./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.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_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/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_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/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_858d3635-08f6-4b18-8fae-62b4d0e33ec0/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:47:43,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:47:43,385 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:47:43,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:47:43,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:47:43,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:47:43,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:47:43,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:47:43,416 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:47:43,417 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:47:43,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:47:43,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:47:43,418 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:47:43,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:47:43,419 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:47:43,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:47:43,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:47:43,421 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:47:43,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:47:43,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:47:43,422 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:47:43,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:47:43,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:47:43,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:47:43,428 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:47:43,429 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:47:43,429 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:47:43,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:47:43,430 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:47:43,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:47:43,431 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:47:43,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:47:43,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:47:43,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:47:43,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:47:43,432 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:47:43,432 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:47:43,432 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:47:43,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:47:43,433 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:47:43,433 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:47:43,433 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:47:43,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:47:43,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:47:43,434 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_858d3635-08f6-4b18-8fae-62b4d0e33ec0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2023-11-29 06:47:43,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:47:43,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:47:43,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:47:43,658 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:47:43,659 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:47:43,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2023-11-29 06:47:46,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:47:46,630 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:47:46,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2023-11-29 06:47:46,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/data/d2fb70d5a/2ece57c0540c4b8aa98d1b8139d0476e/FLAGf16aed82b [2023-11-29 06:47:46,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/data/d2fb70d5a/2ece57c0540c4b8aa98d1b8139d0476e [2023-11-29 06:47:46,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:47:46,670 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:47:46,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:47:46,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:47:46,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:47:46,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:46" (1/1) ... [2023-11-29 06:47:46,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a04055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:46, skipping insertion in model container [2023-11-29 06:47:46,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:47:46" (1/1) ... [2023-11-29 06:47:46,759 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:47:47,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:47:47,281 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:47:47,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:47:47,426 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:47:47,434 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:47:47,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47 WrapperNode [2023-11-29 06:47:47,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:47:47,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:47:47,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:47:47,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:47:47,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,532 INFO L138 Inliner]: procedures = 207, calls = 281, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1358 [2023-11-29 06:47:47,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:47:47,534 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:47:47,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:47:47,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:47:47,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,644 INFO L175 MemorySlicer]: Split 259 memory accesses to 4 slices as follows [34, 2, 5, 218]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 55 writes are split as follows [4, 0, 1, 50]. [2023-11-29 06:47:47,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:47:47,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:47:47,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:47:47,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:47:47,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (1/1) ... [2023-11-29 06:47:47,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:47:47,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:47,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:47:47,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:47:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 06:47:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 06:47:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 06:47:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 06:47:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 06:47:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 06:47:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 06:47:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 06:47:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:47:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 06:47:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 06:47:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 06:47:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 06:47:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 06:47:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:47:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:47:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:47:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:47:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:47:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 06:47:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 06:47:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 06:47:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 06:47:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:47:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:47:47,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:47:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:47:47,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:47:47,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:47:48,003 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:47:48,005 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:47:49,343 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:47:49,386 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:47:49,386 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 06:47:49,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:49 BoogieIcfgContainer [2023-11-29 06:47:49,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:47:49,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:47:49,390 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:47:49,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:47:49,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:47:46" (1/3) ... [2023-11-29 06:47:49,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2299f83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:49, skipping insertion in model container [2023-11-29 06:47:49,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:47:47" (2/3) ... [2023-11-29 06:47:49,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2299f83f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:47:49, skipping insertion in model container [2023-11-29 06:47:49,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:47:49" (3/3) ... [2023-11-29 