./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB --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 c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:22:57,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:22:57,833 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:22:57,846 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:22:57,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:22:57,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:22:57,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:22:57,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:22:57,896 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:22:57,896 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:22:57,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:22:57,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:22:57,898 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:22:57,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:22:57,899 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:22:57,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:22:57,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:22:57,899 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:22:57,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:22:57,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:22:57,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:22:57,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:22:57,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:22:57,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:22:57,902 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:22:57,902 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:22:57,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:22:57,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:22:57,902 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:22:57,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:22:57,903 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:22:57,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:57,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:57,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:57,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:57,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:22:57,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:22:57,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:22:57,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:22:57,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:22:57,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:22:57,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:22:57,906 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:22:57,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:22:57,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:22:57,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:22:57,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:22:57,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:22:57,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:22:57,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:22:57,907 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB 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 -> c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e [2024-11-27 20:22:58,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:22:58,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:22:58,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:22:58,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:22:58,382 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:22:58,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2024-11-27 20:23:02,198 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/data/881c319f2/ebd3b6b460c14b50af52665b35a6625c/FLAGccb5536ae [2024-11-27 20:23:02,734 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:23:02,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2024-11-27 20:23:02,773 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/data/881c319f2/ebd3b6b460c14b50af52665b35a6625c/FLAGccb5536ae [2024-11-27 20:23:02,798 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/data/881c319f2/ebd3b6b460c14b50af52665b35a6625c [2024-11-27 20:23:02,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:23:02,803 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:23:02,804 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:02,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:23:02,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:23:02,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:02" (1/1) ... [2024-11-27 20:23:02,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58615d14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:02, skipping insertion in model container [2024-11-27 20:23:02,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:02" (1/1) ... [2024-11-27 20:23:02,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:23:03,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:03,625 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:23:03,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:03,829 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:23:03,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03 WrapperNode [2024-11-27 20:23:03,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:03,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:03,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:23:03,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:23:03,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:03,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:03,998 INFO L138 Inliner]: procedures = 208, calls = 229, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1280 [2024-11-27 20:23:03,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:03,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:23:03,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:23:03,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:23:04,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,094 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-27 20:23:04,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,136 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:23:04,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:23:04,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:23:04,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:23:04,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (1/1) ... [2024-11-27 20:23:04,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:04,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:04,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:23:04,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:23:04,305 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 20:23:04,305 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 20:23:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-27 20:23:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-27 20:23:04,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-27 20:23:04,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-27 20:23:04,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-27 20:23:04,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-27 20:23:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:23:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:23:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:23:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:23:04,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:23:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:23:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:23:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:23:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:23:04,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:23:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:23:04,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:23:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:23:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:23:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:23:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:23:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:23:04,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:23:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:23:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:23:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:23:04,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:23:04,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:23:04,668 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:23:04,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:23:07,401 INFO L? ?]: Removed 313 outVars from TransFormulas that were not future-live. [2024-11-27 20:23:07,402 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:23:07,440 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:23:07,444 INFO L312 CfgBuilder]: Removed 31 assume(true) statements. [2024-11-27 20:23:07,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:07 BoogieIcfgContainer [2024-11-27 20:23:07,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:23:07,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:23:07,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:23:07,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:23:07,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:23:02" (1/3) ... [2024-11-27 20:23:07,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a30f2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:07, skipping insertion in model container [2024-11-27 20:23:07,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:03" (2/3) ... [2024-11-27 20:23:07,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a30f2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:07, skipping insertion in model container [2024-11-27 20:23:07,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:07" (3/3) ... [2024-11-27 20:23:07,460 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-1.i [2024-11-27 20:23:07,481 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:23:07,483 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test2-1.i that has 6 procedures, 412 locations, 1 initial locations, 33 loop locations, and 8 error locations. [2024-11-27 20:23:07,581 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:23:07,605 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;@3eb54a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:23:07,606 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-27 20:23:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 382 states have (on average 1.617801047120419) internal successors, (618), 397 states have internal predecessors, (618), 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) [2024-11-27 20:23:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 20:23:07,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:07,625 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:07,625 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)] === [2024-11-27 20:23:07,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:07,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1000487724, now seen corresponding path program 1 times [2024-11-27 20:23:07,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:07,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19930664] [2024-11-27 20:23:07,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:07,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:23:07,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443872224] [2024-11-27 20:23:07,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:07,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:07,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:07,836 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:07,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:23:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:08,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:23:08,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:08,165 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 [2024-11-27 20:23:08,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:08,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:08,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:08,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19930664] [2024-11-27 20:23:08,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:23:08,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443872224] [2024-11-27 20:23:08,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443872224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:08,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:08,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:08,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203203938] [2024-11-27 20:23:08,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:08,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:08,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:08,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:08,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:08,309 INFO L87 Difference]: Start difference. First operand has 404 states, 382 states have (on average 1.617801047120419) internal successors, (618), 397 states have internal predecessors, (618), 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 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) [2024-11-27 20:23:08,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:08,817 INFO L93 Difference]: Finished difference Result 1190 states and 1904 transitions. [2024-11-27 20:23:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:08,821 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 [2024-11-27 20:23:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:08,852 INFO L225 Difference]: With dead ends: 1190 [2024-11-27 20:23:08,852 INFO L226 Difference]: Without dead ends: 779 [2024-11-27 20:23:08,861 INFO L434 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 [2024-11-27 20:23:08,867 INFO L435 NwaCegarLoop]: 595 mSDtfsCounter, 537 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:08,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1729 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:23:08,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2024-11-27 20:23:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 401. [2024-11-27 20:23:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 383 states have (on average 1.4569190600522193) internal successors, (558), 395 states have internal predecessors, (558), 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) [2024-11-27 20:23:09,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 574 transitions. [2024-11-27 20:23:09,017 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 574 transitions. Word has length 8 [2024-11-27 20:23:09,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:09,019 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 574 transitions. [2024-11-27 20:23:09,020 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) [2024-11-27 20:23:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 574 transitions. [2024-11-27 20:23:09,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:23:09,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:09,022 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:09,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:23:09,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:23:09,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:23:09,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:09,226 INFO L85 PathProgramCache]: Analyzing trace with hash 950348457, now seen corresponding path program 1 times [2024-11-27 20:23:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033274850] [2024-11-27 20:23:09,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:23:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545639939] [2024-11-27 20:23:09,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:09,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:09,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:09,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:23:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:09,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:23:09,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:09,557 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 [2024-11-27 20:23:09,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:09,635 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:09,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:09,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033274850] [2024-11-27 20:23:09,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:23:09,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545639939] [2024-11-27 20:23:09,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545639939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:09,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:09,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:09,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469534623] [2024-11-27 20:23:09,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:09,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:09,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:09,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:09,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:09,639 INFO L87 Difference]: Start difference. First operand 401 states and 574 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-27 20:23:09,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:09,964 INFO L93 Difference]: Finished difference Result 779 states and 1124 transitions. [2024-11-27 20:23:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:09,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2024-11-27 20:23:09,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:09,971 INFO L225 Difference]: With dead ends: 779 [2024-11-27 20:23:09,971 INFO L226 Difference]: Without dead ends: 778 [2024-11-27 20:23:09,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:23:09,974 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 533 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:09,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1718 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:23:09,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2024-11-27 20:23:10,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 402. [2024-11-27 20:23:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 384 states have (on average 1.4557291666666667) internal successors, (559), 396 states have internal predecessors, (559), 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) [2024-11-27 20:23:10,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 575 transitions. [2024-11-27 20:23:10,029 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 575 transitions. Word has length 9 [2024-11-27 20:23:10,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:10,030 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 575 transitions. [2024-11-27 20:23:10,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-11-27 20:23:10,030 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 575 transitions. [2024-11-27 20:23:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:23:10,033 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:10,034 INFO L218 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] [2024-11-27 20:23:10,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:23:10,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:10,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:23:10,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1518090925, now seen corresponding path program 1 times [2024-11-27 20:23:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:10,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308795306] [2024-11-27 20:23:10,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:10,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:11,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:11,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308795306] [2024-11-27 20:23:11,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308795306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:11,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:11,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:23:11,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520749643] [2024-11-27 20:23:11,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:11,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:11,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:11,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:11,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:11,208 INFO L87 Difference]: Start difference. First operand 402 states and 575 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-27 20:23:11,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:11,462 INFO L93 Difference]: Finished difference Result 959 states and 1388 transitions. [2024-11-27 20:23:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:11,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2024-11-27 20:23:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:11,468 INFO L225 Difference]: With dead ends: 959 [2024-11-27 20:23:11,469 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 20:23:11,470 INFO L434 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 [2024-11-27 20:23:11,471 INFO L435 NwaCegarLoop]: 548 mSDtfsCounter, 536 mSDsluCounter, 1083 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1631 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:11,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1631 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:23:11,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 20:23:11,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 402. [2024-11-27 20:23:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 384 states have (on average 1.453125) internal successors, (558), 396 states have internal predecessors, (558), 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) [2024-11-27 20:23:11,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 574 transitions. [2024-11-27 20:23:11,514 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 574 transitions. Word has length 64 [2024-11-27 20:23:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:11,515 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 574 transitions. [2024-11-27 20:23:11,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2024-11-27 20:23:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 574 transitions. [2024-11-27 20:23:11,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 20:23:11,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:11,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:11,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:23:11,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:23:11,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:11,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1007752753, now seen corresponding path program 1 times [2024-11-27 20:23:11,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:11,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064473941] [2024-11-27 20:23:11,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:11,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:12,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:12,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:12,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064473941] [2024-11-27 20:23:12,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064473941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:12,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:12,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:23:12,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817459680] [2024-11-27 20:23:12,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:12,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:12,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:12,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:12,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:12,131 INFO L87 Difference]: Start difference. First operand 402 states and 574 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-11-27 20:23:12,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:12,289 INFO L93 Difference]: Finished difference Result 798 states and 1142 transitions. [2024-11-27 20:23:12,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:12,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 82 [2024-11-27 20:23:12,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:12,294 INFO L225 Difference]: With dead ends: 798 [2024-11-27 20:23:12,294 INFO L226 Difference]: Without dead ends: 405 [2024-11-27 20:23:12,295 INFO L434 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 [2024-11-27 20:23:12,296 INFO L435 NwaCegarLoop]: 539 mSDtfsCounter, 106 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:12,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1523 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:23:12,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-27 20:23:12,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 402. [2024-11-27 20:23:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 384 states have (on average 1.4348958333333333) internal successors, (551), 396 states have internal predecessors, (551), 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) [2024-11-27 20:23:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 567 transitions. [2024-11-27 20:23:12,364 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 567 transitions. Word has length 82 [2024-11-27 20:23:12,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:12,364 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 567 transitions. [2024-11-27 20:23:12,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2024-11-27 20:23:12,365 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 567 transitions. [2024-11-27 20:23:12,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 20:23:12,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:12,371 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:12,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:23:12,371 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)] === [2024-11-27 20:23:12,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash 313503171, now seen corresponding path program 1 times [2024-11-27 20:23:12,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:12,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812670048] [2024-11-27 20:23:12,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:12,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:12,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:23:12,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:12,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812670048] [2024-11-27 20:23:12,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812670048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:12,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:12,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:12,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890932786] [2024-11-27 20:23:12,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:12,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:12,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:12,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:12,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:12,714 INFO L87 Difference]: Start difference. First operand 402 states and 567 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-27 20:23:12,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:12,835 INFO L93 Difference]: Finished difference Result 1078 states and 1545 transitions. [2024-11-27 20:23:12,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:12,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2024-11-27 20:23:12,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:12,843 INFO L225 Difference]: With dead ends: 1078 [2024-11-27 20:23:12,843 INFO L226 Difference]: Without dead ends: 685 [2024-11-27 20:23:12,844 INFO L434 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 [2024-11-27 20:23:12,846 INFO L435 NwaCegarLoop]: 755 mSDtfsCounter, 355 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 1301 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:12,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 1301 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:23:12,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2024-11-27 20:23:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 681. [2024-11-27 20:23:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 681 states, 658 states have (on average 1.4574468085106382) internal successors, (959), 675 states have internal predecessors, (959), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-27 20:23:12,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 985 transitions. [2024-11-27 20:23:12,899 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 985 transitions. Word has length 82 [2024-11-27 20:23:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:12,900 INFO L471 AbstractCegarLoop]: Abstraction has 681 states and 985 transitions. [2024-11-27 20:23:12,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-27 20:23:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 985 transitions. [2024-11-27 20:23:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 20:23:12,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:12,902 INFO L218 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, 1] [2024-11-27 20:23:12,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:23:12,902 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)] === [2024-11-27 20:23:12,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:12,904 INFO L85 PathProgramCache]: Analyzing trace with hash 2003416673, now seen corresponding path program 1 times [2024-11-27 20:23:12,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:12,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449405916] [2024-11-27 20:23:12,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:12,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:23:13,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:13,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449405916] [2024-11-27 20:23:13,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449405916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:13,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:13,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:13,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649670441] [2024-11-27 20:23:13,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:13,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:13,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:13,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:13,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:13,577 INFO L87 Difference]: Start difference. First operand 681 states and 985 transitions. Second operand has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:23:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:13,762 INFO L93 Difference]: Finished difference Result 947 states and 1370 transitions. [2024-11-27 20:23:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 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 97 [2024-11-27 20:23:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:13,768 INFO L225 Difference]: With dead ends: 947 [2024-11-27 20:23:13,768 INFO L226 Difference]: Without dead ends: 945 [2024-11-27 20:23:13,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:23:13,771 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 442 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:13,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 1695 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:23:13,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-27 20:23:13,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 747. [2024-11-27 20:23:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 721 states have (on average 1.4410540915395285) internal successors, (1039), 738 states have internal predecessors, (1039), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:23:13,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1071 transitions. [2024-11-27 20:23:13,848 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1071 transitions. Word has length 97 [2024-11-27 20:23:13,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:13,849 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 1071 transitions. [2024-11-27 20:23:13,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:23:13,849 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1071 transitions. [2024-11-27 20:23:13,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:23:13,850 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:13,851 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:13,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:23:13,851 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:23:13,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:13,853 INFO L85 PathProgramCache]: Analyzing trace with hash 438849034, now seen corresponding path program 1 times [2024-11-27 20:23:13,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:13,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917381269] [2024-11-27 20:23:13,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:13,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:23:14,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:14,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917381269] [2024-11-27 20:23:14,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917381269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:14,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657525119] [2024-11-27 20:23:14,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:14,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:14,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:14,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:14,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:23:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:14,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:23:14,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:14,962 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 [2024-11-27 20:23:14,999 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 [2024-11-27 20:23:15,029 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 [2024-11-27 20:23:15,801 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:23:15,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 38 [2024-11-27 20:23:16,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:23:16,220 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:16,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657525119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:16,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:23:16,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2024-11-27 20:23:16,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512740250] [2024-11-27 20:23:16,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:16,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:23:16,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:16,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:23:16,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:23:16,224 INFO L87 Difference]: Start difference. First operand 747 states and 1071 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:23:20,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:23:21,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:21,451 INFO L93 Difference]: Finished difference Result 1656 states