./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya --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 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:20:15,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:20:15,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 04:20:15,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:20:15,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:20:15,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:20:15,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:20:15,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:20:15,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:20:15,627 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:20:15,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:20:15,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:20:15,629 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:20:15,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:20:15,630 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:20:15,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:20:15,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:20:15,632 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:20:15,632 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:20:15,633 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:20:15,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:20:15,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:20:15,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:20:15,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:20:15,635 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 04:20:15,636 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:20:15,636 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:20:15,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:20:15,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:20:15,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:20:15,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:20:15,638 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:20:15,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:20:15,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:15,639 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:20:15,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:20:15,640 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:20:15,640 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:20:15,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:20:15,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:20:15,641 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:20:15,641 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:20:15,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:20:15,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:20:15,642 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_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f54335276b565c52e40eef6a3f78ed9d794347e65877e7f862e4de86bcdea73 [2023-11-29 04:20:15,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:20:15,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:20:15,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:20:15,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:20:15,893 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:20:15,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2023-11-29 04:20:18,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:20:19,001 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:20:19,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test9-1.i [2023-11-29 04:20:19,027 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/data/ca129f60f/e313a39880c94e6087c98acebddef5d2/FLAGcfa1fc0e0 [2023-11-29 04:20:19,042 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/data/ca129f60f/e313a39880c94e6087c98acebddef5d2 [2023-11-29 04:20:19,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:20:19,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:20:19,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:19,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:20:19,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:20:19,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:19,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347bce59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19, skipping insertion in model container [2023-11-29 04:20:19,054 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:19,124 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:20:19,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:19,802 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:20:19,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:20:19,964 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:20:19,972 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:20:19,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19 WrapperNode [2023-11-29 04:20:19,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:20:19,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:20:19,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:20:19,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:20:19,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,023 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,145 INFO L138 Inliner]: procedures = 177, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3195 [2023-11-29 04:20:20,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:20:20,146 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:20:20,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:20:20,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:20:20,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,171 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,232 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [2, 34, 172, 5]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 47 writes are split as follows [0, 4, 42, 1]. [2023-11-29 04:20:20,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:20:20,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:20:20,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:20:20,343 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:20:20,344 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (1/1) ... [2023-11-29 04:20:20,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:20:20,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:20,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:20:20,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:20:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 04:20:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 04:20:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 04:20:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 04:20:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 04:20:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 04:20:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 04:20:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 04:20:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 04:20:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 04:20:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 04:20:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 04:20:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 04:20:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:20:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:20:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:20:20,599 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:20:20,601 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:20:22,985 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:20:23,036 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:20:23,036 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-29 04:20:23,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:23 BoogieIcfgContainer [2023-11-29 04:20:23,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:20:23,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:20:23,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:20:23,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:20:23,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:20:19" (1/3) ... [2023-11-29 04:20:23,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6546fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:23, skipping insertion in model container [2023-11-29 04:20:23,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:20:19" (2/3) ... [2023-11-29 04:20:23,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6546fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:20:23, skipping insertion in model container [2023-11-29 04:20:23,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:20:23" (3/3) ... [2023-11-29 04:20:23,045 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test9-1.i [2023-11-29 