06:47:49,396 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-2.i [2023-11-29 06:47:49,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:47:49,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 06:47:49,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:47:49,467 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;@2918c328, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:47:49,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 06:47:49,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 366 states, 355 states have (on average 1.7070422535211267) internal successors, (606), 361 states have internal predecessors, (606), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:49,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 06:47:49,478 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:49,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:49,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:49,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2081600617, now seen corresponding path program 1 times [2023-11-29 06:47:49,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:49,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796574528] [2023-11-29 06:47:49,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:49,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:49,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:49,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796574528] [2023-11-29 06:47:49,650 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 06:47:49,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311172577] [2023-11-29 06:47:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:49,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:49,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:49,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:49,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 06:47:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:49,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 06:47:49,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:49,854 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 06:47:49,854 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:49,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311172577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:49,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:49,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:47:49,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119672083] [2023-11-29 06:47:49,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:49,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 06:47:49,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:49,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 06:47:49,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 06:47:49,892 INFO L87 Difference]: Start difference. First operand has 366 states, 355 states have (on average 1.7070422535211267) internal successors, (606), 361 states have internal predecessors, (606), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:47:49,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:49,971 INFO L93 Difference]: Finished difference Result 729 states and 1220 transitions. [2023-11-29 06:47:49,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 06:47:49,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 06:47:49,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:49,985 INFO L225 Difference]: With dead ends: 729 [2023-11-29 06:47:49,985 INFO L226 Difference]: Without dead ends: 328 [2023-11-29 06:47:49,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 06:47:49,993 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:49,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 537 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:47:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-29 06:47:50,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2023-11-29 06:47:50,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 318 states have (on average 1.5251572327044025) internal successors, (485), 323 states have internal predecessors, (485), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 491 transitions. [2023-11-29 06:47:50,055 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 491 transitions. Word has length 7 [2023-11-29 06:47:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:50,056 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 491 transitions. [2023-11-29 06:47:50,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:47:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 491 transitions. [2023-11-29 06:47:50,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 06:47:50,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:50,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:47:50,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 06:47:50,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 06:47:50,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:50,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2081602539, now seen corresponding path program 1 times [2023-11-29 06:47:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:50,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839049157] [2023-11-29 06:47:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:50,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:50,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1385274186] [2023-11-29 06:47:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:50,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:50,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:50,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:50,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 06:47:50,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:50,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 06:47:50,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:50,501 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 06:47:50,528 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 06:47:50,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:50,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:50,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839049157] [2023-11-29 06:47:50,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:50,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385274186] [2023-11-29 06:47:50,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385274186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:50,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:50,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:47:50,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553070092] [2023-11-29 06:47:50,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:50,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:47:50,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:50,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:47:50,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:47:50,532 INFO L87 Difference]: Start difference. First operand 328 states and 491 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:47:50,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:50,679 INFO L93 Difference]: Finished difference Result 651 states and 977 transitions. [2023-11-29 06:47:50,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:47:50,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 06:47:50,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:50,684 INFO L225 Difference]: With dead ends: 651 [2023-11-29 06:47:50,685 INFO L226 Difference]: Without dead ends: 649 [2023-11-29 06:47:50,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 06:47:50,687 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 473 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:50,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1394 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:50,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-11-29 06:47:50,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 334. [2023-11-29 06:47:50,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 324 states have (on average 1.5185185185185186) internal successors, (492), 329 states have internal predecessors, (492), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:50,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 498 transitions. [2023-11-29 06:47:50,714 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 498 transitions. Word has length 7 [2023-11-29 06:47:50,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:50,714 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 498 transitions. [2023-11-29 06:47:50,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:47:50,715 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 498 transitions. [2023-11-29 06:47:50,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 06:47:50,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:50,719 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] [2023-11-29 06:47:50,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 06:47:50,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:50,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:50,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 396575491, now seen corresponding path program 1 times [2023-11-29 06:47:50,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:50,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918294365] [2023-11-29 06:47:50,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:50,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:51,168 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 