and 2384 transitions. [2024-11-27 20:23:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:23:21,455 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 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 104 [2024-11-27 20:23:21,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:21,462 INFO L225 Difference]: With dead ends: 1656 [2024-11-27 20:23:21,462 INFO L226 Difference]: Without dead ends: 999 [2024-11-27 20:23:21,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:23:21,466 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 824 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:21,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 2847 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 739 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 20:23:21,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-27 20:23:21,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 781. [2024-11-27 20:23:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 755 states have (on average 1.433112582781457) internal successors, (1082), 772 states have internal predecessors, (1082), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:23:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1114 transitions. [2024-11-27 20:23:21,533 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1114 transitions. Word has length 104 [2024-11-27 20:23:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:21,533 INFO L471 AbstractCegarLoop]: Abstraction has 781 states and 1114 transitions. [2024-11-27 20:23:21,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 11 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:23:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1114 transitions. [2024-11-27 20:23:21,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:23:21,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:21,535 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:21,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:23:21,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:21,739 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:23:21,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1638487864, now seen corresponding path program 1 times [2024-11-27 20:23:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:21,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899446794] [2024-11-27 20:23:21,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:21,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:21,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:23:21,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:21,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899446794] [2024-11-27 20:23:21,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899446794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:21,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:21,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:23:21,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054614688] [2024-11-27 20:23:21,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:21,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:21,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:21,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:21,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:21,954 INFO L87 Difference]: Start difference. First operand 781 states and 1114 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:23:22,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:22,044 INFO L93 Difference]: Finished difference Result 1399 states and 1998 transitions. [2024-11-27 20:23:22,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:23:22,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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 104 [2024-11-27 20:23:22,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:22,048 INFO L225 Difference]: With dead ends: 1399 [2024-11-27 20:23:22,049 INFO L226 Difference]: Without dead ends: 649 [2024-11-27 20:23:22,050 INFO L434 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 [2024-11-27 20:23:22,050 INFO L435 NwaCegarLoop]: 463 mSDtfsCounter, 9 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:22,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1370 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:23:22,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-27 20:23:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2024-11-27 20:23:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 623 states have (on average 1.406099518459069) internal successors, (876), 640 states have internal predecessors, (876), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:23:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 908 transitions. [2024-11-27 20:23:22,082 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 908 transitions. Word has length 104 [2024-11-27 20:23:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:22,083 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 908 transitions. [2024-11-27 20:23:22,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:23:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 908 transitions. [2024-11-27 20:23:22,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:23:22,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:22,085 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:22,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:23:22,086 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)] === [2024-11-27 20:23:22,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:22,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1503182485, now seen corresponding path program 1 times [2024-11-27 20:23:22,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:22,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830544200] [2024-11-27 20:23:22,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:22,773 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:23:22,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:22,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830544200] [2024-11-27 20:23:22,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830544200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:23:22,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383277227] [2024-11-27 20:23:22,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:22,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:22,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:22,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:22,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:23:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:23,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:23:23,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:57,844 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:24:09,864 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:24:30,455 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:24:42,474 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:24:50,566 WARN L286 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 37 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:25:12,230 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:25:24,407 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:25:45,257 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:26:04,450 WARN L286 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:26:18,956 WARN L286 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:26:41,330 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:26:47,608 WARN L286 SmtUtils]: Spent 6.28s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:26:59,622 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:27:20,269 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:27:36,060 WARN L286 SmtUtils]: Spent 10.80s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:27:48,142 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:28:04,564 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:28:25,054 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:28:33,098 WARN L286 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:28:42,538 WARN L286 SmtUtils]: Spent 9.44s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:28:58,966 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:29:15,735 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:29:27,815 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:29:34,388 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:29:46,402 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:30:07,041 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:30:12,725 WARN L286 SmtUtils]: Spent 5.68s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:30:19,013 WARN L286 SmtUtils]: Spent 6.29s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:30:31,158 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:30:37,565 WARN L286 SmtUtils]: Spent 6.41s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:30:49,580 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:31:10,379 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:31:16,576 WARN L286 SmtUtils]: Spent 6.20s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:31:27,978 WARN L286 SmtUtils]: Spent 11.40s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:31:40,075 WARN L286 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:31:56,630 WARN L286 SmtUtils]: Spent 12.02s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:32:05,144 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse14 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4276993779) 4294967296))) (let ((.cse9 (* .cse14 256)) (.cse11 (mod (+ 2690382803 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4294967296)) (.cse13 (* (- 1) |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) (.cse15 (* 16777215 |c_ULTIMATE.start_main_~_ha_hashv~0#1|))) (or (exists ((v_z_31 Int)) (and (<= 0 v_z_31) (<= v_z_31 16777215) (exists ((v_z_10 Int)) (and (<= 0 v_z_10) (exists ((v_z_13 Int)) (let ((.cse0 (mod (+ (* 16711680 v_z_10) .cse15 14384614 (* v_z_13 16776960)) 16777216))) (and (<= 0 v_z_13) (<= 16777216 (+ v_z_31 .cse0)) (<= v_z_13 255) (exists ((v_y_19 Int)) (let ((.cse12 (* .cse0 16777215))) (let ((.cse2 (* v_y_19 16777216)) (.cse1 (+ (* v_z_31 16777215) .cse12))) (and (<= .cse1 (+ .cse2 562949919866880)) (<= (+ .cse2 562949919866625) .cse1) (exists ((v_y_31 Int)) (let ((.cse3 (* v_y_31 16777216))) (and (<= (+ v_z_31 .cse3) 4294967295) (exists ((v_y_27 Int) (v_y_20 Int)) (let ((.cse10 (* v_y_27 4294967296)) (.cse8 (div (+ (* v_z_10 (- 65536)) (* v_z_13 (- 256)) .cse12 (- 562941365879322) .cse13) 16777216)) (.cse4 (* v_z_31 255)) (.cse5 (* v_y_20 256)) (.cse6 (* v_y_27 256)) (.cse7 (* v_y_31 4294967295))) (and (<= (+ .cse4 .cse5 v_y_19 .cse6 .cse7) .cse8) (= .cse9 (+ 1099511627776 (* v_y_31 72057589726183424) (* v_z_31 4294967039) .cse10 (* v_y_20 4294967296))) (= (+ .cse11 (* 72057594021150720 v_y_31) .cse10 (* v_z_31 4294967295)) 4294967296) (<= .cse8 (+ .cse4 .cse5 v_y_19 255 .cse6 .cse7))))) (<= 4294967296 (+ .cse14 v_z_31 .cse3)))))))))))) (<= v_z_10 255))))) (exists ((v_z_31 Int)) (and (exists ((v_z_10 Int)) (and (exists ((v_z_13 Int)) (let ((.cse26 (mod (+ (* 16711680 v_z_10) .cse15 14384614 (* v_z_13 16776960)) 16777216))) (and (exists ((v_y_19 Int)) (let ((.cse24 (* .cse26 16777215))) (let ((.cse17 (* v_y_19 16777216)) (.cse16 (+ (* v_z_31 16777215) .cse24))) (and (<= .cse16 (+ .cse17 562949919866880)) (<= (+ .cse17 562949919866625) .cse16) (exists ((v_y_31 Int)) (let ((.cse25 (* v_y_31 16777216))) (and (exists ((v_y_27 Int) (v_y_20 Int)) (let ((.cse23 (* v_y_27 4294967296)) (.cse22 (div (+ (* v_z_10 (- 65536)) (* v_z_13 (- 256)) .cse24 (- 562941365879322) .cse13) 16777216)) (.cse18 (* v_z_31 255)) (.cse19 (* v_y_20 256)) (.cse20 (* v_y_27 256)) (.cse21 (* v_y_31 4294967295))) (and (<= (+ .cse18 .cse19 v_y_19 .cse20 .cse21) .cse22) (= .cse9 (+ (* v_y_31 72057589726183424) (* v_z_31 4294967039) .cse23 (* v_y_20 4294967296))) (= (+ .cse11 (* 72057594021150720 v_y_31) .cse23 (* v_z_31 4294967295)) 4294967296) (<= .cse22 (+ .cse18 .cse19 v_y_19 255 .cse20 .cse21))))) (<= (+ .cse14 v_z_31 .cse25) 4294967295) (<= 0 (+ v_z_31 .cse25))))))))) (<= 0 v_z_13) (<= 16777216 (+ v_z_31 .cse26)) (<= v_z_13 255)))) (<= 0 v_z_10) (<= v_z_10 255))) (<= 0 v_z_31) (<= v_z_31 16777215)))))) is different from false [2024-11-27 20:32:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:32:05,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:05,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383277227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:05,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:05,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [4] total 15 [2024-11-27 20:32:05,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552200302] [2024-11-27 20:32:05,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:05,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:32:05,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:05,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:32:05,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=147, Unknown=6, NotChecked=24, Total=210 [2024-11-27 20:32:05,993 INFO L87 Difference]: Start difference. First operand 649 states and 908 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 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) [2024-11-27 20:32:09,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:13,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:17,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:20,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:24,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:28,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:32,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:36,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:40,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:44,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:48,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:52,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:32:56,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:00,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:04,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:08,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:12,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:16,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:20,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:24,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:28,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:32,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:36,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:40,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:44,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:48,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:51,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:55,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:33:59,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:03,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:07,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:11,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:17,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:21,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:34:21,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:21,365 INFO L93 Difference]: Finished difference Result 1257 states and 1773 transitions. [2024-11-27 20:34:21,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:34:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 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 [2024-11-27 20:34:21,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:21,371 INFO L225 Difference]: With dead ends: 1257 [2024-11-27 20:34:21,371 INFO L226 Difference]: Without dead ends: 649 [2024-11-27 20:34:21,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=33, Invalid=147, Unknown=6, NotChecked=24, Total=210 [2024-11-27 20:34:21,376 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 2 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 1 mSolverCounterUnsat, 32 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 135.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3945 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 32 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 135.