04:20:23,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:20:23,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 04:20:23,128 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:20:23,133 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@77c4b5dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:20:23,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-29 04:20:23,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 1342 states, 825 states have (on average 1.886060606060606) internal successors, (1556), 1335 states have internal predecessors, (1556), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-29 04:20:23,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:20:23,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:23,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:20:23,150 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:23,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:23,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1224117839, now seen corresponding path program 1 times [2023-11-29 04:20:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:23,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100685978] [2023-11-29 04:20:23,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:23,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:23,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100685978] [2023-11-29 04:20:23,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 04:20:23,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352100656] [2023-11-29 04:20:23,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:23,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:23,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:23,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:23,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:20:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:23,471 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:20:23,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:23,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:23,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352100656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:23,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:23,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:20:23,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517615656] [2023-11-29 04:20:23,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:23,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:20:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:23,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:20:23,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:20:23,535 INFO L87 Difference]: Start difference. First operand has 1342 states, 825 states have (on average 1.886060606060606) internal successors, (1556), 1335 states have internal predecessors, (1556), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:23,714 INFO L93 Difference]: Finished difference Result 2681 states and 5630 transitions. [2023-11-29 04:20:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:20:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 04:20:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:23,748 INFO L225 Difference]: With dead ends: 2681 [2023-11-29 04:20:23,748 INFO L226 Difference]: Without dead ends: 1335 [2023-11-29 04:20:23,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 04:20:23,766 INFO L413 NwaCegarLoop]: 2499 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2499 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:23,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2499 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:20:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2023-11-29 04:20:24,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1335. [2023-11-29 04:20:24,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 822 states have (on average 1.813868613138686) internal successors, (1491), 1329 states have internal predecessors, (1491), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:24,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 2497 transitions. [2023-11-29 04:20:24,161 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 2497 transitions. Word has length 6 [2023-11-29 04:20:24,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:24,162 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 2497 transitions. [2023-11-29 04:20:24,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:24,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 2497 transitions. [2023-11-29 04:20:24,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 04:20:24,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:24,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 04:20:24,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:20:24,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:24,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:24,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:24,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1224119761, now seen corresponding path program 1 times [2023-11-29 04:20:24,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:24,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234699047] [2023-11-29 04:20:24,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:24,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:24,401 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:24,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359759756] [2023-11-29 04:20:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:24,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:24,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:24,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:20:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:24,565 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:20:24,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:24,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:20:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:24,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:24,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:24,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234699047] [2023-11-29 04:20:24,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:24,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359759756] [2023-11-29 04:20:24,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359759756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:24,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:24,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:20:24,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140690808] [2023-11-29 04:20:24,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:24,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:20:24,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:24,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:20:24,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:20:24,657 INFO L87 Difference]: Start difference. First operand 1335 states and 2497 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:25,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:25,708 INFO L93 Difference]: Finished difference Result 2662 states and 4987 transitions. [2023-11-29 04:20:25,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:20:25,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 04:20:25,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:25,737 INFO L225 Difference]: With dead ends: 2662 [2023-11-29 04:20:25,737 INFO L226 Difference]: Without dead ends: 2660 [2023-11-29 04:20:25,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:25,740 INFO L413 NwaCegarLoop]: 2742 mSDtfsCounter, 1477 mSDsluCounter, 4710 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 7452 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:25,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1980 Valid, 7452 Invalid, 582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 04:20:25,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2023-11-29 04:20:26,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 1341. [2023-11-29 04:20:26,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 828 states have (on average 1.8091787439613527) internal successors, (1498), 1335 states have internal predecessors, (1498), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:26,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 2504 transitions. [2023-11-29 04:20:26,180 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 2504 transitions. Word has length 6 [2023-11-29 04:20:26,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:26,180 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 2504 transitions. [2023-11-29 04:20:26,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:26,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 2504 transitions. [2023-11-29 