08 19:18:57,339 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 485 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 4682 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 4682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 19:18:57,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 2006 Invalid, 4725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 4682 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 19:18:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20038 states. [2024-11-08 19:18:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20038 to 16672. [2024-11-08 19:18:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16672 states, 15624 states have (on average 1.0305299539170507) internal successors, (16101), 15626 states have internal predecessors, (16101), 1043 states have call successors, (1043), 2 states have call predecessors, (1043), 2 states have return successors, (1043), 1043 states have call predecessors, (1043), 1043 states have call successors, (1043) [2024-11-08 19:18:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16672 states to 16672 states and 18187 transitions. [2024-11-08 19:18:58,391 INFO L78 Accepts]: Start accepts. Automaton has 16672 states and 18187 transitions. Word has length 356 [2024-11-08 19:18:58,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:18:58,391 INFO L471 AbstractCegarLoop]: Abstraction has 16672 states and 18187 transitions. [2024-11-08 19:18:58,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 13.258064516129032) internal successors, (411), 31 states have internal predecessors, (411), 27 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 27 states have call predecessors, (28), 27 states have call successors, (28) [2024-11-08 19:18:58,391 INFO L276 IsEmpty]: Start isEmpty. Operand 16672 states and 18187 transitions. [2024-11-08 19:18:58,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-08 19:18:58,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:18:58,398 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:18:58,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-08 19:18:58,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:58,598 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:18:58,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:18:58,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1496138706, now seen corresponding path program 22 times [2024-11-08 19:18:58,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:18:58,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371264831] [2024-11-08 19:18:58,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:18:58,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:18:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:18:58,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277300283] [2024-11-08 19:18:58,641 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:18:58,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:18:58,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:18:58,644 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:18:58,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-08 19:18:58,803 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:18:58,803 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:18:58,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 19:18:58,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:18:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2990 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 1160 trivial. 0 not checked. [2024-11-08 19:18:59,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:00,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371264831] [2024-11-08 19:19:00,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:19:00,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277300283] [2024-11-08 19:19:00,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277300283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:00,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-08 19:19:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264680166] [2024-11-08 19:19:00,201 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:00,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:19:00,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:00,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:19:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:00,203 INFO L87 Difference]: Start difference. First operand 16672 states and 18187 transitions. Second operand has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 14 states have internal predecessors, (167), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-08 19:19:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:02,054 INFO L93 Difference]: Finished difference Result 17283 states and 18856 transitions. [2024-11-08 19:19:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:19:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 14 states have internal predecessors, (167), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 376 [2024-11-08 19:19:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:02,081 INFO L225 Difference]: With dead ends: 17283 [2024-11-08 19:19:02,082 INFO L226 Difference]: Without dead ends: 17282 [2024-11-08 19:19:02,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:02,090 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 19 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:02,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 756 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1537 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:19:02,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17282 states. [2024-11-08 19:19:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17282 to 16800. [2024-11-08 19:19:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16800 states, 15744 states have (on average 1.030297256097561) internal successors, (16221), 15746 states have internal predecessors, (16221), 1051 states have call successors, (1051), 2 states have call predecessors, (1051), 2 states have return successors, (1051), 1051 states have call predecessors, (1051), 1051 states have call successors, (1051) [2024-11-08 19:19:03,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16800 states to 16800 states and 18323 transitions. [2024-11-08 19:19:03,331 INFO L78 Accepts]: Start accepts. Automaton has 16800 states and 18323 transitions. Word has length 376 [2024-11-08 19:19:03,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:03,331 INFO L471 AbstractCegarLoop]: Abstraction has 16800 states and 18323 transitions. [2024-11-08 19:19:03,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.846153846153847) internal successors, (167), 14 states have internal predecessors, (167), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-08 19:19:03,331 INFO L276 IsEmpty]: Start isEmpty. Operand 16800 states and 18323 transitions. [2024-11-08 19:19:03,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-08 19:19:03,339 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:03,340 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:03,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:03,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-08 19:19:03,540 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:19:03,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2019642212, now seen corresponding path program 23 times [2024-11-08 19:19:03,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:19:03,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63672479] [2024-11-08 19:19:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:03,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:19:03,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:19:03,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2035480426] [2024-11-08 19:19:03,590 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 19:19:03,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:03,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:03,592 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:03,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-08 19:19:03,844 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-08 19:19:03,844 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:19:03,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 19:19:03,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2938 backedges. 0 proven. 