./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU --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 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:58:33,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:58:33,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:58:33,813 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:58:33,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:58:33,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:58:33,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:58:33,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:58:33,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:58:33,841 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:58:33,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:58:33,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:58:33,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:58:33,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:58:33,844 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:58:33,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:58:33,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:58:33,846 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:58:33,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:58:33,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:58:33,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:58:33,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:58:33,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:58:33,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:58:33,855 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:58:33,855 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:58:33,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:58:33,856 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:58:33,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:58:33,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:58:33,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:58:33,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:58:33,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:58:33,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:58:33,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:33,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:58:33,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:58:33,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:58:33,862 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:58:33,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:58:33,862 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:58:33,863 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:58:33,863 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:58:33,863 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:58:33,864 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_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2024-10-31 21:58:34,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:58:34,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:58:34,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:58:34,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:58:34,251 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:58:34,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i Unable to find full path for "g++" [2024-10-31 21:58:36,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:58:36,729 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:58:36,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2024-10-31 21:58:36,756 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/data/030d2fb44/345064f38df648a9bd0f8f5c18dd8978/FLAGd241a3f58 [2024-10-31 21:58:36,780 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/data/030d2fb44/345064f38df648a9bd0f8f5c18dd8978 [2024-10-31 21:58:36,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:58:36,786 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:58:36,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:36,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:58:36,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:58:36,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:36" (1/1) ... [2024-10-31 21:58:36,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bcb4a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:36, skipping insertion in model container [2024-10-31 21:58:36,798 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:58:36" (1/1) ... [2024-10-31 21:58:36,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:58:37,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:37,646 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:58:37,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:58:37,926 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:58:37,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37 WrapperNode [2024-10-31 21:58:37,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:58:37,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:37,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:58:37,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:58:37,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:37,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,085 INFO L138 Inliner]: procedures = 177, calls = 279, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1463 [2024-10-31 21:58:38,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:58:38,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:58:38,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:58:38,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:58:38,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,227 INFO L175 MemorySlicer]: Split 255 memory accesses to 3 slices as follows [2, 219, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-10-31 21:58:38,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:58:38,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:58:38,309 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:58:38,309 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:58:38,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (1/1) ... [2024-10-31 21:58:38,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:58:38,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:38,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:58:38,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:58:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-31 21:58:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-31 21:58:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 21:58:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 21:58:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 21:58:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 21:58:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 21:58:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 21:58:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 21:58:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 21:58:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 21:58:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 21:58:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-31 21:58:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 21:58:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 21:58:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-31 21:58:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 21:58:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:58:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 21:58:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 21:58:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 21:58:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 21:58:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 21:58:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 21:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 21:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 21:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 21:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 21:58:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:58:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:58:38,653 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:58:38,655 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:58:40,715 INFO L? ?]: Removed 333 outVars from TransFormulas that were not future-live. [2024-10-31 21:58:40,715 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:58:40,746 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:58:40,746 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-31 21:58:40,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:40 BoogieIcfgContainer [2024-10-31 21:58:40,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:58:40,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:58:40,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:58:40,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:58:40,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:58:36" (1/3) ... [2024-10-31 21:58:40,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a4485b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:40, skipping insertion in model container [2024-10-31 21:58:40,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:58:37" (2/3) ... [2024-10-31 21:58:40,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a4485b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:58:40, skipping insertion in model container [2024-10-31 21:58:40,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:58:40" (3/3) ... [2024-10-31 21:58:40,767 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2024-10-31 21:58:40,787 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:58:40,787 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-31 21:58:40,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:58:40,878 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@e2bdde3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:58:40,878 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-31 21:58:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 429 states, 407 states have (on average 1.628992628992629) internal successors, (663), 422 states have internal