04:20:26,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 04:20:26,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:26,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:26,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:20:26,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:26,387 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:26,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:26,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1575453241, now seen corresponding path program 1 times [2023-11-29 04:20:26,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:26,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963152846] [2023-11-29 04:20:26,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:26,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:26,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:26,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:26,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963152846] [2023-11-29 04:20:26,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963152846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:26,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:26,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:20:26,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879993219] [2023-11-29 04:20:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:26,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:20:26,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:20:26,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:20:26,764 INFO L87 Difference]: Start difference. First operand 1341 states and 2504 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:27,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:27,669 INFO L93 Difference]: Finished difference Result 3809 states and 7208 transitions. [2023-11-29 04:20:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:20:27,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-29 04:20:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:27,690 INFO L225 Difference]: With dead ends: 3809 [2023-11-29 04:20:27,690 INFO L226 Difference]: Without dead ends: 2659 [2023-11-29 04:20:27,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:27,695 INFO L413 NwaCegarLoop]: 2703 mSDtfsCounter, 1478 mSDsluCounter, 4672 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1981 SdHoareTripleChecker+Valid, 7375 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:27,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1981 Valid, 7375 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:20:27,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2023-11-29 04:20:27,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 1341. [2023-11-29 04:20:27,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 828 states have (on average 1.8079710144927537) internal successors, (1497), 1335 states have internal predecessors, (1497), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 2503 transitions. [2023-11-29 04:20:27,978 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 2503 transitions. Word has length 63 [2023-11-29 04:20:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:27,978 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 2503 transitions. [2023-11-29 04:20:27,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 2503 transitions. [2023-11-29 04:20:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:20:27,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:27,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:27,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 04:20:27,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:27,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:27,983 INFO L85 PathProgramCache]: Analyzing trace with hash 460732866, now seen corresponding path program 1 times [2023-11-29 04:20:27,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:27,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075209442] [2023-11-29 04:20:27,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:27,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:28,029 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:28,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979656947] [2023-11-29 04:20:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:28,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:28,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:28,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:28,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:20:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:28,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:20:28,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:28,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:28,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075209442] [2023-11-29 04:20:28,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:28,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979656947] [2023-11-29 04:20:28,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979656947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:28,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:28,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:20:28,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122657513] [2023-11-29 04:20:28,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:28,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:20:28,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:28,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:20:28,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:20:28,332 INFO L87 Difference]: Start difference. First operand 1341 states and 2503 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:28,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:28,470 INFO L93 Difference]: Finished difference Result 2696 states and 5030 transitions. [2023-11-29 04:20:28,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:20:28,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:20:28,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:28,485 INFO L225 Difference]: With dead ends: 2696 [2023-11-29 04:20:28,486 INFO L226 Difference]: Without dead ends: 1362 [2023-11-29 04:20:28,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:20:28,492 INFO L413 NwaCegarLoop]: 2476 mSDtfsCounter, 8 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:28,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4936 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:28,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2023-11-29 04:20:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1361. [2023-11-29 04:20:28,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 848 states have (on average 1.7889150943396226) internal successors, (1517), 1355 states have internal predecessors, (1517), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 2523 transitions. [2023-11-29 04:20:28,692 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 2523 transitions. Word has length 80 [2023-11-29 04:20:28,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:28,693 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 2523 transitions. [2023-11-29 04:20:28,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:28,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 2523 transitions. [2023-11-29 04:20:28,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:20:28,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:28,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:28,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:20:28,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:28,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:28,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:28,904 INFO L85 PathProgramCache]: Analyzing trace with hash -415286140, now seen corresponding path program 1 times [2023-11-29 04:20:28,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:28,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176382963] [2023-11-29 04:20:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:28,961 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:28,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480141413] [2023-11-29 04:20:28,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:28,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:28,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:28,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:28,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:20:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:29,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:20:29,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:29,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:29,270 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:29,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:29,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176382963] [2023-11-29 