1882 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2024-11-08 19:19:04,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:06,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:06,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63672479] [2024-11-08 19:19:06,021 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:19:06,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035480426] [2024-11-08 19:19:06,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035480426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:06,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:06,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-08 19:19:06,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268346445] [2024-11-08 19:19:06,022 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:06,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:19:06,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:06,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:19:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:06,024 INFO L87 Difference]: Start difference. First operand 16800 states and 18323 transitions. Second operand has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:19:07,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:07,722 INFO L93 Difference]: Finished difference Result 18136 states and 19767 transitions. [2024-11-08 19:19:07,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:19:07,723 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 376 [2024-11-08 19:19:07,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:07,750 INFO L225 Difference]: With dead ends: 18136 [2024-11-08 19:19:07,750 INFO L226 Difference]: Without dead ends: 18135 [2024-11-08 19:19:07,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:07,756 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 20 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:07,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 322 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:07,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18135 states. [2024-11-08 19:19:08,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18135 to 16996. [2024-11-08 19:19:08,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16996 states, 15929 states have (on average 1.03057316843493) internal successors, (16416), 15931 states have internal predecessors, (16416), 1062 states have call successors, (1062), 2 states have call predecessors, (1062), 2 states have return successors, (1062), 1062 states have call predecessors, (1062), 1062 states have call successors, (1062) [2024-11-08 19:19:08,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16996 states to 16996 states and 18540 transitions. [2024-11-08 19:19:08,976 INFO L78 Accepts]: Start accepts. Automaton has 16996 states and 18540 transitions. Word has length 376 [2024-11-08 19:19:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:08,976 INFO L471 AbstractCegarLoop]: Abstraction has 16996 states and 18540 transitions. [2024-11-08 19:19:08,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-08 19:19:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 16996 states and 18540 transitions. [2024-11-08 19:19:08,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-08 19:19:08,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:08,981 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:08,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:09,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-08 19:19:09,182 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:19:09,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash -31095046, now seen corresponding path program 24 times [2024-11-08 19:19:09,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:19:09,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299160222] [2024-11-08 19:19:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:19:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:19:09,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231017895] [2024-11-08 19:19:09,236 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 19:19:09,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:09,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:09,240 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:09,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-08 19:19:09,351 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2024-11-08 19:19:09,351 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:19:09,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 19:19:09,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2830 backedges. 163 proven. 669 refuted. 0 times theorem prover too weak. 1998 trivial. 0 not checked. [2024-11-08 19:19:09,904 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:10,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:10,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299160222] [2024-11-08 19:19:10,341 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:19:10,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231017895] [2024-11-08 19:19:10,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231017895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:10,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:10,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-08 19:19:10,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209616496] [2024-11-08 19:19:10,342 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:10,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 19:19:10,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:10,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 19:19:10,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-08 19:19:10,343 INFO L87 Difference]: Start difference. First operand 16996 states and 18540 transitions. Second operand has 9 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-08 19:19:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:11,617 INFO L93 Difference]: Finished difference Result 17258 states and 18815 transitions. [2024-11-08 19:19:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:19:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 376 [2024-11-08 19:19:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:11,634 INFO L225 Difference]: With dead ends: 17258 [2024-11-08 19:19:11,634 INFO L226 Difference]: Without dead ends: 16130 [2024-11-08 19:19:11,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:19:11,637 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 58 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:11,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 312 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16130 states. [2024-11-08 19:19:12,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16130 to 16130. [2024-11-08 19:19:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16130 states, 15117 states have (on average 1.0300985645299994) internal successors, (15572), 15119 states have internal predecessors, (15572), 1008 states have call successors, (1008), 2 states have call predecessors, (1008), 2 states have return successors, (1008), 1008 states have call predecessors, (1008), 1008 states have call successors, (1008) [2024-11-08 19:19:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16130 states to 16130 states and 17588 transitions. [2024-11-08 19:19:12,931 INFO L78 Accepts]: Start accepts. Automaton has 16130 states and 17588 transitions. Word has length 376 [2024-11-08 19:19:12,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:12,931 INFO L471 AbstractCegarLoop]: Abstraction has 16130 states and 17588 transitions. [2024-11-08 19:19:12,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.5) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-08 19:19:12,931 INFO L276 IsEmpty]: Start isEmpty. Operand 16130 states and 17588 transitions. [2024-11-08 19:19:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2024-11-08 19:19:12,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:12,935 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:12,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-08 19:19:13,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-08 19:19:13,136 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:19:13,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:13,136 INFO L85 PathProgramCache]: Analyzing trace with hash 2020071768, now seen corresponding path program 25 times [2024-11-08 19:19:13,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:19:13,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092159849] [2024-11-08 19:19:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:13,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:19:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:19:13,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5602414] [2024-11-08 19:19:13,181 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-08 19:19:13,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:13,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:13,183 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:13,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-08 19:19:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:13,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 19:19:13,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2794 backedges. 