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:21,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3945 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 679 Invalid, 32 Unknown, 80 Unchecked, 135.3s Time] [2024-11-27 20:34:21,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-27 20:34:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2024-11-27 20:34:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 623 states have (on average 1.4028892455858748) internal successors, (874), 640 states have internal predecessors, (874), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:34:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 906 transitions. [2024-11-27 20:34:21,413 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 906 transitions. Word has length 105 [2024-11-27 20:34:21,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:21,414 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 906 transitions. [2024-11-27 20:34:21,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 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) [2024-11-27 20:34:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 906 transitions. [2024-11-27 20:34:21,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 20:34:21,417 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:21,417 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:21,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:34:21,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:21,618 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)] === [2024-11-27 20:34:21,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:21,619 INFO L85 PathProgramCache]: Analyzing trace with hash -322034449, now seen corresponding path program 1 times [2024-11-27 20:34:21,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:21,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054820285] [2024-11-27 20:34:21,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:21,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:34:22,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:22,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054820285] [2024-11-27 20:34:22,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054820285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:22,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:22,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:34:22,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346005088] [2024-11-27 20:34:22,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:22,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:34:22,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:22,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:34:22,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:22,215 INFO L87 Difference]: Start difference. First operand 649 states and 906 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 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) [2024-11-27 20:34:22,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:22,785 INFO L93 Difference]: Finished difference Result 1260 states and 1775 transitions. [2024-11-27 20:34:22,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:34:22,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 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 [2024-11-27 20:34:22,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:22,792 INFO L225 Difference]: With dead ends: 1260 [2024-11-27 20:34:22,792 INFO L226 Difference]: Without dead ends: 655 [2024-11-27 20:34:22,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:22,794 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 4 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:22,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2048 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:34:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-27 20:34:22,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2024-11-27 20:34:22,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 629 states have (on average 1.399046104928458) internal successors, (880), 646 states have internal predecessors, (880), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 20:34:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 912 transitions. [2024-11-27 20:34:22,832 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 912 transitions. Word has length 106 [2024-11-27 20:34:22,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:22,833 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 912 transitions. [2024-11-27 20:34:22,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 6 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) [2024-11-27 20:34:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 912 transitions. [2024-11-27 20:34:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-27 20:34:22,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:22,836 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:22,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:34:22,836 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)] === [2024-11-27 20:34:22,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash 109585710, now seen corresponding path program 1 times [2024-11-27 20:34:22,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:22,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935050495] [2024-11-27 20:34:22,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:22,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:34:23,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:23,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935050495] [2024-11-27 20:34:23,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935050495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:23,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670729764] [2024-11-27 20:34:23,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:23,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:23,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:23,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:23,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:34:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:23,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:34:23,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:24,023 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:34:24,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:24,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670729764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:24,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:24,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-27 20:34:24,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048358946] [2024-11-27 20:34:24,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:24,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:34:24,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:24,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:34:24,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:24,027 INFO L87 Difference]: Start difference. First operand 655 states and 912 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:34:24,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:24,077 INFO L93 Difference]: Finished difference Result 1219 states and 1713 transitions. [2024-11-27 20:34:24,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:24,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2024-11-27 20:34:24,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:24,085 INFO L225 Difference]: With dead ends: 1219 [2024-11-27 20:34:24,085 INFO L226 Difference]: Without dead ends: 658 [2024-11-27 20:34:24,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:24,088 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 0 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:24,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1421 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:24,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-27 20:34:24,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2024-11-27 20:34:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 631 states have (on average 1.3993660855784469) internal successors, (883), 649 states have internal predecessors, (883), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 917 transitions. [2024-11-27 20:34:24,180 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 917 transitions. Word has length 107 [2024-11-27 20:34:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:24,181 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 917 transitions. [2024-11-27 20:34:24,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:34:24,181 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 917 transitions. [2024-11-27 20:34:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 20:34:24,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:24,183 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:24,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:34:24,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:34:24,388 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)] === [2024-11-27 20:34:24,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:24,389 INFO L85 PathProgramCache]: Analyzing trace with hash -804496720, now seen corresponding path program 1 times [2024-11-27 20:34:24,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:24,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885169448] [2024-11-27 20:34:24,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:24,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:24,977 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:34:24,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885169448] [2024-11-27 20:34:24,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885169448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:24,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708340055] [2024-11-27 20:34:24,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:24,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:24,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:24,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:24,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:34:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:25,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:34:25,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:25,695 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:34:25,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-27 20:34:25,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708340055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:34:25,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:34:25,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:34:25,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316706841] [2024-11-27 20:34:25,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:25,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:34:25,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:25,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:34:25,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:34:25,842 INFO L87 Difference]: Start difference. First operand 658 states and 917 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:34:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:26,181 INFO L93 Difference]: Finished difference Result 1233 states and 1737 transitions. [2024-11-27 20:34:26,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:34:26,182 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 109 [2024-11-27 20:34:26,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:26,186 INFO L225 Difference]: With dead ends: 1233 [2024-11-27 20:34:26,187 INFO L226 Difference]: Without dead ends: 669 [2024-11-27 20:34:26,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:34:26,189 INFO L435 NwaCegarLoop]: 476 mSDtfsCounter, 5 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:26,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2840 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:34:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-27 20:34:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 667. [2024-11-27 20:34:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 639 states have (on average 1.403755868544601) internal successors, (897), 657 states have internal predecessors, (897), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 931 transitions. [2024-11-27 20:34:26,234 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 931 transitions. Word has length 109 [2024-11-27 20:34:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:26,235 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 931 transitions. [2024-11-27 20:34:26,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:34:26,235 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 931 transitions. [2024-11-27 20:34:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-27 20:34:26,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:26,237 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:26,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:26,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:34:26,444 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)] === [2024-11-27 20:34:26,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:26,445 INFO L85 PathProgramCache]: Analyzing trace with hash 252916238, now seen corresponding path program 2 times [2024-11-27 20:34:26,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:26,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860682872] [2024-11-27 20:34:26,445 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:26,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:26,801 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:26,802 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:27,408 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:34:27,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:27,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860682872] [2024-11-27 20:34:27,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860682872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:27,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045765275] [2024-11-27 20:34:27,409 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:27,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:27,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:27,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:27,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:34:27,884 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:34:27,884 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:27,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:34:27,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:27,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 20:34:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-27 20:34:27,926 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:27,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045765275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:27,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:27,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2024-11-27 20:34:27,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794174803] [2024-11-27 20:34:27,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:27,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:27,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:27,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:27,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:27,929 INFO L87 Difference]: Start difference. First operand 667 states and 931 transitions. Second operand has 3 states, 2 states have (on average 48.5) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:27,962 INFO L93 Difference]: Finished difference Result 667 states and 931 transitions. [2024-11-27 20:34:27,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:27,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 48.5) internal successors, (97), 3 states have internal predecessors, (97), 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 113 [2024-11-27 20:34:27,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:27,969 INFO L225 Difference]: With dead ends: 667 [2024-11-27 20:34:27,969 INFO L226 Difference]: Without dead ends: 666 [2024-11-27 20:34:27,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:27,971 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 1 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:27,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 946 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-27 20:34:27,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2024-11-27 20:34:28,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 639 states have (on average 1.402190923317684) internal successors, (896), 656 states have internal predecessors, (896), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 930 transitions. [2024-11-27 20:34:28,005 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 930 transitions. Word has length 113 [2024-11-27 20:34:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:28,006 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 930 transitions. [2024-11-27 20:34:28,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 48.5) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:28,006 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 930 transitions. [2024-11-27 20:34:28,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-27 20:34:28,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:28,013 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:28,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:28,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 20:34:28,214 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:28,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:28,214 INFO L85 PathProgramCache]: Analyzing trace with hash -749531129, now seen corresponding path program 1 times [2024-11-27 20:34:28,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:28,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884975985] [2024-11-27 20:34:28,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:28,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:34:29,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:29,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884975985] [2024-11-27 20:34:29,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884975985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:29,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901898638] [2024-11-27 20:34:29,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:29,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:29,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:29,015 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:29,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:34:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:29,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:34:29,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:30,008 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:34:30,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:30,282 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 7 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 20:34:30,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901898638] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:34:30,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:34:30,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 19 [2024-11-27 20:34:30,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266243479] [2024-11-27 