predecessors, (663), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:58:40,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 21:58:40,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:40,892 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:40,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:40,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash 170881670, now seen corresponding path program 1 times [2024-10-31 21:58:40,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:40,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273896578] [2024-10-31 21:58:40,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:40,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:41,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273896578] [2024-10-31 21:58:41,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273896578] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:58:41,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739084997] [2024-10-31 21:58:41,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:41,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 21:58:41,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:41,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 21:58:41,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 21:58:41,214 INFO L87 Difference]: Start difference. First operand has 429 states, 407 states have (on average 1.628992628992629) internal successors, (663), 422 states have internal predecessors, (663), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:41,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:41,344 INFO L93 Difference]: Finished difference Result 854 states and 1368 transitions. [2024-10-31 21:58:41,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 21:58:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-31 21:58:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:41,367 INFO L225 Difference]: With dead ends: 854 [2024-10-31 21:58:41,367 INFO L226 Difference]: Without dead ends: 420 [2024-10-31 21:58:41,374 INFO L431 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 [2024-10-31 21:58:41,382 INFO L432 NwaCegarLoop]: 611 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:41,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:58:41,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-31 21:58:41,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-10-31 21:58:41,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 402 states have (on average 1.4601990049751243) internal successors, (587), 414 states have internal predecessors, (587), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:41,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 603 transitions. [2024-10-31 21:58:41,481 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 603 transitions. Word has length 7 [2024-10-31 21:58:41,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:41,482 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 603 transitions. [2024-10-31 21:58:41,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 603 transitions. [2024-10-31 21:58:41,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 21:58:41,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:41,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:41,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:58:41,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:41,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash 170883592, now seen corresponding path program 1 times [2024-10-31 21:58:41,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:41,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504849337] [2024-10-31 21:58:41,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:41,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:58:41,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903169362] [2024-10-31 21:58:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:41,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:41,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:41,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:41,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:58:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:41,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:58:41,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:41,896 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 [2024-10-31 21:58:41,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:41,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:58:41,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:41,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504849337] [2024-10-31 21:58:41,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:58:41,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903169362] [2024-10-31 21:58:41,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903169362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:41,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:41,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:58:41,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778083903] [2024-10-31 21:58:41,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:41,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:41,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:41,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:41,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:41,985 INFO L87 Difference]: Start difference. First operand 420 states and 603 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:42,291 INFO L93 Difference]: Finished difference Result 830 states and 1197 transitions. [2024-10-31 21:58:42,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:42,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-31 21:58:42,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:42,301 INFO L225 Difference]: With dead ends: 830 [2024-10-31 21:58:42,301 INFO L226 Difference]: Without dead ends: 829 [2024-10-31 21:58:42,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:42,304 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 572 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:42,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1819 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:58:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-10-31 21:58:42,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 425. [2024-10-31 21:58:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 407 states have (on average 1.457002457002457) internal successors, (593), 419 states have internal predecessors, (593), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:42,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 609 transitions. [2024-10-31 21:58:42,336 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 609 transitions. Word has length 7 [2024-10-31 21:58:42,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:42,337 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 609 transitions. [2024-10-31 21:58:42,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 609 transitions. [2024-10-31 21:58:42,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 21:58:42,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:42,338 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:42,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:42,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:42,539 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:42,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:42,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1002424139, now seen corresponding path program 1 times [2024-10-31 21:58:42,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:42,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801182123] [2024-10-31 21:58:42,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:42,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 21:58:42,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838710754] [2024-10-31 21:58:42,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:42,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:42,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:42,579 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:42,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:58:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:42,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:58:42,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:42,772 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 [2024-10-31 21:58:42,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:42,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:58:42,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:42,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801182123] [2024-10-31 21:58:42,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 21:58:42,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838710754] [2024-10-31 21:58:42,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838710754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:42,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:42,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:58:42,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135861340] [2024-10-31 21:58:42,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:42,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:42,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:42,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:42,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:42,806 INFO L87 Difference]: Start difference. First operand 425 states and 609 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-31 21:58:43,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:43,007 INFO L93 Difference]: Finished difference Result 829 states and 1196 transitions. [2024-10-31 21:58:43,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:43,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-10-31 21:58:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:43,013 INFO L225 Difference]: With dead ends: 829 [2024-10-31 21:58:43,013 INFO L226 Difference]: Without dead ends: 828 [2024-10-31 21:58:43,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:43,018 