06:47:51,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:51,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918294365] [2023-11-29 06:47:51,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918294365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:51,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:51,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:47:51,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477490640] [2023-11-29 06:47:51,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:51,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:47:51,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:47:51,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:47:51,171 INFO L87 Difference]: Start difference. First operand 334 states and 498 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 06:47:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:51,262 INFO L93 Difference]: Finished difference Result 479 states and 718 transitions. [2023-11-29 06:47:51,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:47:51,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2023-11-29 06:47:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:51,265 INFO L225 Difference]: With dead ends: 479 [2023-11-29 06:47:51,266 INFO L226 Difference]: Without dead ends: 338 [2023-11-29 06:47:51,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 06:47:51,267 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 165 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:51,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1231 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:51,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-29 06:47:51,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 334. [2023-11-29 06:47:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 324 states have (on average 1.4969135802469136) internal successors, (485), 329 states have internal predecessors, (485), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 491 transitions. [2023-11-29 06:47:51,282 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 491 transitions. Word has length 66 [2023-11-29 06:47:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:51,282 INFO L495 AbstractCegarLoop]: Abstraction has 334 states and 491 transitions. [2023-11-29 06:47:51,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 06:47:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 491 transitions. [2023-11-29 06:47:51,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 06:47:51,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:51,286 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] [2023-11-29 06:47:51,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:47:51,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:51,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2144499081, now seen corresponding path program 1 times [2023-11-29 06:47:51,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:51,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133303754] [2023-11-29 06:47:51,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:51,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:51,577 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 06:47:51,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:51,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133303754] [2023-11-29 06:47:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133303754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:51,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:51,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:47:51,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370642282] [2023-11-29 06:47:51,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:47:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:51,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:47:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:47:51,580 INFO L87 Difference]: Start difference. First operand 334 states and 491 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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 06:47:51,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:51,681 INFO L93 Difference]: Finished difference Result 649 states and 961 transitions. [2023-11-29 06:47:51,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:47:51,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2023-11-29 06:47:51,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:51,686 INFO L225 Difference]: With dead ends: 649 [2023-11-29 06:47:51,686 INFO L226 Difference]: Without dead ends: 647 [2023-11-29 06:47:51,687 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 06:47:51,688 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 408 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:51,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1476 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-29 06:47:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 473. [2023-11-29 06:47:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 463 states have (on average 1.4946004319654427) internal successors, (692), 468 states have internal predecessors, (692), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 698 transitions. [2023-11-29 06:47:51,706 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 698 transitions. Word has length 66 [2023-11-29 06:47:51,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:51,707 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 698 transitions. [2023-11-29 06:47:51,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 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 06:47:51,707 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 698 transitions. [2023-11-29 06:47:51,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:47:51,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:51,711 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, 1] [2023-11-29 06:47:51,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:47:51,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:51,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:51,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1735784866, now seen corresponding path program 1 times [2023-11-29 06:47:51,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:51,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119047263] [2023-11-29 06:47:51,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:51,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:51,763 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:51,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695348726] [2023-11-29 06:47:51,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:51,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:51,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:51,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:51,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 06:47:52,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:52,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:47:52,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:52,083 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 06:47:52,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:52,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:52,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119047263] [2023-11-29 06:47:52,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:52,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695348726] [2023-11-29 06:47:52,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695348726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:52,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:52,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:47:52,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475080472] [2023-11-29 06:47:52,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:52,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:47:52,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:52,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:47:52,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:47:52,086 INFO L87 Difference]: Start difference. First operand 473 states and 698 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 06:47:52,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:52,176 INFO L93 Difference]: Finished difference Result 959 states and 1418 transitions. [2023-11-29 06:47:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:47:52,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2023-11-29 06:47:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:52,180 INFO L225 Difference]: With dead ends: 959 [2023-11-29 06:47:52,180 INFO L226 Difference]: Without dead ends: 494 [2023-11-29 06:47:52,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 06:47:52,182 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 9 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 908 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 06:47:52,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 908 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:52,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2023-11-29 06:47:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 493. [2023-11-29 06:47:52,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 483 states have (on average 1.474120082815735) internal successors, (712), 488 states have internal predecessors, (712), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:52,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 718 transitions. [2023-11-29 06:47:52,196 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 718 transitions. Word has