./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.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_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:43,671 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:43,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:43:43,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:43,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:43,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:43,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:43,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:43,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:43:43,869 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:43:43,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:43,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:43,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:43,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:43,874 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:43,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:43,875 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:43,875 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:43,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:43,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:43,877 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:43,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:43,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:43,878 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:43,878 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:43:43,879 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:43:43,879 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:43,880 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:43,880 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:43,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:43,882 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:43,883 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:43:43,883 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:43,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:43,884 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:43,884 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:43,884 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:43,884 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:43,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:43,885 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:43,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:43,886 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:43,886 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:43,886 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:43,887 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_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dd09ebbd7004650762949ef44f5f810b259dfe76e04f61193dc727167eb435 [2023-11-26 11:43:44,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:44,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:44,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:44,188 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:44,189 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:44,190 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i [2023-11-26 11:43:47,302 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:47,728 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:47,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-3.i [2023-11-26 11:43:47,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/data/847b9cf8a/202956e8cbfa4abe9fb375f51de86842/FLAGe4e9d3c1d [2023-11-26 11:43:47,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/data/847b9cf8a/202956e8cbfa4abe9fb375f51de86842 [2023-11-26 11:43:47,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:47,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:47,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:47,789 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:47,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:47,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,796 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af4c4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:47, skipping insertion in model container [2023-11-26 11:43:47,796 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:47" (1/1) ... [2023-11-26 11:43:47,890 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:48,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,637 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:48,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,855 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:48,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48 WrapperNode [2023-11-26 11:43:48,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:48,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:48,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:48,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,025 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1777 [2023-11-26 11:43:49,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:49,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:49,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:49,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:49,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,374 INFO L175 MemorySlicer]: Split 413 memory accesses to 4 slices as follows [2, 5, 5, 401]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 100 writes are split as follows [0, 1, 1, 98]. [2023-11-26 11:43:49,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,375 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:49,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:49,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:49,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:49,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:49,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:49,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:43:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:43:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:43:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:43:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:43:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:43:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:43:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:43:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-26 11:43:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-26 11:43:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-26 11:43:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-26 11:43:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-26 11:43:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-26 11:43:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-26 11:43:49,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-26 11:43:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:43:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:43:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:43:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:43:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:43:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:43:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:43:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:43:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:43:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:43:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:43:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:43:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:43:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:49,907 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:49,910 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:51,842 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:51,911 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:51,911 INFO L309 CfgBuilder]: Removed 77 assume(true) statements. [2023-11-26 11:43:51,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:51 BoogieIcfgContainer [2023-11-26 11:43:51,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:51,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:51,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:51,920 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:51,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:47" (1/3) ... [2023-11-26 11:43:51,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc57d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:51, skipping insertion in model container [2023-11-26 11:43:51,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (2/3) ... [2023-11-26 11:43:51,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc57d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:51, skipping insertion in model container [2023-11-26 11:43:51,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:51" (3/3) ... [2023-11-26 11:43:51,924 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test4-3.i [2023-11-26 11:43:51,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:51,946 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 11:43:52,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:52,066 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;@1662450b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:52,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 11:43:52,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 423 states, 411 states have (on average 1.6958637469586375) internal successors, (697), 415 states have internal predecessors, (697), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:52,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:43:52,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:52,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-26 