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 570 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:43,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1818 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:58:43,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2024-10-31 21:58:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 426. [2024-10-31 21:58:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 408 states have (on average 1.4558823529411764) internal successors, (594), 420 states have internal predecessors, (594), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 610 transitions. [2024-10-31 21:58:43,059 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 610 transitions. Word has length 8 [2024-10-31 21:58:43,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:43,061 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 610 transitions. [2024-10-31 21:58:43,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-31 21:58:43,061 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 610 transitions. [2024-10-31 21:58:43,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-31 21:58:43,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:43,063 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:43,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 21:58:43,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:43,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:43,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,265 INFO L85 PathProgramCache]: Analyzing trace with hash -157664827, now seen corresponding path program 1 times [2024-10-31 21:58:43,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138318818] [2024-10-31 21:58:43,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:43,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138318818] [2024-10-31 21:58:43,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138318818] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:43,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:43,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:43,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276384870] [2024-10-31 21:58:43,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:43,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:43,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:43,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:43,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:43,523 INFO L87 Difference]: Start difference. First operand 426 states and 610 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-31 21:58:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:43,708 INFO L93 Difference]: Finished difference Result 1038 states and 1500 transitions. [2024-10-31 21:58:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:43,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-10-31 21:58:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:43,715 INFO L225 Difference]: With dead ends: 1038 [2024-10-31 21:58:43,716 INFO L226 Difference]: Without dead ends: 827 [2024-10-31 21:58:43,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:43,719 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 572 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:43,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1739 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:58:43,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-10-31 21:58:43,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 426. [2024-10-31 21:58:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 408 states have (on average 1.4534313725490196) internal successors, (593), 420 states have internal predecessors, (593), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:43,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 609 transitions. [2024-10-31 21:58:43,747 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 609 transitions. Word has length 10 [2024-10-31 21:58:43,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:43,747 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 609 transitions. [2024-10-31 21:58:43,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-31 21:58:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 609 transitions. [2024-10-31 21:58:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-31 21:58:43,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:43,754 INFO L215 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] [2024-10-31 21:58:43,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 21:58:43,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:43,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:43,756 INFO L85 PathProgramCache]: Analyzing trace with hash 205854116, now seen corresponding path program 1 times [2024-10-31 21:58:43,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:43,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777971781] [2024-10-31 21:58:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:43,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:44,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:44,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777971781] [2024-10-31 21:58:44,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777971781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:44,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:44,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:44,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761474250] [2024-10-31 21:58:44,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:44,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:44,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:44,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:44,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:44,460 INFO L87 Difference]: Start difference. First operand 426 states and 609 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:44,580 INFO L93 Difference]: Finished difference Result 801 states and 1142 transitions. [2024-10-31 21:58:44,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:44,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-31 21:58:44,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:44,588 INFO L225 Difference]: With dead ends: 801 [2024-10-31 21:58:44,588 INFO L226 Difference]: Without dead ends: 383 [2024-10-31 21:58:44,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:44,590 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 12 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:44,591 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1482 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:58:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-10-31 21:58:44,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 382. [2024-10-31 21:58:44,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 364 states have (on average 1.4120879120879122) internal successors, (514), 376 states have internal predecessors, (514), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:44,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 530 transitions. [2024-10-31 21:58:44,607 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 530 transitions. Word has length 81 [2024-10-31 21:58:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:44,608 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 530 transitions. [2024-10-31 21:58:44,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 530 transitions. [2024-10-31 21:58:44,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-31 21:58:44,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:44,613 INFO L215 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] [2024-10-31 21:58:44,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:58:44,614 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:44,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:44,615 INFO L85 PathProgramCache]: Analyzing trace with hash 774993816, now seen corresponding path program 1 times [2024-10-31 21:58:44,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:44,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29016001] [2024-10-31 21:58:44,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:44,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:44,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:58:44,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:44,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29016001] [2024-10-31 21:58:44,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29016001] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:44,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:44,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:58:44,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439198509] [2024-10-31 21:58:44,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:44,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:58:44,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:44,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:58:44,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:44,946 INFO L87 Difference]: Start difference. First operand 382 states and 530 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:45,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:45,106 INFO L93 Difference]: Finished difference Result 1005 states and 1411 transitions. [2024-10-31 21:58:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:58:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-10-31 21:58:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:45,110 INFO L225 Difference]: With dead ends: 1005 [2024-10-31 21:58:45,110 INFO L226 Difference]: Without dead ends: 631 [2024-10-31 21:58:45,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:58:45,112 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 297 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:45,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1202 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:58:45,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-10-31 21:58:45,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 627. [2024-10-31 21:58:45,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 609 states have (on average 1.4269293924466337) internal successors, (869), 621 states have internal predecessors, (869), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 885 transitions. [2024-10-31 21:58:45,134 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 885 transitions. Word has length 81 [2024-10-31 21:58:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:45,135 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 885 transitions. [2024-10-31 21:58:45,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:58:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 885 transitions. [2024-10-31 21:58:45,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 21:58:45,138 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:45,138 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:45,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:58:45,139 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:45,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:45,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1709174147, now seen corresponding path program 1 times [2024-10-31 21:58:45,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:45,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311445527] [2024-10-31 21:58:45,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:45,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:45,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 21:58:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-31 21:58:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:45,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:45,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311445527] [2024-10-31 21:58:45,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311445527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:45,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:45,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:45,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073820679] [2024-10-31 21:58:45,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:45,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:58:45,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:58:45,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:45,571 INFO L87 Difference]: Start difference. First operand 627 states and 885 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:46,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:46,040 INFO L93 Difference]: Finished difference Result 1227 states and 1745 transitions. [2024-10-31 21:58:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:58:46,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2024-10-31 21:58:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:46,045 INFO L225 Difference]: With dead ends: 1227 [2024-10-31 21:58:46,045 INFO L226 Difference]: Without dead ends: 634 [2024-10-31 21:58:46,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:58:46,047 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 7 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:46,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1422 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:58:46,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-10-31 21:58:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 631. [2024-10-31 21:58:46,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 613 states have (on average 1.4176182707993474) internal successors, (869), 625 states have internal predecessors, (869), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-31 21:58:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 885 transitions. [2024-10-31 21:58:46,071 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 885 transitions. Word has length 96 [2024-10-31 21:58:46,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:46,072 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 885 transitions. [2024-10-31 21:58:46,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 3 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:46,072 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 885 transitions. [2024-10-31 21:58:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 21:58:46,074 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:46,074 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:46,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 21:58:46,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:46,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash -22994309, now seen corresponding path program 1 times [2024-10-31 21:58:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:46,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342094340] [2024-10-31 21:58:46,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:46,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 21:58:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-31 21:58:46,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:46,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:46,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342094340] [2024-10-31 21:58:46,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342094340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:46,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:46,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:58:46,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190610320] [2024-10-31 21:58:46,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:46,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:58:46,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:46,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:58:46,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:58:46,666 INFO L87 Difference]: Start difference. First operand 631 states and 885 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:47,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:47,336 INFO L93 Difference]: Finished difference Result 939 states and 1327 transitions. [2024-10-31 21:58:47,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:58:47,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2024-10-31 21:58:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:47,343 INFO L225 Difference]: With dead ends: 939 [2024-10-31 21:58:47,343 INFO L226 Difference]: Without dead ends: 937 [2024-10-31 21:58:47,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:58:47,345 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 409 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:47,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1988 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 21:58:47,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-10-31 21:58:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 695. [2024-10-31 21:58:47,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 674 states have (on average 1.4050445103857567) internal successors, (947), 686 states have internal predecessors, (947), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 21:58:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 969 transitions. [2024-10-31 21:58:47,373 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 969 transitions. Word has length 96 [2024-10-31 21:58:47,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:47,374 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 969 transitions. [2024-10-31 21:58:47,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:47,375 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 969 transitions. [2024-10-31 21:58:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-31 21:58:47,377 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:47,377 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:47,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:58:47,378 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:47,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:47,378 INFO L85 PathProgramCache]: Analyzing trace with hash 739927642, now seen corresponding path program 1 times [2024-10-31 21:58:47,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:47,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606995415] [2024-10-31 21:58:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:47,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:47,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 21:58:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:48,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-31 21:58:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:58:48,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:48,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606995415] [2024-10-31 21:58:48,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606995415] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:58:48,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780772780] [2024-10-31 21:58:48,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:48,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:48,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:48,069 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:48,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:58:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:48,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-31 21:58:48,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:48,666 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 [2024-10-31 21:58:48,747 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 [2024-10-31 21:58:48,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-31 21:58:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:50,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:58:50,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780772780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:50,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:58:50,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-10-31 21:58:50,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023083235] [2024-10-31 21:58:50,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:50,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 21:58:50,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:50,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 21:58:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-31 