length 81 [2023-11-29 06:47:52,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:52,196 INFO L495 AbstractCegarLoop]: Abstraction has 493 states and 718 transitions. [2023-11-29 06:47:52,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 06:47:52,197 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 718 transitions. [2023-11-29 06:47:52,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:47:52,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:52,198 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, 1] [2023-11-29 06:47:52,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 06:47:52,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:52,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:52,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2125453344, now seen corresponding path program 1 times [2023-11-29 06:47:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:52,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010158171] [2023-11-29 06:47:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:52,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:52,457 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:52,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569192161] [2023-11-29 06:47:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:52,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:52,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:52,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:52,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 06:47:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:52,742 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 06:47:52,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:52,768 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 06:47:52,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:52,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:52,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010158171] [2023-11-29 06:47:52,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:52,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569192161] [2023-11-29 06:47:52,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569192161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:52,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:52,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:47:52,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492813388] [2023-11-29 06:47:52,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:52,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:47:52,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:52,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:47:52,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:47:52,770 INFO L87 Difference]: Start difference. First operand 493 states and 718 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 06:47:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:52,856 INFO L93 Difference]: Finished difference Result 965 states and 1414 transitions. [2023-11-29 06:47:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:47:52,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2023-11-29 06:47:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:52,860 INFO L225 Difference]: With dead ends: 965 [2023-11-29 06:47:52,860 INFO L226 Difference]: Without dead ends: 480 [2023-11-29 06:47:52,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 06:47:52,861 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 165 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:52,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1210 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:52,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-29 06:47:52,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2023-11-29 06:47:52,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 469 states have (on average 1.4733475479744136) internal successors, (691), 474 states have internal predecessors, (691), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 697 transitions. [2023-11-29 06:47:52,901 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 697 transitions. Word has length 81 [2023-11-29 06:47:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:52,902 INFO L495 AbstractCegarLoop]: Abstraction has 479 states and 697 transitions. [2023-11-29 06:47:52,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 06:47:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 697 transitions. [2023-11-29 06:47:52,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-29 06:47:52,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:52,904 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, 1] [2023-11-29 06:47:52,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 06:47:53,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:53,107 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:53,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:53,107 INFO L85 PathProgramCache]: Analyzing trace with hash -646434094, now seen corresponding path program 1 times [2023-11-29 06:47:53,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:53,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18550961] [2023-11-29 06:47:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:53,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:53,162 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:53,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2043100999] [2023-11-29 06:47:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:53,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:53,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:53,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:53,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 06:47:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:53,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:47:53,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:53,717 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 06:47:53,717 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:53,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18550961] [2023-11-29 06:47:53,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:53,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043100999] [2023-11-29 06:47:53,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043100999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:53,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:53,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:47:53,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108889939] [2023-11-29 06:47:53,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:53,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:47:53,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:53,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:47:53,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:47:53,721 INFO L87 Difference]: Start difference. First operand 479 states and 697 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 06:47:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:53,788 INFO L93 Difference]: Finished difference Result 1306 states and 1921 transitions. [2023-11-29 06:47:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:47:53,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2023-11-29 06:47:53,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:53,795 INFO L225 Difference]: With dead ends: 1306 [2023-11-29 06:47:53,795 INFO L226 Difference]: Without dead ends: 835 [2023-11-29 06:47:53,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 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 06:47:53,796 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 305 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:53,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 924 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 06:47:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-11-29 06:47:53,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 833. [2023-11-29 06:47:53,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 823 states have (on average 1.4872417982989063) internal successors, (1224), 828 states have internal predecessors, (1224), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 06:47:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1230 transitions. [2023-11-29 06:47:53,817 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1230 transitions. Word has length 81 [2023-11-29 06:47:53,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:53,817 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1230 transitions. [2023-11-29 06:47:53,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 06:47:53,818 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1230 transitions. [2023-11-29 06:47:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-29 06:47:53,819 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:53,819 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 06:47:53,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 06:47:54,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:54,020 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:54,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:54,020 INFO L85 PathProgramCache]: Analyzing trace with hash -99410979, now seen corresponding path program 1 times [2023-11-29 06:47:54,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:54,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574260692] [2023-11-29 06:47:54,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:54,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:54,063 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:54,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287216899] [2023-11-29 06:47:54,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:54,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:54,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:54,064 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:54,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 06:47:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:54,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:47:54,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:54,410 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 06:47:54,633 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 06:47:54,633 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:54,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:54,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574260692] [2023-11-29 06:47:54,634 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:54,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287216899] [2023-11-29 06:47:54,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287216899] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:54,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:54,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:47:54,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706487040] [2023-11-29 06:47:54,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:54,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:47:54,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:54,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:47:54,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:47:54,636 INFO L87 Difference]: Start difference. First operand 833 states and 1230 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 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 06:47:54,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:54,786 INFO L93 Difference]: Finished difference Result 898 states and 1315 transitions. [2023-11-29 06:47:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:47:54,786 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 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 06:47:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:54,792 INFO L225 Difference]: With dead ends: 898 [2023-11-29 06:47:54,792 INFO L226 Difference]: Without dead ends: 897 [2023-11-29 06:47:54,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 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 06:47:54,793 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 376 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:54,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1829 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:54,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2023-11-29 06:47:54,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 895. [2023-11-29 06:47:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 881 states have (on average 1.4755959137343928) internal successors, (1300), 886 states have internal predecessors, (1300), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:47:54,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1312 transitions. [2023-11-29 06:47:54,825 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1312 transitions. Word has length 94 [2023-11-29 06:47:54,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:54,826 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1312 transitions. [2023-11-29 06:47:54,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 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 06:47:54,826 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1312 transitions. [2023-11-29 06:47:54,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-29 06:47:54,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:54,828 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, 1] [2023-11-29 06:47:54,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 06:47:55,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 06:47:55,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:55,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:55,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1213227742, now seen corresponding path program 1 times [2023-11-29 06:47:55,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:55,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551509591] [2023-11-29 06:47:55,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:55,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:55,080 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:55,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [996944299] [2023-11-29 06:47:55,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:55,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:55,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:55,081 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:55,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 06:47:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:55,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 06:47:55,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:55,440 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 06:47:55,658 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 06:47:55,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:55,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:55,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551509591] [2023-11-29 06:47:55,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:55,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996944299] [2023-11-29 06:47:55,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996944299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:55,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:55,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:47:55,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398597057] [2023-11-29 06:47:55,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:55,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:47:55,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:55,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:47:55,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:47:55,661 INFO L87 Difference]: Start difference. First operand 895 states and 1312 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 06:47:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:55,801 INFO L93 Difference]: Finished difference Result 897 states and 1314 transitions. [2023-11-29 06:47:55,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:47:55,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 95 [2023-11-29 06:47:55,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:55,807 INFO L225 Difference]: With dead ends: 897 [2023-11-29 06:47:55,807 INFO L226 Difference]: Without dead ends: 896 [2023-11-29 06:47:55,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 88 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 06:47:55,809 INFO L413 NwaCegarLoop]: 457 mSDtfsCounter, 746 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:55,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1375 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:55,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-11-29 06:47:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2023-11-29 06:47:55,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 882 states have (on average 1.4750566893424035) internal successors, (1301), 887 states have internal predecessors, (1301), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:47:55,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1313 transitions. [2023-11-29 06:47:55,843 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1313 transitions. Word has length 95 [2023-11-29 06:47:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:55,844 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1313 transitions. [2023-11-29 06:47:55,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 06:47:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1313 transitions. [2023-11-29 06:47:55,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-29 06:47:55,846 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:55,846 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 06:47:55,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 06:47:56,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:56,047 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:56,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:56,047 INFO L85 PathProgramCache]: Analyzing trace with hash 597304018, now seen corresponding path program 1 times [2023-11-29 06:47:56,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:56,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912899928] [2023-11-29 06:47:56,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:56,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:56,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:56,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [821304335] [2023-11-29 06:47:56,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:56,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:56,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:56,101 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:56,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 06:47:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:57,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 06:47:57,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:57,216 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 06:47:57,216 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:57,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:57,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912899928] [2023-11-29 