11:43:52,085 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:52,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:52,094 INFO L85 PathProgramCache]: Analyzing trace with hash 202106429, now seen corresponding path program 1 times [2023-11-26 11:43:52,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:52,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366737630] [2023-11-26 11:43:52,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:52,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:52,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366737630] [2023-11-26 11:43:52,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366737630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:52,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:52,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:52,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680318959] [2023-11-26 11:43:52,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:52,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:43:52,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:52,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:43:52,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:43:52,386 INFO L87 Difference]: Start difference. First operand has 423 states, 411 states have (on average 1.6958637469586375) internal successors, (697), 415 states have internal predecessors, (697), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:52,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:52,517 INFO L93 Difference]: Finished difference Result 842 states and 1414 transitions. [2023-11-26 11:43:52,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:43:52,520 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-26 11:43:52,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:52,539 INFO L225 Difference]: With dead ends: 842 [2023-11-26 11:43:52,539 INFO L226 Difference]: Without dead ends: 352 [2023-11-26 11:43:52,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:43:52,552 INFO L413 NwaCegarLoop]: 616 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, 616 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 [2023-11-26 11:43:52,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 616 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:52,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-26 11:43:52,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-11-26 11:43:52,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 342 states have (on average 1.5029239766081872) internal successors, (514), 344 states have internal predecessors, (514), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:52,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 526 transitions. [2023-11-26 11:43:52,623 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 526 transitions. Word has length 6 [2023-11-26 11:43:52,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:52,624 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 526 transitions. [2023-11-26 11:43:52,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:52,624 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 526 transitions. [2023-11-26 11:43:52,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:43:52,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:52,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:52,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:43:52,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:52,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:52,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1970391673, now seen corresponding path program 1 times [2023-11-26 11:43:52,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:52,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097630875] [2023-11-26 11:43:52,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:52,659 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:52,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [378869340] [2023-11-26 11:43:52,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:52,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:52,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:52,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:43:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,976 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:52,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:53,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:53,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:53,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:53,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097630875] [2023-11-26 11:43:53,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:53,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378869340] [2023-11-26 11:43:53,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378869340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:53,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:53,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440741230] [2023-11-26 11:43:53,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:53,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:53,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:53,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:53,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:53,019 INFO L87 Difference]: Start difference. First operand 352 states and 526 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:53,114 INFO L93 Difference]: Finished difference Result 699 states and 1047 transitions. [2023-11-26 11:43:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:53,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-26 11:43:53,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:53,122 INFO L225 Difference]: With dead ends: 699 [2023-11-26 11:43:53,122 INFO L226 Difference]: Without dead ends: 698 [2023-11-26 11:43:53,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:53,124 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 503 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:53,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1120 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-11-26 11:43:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 357. [2023-11-26 11:43:53,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 347 states have (on average 1.4956772334293948) internal successors, (519), 349 states have internal predecessors, (519), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 531 transitions. [2023-11-26 11:43:53,155 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 531 transitions. Word has length 7 [2023-11-26 11:43:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:53,155 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 531 transitions. [2023-11-26 11:43:53,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 531 transitions. [2023-11-26 11:43:53,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-26 11:43:53,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:53,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:53,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:53,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 11:43:53,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:53,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 282267285, now seen corresponding path program 1 times [2023-11-26 11:43:53,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:53,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313843052] [2023-11-26 11:43:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:53,521 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:53,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757898325] [2023-11-26 11:43:53,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:53,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:53,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:53,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:53,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:43:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:54,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:54,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:54,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:54,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313843052] [2023-11-26 11:43:54,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:54,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757898325] [2023-11-26 11:43:54,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757898325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:43:54,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009171314] [2023-11-26 11:43:54,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,070 INFO L87 Difference]: Start difference. First operand 357 states and 531 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:54,166 INFO L93 Difference]: Finished difference Result 728 states and 1086 transitions. [2023-11-26 11:43:54,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2023-11-26 11:43:54,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:54,170 INFO L225 Difference]: With dead ends: 728 [2023-11-26 11:43:54,170 INFO L226 Difference]: Without dead ends: 378 [2023-11-26 11:43:54,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,173 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 9 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:54,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 994 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:43:54,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-26 11:43:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2023-11-26 11:43:54,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 367 states have (on average 1.4686648501362398) internal successors, (539), 369 states have internal predecessors, (539), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:54,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 551 transitions. [2023-11-26 11:43:54,191 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 551 transitions. Word has length 151 [2023-11-26 11:43:54,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:54,192 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 551 transitions. [2023-11-26 11:43:54,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:54,192 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 551 transitions. [2023-11-26 11:43:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-26 11:43:54,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:54,196 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:54,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:54,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:54,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:54,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1230319251, now seen corresponding path program 1 times [2023-11-26 11:43:54,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109073046] [2023-11-26 11:43:54,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [259795199] [2023-11-26 11:43:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:54,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:54,538 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:54,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:43:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:55,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:55,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:55,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:55,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109073046] [2023-11-26 11:43:55,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:55,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259795199] [2023-11-26 11:43:55,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259795199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:55,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:55,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:43:55,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801153240] [2023-11-26 11:43:55,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:55,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:55,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:55,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:55,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:55,044 INFO L87 Difference]: Start difference. First operand 377 states and 551 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:55,152 INFO L93 Difference]: Finished difference Result 768 states and 1126 transitions. [2023-11-26 11:43:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:55,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2023-11-26 11:43:55,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:55,156 INFO L225 Difference]: With dead ends: 768 [2023-11-26 11:43:55,156 INFO L226 Difference]: Without dead ends: 398 [2023-11-26 11:43:55,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:55,158 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 10 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:55,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 994 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:43:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-26 11:43:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2023-11-26 11:43:55,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 387 states have (on average 1.4444444444444444) internal successors, (559), 389 states have internal predecessors, (559), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 571 transitions. [2023-11-26 11:43:55,175 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 571 transitions. Word has length 151 [2023-11-26 11:43:55,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:55,176 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 571 transitions. [2023-11-26 11:43:55,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 571 transitions. [2023-11-26 11:43:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-26 11:43:55,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:55,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:55,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:55,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:55,388 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:55,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash 423946647, now seen corresponding path program 1 times [2023-11-26 11:43:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:55,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682849175] [2023-11-26 11:43:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:55,494 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:55,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656514543] [2023-11-26 11:43:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:55,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:55,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:55,508 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:55,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:43:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:56,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:56,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:56,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:56,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:56,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682849175] [2023-11-26 11:43:56,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:56,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656514543] [2023-11-26 11:43:56,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656514543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:56,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:56,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:43:56,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556983403] [2023-11-26 11:43:56,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:56,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:43:56,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:56,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:43:56,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:43:56,058 INFO L87 Difference]: Start difference. First operand 397 states and 571 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:56,195 INFO L93 Difference]: Finished difference Result 774 states and 1122 transitions. [2023-11-26 11:43:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:43:56,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 151 [2023-11-26 11:43:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:56,199 INFO L225 Difference]: With dead ends: 774 [2023-11-26 11:43:56,199 INFO L226 Difference]: Without dead ends: 384 [2023-11-26 11:43:56,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:56,201 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 165 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:56,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1339 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:43:56,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-26 11:43:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2023-11-26 11:43:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 373 states have (on average 1.4423592493297588) internal successors, (538), 375 states have internal predecessors, (538), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:56,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 550 transitions. [2023-11-26 11:43:56,216 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 550 transitions. Word has length 151 [2023-11-26 11:43:56,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:56,216 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 550 transitions. [2023-11-26 11:43:56,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:56,217 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 550 transitions. [2023-11-26 11:43:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-26 11:43:56,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:56,220 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:56,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:56,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:56,429 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:56,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:56,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1947026505, now seen corresponding path program 1 times [2023-11-26 11:43:56,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:56,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111677109] [2023-11-26 11:43:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:56,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:56,527 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:56,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1503515594] [2023-11-26 11:43:56,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:56,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:56,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:56,530 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:56,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:43:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:57,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:57,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:57,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:57,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:57,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:57,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111677109] [2023-11-26 11:43:57,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:57,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503515594] [2023-11-26 11:43:57,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503515594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:57,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:57,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:43:57,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800572459] [2023-11-26 11:43:57,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:57,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:43:57,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:57,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:43:57,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:43:57,073 INFO L87 Difference]: Start difference. First operand 383 states and 550 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:57,185 INFO L93 Difference]: Finished difference Result 746 states and 1080 transitions. [2023-11-26 11:43:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:43:57,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 151 [2023-11-26 11:43:57,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:57,189 INFO L225 Difference]: With dead ends: 746 [2023-11-26 11:43:57,189 INFO L226 Difference]: Without dead ends: 370 [2023-11-26 11:43:57,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:57,191 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 165 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:57,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1318 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:43:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-26 11:43:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2023-11-26 11:43:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 359 states have (on average 1.4401114206128134) internal successors, (517), 361 states have internal predecessors, (517), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 529 transitions. [2023-11-26 11:43:57,207 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 529 transitions. Word has length 151 [2023-11-26 11:43:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:57,207 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 529 transitions. [2023-11-26 11:43:57,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:57,208 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 529 transitions. [2023-11-26 11:43:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-26 11:43:57,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:57,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:57,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:57,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 11:43:57,419 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:57,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:57,420 INFO L85 PathProgramCache]: Analyzing trace with hash 63794519, now seen corresponding path program 1 times [2023-11-26 11:43:57,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:57,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462108052] [2023-11-26 11:43:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:57,510 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286841907] [2023-11-26 11:43:57,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:57,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:57,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:57,512 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:57,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:43:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:58,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:58,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:58,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:58,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462108052] [2023-11-26 11:43:58,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:58,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286841907] [2023-11-26 11:43:58,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286841907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:58,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:58,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:43:58,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771032451] [2023-11-26 11:43:58,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:58,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:43:58,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:58,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:43:58,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:43:58,393 INFO L87 Difference]: Start difference. First operand 369 states and 529 transitions. Second operand has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:58,446 INFO L93 Difference]: Finished difference Result 369 states and 529 transitions. [2023-11-26 11:43:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:43:58,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 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 151 [2023-11-26 11:43:58,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:58,450 INFO L225 Difference]: With dead ends: 369 [2023-11-26 11:43:58,450 INFO L226 Difference]: Without dead ends: 368 [2023-11-26 11:43:58,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:58,452 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 348 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:58,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1008 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-26 11:43:58,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-11-26 11:43:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 359 states have (on average 1.4373259052924792) internal successors, (516), 360 states have internal predecessors, (516), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 11:43:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 528 transitions. [2023-11-26 11:43:58,470 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 528 transitions. Word has length 151 [2023-11-26 11:43:58,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:58,470 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 528 transitions. [2023-11-26 11:43:58,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 528 transitions. [2023-11-26 11:43:58,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-26 11:43:58,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:58,474 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:58,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:43:58,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:43:58,682 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:58,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1977631583, now seen corresponding path program 1 times [2023-11-26 11:43:58,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:58,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624522113] [2023-11-26 11:43:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:58,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:58,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:43:58,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [706664998] [2023-11-26 11:43:58,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:58,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:43:58,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:58,766 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:43:58,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:43:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:59,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:43:59,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:43:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:59,582 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:43:59,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:59,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624522113] [2023-11-26 11:43:59,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:43:59,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706664998] [2023-11-26 11:43:59,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706664998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:59,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:59,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:43:59,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620697799] [2023-11-26 11:43:59,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:59,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:43:59,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:59,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:43:59,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:43:59,586 INFO L87 Difference]: Start difference. First operand 368 states and 528 transitions. Second operand has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:43:59,670 INFO L93 Difference]: Finished difference Result 720 states and 1040 transitions. [2023-11-26 11:43:59,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:43:59,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 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 152 [2023-11-26 11:43:59,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:43:59,676 INFO L225 Difference]: With dead ends: 720 [2023-11-26 11:43:59,676 INFO L226 Difference]: Without dead ends: 719 [2023-11-26 11:43:59,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:43:59,678 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 344 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:43:59,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1664 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:43:59,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-26 11:43:59,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2023-11-26 11:43:59,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 704 states have (on average 1.4417613636363635) internal successors, (1015), 705 states have internal predecessors, (1015), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:43:59,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1039 transitions. [2023-11-26 11:43:59,713 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1039 transitions. Word has length 152 [2023-11-26 11:43:59,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:43:59,714 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1039 transitions. [2023-11-26 11:43:59,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:43:59,714 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1039 transitions. [2023-11-26 11:43:59,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-26 11:43:59,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:43:59,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:43:59,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-26 11:43:59,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 11:43:59,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:43:59,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:59,926 INFO L85 PathProgramCache]: Analyzing trace with hash 827432530, now seen corresponding path program 1 times [2023-11-26 11:43:59,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:59,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673291755] [2023-11-26 11:43:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:00,005 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:00,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807135745] [2023-11-26 11:44:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:00,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:00,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:00,007 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:00,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:44:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:00,570 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:44:00,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:01,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:01,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:01,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673291755] [2023-11-26 11:44:01,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:01,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807135745] [2023-11-26 11:44:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807135745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674660974] [2023-11-26 11:44:01,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:01,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:01,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:01,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:01,155 INFO L87 Difference]: Start difference. First operand 719 states and 1039 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:01,234 INFO L93 Difference]: Finished difference Result 1131 states and 1629 transitions. [2023-11-26 11:44:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:01,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 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 157 [2023-11-26 11:44:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:01,240 INFO L225 Difference]: With dead ends: 1131 [2023-11-26 11:44:01,240 INFO L226 Difference]: Without dead ends: 717 [2023-11-26 11:44:01,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:01,242 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 294 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:01,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1001 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:44:01,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-26 11:44:01,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2023-11-26 11:44:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 702 states have (on average 1.4415954415954415) internal successors, (1012), 703 states have internal predecessors, (1012), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:44:01,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1036 transitions. [2023-11-26 11:44:01,271 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1036 transitions. Word has length 157 [2023-11-26 11:44:01,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:01,272 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1036 transitions. [2023-11-26 11:44:01,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:44:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1036 transitions. [2023-11-26 11:44:01,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-26 11:44:01,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:01,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:01,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:01,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-26 11:44:01,484 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:44:01,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:01,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1825611538, now seen corresponding path program 1 times [2023-11-26 11:44:01,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:01,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430457938] [2023-11-26 11:44:01,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:01,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:01,592 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:01,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415212036] [2023-11-26 11:44:01,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:01,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:01,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:01,596 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:01,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:44:02,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:02,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:44:02,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-26 11:44:02,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:02,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430457938] [2023-11-26 11:44:02,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415212036] [2023-11-26 11:44:02,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415212036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:02,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:02,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:02,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645635111] [2023-11-26 11:44:02,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:02,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:02,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:02,516 INFO L87 Difference]: Start difference. First operand 717 states and 1036 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-11-26 11:44:02,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:02,638 INFO L93 Difference]: Finished difference Result 1301 states and 1877 transitions. [2023-11-26 11:44:02,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:02,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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 170 [2023-11-26 11:44:02,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:02,645 INFO L225 Difference]: With dead ends: 1301 [2023-11-26 11:44:02,645 INFO L226 Difference]: Without dead ends: 715 [2023-11-26 11:44:02,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:02,648 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 123 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:02,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1001 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:44:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-11-26 11:44:02,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-11-26 11:44:02,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 700 states have (on average 1.4414285714285715) internal successors, (1009), 701 states have internal predecessors, (1009), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 11:44:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1033 transitions. [2023-11-26 11:44:02,683 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1033 transitions. Word has length 170 [2023-11-26 11:44:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 1033 transitions. [2023-11-26 11:44:02,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 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) [2023-11-26 11:44:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1033 transitions. [2023-11-26 11:44:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-26 11:44:02,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:02,688 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:02,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:02,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:44:02,898 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:44:02,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1010177768, now seen corresponding path program 1 times [2023-11-26 11:44:02,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:02,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876137714] [2023-11-26 11:44:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:02,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:03,011 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:03,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264846856] [2023-11-26 11:44:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:03,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:03,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:03,014 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:03,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:44:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:04,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-26 11:44:04,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-26 11:44:04,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:04,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:04,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876137714] [2023-11-26 11:44:04,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:04,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264846856] [2023-11-26 11:44:04,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264846856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:04,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:04,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:04,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717718124] [2023-11-26 11:44:04,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:04,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:04,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:04,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:04,252 INFO L87 Difference]: Start difference. First operand 715 states and 1033 transitions. Second operand has 5 states, 4 states have (on average 42.75) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:44:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:04,427 INFO L93 Difference]: Finished difference Result 1307 states and 1895 transitions. [2023-11-26 11:44:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:04,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 42.75) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 183 [2023-11-26 11:44:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:04,436 INFO L225 Difference]: With dead ends: 1307 [2023-11-26 11:44:04,437 INFO L226 Difference]: Without dead ends: 717 [2023-11-26 11:44:04,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:44:04,439 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 486 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:04,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1994 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:44:04,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-26 11:44:04,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2023-11-26 11:44:04,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 701 states have (on average 1.442225392296719) internal successors, (1011), 703 states have internal predecessors, (1011), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-26 11:44:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1039 transitions. [2023-11-26 11:44:04,490 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1039 transitions. Word has length 183 [2023-11-26 11:44:04,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:04,491 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1039 transitions. [2023-11-26 11:44:04,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 42.75) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:44:04,491 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1039 transitions. [2023-11-26 11:44:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-26 11:44:04,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:04,495 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:04,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:04,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:04,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:44:04,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:04,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1271224444, now seen corresponding path program 1 times [2023-11-26 11:44:04,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:04,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307693580] [2023-11-26 11:44:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:04,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:04,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:04,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32150455] [2023-11-26 11:44:04,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:04,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:04,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:04,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:04,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:44:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:05,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-26 11:44:05,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:05,864 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 [2023-11-26 11:44:05,889 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 23 treesize of output 11 [2023-11-26 11:44:06,356 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:44:06,357 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 [2023-11-26 11:44:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:44:06,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:06,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:06,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307693580] [2023-11-26 11:44:06,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:06,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32150455] [2023-11-26 11:44:06,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32150455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:06,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:06,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-26 11:44:06,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629176860] [2023-11-26 11:44:06,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:06,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:44:06,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:06,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:44:06,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:44:06,563 INFO L87 Difference]: Start difference. First operand 717 states and 1039 transitions. Second operand has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 11:44:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:11,998 INFO L93 Difference]: Finished difference Result 1392 states and 2009 transitions. [2023-11-26 11:44:11,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:44:11,999 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 187 [2023-11-26 11:44:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:12,004 INFO L225 Difference]: With dead ends: 1392 [2023-11-26 11:44:12,004 INFO L226 Difference]: Without dead ends: 758 [2023-11-26 11:44:12,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-26 11:44:12,007 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 747 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 1599 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:12,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 3896 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1599 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-26 11:44:12,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2023-11-26 11:44:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 749. [2023-11-26 11:44:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 733 states have (on average 1.4297407912687585) internal successors, (1048), 735 states have internal predecessors, (1048), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-26 11:44:12,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1076 transitions. [2023-11-26 11:44:12,046 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1076 transitions. Word has length 187 [2023-11-26 11:44:12,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:12,046 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1076 transitions. [2023-11-26 11:44:12,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.166666666666666) internal successors, (170), 12 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 11:44:12,047 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1076 transitions. [2023-11-26 11:44:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-26 11:44:12,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:12,050 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:12,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:12,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:12,269 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:44:12,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:12,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1619873666, now seen corresponding path program 1 times [2023-11-26 11:44:12,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:12,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124248154] [2023-11-26 11:44:12,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:12,371 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:12,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1647328625] [2023-11-26 11:44:12,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:12,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:12,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:12,374 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:12,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:44:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:13,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:44:13,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:44:13,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:13,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:13,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124248154] [2023-11-26 11:44:13,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:13,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647328625] [2023-11-26 11:44:13,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647328625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:13,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:13,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:13,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903136163] [2023-11-26 11:44:13,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:13,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:13,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:13,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:13,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:13,190 INFO L87 Difference]: Start difference. First operand 749 states and 1076 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 11:44:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:13,345 INFO L93 Difference]: Finished difference Result 1583 states and 2312 transitions. [2023-11-26 11:44:13,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:13,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 187 [2023-11-26 11:44:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:13,352 INFO L225 Difference]: With dead ends: 1583 [2023-11-26 11:44:13,353 INFO L226 Difference]: Without dead ends: 937 [2023-11-26 11:44:13,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:13,355 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 145 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:13,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1468 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:44:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2023-11-26 11:44:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 772. [2023-11-26 11:44:13,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 772 states, 756 states have (on average 1.4153439153439153) internal successors, (1070), 758 states have internal predecessors, (1070), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-26 11:44:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1098 transitions. [2023-11-26 11:44:13,397 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1098 transitions. Word has length 187 [2023-11-26 11:44:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:13,397 INFO L495 AbstractCegarLoop]: Abstraction has 772 states and 1098 transitions. [2023-11-26 11:44:13,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 11:44:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1098 transitions. [2023-11-26 11:44:13,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-26 11:44:13,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:13,401 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:13,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:13,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:13,612 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:44:13,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1018402933, now seen corresponding path program 1 times [2023-11-26 11:44:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141345403] [2023-11-26 11:44:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:13,731 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:13,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450831076] [2023-11-26 11:44:13,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:13,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:13,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:13,737 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:13,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:44:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:14,810 INFO L262 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-26 11:44:14,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:14,853 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 [2023-11-26 11:44:14,883 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 23 treesize of output 11 [2023-11-26 11:44:15,408 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:44:15,408 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 [2023-11-26 11:44:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-26 11:44:15,829 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:44:15,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141345403] [2023-11-26 11:44:15,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:44:15,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450831076] [2023-11-26 11:44:15,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450831076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:15,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:15,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-26 11:44:15,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407765076] [2023-11-26 11:44:15,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:15,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:44:15,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:15,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:44:15,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:44:15,833 INFO L87 Difference]: Start difference. First operand 772 states and 1098 transitions. Second operand has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 11:44:20,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:44:20,364 INFO L93 Difference]: Finished difference Result 1438 states and 2057 transitions. [2023-11-26 11:44:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 11:44:20,365 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2023-11-26 11:44:20,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:44:20,370 INFO L225 Difference]: With dead ends: 1438 [2023-11-26 11:44:20,371 INFO L226 Difference]: Without dead ends: 781 [2023-11-26 11:44:20,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2023-11-26 11:44:20,373 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 1269 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 3243 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:44:20,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 3243 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-26 11:44:20,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2023-11-26 11:44:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 774. [2023-11-26 11:44:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 758 states have (on average 1.4142480211081794) internal successors, (1072), 760 states have internal predecessors, (1072), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-26 11:44:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1100 transitions. [2023-11-26 11:44:20,412 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1100 transitions. Word has length 188 [2023-11-26 11:44:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:44:20,412 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1100 transitions. [2023-11-26 11:44:20,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-26 11:44:20,413 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1100 transitions. [2023-11-26 11:44:20,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-26 11:44:20,416 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:44:20,417 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:20,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:44:20,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:20,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 11:44:20,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:20,630 INFO L85 PathProgramCache]: Analyzing trace with hash -188895307, now seen corresponding path program 1 times [2023-11-26 11:44:20,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:20,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445244563] [2023-11-26 11:44:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:20,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:20,746 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:44:20,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139274984] [2023-11-26 11:44:20,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:20,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:44:20,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:44:20,749 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:44:20,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cca0726e-4f3a-471a-9ebe-323202a255ac/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 11:44:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:22,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 124 conjunts are in the unsatisfiable core [2023-11-26 11:44:22,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:44:22,293 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 [2023-11-26 11:44:22,334 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 [2023-11-26 11:44:22,381 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 23 treesize of output 11 [2023-11-26 11:44:22,386 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 [2023-11-26 11:44:23,028 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 [2023-11-26 11:44:23,034 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 [2023-11-26 11:44:23,056 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-26 11:44:23,056 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 [2023-11-26 11:44:23,163 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 [2023-11-26 11:44:23,453 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:44:23,453 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 [2023-11-26 11:44:23,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-26 11:44:29,377 INFO L224 Elim1Store]: Index analysis took 372 ms