0 proven. 2082 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2024-11-08 19:19:14,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:15,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:15,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092159849] [2024-11-08 19:19:15,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:19:15,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5602414] [2024-11-08 19:19:15,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5602414] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:15,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:19:15,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-08 19:19:15,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448354125] [2024-11-08 19:19:15,016 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:15,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 19:19:15,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:15,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 19:19:15,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:15,017 INFO L87 Difference]: Start difference. First operand 16130 states and 17588 transitions. Second operand has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-08 19:19:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:17,107 INFO L93 Difference]: Finished difference Result 18579 states and 20189 transitions. [2024-11-08 19:19:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 19:19:17,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 376 [2024-11-08 19:19:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:17,132 INFO L225 Difference]: With dead ends: 18579 [2024-11-08 19:19:17,133 INFO L226 Difference]: Without dead ends: 18578 [2024-11-08 19:19:17,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-08 19:19:17,138 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 31 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:17,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 288 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 19:19:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18578 states. [2024-11-08 19:19:18,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18578 to 16130. [2024-11-08 19:19:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16130 states, 15117 states have (on average 1.0300324138387247) internal successors, (15571), 15119 states have internal predecessors, (15571), 1008 states have call successors, (1008), 2 states have call predecessors, (1008), 2 states have return successors, (1008), 1008 states have call predecessors, (1008), 1008 states have call successors, (1008) [2024-11-08 19:19:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16130 states to 16130 states and 17587 transitions. [2024-11-08 19:19:18,368 INFO L78 Accepts]: Start accepts. Automaton has 16130 states and 17587 transitions. Word has length 376 [2024-11-08 19:19:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:18,369 INFO L471 AbstractCegarLoop]: Abstraction has 16130 states and 17587 transitions. [2024-11-08 19:19:18,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.538461538461538) internal successors, (202), 14 states have internal predecessors, (202), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-08 19:19:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 16130 states and 17587 transitions. [2024-11-08 19:19:18,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-11-08 19:19:18,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:18,374 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:18,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2024-11-08 19:19:18,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:18,578 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:19:18,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:18,578 INFO L85 PathProgramCache]: Analyzing trace with hash 610830162, now seen corresponding path program 3 times [2024-11-08 19:19:18,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:19:18,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868099051] [2024-11-08 19:19:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:18,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:19:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:19:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:19:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:19:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:19:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:19:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:19:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:19:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:19:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:19:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:19:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:19:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:19:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:19:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:19:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:19:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:19:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-08 19:19:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-08 19:19:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-08 19:19:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-08 19:19:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-08 19:19:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:19,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 0 proven. 2646 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:19,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:19,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868099051] [2024-11-08 19:19:19,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868099051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:19,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746144277] [2024-11-08 19:19:19,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:19:19,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:19,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:19,405 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:19,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-08 19:19:19,576 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-08 19:19:19,577 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:19:19,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:19:19,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 0 proven. 2646 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:20,021 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:21,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3334 backedges. 0 proven. 2646 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:21,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746144277] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:21,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:19:21,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-08 19:19:21,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150713107] [2024-11-08 19:19:21,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:21,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-08 19:19:21,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:21,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-08 19:19:21,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:19:21,055 INFO L87 Difference]: Start difference. First operand 16130 states and 17587 transitions. Second operand has 41 states, 40 states have (on average 14.6) internal successors, (584), 41 states have internal predecessors, (584), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-08 19:19:23,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:23,682 INFO L93 Difference]: Finished difference Result 23171 states and 25927 transitions. [2024-11-08 19:19:23,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 19:19:23,683 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 14.6) internal successors, (584), 41 states have internal predecessors, (584), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 388 [2024-11-08 19:19:23,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:23,731 INFO L225 Difference]: With dead ends: 23171 [2024-11-08 19:19:23,731 INFO L226 Difference]: Without dead ends: 23170 [2024-11-08 19:19:23,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:19:23,742 