06:47:57,216 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:57,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821304335] [2023-11-29 06:47:57,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821304335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:57,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:57,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 06:47:57,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492406153] [2023-11-29 06:47:57,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:57,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 06:47:57,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:57,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 06:47:57,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:47:57,218 INFO L87 Difference]: Start difference. First operand 896 states and 1313 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 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 06:47:57,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:57,530 INFO L93 Difference]: Finished difference Result 1694 states and 2467 transitions. [2023-11-29 06:47:57,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 06:47:57,530 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 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 06:47:57,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:57,536 INFO L225 Difference]: With dead ends: 1694 [2023-11-29 06:47:57,536 INFO L226 Difference]: Without dead ends: 994 [2023-11-29 06:47:57,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:47:57,538 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 27 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:57,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1677 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 06:47:57,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-29 06:47:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 976. [2023-11-29 06:47:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 962 states have (on average 1.4521829521829521) internal successors, (1397), 967 states have internal predecessors, (1397), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 06:47:57,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1409 transitions. [2023-11-29 06:47:57,582 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1409 transitions. Word has length 100 [2023-11-29 06:47:57,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:57,582 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1409 transitions. [2023-11-29 06:47:57,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 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 06:47:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1409 transitions. [2023-11-29 06:47:57,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-29 06:47:57,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:57,584 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 06:47:57,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 06:47:57,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 06:47:57,786 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:57,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:57,787 INFO L85 PathProgramCache]: Analyzing trace with hash -680364308, now seen corresponding path program 1 times [2023-11-29 06:47:57,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:57,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942427257] [2023-11-29 06:47:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:57,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:57,838 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:57,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [790202995] [2023-11-29 06:47:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:57,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:57,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:57,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:57,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 06:47:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:58,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 06:47:58,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:58,675 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 06:47:58,717 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 06:47:58,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:47:58,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:47:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942427257] [2023-11-29 06:47:58,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:47:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790202995] [2023-11-29 06:47:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790202995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:47:58,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:47:58,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 06:47:58,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201884273] [2023-11-29 06:47:58,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:47:58,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:47:58,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:47:58,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:47:58,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:47:58,720 INFO L87 Difference]: Start difference. First operand 976 states and 1409 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 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 06:47:58,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:47:58,898 INFO L93 Difference]: Finished difference Result 1686 states and 2430 transitions. [2023-11-29 06:47:58,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:47:58,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 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 06:47:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:47:58,906 INFO L225 Difference]: With dead ends: 1686 [2023-11-29 06:47:58,906 INFO L226 Difference]: Without dead ends: 988 [2023-11-29 06:47:58,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 06:47:58,908 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 426 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:47:58,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 2269 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:47:58,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2023-11-29 06:47:58,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 980. [2023-11-29 06:47:58,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 980 states, 964 states have (on average 1.4533195020746887) internal successors, (1401), 971 states have internal predecessors, (1401), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 06:47:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 980 states to 980 states and 1415 transitions. [2023-11-29 06:47:58,946 INFO L78 Accepts]: Start accepts. Automaton has 980 states and 1415 transitions. Word has length 101 [2023-11-29 06:47:58,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:47:58,947 INFO L495 AbstractCegarLoop]: Abstraction has 980 states and 1415 transitions. [2023-11-29 06:47:58,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 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 06:47:58,947 INFO L276 IsEmpty]: Start isEmpty. Operand 980 states and 1415 transitions. [2023-11-29 06:47:58,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:47:58,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:47:58,949 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 06:47:58,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 06:47:59,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 06:47:59,150 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:47:59,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:47:59,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1384118882, now seen corresponding path program 1 times [2023-11-29 06:47:59,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:47:59,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428863196] [2023-11-29 06:47:59,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:59,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:47:59,191 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:47:59,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172661697] [2023-11-29 06:47:59,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:47:59,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:47:59,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:47:59,192 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:47:59,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 06:47:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:47:59,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-29 06:47:59,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:47:59,573 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 06:47:59,595 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 06:47:59,617 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 06:47:59,968 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 06:47:59,968 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 06:48:00,114 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:48:00,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:48:00,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:00,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428863196] [2023-11-29 06:48:00,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:48:00,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172661697] [2023-11-29 