20:34:30,285 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:30,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:34:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:30,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:34:30,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:34:30,288 INFO L87 Difference]: Start difference. First operand 666 states and 930 transitions. Second operand has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:34:31,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:31,213 INFO L93 Difference]: Finished difference Result 1253 states and 1769 transitions. [2024-11-27 20:34:31,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:34:31,214 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 114 [2024-11-27 20:34:31,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:31,219 INFO L225 Difference]: With dead ends: 1253 [2024-11-27 20:34:31,219 INFO L226 Difference]: Without dead ends: 677 [2024-11-27 20:34:31,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=267, Invalid=489, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:34:31,222 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 29 mSDsluCounter, 3208 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:31,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 3670 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:34:31,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-27 20:34:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 675. [2024-11-27 20:34:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 648 states have (on average 1.4012345679012346) internal successors, (908), 665 states have internal predecessors, (908), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 942 transitions. [2024-11-27 20:34:31,258 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 942 transitions. Word has length 114 [2024-11-27 20:34:31,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:31,259 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 942 transitions. [2024-11-27 20:34:31,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.684210526315789) internal successors, (127), 19 states have internal predecessors, (127), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:34:31,259 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 942 transitions. [2024-11-27 20:34:31,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-27 20:34:31,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:31,262 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:31,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:34:31,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 20:34:31,466 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:31,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash 261819310, now seen corresponding path program 2 times [2024-11-27 20:34:31,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:31,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952448980] [2024-11-27 20:34:31,467 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:31,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:31,795 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:31,795 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:32,747 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 7 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 20:34:32,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:32,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952448980] [2024-11-27 20:34:32,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952448980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:32,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438449843] [2024-11-27 20:34:32,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:32,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:32,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:32,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:32,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:34:33,407 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:33,407 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:33,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:34:33,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:33,424 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 [2024-11-27 20:34:33,988 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 23 treesize of output 3 [2024-11-27 20:34:34,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-27 20:34:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-27 20:34:34,226 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:35,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438449843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:35,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:34:35,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8] total 21 [2024-11-27 20:34:35,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597285039] [2024-11-27 20:34:35,785 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:35,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:34:35,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:35,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:34:35,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:34:35,791 INFO L87 Difference]: Start difference. First operand 675 states and 942 transitions. Second operand has 21 states, 21 states have (on average 10.285714285714286) internal successors, (216), 21 states have internal predecessors, (216), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:34:37,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:37,365 INFO L93 Difference]: Finished difference Result 1649 states and 2316 transitions. [2024-11-27 20:34:37,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 20:34:37,366 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.285714285714286) internal successors, (216), 21 states have internal predecessors, (216), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 123 [2024-11-27 20:34:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:37,373 INFO L225 Difference]: With dead ends: 1649 [2024-11-27 20:34:37,374 INFO L226 Difference]: Without dead ends: 1064 [2024-11-27 20:34:37,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 140 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=239, Invalid=1483, Unknown=0, NotChecked=0, Total=1722 [2024-11-27 20:34:37,379 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 767 mSDsluCounter, 4247 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 4880 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:37,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 4880 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:34:37,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2024-11-27 20:34:37,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 709. [2024-11-27 20:34:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 679 states have (on average 1.4005891016200294) internal successors, (951), 697 states have internal predecessors, (951), 16 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 985 transitions. [2024-11-27 20:34:37,426 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 985 transitions. Word has length 123 [2024-11-27 20:34:37,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:37,427 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 985 transitions. [2024-11-27 20:34:37,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.285714285714286) internal successors, (216), 21 states have internal predecessors, (216), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:34:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 985 transitions. [2024-11-27 20:34:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-27 20:34:37,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:37,431 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:37,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:37,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:34:37,632 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:37,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:37,633 INFO L85 PathProgramCache]: Analyzing trace with hash -184450607, now seen corresponding path program 1 times [2024-11-27 20:34:37,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:37,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920872999] [2024-11-27 20:34:37,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:38,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:38,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920872999] [2024-11-27 20:34:38,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920872999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:38,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248056467] [2024-11-27 20:34:38,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:38,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:38,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:38,997 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:39,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:34:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:39,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:34:39,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:39,780 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-27 20:34:39,781 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:39,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248056467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:39,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:39,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-27 20:34:39,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764569325] [2024-11-27 20:34:39,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:39,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:39,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:39,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:39,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:39,785 INFO L87 Difference]: Start difference. First operand 709 states and 985 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:39,935 INFO L93 Difference]: Finished difference Result 1081 states and 1541 transitions. [2024-11-27 20:34:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:39,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 179 [2024-11-27 20:34:39,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:39,943 INFO L225 Difference]: With dead ends: 1081 [2024-11-27 20:34:39,944 INFO L226 Difference]: Without dead ends: 749 [2024-11-27 20:34:39,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:39,946 INFO L435 NwaCegarLoop]: 457 mSDtfsCounter, 8 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:39,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 899 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:39,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-27 20:34:39,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2024-11-27 20:34:39,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 719 states have (on average 1.3783031988873435) internal successors, (991), 737 states have internal predecessors, (991), 16 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:39,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1025 transitions. [2024-11-27 20:34:39,988 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1025 transitions. Word has length 179 [2024-11-27 20:34:39,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:39,989 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1025 transitions. [2024-11-27 20:34:39,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:39,990 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1025 transitions. [2024-11-27 20:34:39,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-27 20:34:39,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:39,994 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:40,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:34:40,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:34:40,195 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:40,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:40,196 INFO L85 PathProgramCache]: Analyzing trace with hash -432597101, now seen corresponding path program 1 times [2024-11-27 20:34:40,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:40,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696202862] [2024-11-27 20:34:40,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:40,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:41,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696202862] [2024-11-27 20:34:41,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696202862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:41,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897947847] [2024-11-27 20:34:41,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:41,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:41,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:41,360 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:41,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:34:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:42,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:34:42,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-27 20:34:42,235 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:42,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897947847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:42,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:42,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-27 20:34:42,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198055853] [2024-11-27 20:34:42,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:42,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:34:42,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:42,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:34:42,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:42,238 INFO L87 Difference]: Start difference. First operand 749 states and 1025 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:42,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:42,483 INFO L93 Difference]: Finished difference Result 1093 states and 1533 transitions. [2024-11-27 20:34:42,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:42,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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 179 [2024-11-27 20:34:42,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:42,491 INFO L225 Difference]: With dead ends: 1093 [2024-11-27 20:34:42,491 INFO L226 Difference]: Without dead ends: 721 [2024-11-27 20:34:42,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:42,493 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 106 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:42,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1253 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-27 20:34:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-27 20:34:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 691 states have (on average 1.3733719247467437) internal successors, (949), 709 states have internal predecessors, (949), 16 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (18), 8 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-27 20:34:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 983 transitions. [2024-11-27 20:34:42,573 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 983 transitions. Word has length 179 [2024-11-27 20:34:42,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:42,573 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 983 transitions. [2024-11-27 20:34:42,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:42,575 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 983 transitions. [2024-11-27 20:34:42,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-27 20:34:42,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:42,580 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:42,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:34:42,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:34:42,781 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:42,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:42,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1319048773, now seen corresponding path program 1 times [2024-11-27 20:34:42,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:42,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818860723] [2024-11-27 20:34:42,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:42,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:43,196 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:43,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:43,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818860723] [2024-11-27 20:34:43,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818860723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:43,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:43,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:34:43,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450413252] [2024-11-27 20:34:43,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:43,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:43,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:43,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:43,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:43,199 INFO L87 Difference]: Start difference. First operand 721 states and 983 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:43,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:43,867 INFO L93 Difference]: Finished difference Result 1255 states and 1723 transitions. [2024-11-27 20:34:43,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:34:43,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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 179 [2024-11-27 20:34:43,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:43,873 INFO L225 Difference]: With dead ends: 