21:58:50,349 INFO L87 Difference]: Start difference. First operand 695 states and 969 transitions. Second operand has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:53,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:53,689 INFO L93 Difference]: Finished difference Result 1585 states and 2236 transitions. [2024-10-31 21:58:53,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:58:53,693 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 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 102 [2024-10-31 21:58:53,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:53,697 INFO L225 Difference]: With dead ends: 1585 [2024-10-31 21:58:53,698 INFO L226 Difference]: Without dead ends: 936 [2024-10-31 21:58:53,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-10-31 21:58:53,700 INFO L432 NwaCegarLoop]: 531 mSDtfsCounter, 604 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 4005 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:53,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 4005 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-31 21:58:53,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-10-31 21:58:53,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 695. [2024-10-31 21:58:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 674 states have (on average 1.403560830860534) internal successors, (946), 686 states have internal predecessors, (946), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 21:58:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 968 transitions. [2024-10-31 21:58:53,729 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 968 transitions. Word has length 102 [2024-10-31 21:58:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:53,730 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 968 transitions. [2024-10-31 21:58:53,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.636363636363637) internal successors, (95), 11 states have internal predecessors, (95), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:53,731 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 968 transitions. [2024-10-31 21:58:53,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-31 21:58:53,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:53,732 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:53,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 21:58:53,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-31 21:58:53,937 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:53,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:53,938 INFO L85 PathProgramCache]: Analyzing trace with hash -789740493, now seen corresponding path program 1 times [2024-10-31 21:58:53,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:53,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486074092] [2024-10-31 21:58:53,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:53,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:54,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 21:58:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:54,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-31 21:58:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:58:54,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486074092] [2024-10-31 21:58:54,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486074092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:58:54,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520624496] [2024-10-31 21:58:54,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:58:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:58:54,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:58:54,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 21:58:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:54,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 21:58:54,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:58:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:55,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:58:55,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520624496] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:55,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:58:55,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2024-10-31 21:58:55,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966048684] [2024-10-31 21:58:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:55,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:58:55,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:55,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:58:55,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:58:55,226 INFO L87 Difference]: Start difference. First operand 695 states and 968 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:55,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:55,793 INFO L93 Difference]: Finished difference Result 1354 states and 1902 transitions. [2024-10-31 21:58:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:58:55,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2024-10-31 21:58:55,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:55,798 INFO L225 Difference]: With dead ends: 1354 [2024-10-31 21:58:55,798 INFO L226 Difference]: Without dead ends: 705 [2024-10-31 21:58:55,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:58:55,800 INFO L432 NwaCegarLoop]: 499 mSDtfsCounter, 15 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:55,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2674 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 21:58:55,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-10-31 21:58:55,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 703. [2024-10-31 21:58:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 682 states have (on average 1.3988269794721409) internal successors, (954), 694 states have internal predecessors, (954), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 21:58:55,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 976 transitions. [2024-10-31 21:58:55,827 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 976 transitions. Word has length 103 [2024-10-31 21:58:55,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:55,827 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 976 transitions. [2024-10-31 21:58:55,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 976 transitions. [2024-10-31 21:58:55,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-31 21:58:55,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:55,829 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:55,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-31 21:58:56,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 21:58:56,034 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:56,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:56,035 INFO L85 PathProgramCache]: Analyzing trace with hash 873748224, now seen corresponding path program 1 times [2024-10-31 21:58:56,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:56,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113732072] [2024-10-31 21:58:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:56,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:56,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:58:56,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:56,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-31 21:58:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:56,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:56,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113732072] [2024-10-31 21:58:56,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113732072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:56,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:56,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 21:58:56,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687757762] [2024-10-31 21:58:56,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:56,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:58:56,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:56,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:58:56,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:58:56,630 INFO L87 Difference]: Start difference. First operand 703 states and 976 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:57,339 INFO L93 Difference]: Finished difference Result 1366 states and 1917 transitions. [2024-10-31 21:58:57,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:58:57,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 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 105 [2024-10-31 21:58:57,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:57,346 INFO L225 Difference]: With dead ends: 1366 [2024-10-31 21:58:57,346 INFO L226 Difference]: Without dead ends: 712 [2024-10-31 21:58:57,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:58:57,348 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 14 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:57,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2225 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 21:58:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-10-31 21:58:57,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 709. [2024-10-31 21:58:57,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 688 states have (on average 1.3953488372093024) internal successors, (960), 700 states have internal predecessors, (960), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 21:58:57,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 982 transitions. [2024-10-31 21:58:57,376 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 982 transitions. Word has length 105 [2024-10-31 21:58:57,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:57,377 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 982 transitions. [2024-10-31 21:58:57,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 6 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:57,377 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 982 transitions. [2024-10-31 21:58:57,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-31 21:58:57,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:57,379 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:57,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 21:58:57,379 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:57,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:57,380 INFO L85 PathProgramCache]: Analyzing trace with hash 952327404, now seen corresponding path program 1 times [2024-10-31 21:58:57,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:57,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521225281] [2024-10-31 21:58:57,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:57,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:57,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 21:58:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:57,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-31 21:58:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:57,907 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:57,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:57,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521225281] [2024-10-31 21:58:57,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521225281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:57,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:57,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 21:58:57,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946607522] [2024-10-31 21:58:57,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:57,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:58:57,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:57,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:58:57,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:58:57,913 INFO L87 Difference]: Start difference. First operand 709 states and 982 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:58:58,861 INFO L93 Difference]: Finished difference Result 1368 states and 1916 transitions. [2024-10-31 21:58:58,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:58:58,862 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 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 105 [2024-10-31 21:58:58,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:58:58,867 INFO L225 Difference]: With dead ends: 1368 [2024-10-31 21:58:58,868 INFO L226 Difference]: Without dead ends: 722 [2024-10-31 21:58:58,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:58:58,870 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 18 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 21:58:58,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3036 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 21:58:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-10-31 21:58:58,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 709. [2024-10-31 21:58:58,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 688 states have (on average 1.3953488372093024) internal successors, (960), 700 states have internal predecessors, (960), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 21:58:58,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 982 transitions. [2024-10-31 21:58:58,896 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 982 transitions. Word has length 105 [2024-10-31 21:58:58,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:58:58,896 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 982 transitions. [2024-10-31 21:58:58,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:58:58,897 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 982 transitions. [2024-10-31 21:58:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 21:58:58,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:58:58,900 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:58:58,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 21:58:58,901 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:58:58,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:58:58,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1079042295, now seen corresponding path program 1 times [2024-10-31 21:58:58,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:58:58,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481173660] [2024-10-31 21:58:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:58:58,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:58:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:59,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:58:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:59,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 21:58:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:58:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:58:59,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:58:59,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481173660] [2024-10-31 21:58:59,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481173660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:58:59,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:58:59,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-31 21:58:59,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349845400] [2024-10-31 21:58:59,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:58:59,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 21:58:59,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:58:59,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:58:59,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:58:59,553 INFO L87 Difference]: Start difference. First operand 709 states and 982 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:00,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:00,478 INFO L93 Difference]: Finished difference Result 1373 states and 1920 transitions. [2024-10-31 21:59:00,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 21:59:00,479 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 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 106 [2024-10-31 21:59:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:00,482 INFO L225 Difference]: With dead ends: 1373 [2024-10-31 21:59:00,483 INFO L226 Difference]: Without dead ends: 732 [2024-10-31 21:59:00,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:00,485 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 26 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:00,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3557 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 21:59:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-10-31 21:59:00,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 723. [2024-10-31 21:59:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 702 states have (on average 1.393162393162393) internal successors, (978), 714 states have internal predecessors, (978), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-31 21:59:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1000 transitions. [2024-10-31 21:59:00,511 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1000 transitions. Word has length 106 [2024-10-31 21:59:00,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:00,512 INFO L471 AbstractCegarLoop]: Abstraction has 723 states and 1000 transitions. [2024-10-31 21:59:00,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:00,512 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1000 transitions. [2024-10-31 21:59:00,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 21:59:00,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:00,514 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:00,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 21:59:00,514 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-31 21:59:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:00,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1453514843, now seen corresponding path program 1 times [2024-10-31 21:59:00,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:00,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523778014] [2024-10-31 21:59:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:00,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:01,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 21:59:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:01,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-31 21:59:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:01,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:01,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523778014] [2024-10-31 21:59:01,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523778014] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:01,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108933971] [2024-10-31 21:59:01,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:01,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:01,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:01,074 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:01,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81de84a8-77d6-4949-ade8-23d463caf24f/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 21:59:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:01,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-31 21:59:01,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:01,813 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:01,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:01,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108933971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:01,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:01,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2024-10-31 21:59:01,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259833682] [2024-10-31 21:59:01,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:01,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 21:59:01,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:01,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 21:59:01,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:01,818 INFO L87 Difference]: Start difference. First operand 723 states and 1000 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 8 states have internal predecessors, (99), 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)