./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:16,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:16,834 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:02:16,840 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:16,841 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:16,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:16,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:16,863 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:16,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:02:16,864 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:02:16,865 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:02:16,865 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:02:16,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:16,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:16,867 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:16,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:16,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:02:16,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:02:16,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:16,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:02:16,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:16,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:02:16,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:02:16,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:02:16,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:16,876 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:02:16,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:16,877 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:02:16,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:16,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:16,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:16,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:16,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:02:16,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:02:16,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:16,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:16,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:02:16,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:02:16,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:16,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:02:16,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:02:16,885 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:02:16,885 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:02:16,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:02:16,886 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-10-31 22:02:17,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:17,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:17,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:17,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:17,246 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:17,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i Unable to find full path for "g++" [2024-10-31 22:02:19,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:20,119 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:20,120 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test3-2.i [2024-10-31 22:02:20,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/data/f37eb8f75/4cfa6a9f69bf4a20be81075adde01e16/FLAG7a41477b8 [2024-10-31 22:02:20,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/data/f37eb8f75/4cfa6a9f69bf4a20be81075adde01e16 [2024-10-31 22:02:20,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:20,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:20,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:20,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:20,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:20,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:20" (1/1) ... [2024-10-31 22:02:20,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4ac12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:20, skipping insertion in model container [2024-10-31 22:02:20,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:20" (1/1) ... [2024-10-31 22:02:20,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:21,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:21,033 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:21,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:21,213 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:21,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21 WrapperNode [2024-10-31 22:02:21,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:21,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:21,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:21,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:21,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,365 INFO L138 Inliner]: procedures = 177, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1608 [2024-10-31 22:02:21,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:21,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:21,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:21,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:21,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,614 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 266, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-10-31 22:02:21,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,696 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:21,757 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:21,757 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:21,758 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:21,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (1/1) ... [2024-10-31 22:02:21,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:21,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:21,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:21,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:02:21,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:02:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:02:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:02:21,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:02:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:02:21,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:02:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:02:21,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-31 22:02:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-31 22:02:21,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-10-31 22:02:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-31 22:02:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-31 22:02:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-10-31 22:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:02:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:02:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:02:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:02:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:02:21,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:02:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:02:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:02:21,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:02:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:02:21,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:22,138 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:22,141 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:24,302 INFO L? ?]: Removed 347 outVars from TransFormulas that were not future-live. [2024-10-31 22:02:24,302 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:24,338 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:24,338 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-10-31 22:02:24,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:24 BoogieIcfgContainer [2024-10-31 22:02:24,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:24,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:24,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:24,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:24,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:20" (1/3) ... [2024-10-31 22:02:24,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207a4506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:24, skipping insertion in model container [2024-10-31 22:02:24,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:21" (2/3) ... [2024-10-31 22:02:24,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207a4506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:24, skipping insertion in model container [2024-10-31 22:02:24,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:24" (3/3) ... [2024-10-31 22:02:24,353 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test3-2.i [2024-10-31 22:02:24,372 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:24,372 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-31 22:02:24,467 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:24,473 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;@37e5b0fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:24,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-31 22:02:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 449 states, 435 states have (on average 1.625287356321839) internal successors, (707), 442 states have internal predecessors, (707), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:02:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:02:24,488 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:24,489 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:24,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:24,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:24,496 INFO L85 PathProgramCache]: Analyzing trace with hash -408358773, now seen corresponding path program 1 times [2024-10-31 22:02:24,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:24,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666314422] [2024-10-31 22:02:24,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:24,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666314422] [2024-10-31 22:02:24,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666314422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:24,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:24,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:24,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495975739] [2024-10-31 22:02:24,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:24,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:02:24,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:24,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:24,779 INFO L87 Difference]: Start difference. First operand has 449 states, 435 states have (on average 1.625287356321839) internal successors, (707), 442 states have internal predecessors, (707), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:24,886 INFO L93 Difference]: Finished difference Result 894 states and 1431 transitions. [2024-10-31 22:02:24,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:24,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:02:24,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:24,904 INFO L225 Difference]: With dead ends: 894 [2024-10-31 22:02:24,905 INFO L226 Difference]: Without dead ends: 403 [2024-10-31 22:02:24,912 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:24,918 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:24,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:24,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-10-31 22:02:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-10-31 22:02:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 391 states have (on average 1.4552429667519182) internal successors, (569), 397 states have internal predecessors, (569), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:02:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 577 transitions. [2024-10-31 22:02:24,999 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 577 transitions. Word has length 8 [2024-10-31 22:02:24,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:24,999 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 577 transitions. [2024-10-31 22:02:25,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:25,000 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 577 transitions. [2024-10-31 22:02:25,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:02:25,000 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:25,001 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:25,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:25,001 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:25,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:25,006 INFO L85 PathProgramCache]: Analyzing trace with hash -408356851, now seen corresponding path program 1 times [2024-10-31 22:02:25,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:25,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292062958] [2024-10-31 22:02:25,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:25,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:02:25,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761723514] [2024-10-31 22:02:25,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:25,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:25,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:25,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:25,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:02:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:25,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:02:25,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:25,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:25,484 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:25,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292062958] [2024-10-31 22:02:25,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:02:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761723514] [2024-10-31 22:02:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761723514] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:25,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:25,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:25,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110389975] [2024-10-31 22:02:25,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:25,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:25,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:25,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:25,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:25,489 INFO L87 Difference]: Start difference. First operand 403 states and 577 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:25,741 INFO L93 Difference]: Finished difference Result 795 states and 1144 transitions. [2024-10-31 22:02:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:25,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:02:25,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:25,749 INFO L225 Difference]: With dead ends: 795 [2024-10-31 22:02:25,749 INFO L226 Difference]: Without dead ends: 793 [2024-10-31 22:02:25,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:25,754 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 552 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:25,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 1741 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:02:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2024-10-31 22:02:25,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 409. [2024-10-31 22:02:25,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 397 states have (on average 1.45088161209068) internal successors, (576), 403 states have internal predecessors, (576), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:02:25,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 584 transitions. [2024-10-31 22:02:25,785 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 584 transitions. Word has length 8 [2024-10-31 22:02:25,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:25,786 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 584 transitions. [2024-10-31 22:02:25,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:25,786 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 584 transitions. [2024-10-31 22:02:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-31 22:02:25,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:25,790 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:25,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:02:25,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:25,996 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:25,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1052288590, now seen corresponding path program 1 times [2024-10-31 22:02:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:25,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002745093] [2024-10-31 22:02:25,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:25,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:26,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-31 22:02:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:26,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:26,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002745093] [2024-10-31 22:02:26,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002745093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:26,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:26,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:26,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762863845] [2024-10-31 22:02:26,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:26,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:26,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:26,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:26,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:26,375 INFO L87 Difference]: Start difference. First operand 409 states and 584 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:02:26,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:26,496 INFO L93 Difference]: Finished difference Result 604 states and 865 transitions. [2024-10-31 22:02:26,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:26,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2024-10-31 22:02:26,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:26,500 INFO L225 Difference]: With dead ends: 604 [2024-10-31 22:02:26,500 INFO L226 Difference]: Without dead ends: 412 [2024-10-31 22:02:26,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:26,502 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 105 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1554 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 [2024-10-31 22:02:26,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1554 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:26,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-31 22:02:26,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 409. [2024-10-31 22:02:26,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 397 states have (on average 1.433249370277078) internal successors, (569), 403 states have internal predecessors, (569), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-31 22:02:26,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 577 transitions. [2024-10-31 22:02:26,519 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 577 transitions. Word has length 71 [2024-10-31 22:02:26,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:26,519 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 577 transitions. [2024-10-31 22:02:26,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:02:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 577 transitions. [2024-10-31 22:02:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-31 22:02:26,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:26,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:26,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:02:26,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:26,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:26,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1408941734, now seen corresponding path program 1 times [2024-10-31 22:02:26,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:26,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988731650] [2024-10-31 22:02:26,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:26,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:26,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-31 22:02:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:26,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:26,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988731650] [2024-10-31 22:02:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988731650] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:26,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:26,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112176520] [2024-10-31 22:02:26,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:26,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:26,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:26,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:26,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:26,801 INFO L87 Difference]: Start difference. First operand 409 states and 577 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:02:26,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:26,823 INFO L93 Difference]: Finished difference Result 601 states and 848 transitions. [2024-10-31 22:02:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:26,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2024-10-31 22:02:26,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:26,828 INFO L225 Difference]: With dead ends: 601 [2024-10-31 22:02:26,828 INFO L226 Difference]: Without dead ends: 404 [2024-10-31 22:02:26,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:26,831 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 0 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:26,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1699 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:26,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-10-31 22:02:26,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-10-31 22:02:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 394 states have (on average 1.4340101522842639) internal successors, (565), 399 states have internal predecessors, (565), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 571 transitions. [2024-10-31 22:02:26,856 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 571 transitions. Word has length 71 [2024-10-31 22:02:26,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:26,858 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 571 transitions. [2024-10-31 22:02:26,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 22:02:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 571 transitions. [2024-10-31 22:02:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 22:02:26,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:26,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:26,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:26,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:26,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:26,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1797250841, now seen corresponding path program 1 times [2024-10-31 22:02:26,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:26,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649760417] [2024-10-31 22:02:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:26,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:27,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:27,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649760417] [2024-10-31 22:02:27,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649760417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:27,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:27,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:27,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900978071] [2024-10-31 22:02:27,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:27,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:27,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:27,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:27,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:27,046 INFO L87 Difference]: Start difference. First operand 404 states and 571 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:27,088 INFO L93 Difference]: Finished difference Result 598 states and 844 transitions. [2024-10-31 22:02:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:27,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2024-10-31 22:02:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:27,091 INFO L225 Difference]: With dead ends: 598 [2024-10-31 22:02:27,091 INFO L226 Difference]: Without dead ends: 404 [2024-10-31 22:02:27,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:27,092 INFO L432 NwaCegarLoop]: 563 mSDtfsCounter, 15 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1100 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:27,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1100 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:27,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-10-31 22:02:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-10-31 22:02:27,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 394 states have (on average 1.4238578680203047) internal successors, (561), 399 states have internal predecessors, (561), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 567 transitions. [2024-10-31 22:02:27,110 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 567 transitions. Word has length 72 [2024-10-31 22:02:27,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:27,111 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 567 transitions. [2024-10-31 22:02:27,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 567 transitions. [2024-10-31 22:02:27,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:02:27,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:27,114 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:27,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:02:27,114 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:27,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:27,114 INFO L85 PathProgramCache]: Analyzing trace with hash 508941033, now seen corresponding path program 1 times [2024-10-31 22:02:27,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:27,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747307932] [2024-10-31 22:02:27,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:27,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:27,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:27,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:27,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747307932] [2024-10-31 22:02:27,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747307932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:27,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:27,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758342865] [2024-10-31 22:02:27,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:27,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:27,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:27,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:27,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:27,484 INFO L87 Difference]: Start difference. First operand 404 states and 567 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) [2024-10-31 22:02:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:27,603 INFO L93 Difference]: Finished difference Result 757 states and 1058 transitions. [2024-10-31 22:02:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:27,604 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 [2024-10-31 22:02:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:27,606 INFO L225 Difference]: With dead ends: 757 [2024-10-31 22:02:27,606 INFO L226 Difference]: Without dead ends: 362 [2024-10-31 22:02:27,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:27,608 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 36 mSDsluCounter, 896 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:27,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 1351 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-31 22:02:27,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2024-10-31 22:02:27,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 352 states have (on average 1.375) internal successors, (484), 357 states have internal predecessors, (484), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 490 transitions. [2024-10-31 22:02:27,620 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 490 transitions. Word has length 82 [2024-10-31 22:02:27,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:27,620 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 490 transitions. [2024-10-31 22:02:27,621 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) [2024-10-31 22:02:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 490 transitions. [2024-10-31 22:02:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:02:27,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:27,622 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:27,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:02:27,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:27,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:27,624 INFO L85 PathProgramCache]: Analyzing trace with hash 733475413, now seen corresponding path program 1 times [2024-10-31 22:02:27,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:27,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013128312] [2024-10-31 22:02:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:27,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:27,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:27,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013128312] [2024-10-31 22:02:27,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013128312] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:27,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:27,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:27,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78150605] [2024-10-31 22:02:27,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:27,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:27,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:27,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:27,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:27,808 INFO L87 Difference]: Start difference. First operand 362 states and 490 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) [2024-10-31 22:02:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:27,884 INFO L93 Difference]: Finished difference Result 709 states and 964 transitions. [2024-10-31 22:02:27,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:27,885 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 [2024-10-31 22:02:27,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:27,900 INFO L225 Difference]: With dead ends: 709 [2024-10-31 22:02:27,900 INFO L226 Difference]: Without dead ends: 356 [2024-10-31 22:02:27,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:27,901 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 9 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:27,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1352 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:27,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-10-31 22:02:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-10-31 22:02:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 346 states have (on average 1.369942196531792) internal successors, (474), 351 states have internal predecessors, (474), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 480 transitions. [2024-10-31 22:02:27,917 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 480 transitions. Word has length 82 [2024-10-31 22:02:27,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:27,918 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 480 transitions. [2024-10-31 22:02:27,919 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) [2024-10-31 22:02:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 480 transitions. [2024-10-31 22:02:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:02:27,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:27,923 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:27,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:27,924 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:27,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:27,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1156001885, now seen corresponding path program 1 times [2024-10-31 22:02:27,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:27,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133609378] [2024-10-31 22:02:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:27,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:28,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:28,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133609378] [2024-10-31 22:02:28,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133609378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:28,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:28,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:28,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825311499] [2024-10-31 22:02:28,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:28,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:28,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:28,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:28,138 INFO L87 Difference]: Start difference. First operand 356 states and 480 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) [2024-10-31 22:02:28,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:28,237 INFO L93 Difference]: Finished difference Result 920 states and 1254 transitions. [2024-10-31 22:02:28,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:28,242 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 [2024-10-31 22:02:28,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:28,245 INFO L225 Difference]: With dead ends: 920 [2024-10-31 22:02:28,245 INFO L226 Difference]: Without dead ends: 443 [2024-10-31 22:02:28,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:28,247 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 251 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:28,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 922 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:28,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-31 22:02:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 441. [2024-10-31 22:02:28,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 431 states have (on average 1.359628770301624) internal successors, (586), 436 states have internal predecessors, (586), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 22:02:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 592 transitions. [2024-10-31 22:02:28,261 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 592 transitions. Word has length 82 [2024-10-31 22:02:28,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:28,262 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 592 transitions. [2024-10-31 22:02:28,263 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) [2024-10-31 22:02:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 592 transitions. [2024-10-31 22:02:28,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-31 22:02:28,264 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:28,264 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:28,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:02:28,265 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:28,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:28,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1891281422, now seen corresponding path program 1 times [2024-10-31 22:02:28,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:28,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903308477] [2024-10-31 22:02:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:28,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:28,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:02:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:28,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-31 22:02:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:02:28,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:28,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903308477] [2024-10-31 22:02:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903308477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:28,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:28,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:02:28,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855649488] [2024-10-31 22:02:28,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:28,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:02:28,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:28,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:02:28,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:02:28,880 INFO L87 Difference]: Start difference. First operand 441 states and 592 transitions. Second operand has 5 states, 4 states have (on average 22.5) 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) [2024-10-31 22:02:29,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:29,266 INFO L93 Difference]: Finished difference Result 703 states and 955 transitions. [2024-10-31 22:02:29,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:02:29,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) 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 [2024-10-31 22:02:29,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:29,271 INFO L225 Difference]: With dead ends: 703 [2024-10-31 22:02:29,271 INFO L226 Difference]: Without dead ends: 701 [2024-10-31 22:02:29,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:29,272 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 371 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:29,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1753 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:02:29,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-10-31 22:02:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 505. [2024-10-31 22:02:29,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 492 states have (on average 1.3495934959349594) internal successors, (664), 497 states have internal predecessors, (664), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:02:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 676 transitions. [2024-10-31 22:02:29,289 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 676 transitions. Word has length 97 [2024-10-31 22:02:29,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:29,290 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 676 transitions. [2024-10-31 22:02:29,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) 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) [2024-10-31 22:02:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 676 transitions. [2024-10-31 22:02:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-31 22:02:29,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:29,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:29,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:02:29,292 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:29,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:29,292 INFO L85 PathProgramCache]: Analyzing trace with hash 587928529, now seen corresponding path program 1 times [2024-10-31 22:02:29,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:29,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510659092] [2024-10-31 22:02:29,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:29,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:29,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:02:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:29,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-31 22:02:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:02:29,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:29,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510659092] [2024-10-31 22:02:29,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510659092] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:29,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729105886] [2024-10-31 22:02:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:29,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:29,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:29,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:29,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:02:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:30,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-10-31 22:02:30,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:30,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:30,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:30,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-31 22:02:31,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:02:31,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:31,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729105886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:31,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:02:31,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-10-31 22:02:31,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728320929] [2024-10-31 22:02:31,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:31,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:02:31,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:31,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:02:31,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:02:31,631 INFO L87 Difference]: Start difference. First operand 505 states and 676 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:02:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:33,259 INFO L93 Difference]: Finished difference Result 1162 states and 1576 transitions. [2024-10-31 22:02:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:02:33,260 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 103 [2024-10-31 22:02:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:33,263 INFO L225 Difference]: With dead ends: 1162 [2024-10-31 22:02:33,263 INFO L226 Difference]: Without dead ends: 698 [2024-10-31 22:02:33,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=101, Invalid=361, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:02:33,265 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 550 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 2396 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:33,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 2396 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-31 22:02:33,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-10-31 22:02:33,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 505. [2024-10-31 22:02:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 492 states have (on average 1.3475609756097562) internal successors, (663), 497 states have internal predecessors, (663), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 22:02:33,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 675 transitions. [2024-10-31 22:02:33,289 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 675 transitions. Word has length 103 [2024-10-31 22:02:33,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:33,289 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 675 transitions. [2024-10-31 22:02:33,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 11 states have internal predecessors, (96), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:02:33,290 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 675 transitions. [2024-10-31 22:02:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-31 22:02:33,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:33,291 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:33,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:02:33,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:02:33,492 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:33,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:33,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1412463254, now seen corresponding path program 1 times [2024-10-31 22:02:33,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:33,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506589931] [2024-10-31 22:02:33,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:33,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:33,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-31 22:02:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:33,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:02:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:02:33,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:33,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506589931] [2024-10-31 22:02:33,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506589931] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:33,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508040872] [2024-10-31 22:02:33,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:33,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:33,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:33,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:33,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:02:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:34,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:02:34,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:34,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:34,850 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:34,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508040872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:34,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:02:34,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2024-10-31 22:02:34,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344501863] [2024-10-31 22:02:34,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:34,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:34,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:34,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:34,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:02:34,854 INFO L87 Difference]: Start difference. First operand 505 states and 675 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-10-31 22:02:35,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:35,038 INFO L93 Difference]: Finished difference Result 922 states and 1241 transitions. [2024-10-31 22:02:35,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:35,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 104 [2024-10-31 22:02:35,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:35,042 INFO L225 Difference]: With dead ends: 922 [2024-10-31 22:02:35,042 INFO L226 Difference]: Without dead ends: 508 [2024-10-31 22:02:35,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:02:35,044 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 188 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:35,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 2466 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-10-31 22:02:35,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-10-31 22:02:35,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 494 states have (on average 1.3481781376518218) internal successors, (666), 500 states have internal predecessors, (666), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-10-31 22:02:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 680 transitions. [2024-10-31 22:02:35,072 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 680 transitions. Word has length 104 [2024-10-31 22:02:35,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:35,072 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 680 transitions. [2024-10-31 22:02:35,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2024-10-31 22:02:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 680 transitions. [2024-10-31 22:02:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-31 22:02:35,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:35,075 INFO L215 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] [2024-10-31 22:02:35,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:35,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:35,279 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:35,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:35,280 INFO L85 PathProgramCache]: Analyzing trace with hash -43562252, now seen corresponding path program 1 times [2024-10-31 22:02:35,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:35,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087562184] [2024-10-31 22:02:35,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:35,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:35,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-31 22:02:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:36,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-31 22:02:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:36,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:02:36,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:36,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087562184] [2024-10-31 22:02:36,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087562184] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:36,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001744480] [2024-10-31 22:02:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:36,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:36,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:36,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:36,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:02:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:36,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-10-31 22:02:36,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:36,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:36,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:36,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-31 22:02:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-31 22:02:39,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001744480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:39,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:02:39,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2024-10-31 22:02:39,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961598545] [2024-10-31 22:02:39,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:39,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:02:39,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:02:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:02:39,781 INFO L87 Difference]: Start difference. First operand 508 states and 680 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:02:43,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:43,157 INFO L93 Difference]: Finished difference Result 1168 states and 1585 transitions. [2024-10-31 22:02:43,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:02:43,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 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 106 [2024-10-31 22:02:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:43,162 INFO L225 Difference]: With dead ends: 1168 [2024-10-31 22:02:43,162 INFO L226 Difference]: Without dead ends: 701 [2024-10-31 22:02:43,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2024-10-31 22:02:43,165 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 545 mSDsluCounter, 3707 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:43,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 4194 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-31 22:02:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-10-31 22:02:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 508. [2024-10-31 22:02:43,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 494 states have (on average 1.3441295546558705) internal successors, (664), 500 states have internal predecessors, (664), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-10-31 22:02:43,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 678 transitions. [2024-10-31 22:02:43,190 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 678 transitions. Word has length 106 [2024-10-31 22:02:43,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:43,190 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 678 transitions. [2024-10-31 22:02:43,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:02:43,191 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 678 transitions. [2024-10-31 22:02:43,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-31 22:02:43,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:43,192 INFO L215 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, 1] [2024-10-31 22:02:43,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:02:43,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:43,394 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-31 22:02:43,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:43,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2051285295, now seen corresponding path program 1 times [2024-10-31 22:02:43,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:43,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174349162] [2024-10-31 22:02:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:43,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:43,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-31 22:02:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:44,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 22:02:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:02:44,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174349162] [2024-10-31 22:02:44,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174349162] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:02:44,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426966606] [2024-10-31 22:02:44,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:44,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:44,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:44,192 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:44,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a78323f4-fdc4-4e1a-ab57-df1aca2cc017/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:02:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:44,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-31 22:02:44,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:44,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:02:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:02:45,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:02:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:02:45,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426966606] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:02:45,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:02:45,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 9] total 18 [2024-10-31 22:02:45,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403049241] [2024-10-31 22:02:45,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:02:45,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:02:45,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:45,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:02:45,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:02:45,999 INFO L87 Difference]: Start difference. First operand 508 states and 678 transitions. Second operand has 18 states, 18 states have (on average 11.555555555555555) internal successors, (208), 16 states have internal predecessors, (208), 4 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6)