1255 [2024-11-27 20:34:43,873 INFO L226 Difference]: Without dead ends: 724 [2024-11-27 20:34:43,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:34:43,875 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 1329 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:43,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 1221 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:34:43,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-27 20:34:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 533. [2024-11-27 20:34:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 512 states have (on average 1.34765625) internal successors, (690), 524 states have internal predecessors, (690), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:34:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 709 transitions. [2024-11-27 20:34:43,908 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 709 transitions. Word has length 179 [2024-11-27 20:34:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:43,909 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 709 transitions. [2024-11-27 20:34:43,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:43,910 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 709 transitions. [2024-11-27 20:34:43,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-27 20:34:43,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:43,913 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:34:43,914 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:43,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1403044419, now seen corresponding path program 1 times [2024-11-27 20:34:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838789731] [2024-11-27 20:34:43,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:43,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:44,239 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-27 20:34:44,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:44,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838789731] [2024-11-27 20:34:44,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838789731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:44,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:44,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248975969] [2024-11-27 20:34:44,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:44,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:34:44,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:44,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:34:44,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:34:44,243 INFO L87 Difference]: Start difference. First operand 533 states and 709 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:44,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:44,302 INFO L93 Difference]: Finished difference Result 727 states and 980 transitions. [2024-11-27 20:34:44,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:34:44,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 189 [2024-11-27 20:34:44,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:44,306 INFO L225 Difference]: With dead ends: 727 [2024-11-27 20:34:44,307 INFO L226 Difference]: Without dead ends: 533 [2024-11-27 20:34:44,308 INFO L434 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 [2024-11-27 20:34:44,308 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 12 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:44,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 912 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-27 20:34:44,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2024-11-27 20:34:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 512 states have (on average 1.341796875) internal successors, (687), 524 states have internal predecessors, (687), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:34:44,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 706 transitions. [2024-11-27 20:34:44,343 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 706 transitions. Word has length 189 [2024-11-27 20:34:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:44,344 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 706 transitions. [2024-11-27 20:34:44,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 706 transitions. [2024-11-27 20:34:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-27 20:34:44,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:44,349 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:44,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:34:44,349 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:44,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1640726191, now seen corresponding path program 1 times [2024-11-27 20:34:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:44,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861262817] [2024-11-27 20:34:44,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:44,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:45,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861262817] [2024-11-27 20:34:45,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861262817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228133164] [2024-11-27 20:34:45,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:45,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:45,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:45,543 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:45,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:34:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:46,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:34:46,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-27 20:34:46,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228133164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:46,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:46,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-11-27 20:34:46,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972932501] [2024-11-27 20:34:46,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:46,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:34:46,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:46,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:34:46,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:34:46,953 INFO L87 Difference]: Start difference. First operand 533 states and 706 transitions. Second operand has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:47,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:47,041 INFO L93 Difference]: Finished difference Result 534 states and 707 transitions. [2024-11-27 20:34:47,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:47,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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 195 [2024-11-27 20:34:47,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:47,047 INFO L225 Difference]: With dead ends: 534 [2024-11-27 20:34:47,047 INFO L226 Difference]: Without dead ends: 533 [2024-11-27 20:34:47,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:34:47,052 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 295 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:47,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 901 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:47,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-27 20:34:47,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 532. [2024-11-27 20:34:47,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 512 states have (on average 1.33984375) internal successors, (686), 523 states have internal predecessors, (686), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:34:47,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 705 transitions. [2024-11-27 20:34:47,094 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 705 transitions. Word has length 195 [2024-11-27 20:34:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:47,094 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 705 transitions. [2024-11-27 20:34:47,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 705 transitions. [2024-11-27 20:34:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-27 20:34:47,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:47,100 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:47,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:34:47,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:47,301 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:47,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash -677094165, now seen corresponding path program 1 times [2024-11-27 20:34:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:47,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302920674] [2024-11-27 20:34:47,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:47,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-27 20:34:47,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:47,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302920674] [2024-11-27 20:34:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302920674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:47,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:47,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607431228] [2024-11-27 20:34:47,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:47,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:34:47,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:47,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:34:47,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:34:47,739 INFO L87 Difference]: Start difference. First operand 532 states and 705 transitions. Second operand has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:47,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:47,815 INFO L93 Difference]: Finished difference Result 706 states and 951 transitions. [2024-11-27 20:34:47,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:34:47,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 4 states have internal predecessors, (173), 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 196 [2024-11-27 20:34:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:47,821 INFO L225 Difference]: With dead ends: 706 [2024-11-27 20:34:47,821 INFO L226 Difference]: Without dead ends: 705 [2024-11-27 20:34:47,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:47,823 INFO L435 NwaCegarLoop]: 460 mSDtfsCounter, 273 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:47,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1164 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:34:47,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-27 20:34:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 696. [2024-11-27 20:34:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 676 states have (on average 1.3520710059171597) internal successors, (914), 687 states have internal predecessors, (914), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:34:47,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 933 transitions. [2024-11-27 20:34:47,861 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 933 transitions. Word has length 196 [2024-11-27 20:34:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:47,862 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 933 transitions. [2024-11-27 20:34:47,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 57.666666666666664) internal successors, (173), 4 states have internal predecessors, (173), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 933 transitions. [2024-11-27 20:34:47,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 20:34:47,866 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:47,866 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:47,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 20:34:47,867 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:47,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:47,867 INFO L85 PathProgramCache]: Analyzing trace with hash 587658215, now seen corresponding path program 1 times [2024-11-27 20:34:47,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:47,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065105798] [2024-11-27 20:34:47,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:47,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:49,676 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:49,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:49,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065105798] [2024-11-27 20:34:49,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065105798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:49,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454259221] [2024-11-27 20:34:49,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:49,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:49,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:49,681 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:49,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:34:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:50,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 1197 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:34:50,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:50,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 20:34:50,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-27 20:34:50,971 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:50,971 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:50,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454259221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:50,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:50,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-27 20:34:50,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11434656] [2024-11-27 20:34:50,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:50,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:50,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:50,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:50,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:34:50,974 INFO L87 Difference]: Start difference. First operand 696 states and 933 transitions. Second operand has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:51,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:51,141 INFO L93 Difference]: Finished difference Result 713 states and 960 transitions. [2024-11-27 20:34:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:51,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 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 197 [2024-11-27 20:34:51,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:51,147 INFO L225 Difference]: With dead ends: 713 [2024-11-27 20:34:51,147 INFO L226 Difference]: Without dead ends: 712 [2024-11-27 20:34:51,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:34:51,152 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 358 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:51,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 1141 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:34:51,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-27 20:34:51,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 695. [2024-11-27 20:34:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 676 states have (on average 1.3505917159763314) internal successors, (913), 686 states have internal predecessors, (913), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:34:51,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 932 transitions. [2024-11-27 20:34:51,194 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 932 transitions. Word has length 197 [2024-11-27 20:34:51,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:51,195 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 932 transitions. [2024-11-27 20:34:51,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:51,196 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 932 transitions. [2024-11-27 20:34:51,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 20:34:51,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:51,200 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:51,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:51,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:34:51,400 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:51,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:51,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1037536314, now seen corresponding path program 1 times [2024-11-27 20:34:51,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:51,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390952468] [2024-11-27 20:34:51,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:51,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-27 20:34:52,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:52,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390952468] [2024-11-27 20:34:52,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390952468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:52,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:52,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:34:52,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675808829] [2024-11-27 20:34:52,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:52,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:34:52,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:52,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:34:52,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:52,085 INFO L87 Difference]: Start difference. First operand 695 states and 932 transitions. Second operand has 5 states, 4 states have (on average 44.0) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:52,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:52,465 INFO L93 Difference]: Finished difference Result 712 states and 959 transitions. [2024-11-27 20:34:52,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:34:52,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 44.0) internal successors, (176), 5 states have internal predecessors, (176), 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 198 [2024-11-27 20:34:52,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:52,471 INFO L225 Difference]: With dead ends: 712 [2024-11-27 20:34:52,472 INFO L226 Difference]: Without dead ends: 711 [2024-11-27 20:34:52,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:34:52,473 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 356 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:52,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1569 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:34:52,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-27 20:34:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 694. [2024-11-27 20:34:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 676 states have (on average 1.349112426035503) internal successors, (912), 685 states have internal predecessors, (912), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:34:52,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 931 transitions. [2024-11-27 20:34:52,538 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 931 transitions. Word has length 198 [2024-11-27 20:34:52,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:52,539 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 931 transitions. [2024-11-27 20:34:52,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 44.0) internal successors, (176), 5 states have internal predecessors, (176), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:34:52,540 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 931 transitions. [2024-11-27 20:34:52,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-27 20:34:52,544 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:52,545 INFO L218 NwaCegarLoop]: trace histogram [16, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:52,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:34:52,545 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:34:52,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:52,546 INFO L85 PathProgramCache]: Analyzing trace with hash -742143215, now seen corresponding path program 1 times [2024-11-27 20:34:52,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:52,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497550948] [2024-11-27 20:34:52,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:52,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 66 proven. 