06:48:00,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172661697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:00,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:00,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 06:48:00,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542771026] [2023-11-29 06:48:00,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:00,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 06:48:00,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:00,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 06:48:00,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 06:48:00,117 INFO L87 Difference]: Start difference. First operand 980 states and 1415 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 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 06:48:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:48:02,362 INFO L93 Difference]: Finished difference Result 1742 states and 2511 transitions. [2023-11-29 06:48:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 06:48:02,363 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 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 103 [2023-11-29 06:48:02,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:48:02,368 INFO L225 Difference]: With dead ends: 1742 [2023-11-29 06:48:02,368 INFO L226 Difference]: Without dead ends: 994 [2023-11-29 06:48:02,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 06:48:02,370 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 707 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 3250 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 06:48:02,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 3250 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 06:48:02,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2023-11-29 06:48:02,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 987. [2023-11-29 06:48:02,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 971 states have (on average 1.4500514933058701) internal successors, (1408), 978 states have internal predecessors, (1408), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 06:48:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1422 transitions. [2023-11-29 06:48:02,406 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1422 transitions. Word has length 103 [2023-11-29 06:48:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:48:02,406 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1422 transitions. [2023-11-29 06:48:02,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 12 states have internal predecessors, (96), 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 06:48:02,407 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1422 transitions. [2023-11-29 06:48:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-29 06:48:02,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:02,409 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 06:48:02,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 06:48:02,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:02,609 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:48:02,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:02,610 INFO L85 PathProgramCache]: Analyzing trace with hash -693218016, now seen corresponding path program 1 times [2023-11-29 06:48:02,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:02,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013217474] [2023-11-29 06:48:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:02,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:02,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:48:02,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302026566] [2023-11-29 06:48:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:02,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:02,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:02,665 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:48:02,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 06:48:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:03,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 06:48:03,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:48:03,123 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 06:48:03,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 06:48:03,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:03,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013217474] [2023-11-29 06:48:03,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 06:48:03,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302026566] [2023-11-29 06:48:03,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302026566] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:03,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:03,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:48:03,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340556626] [2023-11-29 06:48:03,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:03,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:48:03,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:03,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:48:03,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:48:03,127 INFO L87 Difference]: Start difference. First operand 987 states and 1422 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 06:48:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 06:48:03,252 INFO L93 Difference]: Finished difference Result 1890 states and 2762 transitions. [2023-11-29 06:48:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:48:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 103 [2023-11-29 06:48:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 06:48:03,259 INFO L225 Difference]: With dead ends: 1890 [2023-11-29 06:48:03,259 INFO L226 Difference]: Without dead ends: 1127 [2023-11-29 06:48:03,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 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 06:48:03,261 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 141 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 06:48:03,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 1806 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 06:48:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-29 06:48:03,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 973. [2023-11-29 06:48:03,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 957 states have (on average 1.4472309299895507) internal successors, (1385), 964 states have internal predecessors, (1385), 6 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-11-29 06:48:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1399 transitions. [2023-11-29 06:48:03,295 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1399 transitions. Word has length 103 [2023-11-29 06:48:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 06:48:03,295 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1399 transitions. [2023-11-29 06:48:03,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 06:48:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1399 transitions. [2023-11-29 06:48:03,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-29 06:48:03,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 06:48:03,298 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, 1] [2023-11-29 06:48:03,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 06:48:03,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:03,498 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 06:48:03,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:03,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1902787427, now seen corresponding path program 1 times [2023-11-29 06:48:03,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:03,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821416712] [2023-11-29 06:48:03,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:03,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:03,537 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 06:48:03,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293469259] [2023-11-29 06:48:03,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:03,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 06:48:03,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:03,539 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 06:48:03,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858d3635-08f6-4b18-8fae-62b4d0e33ec0/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 06:48:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:03,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 130 conjunts are in the unsatisfiable core [2023-11-29 06:48:03,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 06:48:03,926 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 06:48:03,947 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 06:48:03,976 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 06:48:04,022 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 06:48:04,536 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 06:48:04,544 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 06:48:04,566 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 06:48:04,566 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 06:48:04,662 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 06:48:04,666 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 06:48:04,879 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 06:48:04,879 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 06:48:04,885 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 06:49:43,189 INFO L224 Elim1Store]: Index analysis took 1605 ms