04:20:29,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:29,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480141413] [2023-11-29 04:20:29,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480141413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:29,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:29,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:20:29,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106026032] [2023-11-29 04:20:29,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:29,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:20:29,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:29,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:20:29,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:29,274 INFO L87 Difference]: Start difference. First operand 1361 states and 2523 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:29,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:29,427 INFO L93 Difference]: Finished difference Result 2702 states and 5026 transitions. [2023-11-29 04:20:29,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:20:29,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:20:29,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:29,441 INFO L225 Difference]: With dead ends: 2702 [2023-11-29 04:20:29,442 INFO L226 Difference]: Without dead ends: 1348 [2023-11-29 04:20:29,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:29,448 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 163 mSDsluCounter, 4912 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 7379 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:29,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 7379 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:29,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2023-11-29 04:20:29,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 1347. [2023-11-29 04:20:29,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1347 states, 834 states have (on average 1.7937649880095923) internal successors, (1496), 1341 states have internal predecessors, (1496), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 2502 transitions. [2023-11-29 04:20:29,630 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 2502 transitions. Word has length 80 [2023-11-29 04:20:29,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:29,631 INFO L495 AbstractCegarLoop]: Abstraction has 1347 states and 2502 transitions. [2023-11-29 04:20:29,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:29,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 2502 transitions. [2023-11-29 04:20:29,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:20:29,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:29,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:29,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:20:29,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:29,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:29,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:29,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1029872566, now seen corresponding path program 1 times [2023-11-29 04:20:29,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:29,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007318357] [2023-11-29 04:20:29,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:29,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:29,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [627725186] [2023-11-29 04:20:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:29,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:29,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:29,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:29,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:20:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:30,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:20:30,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:30,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:30,202 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:30,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:30,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007318357] [2023-11-29 04:20:30,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:30,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627725186] [2023-11-29 04:20:30,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627725186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:30,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:30,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:20:30,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342511802] [2023-11-29 04:20:30,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:30,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:20:30,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:30,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:20:30,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:30,205 INFO L87 Difference]: Start difference. First operand 1347 states and 2502 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:30,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:30,403 INFO L93 Difference]: Finished difference Result 2797 states and 5166 transitions. [2023-11-29 04:20:30,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:20:30,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:20:30,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:30,418 INFO L225 Difference]: With dead ends: 2797 [2023-11-29 04:20:30,418 INFO L226 Difference]: Without dead ends: 1457 [2023-11-29 04:20:30,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:30,425 INFO L413 NwaCegarLoop]: 2470 mSDtfsCounter, 143 mSDsluCounter, 7384 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 9854 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:30,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 9854 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-11-29 04:20:30,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1370. [2023-11-29 04:20:30,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 857 states have (on average 1.7747957992998833) internal successors, (1521), 1364 states have internal predecessors, (1521), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:30,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 2527 transitions. [2023-11-29 04:20:30,673 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 2527 transitions. Word has length 80 [2023-11-29 04:20:30,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:30,674 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 2527 transitions. [2023-11-29 04:20:30,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:30,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 2527 transitions. [2023-11-29 04:20:30,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:20:30,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:30,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:30,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:20:30,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:30,876 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:30,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:30,877 INFO L85 PathProgramCache]: Analyzing trace with hash -268672912, now seen corresponding path program 1 times [2023-11-29 04:20:30,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:30,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531080432] [2023-11-29 04:20:30,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:30,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:30,920 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:30,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1256867303] [2023-11-29 04:20:30,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:30,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:30,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:30,922 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:30,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:20:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:31,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:20:31,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:31,222 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:31,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:31,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531080432] [2023-11-29 04:20:31,223 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:31,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256867303] [2023-11-29 04:20:31,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256867303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:31,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:31,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:20:31,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186062558] [2023-11-29 04:20:31,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:31,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:20:31,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:31,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:20:31,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:20:31,225 INFO L87 Difference]: Start difference. First operand 1370 states and 2527 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:31,338 INFO L93 Difference]: Finished difference Result 2665 states and 4947 transitions. [2023-11-29 04:20:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:20:31,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:20:31,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:31,352 INFO L225 Difference]: With dead ends: 2665 [2023-11-29 04:20:31,352 INFO L226 Difference]: Without dead ends: 1302 [2023-11-29 04:20:31,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:31,358 INFO L413 NwaCegarLoop]: 2400 mSDtfsCounter, 78 mSDsluCounter, 4717 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 7117 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:31,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 7117 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:20:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2023-11-29 04:20:31,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1302. [2023-11-29 04:20:31,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 789 states have (on average 1.7984790874524714) internal successors, (1419), 1296 states have internal predecessors, (1419), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-29 04:20:31,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 2425 transitions. [2023-11-29 04:20:31,539 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 2425 transitions. Word has length 80 [2023-11-29 04:20:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:31,540 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 2425 transitions. [2023-11-29 04:20:31,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:31,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 2425 transitions. [2023-11-29 04:20:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 04:20:31,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:31,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:31,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:20:31,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:31,747 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:31,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash 153853560, now seen corresponding path program 1 times [2023-11-29 04:20:31,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:31,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014418906] [2023-11-29 04:20:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:31,790 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:31,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284848311] [2023-11-29 04:20:31,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:31,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:31,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:31,791 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:31,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:20:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:32,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:20:32,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:20:32,287 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:32,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:32,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014418906] [2023-11-29 04:20:32,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284848311] [2023-11-29 04:20:32,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284848311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:32,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:32,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 04:20:32,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995919073] [2023-11-29 04:20:32,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:32,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:20:32,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:32,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:20:32,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:20:32,290 INFO L87 Difference]: Start difference. First operand 1302 states and 2425 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:32,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:32,452 INFO L93 Difference]: Finished difference Result 3792 states and 7133 transitions. [2023-11-29 04:20:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:20:32,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-11-29 04:20:32,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:32,471 INFO L225 Difference]: With dead ends: 3792 [2023-11-29 04:20:32,471 INFO L226 Difference]: Without dead ends: 2497 [2023-11-29 04:20:32,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:20:32,475 INFO L413 NwaCegarLoop]: 2838 mSDtfsCounter, 1242 mSDsluCounter, 2395 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 5233 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:32,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 5233 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:20:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2023-11-29 04:20:32,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2493. [2023-11-29 04:20:32,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 1480 states have (on average 1.829054054054054) internal successors, (2707), 2487 states have internal predecessors, (2707), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 04:20:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 4713 transitions. [2023-11-29 04:20:32,791 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 4713 transitions. Word has length 80 [2023-11-29 04:20:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:32,792 INFO L495 AbstractCegarLoop]: Abstraction has 2493 states and 4713 transitions. [2023-11-29 04:20:32,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:20:32,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 4713 transitions. [2023-11-29 04:20:32,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 04:20:32,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:32,794 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:32,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 04:20:33,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:33,001 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:33,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:33,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1063139117, now seen corresponding path program 1 times [2023-11-29 04:20:33,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:33,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588085752] [2023-11-29 04:20:33,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:33,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:33,053 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:33,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758965025] [2023-11-29 04:20:33,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:33,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:33,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:33,055 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:33,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:20:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:33,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:20:33,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:33,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:20:33,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 04:20:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:20:33,551 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:33,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:33,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588085752] [2023-11-29 04:20:33,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:33,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758965025] [2023-11-29 04:20:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758965025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:20:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184662260] [2023-11-29 04:20:33,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:33,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:20:33,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:33,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:20:33,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:20:33,554 INFO L87 Difference]: Start difference. First operand 2493 states and 4713 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2023-11-29 04:20:37,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:20:41,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:20:44,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:20:44,301 INFO L93 Difference]: Finished difference Result 4652 states and 8950 transitions. [2023-11-29 04:20:44,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:20:44,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 93 [2023-11-29 04:20:44,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:20:44,334 INFO L225 Difference]: With dead ends: 4652 [2023-11-29 04:20:44,334 INFO L226 Difference]: Without dead ends: 4651 [2023-11-29 04:20:44,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:20:44,337 INFO L413 NwaCegarLoop]: 1889 mSDtfsCounter, 1326 mSDsluCounter, 5804 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 503 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 7693 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-11-29 04:20:44,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1827 Valid, 7693 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1591 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2023-11-29 04:20:44,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2023-11-29 04:20:44,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 2492. [2023-11-29 04:20:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 1480 states have (on average 1.8283783783783785) internal successors, (2706), 2486 states have internal predecessors, (2706), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 04:20:44,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4712 transitions. [2023-11-29 04:20:44,947 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4712 transitions. Word has length 93 [2023-11-29 04:20:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:20:44,947 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4712 transitions. [2023-11-29 04:20:44,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2023-11-29 04:20:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4712 transitions. [2023-11-29 04:20:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 04:20:44,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:20:44,949 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:20:44,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:20:45,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:45,150 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:20:45,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:20:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1402426538, now seen corresponding path program 1 times [2023-11-29 04:20:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:20:45,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157226307] [2023-11-29 04:20:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:45,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:20:45,198 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:20:45,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58560076] [2023-11-29 04:20:45,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:20:45,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:20:45,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:20:45,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:20:45,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:20:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:20:45,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 04:20:45,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:20:45,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 04:20:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:20:45,651 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:20:45,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:20:45,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157226307] [2023-11-29 04:20:45,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:20:45,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58560076] [2023-11-29 04:20:45,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58560076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:20:45,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:20:45,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:20:45,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180366988] [2023-11-29 04:20:45,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:20:45,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:20:45,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:20:45,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:20:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:20:45,654 INFO L87 Difference]: Start difference. First operand 2492 states and 4712 transitions. Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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) [2023-11-29 04:20:49,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:20:53,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:20:58,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 04:21:00,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:00,725 INFO L93 Difference]: Finished difference Result 4651 states and 8949 transitions. [2023-11-29 04:21:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 04:21:00,726 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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 94 [2023-11-29 04:21:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:00,756 INFO L225 Difference]: With dead ends: 4651 [2023-11-29 04:21:00,756 INFO L226 Difference]: Without dead ends: 4650 [2023-11-29 04:21:00,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 04:21:00,758 INFO L413 NwaCegarLoop]: 1888 mSDtfsCounter, 1323 mSDsluCounter, 7187 mSDsCounter, 0 mSdLazyCounter, 2629 mSolverCounterSat, 503 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 9075 SdHoareTripleChecker+Invalid, 3135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 2629 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:00,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 9075 Invalid, 3135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 2629 Invalid, 3 Unknown, 0 Unchecked, 14.8s Time] [2023-11-29 04:21:00,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2023-11-29 04:21:01,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 2491. [2023-11-29 04:21:01,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 1480 states have (on average 1.8277027027027026) internal successors, (2705), 2485 states have internal predecessors, (2705), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 04:21:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 4711 transitions. [2023-11-29 04:21:01,606 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 4711 transitions. Word has length 94 [2023-11-29 04:21:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:01,607 INFO L495 AbstractCegarLoop]: Abstraction has 2491 states and 4711 transitions. [2023-11-29 04:21:01,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 6 states have internal predecessors, (88), 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) [2023-11-29 04:21:01,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 4711 transitions. [2023-11-29 04:21:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 04:21:01,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:01,608 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:01,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 04:21:01,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 04:21:01,809 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:21:01,809 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:01,809 INFO L85 PathProgramCache]: Analyzing trace with hash -801402872, now seen corresponding path program 1 times [2023-11-29 04:21:01,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:01,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012072838] [2023-11-29 04:21:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:01,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:01,855 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:01,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [578016035] [2023-11-29 04:21:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:01,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:01,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:01,856 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:01,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:21:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:02,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 04:21:02,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:02,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:21:02,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:21:02,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 04:21:02,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:21:02,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 04:21:02,871 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:21:02,871 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:21:02,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:21:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012072838] [2023-11-29 04:21:02,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:21:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578016035] [2023-11-29 04:21:02,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578016035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:21:02,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:21:02,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 04:21:02,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183431347] [2023-11-29 04:21:02,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:21:02,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:21:02,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:21:02,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:21:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:21:02,874 INFO L87 Difference]: Start difference. First operand 2491 states and 4711 transitions. Second operand has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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) [2023-11-29 04:21:06,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:21:06,492 INFO L93 Difference]: Finished difference Result 7159 states and 13695 transitions. [2023-11-29 04:21:06,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:21:06,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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 99 [2023-11-29 04:21:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:21:06,516 INFO L225 Difference]: With dead ends: 7159 [2023-11-29 04:21:06,516 INFO L226 Difference]: Without dead ends: 4706 [2023-11-29 04:21:06,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-11-29 04:21:06,524 INFO L413 NwaCegarLoop]: 2645 mSDtfsCounter, 1490 mSDsluCounter, 13904 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 16549 SdHoareTripleChecker+Invalid, 2137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:21:06,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 16549 Invalid, 2137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 04:21:06,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2023-11-29 04:21:07,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 2491. [2023-11-29 04:21:07,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 1480 states have (on average 1.827027027027027) internal successors, (2704), 2485 states have internal predecessors, (2704), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 04:21:07,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 4710 transitions. [2023-11-29 04:21:07,389 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 4710 transitions. Word has length 99 [2023-11-29 04:21:07,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:21:07,389 INFO L495 AbstractCegarLoop]: Abstraction has 2491 states and 4710 transitions. [2023-11-29 04:21:07,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.75) internal successors, (93), 11 states have internal predecessors, (93), 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) [2023-11-29 04:21:07,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 4710 transitions. [2023-11-29 04:21:07,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 04:21:07,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:21:07,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:21:07,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-29 04:21:07,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 04:21:07,593 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:21:07,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:21:07,593 INFO L85 PathProgramCache]: Analyzing trace with hash 167575874, now seen corresponding path program 1 times [2023-11-29 04:21:07,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:21:07,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950419781] [2023-11-29 04:21:07,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:07,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:21:07,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:21:07,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393592748] [2023-11-29 04:21:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:21:07,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:21:07,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:21:07,632 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:21:07,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 04:21:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:21:07,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 04:21:07,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:21:08,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:21:08,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 22 [2023-11-29 04:21:16,750 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:21:28,817 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:21:36,864 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:21:44,902 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:21:57,003 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:22:06,358 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 19 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:22:14,400 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:22:22,481 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:22:35,154 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:22:47,459 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:22:55,478 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:23:07,606 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:23:15,639 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:23:23,661 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:23:31,680 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 04:23:39,736 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse6 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4276993779) 4294967296))) (let ((.cse0 (mod (+ 2690382803 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4294967296)) (.cse3 (* .cse6 256)) (.cse5 (* (- 1) |c_ULTIMATE.start_main_~_ha_hashv~0#1|))) (or (exists ((v_z_29 Int)) (and (exists ((v_y_26 Int) (v_y_29 Int)) (let ((.cse4 (* v_y_26 4294967296)) (.cse1 (* v_z_29 4294967295)) (.cse2 (* v_y_29 4294967296))) (and (= (+ .cse0 .cse1 .cse2) 4294967296) (= .cse3 (+ .cse4 (* v_z_29 4294967039) .cse2)) (<= (+ .cse4 |c_ULTIMATE.start_main_~_ha_hashv~0#1| .cse1 .cse2) 8553987558) (<= (div (+ (div (+ (- 255) (div (+ 8553987302 (* v_z_29 (- 4294967295)) .cse5) 256)) 256) (- 255)) 256) (+ 254 (* v_y_26 256) (* v_y_29 256)))))) (<= 0 v_z_29) (<= (+ .cse6 v_z_29) 4294967295))) (exists ((v_z_29 Int)) (and (exists ((v_y_26 Int) (v_y_29 Int)) (let ((.cse7 (* v_z_29 4294967295)) (.cse9 (* v_y_26 4294967296)) (.cse8 (* v_y_29 4294967296))) (and (= (+ .cse0 .cse7 .cse8) 4294967296) (<= (+ .cse9 |c_ULTIMATE.start_main_~_ha_hashv~0#1| .cse7 .cse8) 8553987558) (= .cse3 (+ 1099511627776 .cse9 (* v_z_29 4294967039) .cse8)) (<= (div (+ (div (+ (- 255) (div (+ 8553987302 (* v_z_29 (- 4294967295)) .cse5) 256)) 256) (- 255)) 256) (+ 254 (* v_y_26 256) (* v_y_29 256)))))) (<= 4294967296 (+ .cse6 v_z_29)) (<= v_z_29 4294967295)))))) is different from false [2023-11-29 04:23:42,413 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 04:23:42,413 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:42,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:42,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950419781] [2023-11-29 04:23:42,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:42,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393592748] [2023-11-29 04:23:42,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393592748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:42,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:42,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 04:23:42,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011940181] [2023-11-29 04:23:42,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:42,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 04:23:42,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:42,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 04:23:42,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=108, Unknown=1, NotChecked=20, Total=156 [2023-11-29 04:23:42,416 INFO L87 Difference]: Start difference. First operand 2491 states and 4710 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 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) [2023-11-29 04:23:44,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:44,616 INFO L93 Difference]: Finished difference Result 4958 states and 9402 transitions. [2023-11-29 04:23:44,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 04:23:44,617 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 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 100 [2023-11-29 04:23:44,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:44,631 INFO L225 Difference]: With dead ends: 4958 [2023-11-29 04:23:44,631 INFO L226 Difference]: Without dead ends: 2505 [2023-11-29 04:23:44,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=35, Invalid=150, Unknown=1, NotChecked=24, Total=210 [2023-11-29 04:23:44,638 INFO L413 NwaCegarLoop]: 2394 mSDtfsCounter, 10 mSDsluCounter, 25563 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27957 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 95 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:44,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27957 Invalid, 1004 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 906 Invalid, 0 Unknown, 95 Unchecked, 1.8s Time] [2023-11-29 04:23:44,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2023-11-29 04:23:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2499. [2023-11-29 04:23:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 1488 states have (on average 1.8225806451612903) internal successors, (2712), 2493 states have internal predecessors, (2712), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-29 04:23:45,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 4718 transitions. [2023-11-29 04:23:45,131 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 4718 transitions. Word has length 100 [2023-11-29 04:23:45,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:45,132 INFO L495 AbstractCegarLoop]: Abstraction has 2499 states and 4718 transitions. [2023-11-29 04:23:45,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 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) [2023-11-29 04:23:45,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 4718 transitions. [2023-11-29 04:23:45,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 04:23:45,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:45,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:45,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-29 04:23:45,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 04:23:45,334 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:23:45,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:45,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2098254433, now seen corresponding path program 1 times [2023-11-29 04:23:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:45,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73813840] [2023-11-29 04:23:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:45,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:45,386 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:45,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031201463] [2023-11-29 04:23:45,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:45,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:45,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:45,387 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:45,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 04:23:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:45,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:23:45,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:23:45,914 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:23:45,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:23:45,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73813840] [2023-11-29 04:23:45,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 04:23:45,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031201463] [2023-11-29 04:23:45,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031201463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:23:45,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:23:45,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 04:23:45,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491508347] [2023-11-29 04:23:45,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:23:45,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 04:23:45,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:23:45,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 04:23:45,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 04:23:45,917 INFO L87 Difference]: Start difference. First operand 2499 states and 4718 transitions. Second operand has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:23:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:23:46,068 INFO L93 Difference]: Finished difference Result 4919 states and 9334 transitions. [2023-11-29 04:23:46,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 04:23:46,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 101 [2023-11-29 04:23:46,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:23:46,085 INFO L225 Difference]: With dead ends: 4919 [2023-11-29 04:23:46,085 INFO L226 Difference]: Without dead ends: 2501 [2023-11-29 04:23:46,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 04:23:46,093 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 1 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:23:46,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7229 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:23:46,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2501 states. [2023-11-29 04:23:46,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2501 to 2501. [2023-11-29 04:23:46,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 1489 states have (on average 1.8226997985224984) internal successors, (2714), 2495 states have internal predecessors, (2714), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-29 04:23:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 4721 transitions. [2023-11-29 04:23:46,657 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 4721 transitions. Word has length 101 [2023-11-29 04:23:46,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:23:46,658 INFO L495 AbstractCegarLoop]: Abstraction has 2501 states and 4721 transitions. [2023-11-29 04:23:46,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 32.333333333333336) internal successors, (97), 4 states have internal predecessors, (97), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 04:23:46,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 4721 transitions. [2023-11-29 04:23:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 04:23:46,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:23:46,660 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:23:46,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 04:23:46,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 04:23:46,861 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-29 04:23:46,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:23:46,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1052838845, now seen corresponding path program 1 times [2023-11-29 04:23:46,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:23:46,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387494785] [2023-11-29 04:23:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:23:46,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 04:23:46,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753813075] [2023-11-29 04:23:46,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:23:46,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:23:46,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:23:46,912 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:23:46,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1766df29-a8f5-4f95-a29f-2eb461f96723/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 04:23:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:23:47,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-29 04:23:47,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:23:47,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:23:47,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 04:23:47,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:23:47,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:23:47,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 04:23:47,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 04:23:47,643 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 04:23:47,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-29 04:23:47,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 04:23:47,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 04:23:47,888 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 04:23:47,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 04:23:47,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 04:27:36,273 INFO L224 Elim1Store]: Index analysis took 7552 ms