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 17 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:23,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 319 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:19:23,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23170 states. [2024-11-08 19:19:25,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23170 to 23170. [2024-11-08 19:19:25,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23170 states, 21717 states have (on average 1.0402449693788276) internal successors, (22591), 21719 states have internal predecessors, (22591), 1448 states have call successors, (1448), 2 states have call predecessors, (1448), 2 states have return successors, (1448), 1448 states have call predecessors, (1448), 1448 states have call successors, (1448) [2024-11-08 19:19:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23170 states to 23170 states and 25487 transitions. [2024-11-08 19:19:25,944 INFO L78 Accepts]: Start accepts. Automaton has 23170 states and 25487 transitions. Word has length 388 [2024-11-08 19:19:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:25,945 INFO L471 AbstractCegarLoop]: Abstraction has 23170 states and 25487 transitions. [2024-11-08 19:19:25,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 14.6) internal successors, (584), 41 states have internal predecessors, (584), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-08 19:19:25,945 INFO L276 IsEmpty]: Start isEmpty. Operand 23170 states and 25487 transitions. [2024-11-08 19:19:25,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-08 19:19:25,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:25,951 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:25,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:26,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:26,152 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:19:26,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:26,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1783601600, now seen corresponding path program 3 times [2024-11-08 19:19:26,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:19:26,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390767548] [2024-11-08 19:19:26,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:26,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:19:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:19:27,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:19:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:19:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:19:27,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:19:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:19:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:19:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:19:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:19:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:19:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:19:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:19:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:19:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:19:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:19:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:19:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-08 19:19:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-08 19:19:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-08 19:19:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-08 19:19:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-08 19:19:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:27,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:27,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390767548] [2024-11-08 19:19:27,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390767548] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374318714] [2024-11-08 19:19:27,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:19:27,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:27,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:27,073 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:27,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-08 19:19:27,287 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-08 19:19:27,287 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:19:27,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 19:19:27,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:27,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3388 backedges. 0 proven. 2700 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:29,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374318714] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:29,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:19:29,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-08 19:19:29,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052658248] [2024-11-08 19:19:29,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:29,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-08 19:19:29,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-08 19:19:29,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:19:29,183 INFO L87 Difference]: Start difference. First operand 23170 states and 25487 transitions. Second operand has 41 states, 40 states have (on average 14.75) internal successors, (590), 41 states have internal predecessors, (590), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-08 19:19:42,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:42,355 INFO L93 Difference]: Finished difference Result 68096 states and 74260 transitions. [2024-11-08 19:19:42,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 19:19:42,356 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 14.75) internal successors, (590), 41 states have internal predecessors, (590), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 391 [2024-11-08 19:19:42,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:42,452 INFO L225 Difference]: With dead ends: 68096 [2024-11-08 19:19:42,453 INFO L226 Difference]: Without dead ends: 68095 [2024-11-08 19:19:42,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 803 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 19:19:42,463 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 614 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:42,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 609 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 19:19:42,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68095 states. [2024-11-08 19:19:45,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68095 to 46190. [2024-11-08 19:19:45,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46190 states, 43297 states have (on average 1.040510889899993) internal successors, (45051), 43299 states have internal predecessors, (45051), 2888 states have call successors, (2888), 2 states have call predecessors, (2888), 2 states have return successors, (2888), 2888 states have call predecessors, (2888), 2888 states have call successors, (2888) [2024-11-08 19:19:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46190 states to 46190 states and 50827 transitions. [2024-11-08 19:19:46,061 INFO L78 Accepts]: Start accepts. Automaton has 46190 states and 50827 transitions. Word has length 391 [2024-11-08 19:19:46,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:19:46,062 INFO L471 AbstractCegarLoop]: Abstraction has 46190 states and 50827 transitions. [2024-11-08 19:19:46,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 14.75) internal successors, (590), 41 states have internal predecessors, (590), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-08 19:19:46,062 INFO L276 IsEmpty]: Start isEmpty. Operand 46190 states and 50827 transitions. [2024-11-08 19:19:46,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2024-11-08 19:19:46,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:19:46,067 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:19:46,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-08 19:19:46,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:46,268 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:19:46,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:19:46,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1106448481, now seen corresponding path program 26 times [2024-11-08 19:19:46,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:19:46,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678479931] [2024-11-08 19:19:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:19:46,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:19:46,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:19:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:19:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:19:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:19:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:19:47,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:19:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:19:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:19:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:19:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:19:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:19:47,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:19:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:19:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:19:47,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:19:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:19:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-08 19:19:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-08 19:19:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-08 19:19:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-08 19:19:47,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-08 19:19:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:19:47,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 635 proven. 2022 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:47,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:19:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678479931] [2024-11-08 19:19:47,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678479931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:19:47,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426911185] [2024-11-08 19:19:47,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:19:47,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:19:47,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:19:47,107 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:19:47,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-08 19:19:47,251 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:19:47,252 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:19:47,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 19:19:47,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:19:48,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 745 proven. 1912 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:48,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:19:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3345 backedges. 745 proven. 1912 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-08 19:19:48,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426911185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:19:48,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:19:48,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 33 [2024-11-08 19:19:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197961952] [2024-11-08 19:19:48,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:19:48,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-08 19:19:48,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:19:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-08 19:19:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 19:19:48,854 INFO L87 Difference]: Start difference. First operand 46190 states and 50827 transitions. Second operand has 33 states, 33 states have (on average 13.969696969696969) internal successors, (461), 33 states have internal predecessors, (461), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-08 19:19:55,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:19:55,482 INFO L93 Difference]: Finished difference Result 92312 states and 102198 transitions. [2024-11-08 19:19:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 19:19:55,483 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 13.969696969696969) internal successors, (461), 33 states have internal predecessors, (461), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) Word has length 396 [2024-11-08 19:19:55,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:19:55,591 INFO L225 Difference]: With dead ends: 92312 [2024-11-08 19:19:55,591 INFO L226 Difference]: Without dead ends: 69252 [2024-11-08 19:19:55,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 804 SyntacticMatches, 19 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=409, Invalid=1313, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 19:19:55,611 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 32 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 19:19:55,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1167 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 19:19:55,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69252 states. [2024-11-08 19:19:59,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69252 to 51527. [2024-11-08 19:19:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51527 states, 48301 states have (on average 1.037059274135111) internal successors, (50091), 48303 states have internal predecessors, (50091), 3221 states have call successors, (3221), 2 states have call predecessors, (3221), 2 states have return successors, (3221), 3221 states have call predecessors, (3221), 3221 states have call successors, (3221) [2024-11-08 19:20:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51527 states to 51527 states and 56533 transitions. [2024-11-08 19:20:00,022 INFO L78 Accepts]: Start accepts. Automaton has 51527 states and 56533 transitions. Word has length 396 [2024-11-08 19:20:00,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:00,023 INFO L471 AbstractCegarLoop]: Abstraction has 51527 states and 56533 transitions. [2024-11-08 19:20:00,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 13.969696969696969) internal successors, (461), 33 states have internal predecessors, (461), 31 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2024-11-08 19:20:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 51527 states and 56533 transitions. [2024-11-08 19:20:00,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-08 19:20:00,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:00,028 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:00,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2024-11-08 19:20:00,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-08 19:20:00,229 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:20:00,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:00,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1327871600, now seen corresponding path program 27 times [2024-11-08 19:20:00,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:00,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150624554] [2024-11-08 19:20:00,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:00,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 19:20:00,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937377268] [2024-11-08 19:20:00,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 19:20:00,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:00,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:00,276 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:20:00,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-08 19:20:00,397 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-08 19:20:00,397 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:20:00,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 19:20:00,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3720 backedges. 0 proven. 2272 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2024-11-08 19:20:01,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:01,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:01,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150624554] [2024-11-08 19:20:01,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 19:20:01,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937377268] [2024-11-08 19:20:01,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937377268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:01,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:20:01,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-08 19:20:01,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289464281] [2024-11-08 19:20:01,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 19:20:01,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 19:20:01,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 19:20:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-08 19:20:01,804 INFO L87 Difference]: Start difference. First operand 51527 states and 56533 transitions. Second operand has 15 states, 14 states have (on average 13.0) internal successors, (182), 15 states have internal predecessors, (182), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-08 19:20:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:07,991 INFO L93 Difference]: Finished difference Result 75974 states and 83712 transitions. [2024-11-08 19:20:07,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 19:20:07,992 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 13.0) internal successors, (182), 15 states have internal predecessors, (182), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 416 [2024-11-08 19:20:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:08,061 INFO L225 Difference]: With dead ends: 75974 [2024-11-08 19:20:08,061 INFO L226 Difference]: Without dead ends: 52451 [2024-11-08 19:20:08,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=186, Invalid=1296, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 19:20:08,084 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 168 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 3098 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:08,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1439 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3098 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 19:20:08,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52451 states. [2024-11-08 19:20:12,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52451 to 51687. [2024-11-08 19:20:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51687 states, 48451 states have (on average 1.0369445419083196) internal successors, (50241), 48453 states have internal predecessors, (50241), 3231 states have call successors, (3231), 2 states have call predecessors, (3231), 2 states have return successors, (3231), 3231 states have call predecessors, (3231), 3231 states have call successors, (3231) [2024-11-08 19:20:12,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51687 states to 51687 states and 56703 transitions. [2024-11-08 19:20:12,274 INFO L78 Accepts]: Start accepts. Automaton has 51687 states and 56703 transitions. Word has length 416 [2024-11-08 19:20:12,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:20:12,275 INFO L471 AbstractCegarLoop]: Abstraction has 51687 states and 56703 transitions. [2024-11-08 19:20:12,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 13.0) internal successors, (182), 15 states have internal predecessors, (182), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-08 19:20:12,275 INFO L276 IsEmpty]: Start isEmpty. Operand 51687 states and 56703 transitions. [2024-11-08 19:20:12,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-08 19:20:12,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:20:12,280 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 17, 17, 17, 17, 17, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:20:12,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-08 19:20:12,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-08 19:20:12,480 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-08 19:20:12,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:20:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1518037702, now seen corresponding path program 28 times [2024-11-08 19:20:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:20:12,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808818274] [2024-11-08 19:20:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:20:12,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:20:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 19:20:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 19:20:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 19:20:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 19:20:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 19:20:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 19:20:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 19:20:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 19:20:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-08 19:20:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:12,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 19:20:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 19:20:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-08 19:20:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2024-11-08 19:20:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-11-08 19:20:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2024-11-08 19:20:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2024-11-08 19:20:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2024-11-08 19:20:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2024-11-08 19:20:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-11-08 19:20:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-11-08 19:20:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-08 19:20:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2024-11-08 19:20:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:20:13,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 1715 proven. 844 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2024-11-08 19:20:13,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:20:13,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808818274] [2024-11-08 19:20:13,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808818274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:20:13,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277799174] [2024-11-08 19:20:13,030 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 19:20:13,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:20:13,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:20:13,032 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:20:13,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d796ceec-0391-48c4-9fde-972c19c6b59f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-08 19:20:13,176 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 19:20:13,176 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:20:13,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 19:20:13,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:20:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 2079 proven. 844 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2024-11-08 19:20:13,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:20:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3660 backedges. 1715 proven. 844 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2024-11-08 19:20:14,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277799174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:20:14,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:20:14,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 25 [2024-11-08 19:20:14,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37681192] [2024-11-08 19:20:14,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:20:14,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 19:20:14,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:20:14,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 19:20:14,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2024-11-08 19:20:14,437 INFO L87 Difference]: Start difference. First operand 51687 states and 56703 transitions. Second operand has 25 states, 25 states have (on average 14.32) internal successors, (358), 25 states have internal predecessors, (358), 24 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) [2024-11-08 19:20:21,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:20:21,081 INFO L93 Difference]: Finished difference Result 109452 states and 120666 transitions. [2024-11-08 19:20:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 19:20:21,081 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 14.32) internal successors, (358), 25 states have internal predecessors, (358), 24 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 24 states have call predecessors, (26), 24 states have call successors, (26) Word has length 416 [2024-11-08 19:20:21,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:20:21,196 INFO L225 Difference]: With dead ends: 109452 [2024-11-08 19:20:21,196 INFO L226 Difference]: Without dead ends: 71639 [2024-11-08 19:20:21,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 896 GetRequests, 854 SyntacticMatches, 13 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2024-11-08 19:20:21,227 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 19 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 19:20:21,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 363 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 19:20:21,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71639 states.