140 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 20:34:55,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:55,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497550948] [2024-11-27 20:34:55,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497550948] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:55,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80224522] [2024-11-27 20:34:55,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:55,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:55,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:55,626 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:55,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:34:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:56,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 20:34:56,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:56,806 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 [2024-11-27 20:34:57,462 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 19 treesize of output 11 [2024-11-27 20:34:57,514 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 [2024-11-27 20:34:57,554 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 [2024-11-27 20:34:58,341 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:34:58,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 58 [2024-11-27 20:34:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 57 proven. 36 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-27 20:34:58,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:00,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2024-11-27 20:35:03,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80224522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:03,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:03,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 27 [2024-11-27 20:35:03,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015341572] [2024-11-27 20:35:03,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:03,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 20:35:03,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:03,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 20:35:03,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=1264, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 20:35:03,077 INFO L87 Difference]: Start difference. First operand 694 states and 931 transitions. Second operand has 27 states, 27 states have (on average 11.148148148148149) internal successors, (301), 27 states have internal predecessors, (301), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:35:09,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:09,297 INFO L93 Difference]: Finished difference Result 1446 states and 1945 transitions. [2024-11-27 20:35:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 20:35:09,298 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 11.148148148148149) internal successors, (301), 27 states have internal predecessors, (301), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 205 [2024-11-27 20:35:09,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:09,310 INFO L225 Difference]: With dead ends: 1446 [2024-11-27 20:35:09,310 INFO L226 Difference]: Without dead ends: 859 [2024-11-27 20:35:09,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 294 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=389, Invalid=3271, Unknown=0, NotChecked=0, Total=3660 [2024-11-27 20:35:09,315 INFO L435 NwaCegarLoop]: 604 mSDtfsCounter, 646 mSDsluCounter, 6011 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 6615 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:09,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 6615 Invalid, 1836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:35:09,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-27 20:35:09,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 724. [2024-11-27 20:35:09,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 706 states have (on average 1.3342776203966005) internal successors, (942), 715 states have internal predecessors, (942), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (10), 5 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 20:35:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 961 transitions. [2024-11-27 20:35:09,448 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 961 transitions. Word has length 205 [2024-11-27 20:35:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:09,449 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 961 transitions. [2024-11-27 20:35:09,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 11.148148148148149) internal successors, (301), 27 states have internal predecessors, (301), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 20:35:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 961 transitions. [2024-11-27 20:35:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-27 20:35:09,463 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:09,463 INFO L218 NwaCegarLoop]: trace histogram [17, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:09,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:09,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:35:09,665 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:35:09,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:09,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1275798588, now seen corresponding path program 1 times [2024-11-27 20:35:09,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:09,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893713956] [2024-11-27 20:35:09,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:09,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:09,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-11-27 20:35:10,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:10,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893713956] [2024-11-27 20:35:10,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893713956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:10,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:10,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:35:10,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935625566] [2024-11-27 20:35:10,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:10,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:10,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:10,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:10,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:10,527 INFO L87 Difference]: Start difference. First operand 724 states and 961 transitions. Second operand has 4 states, 3 states have (on average 60.666666666666664) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:35:10,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:10,712 INFO L93 Difference]: Finished difference Result 741 states and 988 transitions. [2024-11-27 20:35:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:10,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 60.666666666666664) internal successors, (182), 4 states have internal predecessors, (182), 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 206 [2024-11-27 20:35:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:10,722 INFO L225 Difference]: With dead ends: 741 [2024-11-27 20:35:10,724 INFO L226 Difference]: Without dead ends: 739 [2024-11-27 20:35:10,725 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:10,726 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 344 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:10,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 1417 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:10,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-11-27 20:35:10,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2024-11-27 20:35:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 716 states have (on average 1.3365921787709498) internal successors, (957), 730 states have internal predecessors, (957), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:35:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 986 transitions. [2024-11-27 20:35:10,807 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 986 transitions. Word has length 206 [2024-11-27 20:35:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:10,808 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 986 transitions. [2024-11-27 20:35:10,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 60.666666666666664) internal successors, (182), 4 states have internal predecessors, (182), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:35:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 986 transitions. [2024-11-27 20:35:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-27 20:35:10,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:10,815 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:10,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 20:35:10,816 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:35:10,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash 831172214, now seen corresponding path program 1 times [2024-11-27 20:35:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:10,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447340358] [2024-11-27 20:35:10,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:10,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 89 proven. 94 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-27 20:35:48,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:48,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447340358] [2024-11-27 20:35:48,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447340358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:48,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993776301] [2024-11-27 20:35:48,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:48,197 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:48,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:35:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:50,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 1259 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:35:50,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:36:07,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:07,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993776301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:07,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:07,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22] total 27 [2024-11-27 20:36:07,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002443599] [2024-11-27 20:36:07,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:07,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:07,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:07,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:07,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:36:07,104 INFO L87 Difference]: Start difference. First operand 739 states and 986 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:08,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:36:10,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:36:11,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:11,813 INFO L93 Difference]: Finished difference Result 1434 states and 1927 transitions. [2024-11-27 20:36:11,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:11,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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 209 [2024-11-27 20:36:11,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:11,829 INFO L225 Difference]: With dead ends: 1434 [2024-11-27 20:36:11,833 INFO L226 Difference]: Without dead ends: 749 [2024-11-27 20:36:11,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:36:11,837 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 8 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2342 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:11,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2342 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:36:11,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-27 20:36:11,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2024-11-27 20:36:11,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 724 states have (on average 1.3356353591160222) internal successors, (967), 738 states have internal predecessors, (967), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:36:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 996 transitions. [2024-11-27 20:36:11,963 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 996 transitions. Word has length 209 [2024-11-27 20:36:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:11,966 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 996 transitions. [2024-11-27 20:36:11,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 996 transitions. [2024-11-27 20:36:11,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-27 20:36:11,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:11,982 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:12,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-27 20:36:12,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:36:12,183 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:36:12,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:12,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1965154622, now seen corresponding path program 1 times [2024-11-27 20:36:12,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:12,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951466941] [2024-11-27 20:36:12,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:12,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:12,963 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:36:12,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:12,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951466941] [2024-11-27 20:36:12,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951466941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:12,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:12,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:36:12,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112682207] [2024-11-27 20:36:12,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:12,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:12,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:12,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:12,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:12,967 INFO L87 Difference]: Start difference. First operand 747 states and 996 transitions. Second operand has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:13,661 INFO L93 Difference]: Finished difference Result 1446 states and 1942 transitions. [2024-11-27 20:36:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:13,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 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 209 [2024-11-27 20:36:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:13,668 INFO L225 Difference]: With dead ends: 1446 [2024-11-27 20:36:13,669 INFO L226 Difference]: Without dead ends: 757 [2024-11-27 20:36:13,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:13,672 INFO L435 NwaCegarLoop]: 449 mSDtfsCounter, 8 mSDsluCounter, 1900 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2349 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:13,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2349 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:36:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-27 20:36:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 747. [2024-11-27 20:36:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 724 states have (on average 1.3356353591160222) internal successors, (967), 738 states have internal predecessors, (967), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:36:13,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 996 transitions. [2024-11-27 20:36:13,730 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 996 transitions. Word has length 209 [2024-11-27 20:36:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:13,731 INFO L471 AbstractCegarLoop]: Abstraction has 747 states and 996 transitions. [2024-11-27 20:36:13,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.285714285714285) internal successors, (142), 7 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 996 transitions. [2024-11-27 20:36:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-27 20:36:13,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:13,735 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:13,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:36:13,736 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:36:13,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash -549994260, now seen corresponding path program 1 times [2024-11-27 20:36:13,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:13,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519445977] [2024-11-27 20:36:13,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:13,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 70 proven. 158 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 20:36:17,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519445977] [2024-11-27 20:36:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519445977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311715886] [2024-11-27 20:36:17,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:17,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:17,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:17,070 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:17,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:36:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:18,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:36:18,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:19,387 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-27 20:36:19,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:19,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311715886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:19,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:19,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 22 [2024-11-27 20:36:19,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601572552] [2024-11-27 20:36:19,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:19,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:36:19,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:19,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:36:19,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:36:19,396 INFO L87 Difference]: Start difference. First operand 747 states and 996 transitions. Second operand has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:20,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:20,251 INFO L93 Difference]: Finished difference Result 1451 states and 1946 transitions. [2024-11-27 20:36:20,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:36:20,252 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 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 211 [2024-11-27 20:36:20,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:20,257 INFO L225 Difference]: With dead ends: 1451 [2024-11-27 20:36:20,257 INFO L226 Difference]: Without dead ends: 767 [2024-11-27 20:36:20,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:36:20,260 INFO L435 NwaCegarLoop]: 442 mSDtfsCounter, 13 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:20,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2377 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:36:20,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-27 20:36:20,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 757. [2024-11-27 20:36:20,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 734 states have (on average 1.3337874659400546) internal successors, (979), 748 states have internal predecessors, (979), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:36:20,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1008 transitions. [2024-11-27 20:36:20,312 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1008 transitions. Word has length 211 [2024-11-27 20:36:20,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:20,313 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1008 transitions. [2024-11-27 20:36:20,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1008 transitions. [2024-11-27 20:36:20,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-27 20:36:20,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:20,317 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:20,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-27 20:36:20,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:36:20,521 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:36:20,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1915667860, now seen corresponding path program 1 times [2024-11-27 20:36:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885494859] [2024-11-27 20:36:20,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-27 20:36:21,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:21,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885494859] [2024-11-27 20:36:21,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885494859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:21,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:21,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:36:21,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042161355] [2024-11-27 20:36:21,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:21,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:36:21,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:21,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:36:21,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:36:21,422 INFO L87 Difference]: Start difference. First operand 757 states and 1008 transitions. Second operand has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:22,160 INFO L93 Difference]: Finished difference Result 1466 states and 1964 transitions. [2024-11-27 20:36:22,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:36:22,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 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 211 [2024-11-27 20:36:22,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:22,165 INFO L225 Difference]: With dead ends: 1466 [2024-11-27 20:36:22,165 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 20:36:22,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:36:22,168 INFO L435 NwaCegarLoop]: 454 mSDtfsCounter, 16 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:22,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2821 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:36:22,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 20:36:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 771. [2024-11-27 20:36:22,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 748 states have (on average 1.3328877005347595) internal successors, (997), 762 states have internal predecessors, (997), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:36:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1026 transitions. [2024-11-27 20:36:22,215 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1026 transitions. Word has length 211 [2024-11-27 20:36:22,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:22,216 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1026 transitions. [2024-11-27 20:36:22,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.22222222222222) internal successors, (146), 9 states have internal predecessors, (146), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1026 transitions. [2024-11-27 20:36:22,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-27 20:36:22,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:22,219 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:22,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-27 20:36:22,220 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:36:22,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:22,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2042383026, now seen corresponding path program 1 times [2024-11-27 20:36:22,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:22,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303361298] [2024-11-27 20:36:22,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:22,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 71 proven. 158 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 20:36:25,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:25,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303361298] [2024-11-27 20:36:25,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303361298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:25,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559814530] [2024-11-27 20:36:25,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:25,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:25,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:25,094 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:25,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:36:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:26,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:36:26,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-27 20:36:28,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:28,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559814530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:28,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:28,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [16] total 26 [2024-11-27 20:36:28,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982332825] [2024-11-27 20:36:28,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:28,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:36:28,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:28,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:36:28,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:36:28,177 INFO L87 Difference]: Start difference. First operand 771 states and 1026 transitions. Second operand has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:29,841 INFO L93 Difference]: Finished difference Result 1472 states and 1970 transitions. [2024-11-27 20:36:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:36:29,841 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 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 213 [2024-11-27 20:36:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:29,844 INFO L225 Difference]: With dead ends: 1472 [2024-11-27 20:36:29,844 INFO L226 Difference]: Without dead ends: 771 [2024-11-27 20:36:29,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:36:29,847 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 7 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3881 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:29,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3881 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-27 20:36:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-27 20:36:29,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 767. [2024-11-27 20:36:29,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 744 states have (on average 1.331989247311828) internal successors, (991), 758 states have internal predecessors, (991), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:36:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1020 transitions. [2024-11-27 20:36:29,894 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1020 transitions. Word has length 213 [2024-11-27 20:36:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:29,894 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1020 transitions. [2024-11-27 20:36:29,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.083333333333334) internal successors, (181), 12 states have internal predecessors, (181), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1020 transitions. [2024-11-27 20:36:29,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-27 20:36:29,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:29,898 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:29,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 20:36:30,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:30,099 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:36:30,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:30,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1426383950, now seen corresponding path program 1 times [2024-11-27 20:36:30,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:30,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704240049] [2024-11-27 20:36:30,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:30,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 71 proven. 158 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-27 20:36:32,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704240049] [2024-11-27 20:36:32,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704240049] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:32,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144777559] [2024-11-27 20:36:32,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:32,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:32,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:32,620 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:32,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:36:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:34,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:36:34,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-27 20:36:34,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:34,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144777559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:34,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:34,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2024-11-27 20:36:34,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039953185] [2024-11-27 20:36:34,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:34,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:34,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:34,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:34,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:36:34,338 INFO L87 Difference]: Start difference. First operand 767 states and 1020 transitions. Second operand has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:34,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:34,813 INFO L93 Difference]: Finished difference Result 1471 states and 1970 transitions. [2024-11-27 20:36:34,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:36:34,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 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 213 [2024-11-27 20:36:34,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:34,818 INFO L225 Difference]: With dead ends: 1471 [2024-11-27 20:36:34,818 INFO L226 Difference]: Without dead ends: 777 [2024-11-27 20:36:34,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:36:34,820 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 31 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:34,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 2360 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:36:34,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-27 20:36:34,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 771. [2024-11-27 20:36:34,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 748 states have (on average 1.3302139037433156) internal successors, (995), 762 states have internal predecessors, (995), 14 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (15), 6 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-27 20:36:34,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1024 transitions. [2024-11-27 20:36:34,867 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1024 transitions. Word has length 213 [2024-11-27 20:36:34,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:34,867 INFO L471 AbstractCegarLoop]: Abstraction has 771 states and 1024 transitions. [2024-11-27 20:36:34,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.142857142857142) internal successors, (148), 7 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:36:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1024 transitions. [2024-11-27 20:36:34,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-27 20:36:34,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:34,870 INFO L218 NwaCegarLoop]: trace histogram [17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:34,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:36:35,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d08875ef-6f7f-479e-848d-2c6691a3944a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:35,073 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-27 20:36:35,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash -91570624, now seen corresponding path program 1 times [2024-11-27 20:36:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154191423] [2024-11-27 20:36:35,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:35,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:36,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat