./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX --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 bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:52:11,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:52:11,941 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:52:11,950 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:52:11,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:52:11,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:52:11,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:52:11,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:52:12,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:52:12,002 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:52:12,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:52:12,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:52:12,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:52:12,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:52:12,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:52:12,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:52:12,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:52:12,008 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:52:12,008 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:52:12,008 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:52:12,009 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:52:12,013 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:52:12,013 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:52:12,013 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:52:12,014 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:52:12,014 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:52:12,014 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:52:12,015 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:52:12,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:52:12,015 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:52:12,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:52:12,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:52:12,016 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:52:12,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:52:12,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:52:12,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:52:12,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:52:12,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:52:12,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:52:12,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:52:12,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:52:12,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:52:12,023 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:52:12,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:52:12,023 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_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2024-11-08 18:52:12,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:52:12,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:52:12,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:52:12,374 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:52:12,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:52:12,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i Unable to find full path for "g++" [2024-11-08 18:52:14,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:52:14,902 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:52:14,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2024-11-08 18:52:14,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/data/84671cad0/6085bd1d4f2d49d993b7061c1a225980/FLAG42b5a170e [2024-11-08 18:52:14,959 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/data/84671cad0/6085bd1d4f2d49d993b7061c1a225980 [2024-11-08 18:52:14,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:52:14,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:52:14,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:52:14,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:52:14,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:52:14,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:52:14" (1/1) ... [2024-11-08 18:52:14,979 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168c54ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:14, skipping insertion in model container [2024-11-08 18:52:14,979 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:52:14" (1/1) ... [2024-11-08 18:52:15,065 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:52:16,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:52:16,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:52:16,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:52:16,274 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:52:16,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16 WrapperNode [2024-11-08 18:52:16,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:52:16,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:52:16,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:52:16,276 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:52:16,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,437 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1617 [2024-11-08 18:52:16,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:52:16,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:52:16,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:52:16,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:52:16,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,629 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2024-11-08 18:52:16,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:52:16,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:52:16,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:52:16,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:52:16,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (1/1) ... [2024-11-08 18:52:16,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:52:16,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:16,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:52:16,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:52:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-08 18:52:16,938 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-08 18:52:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:52:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:52:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-08 18:52:16,939 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:52:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:52:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:52:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 18:52:16,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 18:52:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:52:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:52:16,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:52:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:52:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:52:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:52:16,944 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-08 18:52:16,945 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-08 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:52:16,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 18:52:16,946 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-08 18:52:16,947 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-08 18:52:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:52:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:52:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:52:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:52:16,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:52:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:52:17,300 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:52:17,302 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:52:19,537 INFO L? ?]: Removed 381 outVars from TransFormulas that were not future-live. [2024-11-08 18:52:19,538 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:52:19,573 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:52:19,573 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-08 18:52:19,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:19 BoogieIcfgContainer [2024-11-08 18:52:19,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:52:19,580 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:52:19,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:52:19,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:52:19,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:52:14" (1/3) ... [2024-11-08 18:52:19,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7b5639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:52:19, skipping insertion in model container [2024-11-08 18:52:19,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:52:16" (2/3) ... [2024-11-08 18:52:19,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f7b5639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:52:19, skipping insertion in model container [2024-11-08 18:52:19,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:52:19" (3/3) ... [2024-11-08 18:52:19,590 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2024-11-08 18:52:19,612 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:52:19,612 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-08 18:52:19,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:52:19,717 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;@2e0c2fb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:52:19,717 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-08 18:52:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 506 states, 467 states have (on average 1.5995717344753748) internal successors, (747), 484 states have internal predecessors, (747), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 18:52:19,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:52:19,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:19,737 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:19,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:19,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:19,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-08 18:52:19,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:19,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183364732] [2024-11-08 18:52:19,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:19,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:20,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:20,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183364732] [2024-11-08 18:52:20,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183364732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:20,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:20,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:52:20,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442278061] [2024-11-08 18:52:20,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:20,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:52:20,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:20,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:52:20,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:52:20,062 INFO L87 Difference]: Start difference. First operand has 506 states, 467 states have (on average 1.5995717344753748) internal successors, (747), 484 states have internal predecessors, (747), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) 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) [2024-11-08 18:52:20,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:20,179 INFO L93 Difference]: Finished difference Result 1005 states and 1579 transitions. [2024-11-08 18:52:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:52:20,185 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 [2024-11-08 18:52:20,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:20,205 INFO L225 Difference]: With dead ends: 1005 [2024-11-08 18:52:20,206 INFO L226 Difference]: Without dead ends: 492 [2024-11-08 18:52:20,212 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 [2024-11-08 18:52:20,216 INFO L432 NwaCegarLoop]: 706 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, 706 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 [2024-11-08 18:52:20,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:52:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-08 18:52:20,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2024-11-08 18:52:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 459 states have (on average 1.4444444444444444) internal successors, (663), 473 states have internal predecessors, (663), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:52:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 693 transitions. [2024-11-08 18:52:20,319 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 693 transitions. Word has length 8 [2024-11-08 18:52:20,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:20,319 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 693 transitions. [2024-11-08 18:52:20,319 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) [2024-11-08 18:52:20,320 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 693 transitions. [2024-11-08 18:52:20,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:52:20,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:20,320 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:20,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:52:20,321 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:20,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:20,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-08 18:52:20,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:20,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329272055] [2024-11-08 18:52:20,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:20,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:20,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:52:20,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598622800] [2024-11-08 18:52:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:20,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:20,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:20,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:20,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:52:20,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:20,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:52:20,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:20,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:52:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:20,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:20,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:20,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329272055] [2024-11-08 18:52:20,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:52:20,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598622800] [2024-11-08 18:52:20,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598622800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:20,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:20,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:52:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153177894] [2024-11-08 18:52:20,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:20,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:20,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:20,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:20,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:20,801 INFO L87 Difference]: Start difference. First operand 492 states and 693 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) [2024-11-08 18:52:21,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:21,125 INFO L93 Difference]: Finished difference Result 950 states and 1353 transitions. [2024-11-08 18:52:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:21,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-08 18:52:21,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:21,132 INFO L225 Difference]: With dead ends: 950 [2024-11-08 18:52:21,133 INFO L226 Difference]: Without dead ends: 948 [2024-11-08 18:52:21,134 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 [2024-11-08 18:52:21,135 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 624 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:21,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 2070 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:52:21,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-08 18:52:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 499. [2024-11-08 18:52:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 466 states have (on average 1.4399141630901287) internal successors, (671), 480 states have internal predecessors, (671), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:52:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 701 transitions. [2024-11-08 18:52:21,216 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 701 transitions. Word has length 8 [2024-11-08 18:52:21,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:21,217 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 701 transitions. [2024-11-08 18:52:21,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:21,217 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 701 transitions. [2024-11-08 18:52:21,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:52:21,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:21,219 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:21,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:52:21,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:21,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:21,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:21,421 INFO L85 PathProgramCache]: Analyzing trace with hash -435525634, now seen corresponding path program 1 times [2024-11-08 18:52:21,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:21,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479852518] [2024-11-08 18:52:21,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:21,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:21,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 18:52:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:21,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:52:21,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:21,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 18:52:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:52:21,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:21,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479852518] [2024-11-08 18:52:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479852518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:21,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:21,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:52:21,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505519541] [2024-11-08 18:52:21,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:21,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:21,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:21,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:21,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:21,738 INFO L87 Difference]: Start difference. First operand 499 states and 701 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:52:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:21,964 INFO L93 Difference]: Finished difference Result 1205 states and 1714 transitions. [2024-11-08 18:52:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:21,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2024-11-08 18:52:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:21,971 INFO L225 Difference]: With dead ends: 1205 [2024-11-08 18:52:21,972 INFO L226 Difference]: Without dead ends: 947 [2024-11-08 18:52:21,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:21,975 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 626 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:21,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 2102 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:52:21,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-08 18:52:22,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 499. [2024-11-08 18:52:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 466 states have (on average 1.4377682403433476) internal successors, (670), 480 states have internal predecessors, (670), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:52:22,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 700 transitions. [2024-11-08 18:52:22,014 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 700 transitions. Word has length 35 [2024-11-08 18:52:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:22,014 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 700 transitions. [2024-11-08 18:52:22,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:52:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 700 transitions. [2024-11-08 18:52:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 18:52:22,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:22,017 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] [2024-11-08 18:52:22,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:52:22,019 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:22,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:22,020 INFO L85 PathProgramCache]: Analyzing trace with hash -131951293, now seen corresponding path program 1 times [2024-11-08 18:52:22,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:22,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333364243] [2024-11-08 18:52:22,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:22,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:22,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:22,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333364243] [2024-11-08 18:52:22,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333364243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:22,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:22,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:52:22,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840107962] [2024-11-08 18:52:22,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:22,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:22,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:22,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:22,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:22,397 INFO L87 Difference]: Start difference. First operand 499 states and 700 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:22,525 INFO L93 Difference]: Finished difference Result 992 states and 1394 transitions. [2024-11-08 18:52:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-08 18:52:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:22,530 INFO L225 Difference]: With dead ends: 992 [2024-11-08 18:52:22,531 INFO L226 Difference]: Without dead ends: 502 [2024-11-08 18:52:22,532 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 [2024-11-08 18:52:22,534 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 107 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1896 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:22,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1896 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:22,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-08 18:52:22,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 499. [2024-11-08 18:52:22,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 466 states have (on average 1.4227467811158798) internal successors, (663), 480 states have internal predecessors, (663), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-08 18:52:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 693 transitions. [2024-11-08 18:52:22,561 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 693 transitions. Word has length 64 [2024-11-08 18:52:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:22,562 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 693 transitions. [2024-11-08 18:52:22,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:22,562 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 693 transitions. [2024-11-08 18:52:22,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 18:52:22,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:22,564 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] [2024-11-08 18:52:22,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:52:22,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:22,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:22,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1196151241, now seen corresponding path program 1 times [2024-11-08 18:52:22,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:22,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881371759] [2024-11-08 18:52:22,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:22,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:22,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:22,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:22,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881371759] [2024-11-08 18:52:22,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881371759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:22,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:22,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:52:22,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105797574] [2024-11-08 18:52:22,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:22,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:22,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:22,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:22,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:22,974 INFO L87 Difference]: Start difference. First operand 499 states and 693 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:23,078 INFO L93 Difference]: Finished difference Result 918 states and 1286 transitions. [2024-11-08 18:52:23,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:52:23,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-08 18:52:23,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:23,087 INFO L225 Difference]: With dead ends: 918 [2024-11-08 18:52:23,088 INFO L226 Difference]: Without dead ends: 914 [2024-11-08 18:52:23,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:23,089 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 524 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:23,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 2038 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:52:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-08 18:52:23,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 906. [2024-11-08 18:52:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 906 states, 865 states have (on average 1.43121387283237) internal successors, (1238), 881 states have internal predecessors, (1238), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 18:52:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 906 states to 906 states and 1282 transitions. [2024-11-08 18:52:23,137 INFO L78 Accepts]: Start accepts. Automaton has 906 states and 1282 transitions. Word has length 64 [2024-11-08 18:52:23,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:23,138 INFO L471 AbstractCegarLoop]: Abstraction has 906 states and 1282 transitions. [2024-11-08 18:52:23,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:23,138 INFO L276 IsEmpty]: Start isEmpty. Operand 906 states and 1282 transitions. [2024-11-08 18:52:23,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 18:52:23,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:23,144 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] [2024-11-08 18:52:23,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:52:23,145 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:23,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:23,145 INFO L85 PathProgramCache]: Analyzing trace with hash -708120708, now seen corresponding path program 1 times [2024-11-08 18:52:23,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:23,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520542673] [2024-11-08 18:52:23,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:23,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:23,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:23,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:23,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:23,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520542673] [2024-11-08 18:52:23,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520542673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:23,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:23,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:52:23,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165132069] [2024-11-08 18:52:23,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:23,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:52:23,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:23,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:52:23,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:52:23,533 INFO L87 Difference]: Start difference. First operand 906 states and 1282 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:52:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:23,820 INFO L93 Difference]: Finished difference Result 1183 states and 1664 transitions. [2024-11-08 18:52:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:23,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-08 18:52:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:23,829 INFO L225 Difference]: With dead ends: 1183 [2024-11-08 18:52:23,829 INFO L226 Difference]: Without dead ends: 1181 [2024-11-08 18:52:23,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:52:23,832 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 580 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:23,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1953 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:52:23,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2024-11-08 18:52:23,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1171. [2024-11-08 18:52:23,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1117 states have (on average 1.4306177260519248) internal successors, (1598), 1134 states have internal predecessors, (1598), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 18:52:23,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1662 transitions. [2024-11-08 18:52:23,884 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1662 transitions. Word has length 74 [2024-11-08 18:52:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:23,885 INFO L471 AbstractCegarLoop]: Abstraction has 1171 states and 1662 transitions. [2024-11-08 18:52:23,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:52:23,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1662 transitions. [2024-11-08 18:52:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:52:23,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:23,887 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 18:52:23,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:52:23,888 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:23,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:23,889 INFO L85 PathProgramCache]: Analyzing trace with hash 653168934, now seen corresponding path program 1 times [2024-11-08 18:52:23,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:23,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559857217] [2024-11-08 18:52:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:23,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:24,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:52:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:24,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:24,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559857217] [2024-11-08 18:52:24,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559857217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:24,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005792812] [2024-11-08 18:52:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:24,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:24,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:24,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:24,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:52:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:24,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:52:24,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:24,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:24,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005792812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:24,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:24,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-08 18:52:24,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458256871] [2024-11-08 18:52:24,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:24,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:52:24,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:24,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:52:24,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:52:24,931 INFO L87 Difference]: Start difference. First operand 1171 states and 1662 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:52:25,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:25,069 INFO L93 Difference]: Finished difference Result 1592 states and 2256 transitions. [2024-11-08 18:52:25,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:52:25,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-08 18:52:25,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:25,078 INFO L225 Difference]: With dead ends: 1592 [2024-11-08 18:52:25,078 INFO L226 Difference]: Without dead ends: 1591 [2024-11-08 18:52:25,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:52:25,080 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 646 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:25,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 2627 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:25,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2024-11-08 18:52:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1541. [2024-11-08 18:52:25,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1480 states have (on average 1.4358108108108107) internal successors, (2125), 1499 states have internal predecessors, (2125), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-08 18:52:25,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2199 transitions. [2024-11-08 18:52:25,142 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2199 transitions. Word has length 83 [2024-11-08 18:52:25,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:25,143 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 2199 transitions. [2024-11-08 18:52:25,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:52:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2199 transitions. [2024-11-08 18:52:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:52:25,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:25,145 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:25,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:52:25,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 18:52:25,349 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:25,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1226599485, now seen corresponding path program 1 times [2024-11-08 18:52:25,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:25,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029514018] [2024-11-08 18:52:25,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:25,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:25,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:52:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:25,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:25,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029514018] [2024-11-08 18:52:25,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029514018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:25,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402222908] [2024-11-08 18:52:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:25,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:25,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:25,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:25,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:52:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:26,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:52:26,362 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:26,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:27,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402222908] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:52:27,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:52:27,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-11-08 18:52:27,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539731708] [2024-11-08 18:52:27,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:52:27,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:52:27,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:27,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:52:27,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:52:27,089 INFO L87 Difference]: Start difference. First operand 1541 states and 2199 transitions. Second operand has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 18:52:30,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:30,323 INFO L93 Difference]: Finished difference Result 4202 states and 5989 transitions. [2024-11-08 18:52:30,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 18:52:30,324 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-08 18:52:30,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:30,342 INFO L225 Difference]: With dead ends: 4202 [2024-11-08 18:52:30,343 INFO L226 Difference]: Without dead ends: 4200 [2024-11-08 18:52:30,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-11-08 18:52:30,347 INFO L432 NwaCegarLoop]: 734 mSDtfsCounter, 3838 mSDsluCounter, 10327 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3863 SdHoareTripleChecker+Valid, 11061 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:30,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3863 Valid, 11061 Invalid, 1081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:52:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2024-11-08 18:52:30,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 3209. [2024-11-08 18:52:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3209 states, 3089 states have (on average 1.428941404985432) internal successors, (4414), 3110 states have internal predecessors, (4414), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-08 18:52:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3209 states to 3209 states and 4603 transitions. [2024-11-08 18:52:30,528 INFO L78 Accepts]: Start accepts. Automaton has 3209 states and 4603 transitions. Word has length 84 [2024-11-08 18:52:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:30,530 INFO L471 AbstractCegarLoop]: Abstraction has 3209 states and 4603 transitions. [2024-11-08 18:52:30,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-08 18:52:30,530 INFO L276 IsEmpty]: Start isEmpty. Operand 3209 states and 4603 transitions. [2024-11-08 18:52:30,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 18:52:30,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:30,534 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] [2024-11-08 18:52:30,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:52:30,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:30,735 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:30,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:30,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1499008231, now seen corresponding path program 1 times [2024-11-08 18:52:30,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:30,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157224992] [2024-11-08 18:52:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:30,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:30,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:30,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157224992] [2024-11-08 18:52:30,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157224992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:30,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:30,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:52:30,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90498686] [2024-11-08 18:52:30,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:30,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:52:30,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:30,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:52:30,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:52:30,919 INFO L87 Difference]: Start difference. First operand 3209 states and 4603 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:31,171 INFO L93 Difference]: Finished difference Result 6678 states and 9612 transitions. [2024-11-08 18:52:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:31,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-08 18:52:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:31,186 INFO L225 Difference]: With dead ends: 6678 [2024-11-08 18:52:31,186 INFO L226 Difference]: Without dead ends: 3478 [2024-11-08 18:52:31,192 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 [2024-11-08 18:52:31,192 INFO L432 NwaCegarLoop]: 917 mSDtfsCounter, 426 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:31,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1567 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3478 states. [2024-11-08 18:52:31,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3478 to 3364. [2024-11-08 18:52:31,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3250 states have (on average 1.4390769230769231) internal successors, (4677), 3270 states have internal predecessors, (4677), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-08 18:52:31,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 4859 transitions. [2024-11-08 18:52:31,322 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 4859 transitions. Word has length 82 [2024-11-08 18:52:31,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:31,323 INFO L471 AbstractCegarLoop]: Abstraction has 3364 states and 4859 transitions. [2024-11-08 18:52:31,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:52:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 4859 transitions. [2024-11-08 18:52:31,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:52:31,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:31,325 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] [2024-11-08 18:52:31,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:52:31,325 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:31,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:31,326 INFO L85 PathProgramCache]: Analyzing trace with hash -657653685, now seen corresponding path program 1 times [2024-11-08 18:52:31,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:31,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723517768] [2024-11-08 18:52:31,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:31,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:52:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:52:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 18:52:31,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723517768] [2024-11-08 18:52:31,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723517768] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124201617] [2024-11-08 18:52:31,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:31,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:31,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:31,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:31,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:52:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:32,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:52:32,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:32,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:32,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 18:52:32,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124201617] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:32,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:52:32,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 4] total 13 [2024-11-08 18:52:32,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014295776] [2024-11-08 18:52:32,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:32,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:32,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:32,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:32,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:52:32,735 INFO L87 Difference]: Start difference. First operand 3364 states and 4859 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 18:52:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:32,900 INFO L93 Difference]: Finished difference Result 3364 states and 4859 transitions. [2024-11-08 18:52:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:52:32,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-11-08 18:52:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:32,914 INFO L225 Difference]: With dead ends: 3364 [2024-11-08 18:52:32,915 INFO L226 Difference]: Without dead ends: 3363 [2024-11-08 18:52:32,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:52:32,918 INFO L432 NwaCegarLoop]: 681 mSDtfsCounter, 1263 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:32,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 681 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:52:32,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2024-11-08 18:52:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 3363. [2024-11-08 18:52:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3250 states have (on average 1.4375384615384614) internal successors, (4672), 3269 states have internal predecessors, (4672), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-08 18:52:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4854 transitions. [2024-11-08 18:52:33,066 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4854 transitions. Word has length 93 [2024-11-08 18:52:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:33,067 INFO L471 AbstractCegarLoop]: Abstraction has 3363 states and 4854 transitions. [2024-11-08 18:52:33,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 18:52:33,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4854 transitions. [2024-11-08 18:52:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:52:33,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:33,069 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] [2024-11-08 18:52:33,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:52:33,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 18:52:33,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:33,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:33,272 INFO L85 PathProgramCache]: Analyzing trace with hash 1087572314, now seen corresponding path program 1 times [2024-11-08 18:52:33,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:33,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096175388] [2024-11-08 18:52:33,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:33,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:33,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:33,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:52:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:33,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:52:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 18:52:33,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:33,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096175388] [2024-11-08 18:52:33,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096175388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:33,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565302516] [2024-11-08 18:52:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:33,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:33,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:33,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:33,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:52:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:34,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:52:34,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:52:34,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:52:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 18:52:34,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565302516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:52:34,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:52:34,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-11-08 18:52:34,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312450665] [2024-11-08 18:52:34,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:52:34,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:52:34,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:52:34,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:52:34,754 INFO L87 Difference]: Start difference. First operand 3363 states and 4854 transitions. Second operand has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-08 18:52:36,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:36,235 INFO L93 Difference]: Finished difference Result 6573 states and 9452 transitions. [2024-11-08 18:52:36,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:52:36,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2024-11-08 18:52:36,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:36,262 INFO L225 Difference]: With dead ends: 6573 [2024-11-08 18:52:36,263 INFO L226 Difference]: Without dead ends: 6572 [2024-11-08 18:52:36,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:52:36,267 INFO L432 NwaCegarLoop]: 644 mSDtfsCounter, 4165 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:36,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4184 Valid, 5474 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:52:36,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6572 states. [2024-11-08 18:52:36,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6572 to 6129. [2024-11-08 18:52:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 5907 states have (on average 1.4330455391907906) internal successors, (8465), 5931 states have internal predecessors, (8465), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-11-08 18:52:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 8821 transitions. [2024-11-08 18:52:36,519 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 8821 transitions. Word has length 94 [2024-11-08 18:52:36,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:36,520 INFO L471 AbstractCegarLoop]: Abstraction has 6129 states and 8821 transitions. [2024-11-08 18:52:36,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-08 18:52:36,524 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 8821 transitions. [2024-11-08 18:52:36,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 18:52:36,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:36,530 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:36,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:52:36,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 18:52:36,731 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:36,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1665662782, now seen corresponding path program 1 times [2024-11-08 18:52:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:36,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626596226] [2024-11-08 18:52:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:36,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:37,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:37,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:52:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:37,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:52:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:37,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:52:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:37,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626596226] [2024-11-08 18:52:37,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626596226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:52:37,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782034147] [2024-11-08 18:52:37,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:37,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:52:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:52:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:52:37,351 INFO L87 Difference]: Start difference. First operand 6129 states and 8821 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:52:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:38,464 INFO L93 Difference]: Finished difference Result 8411 states and 12120 transitions. [2024-11-08 18:52:38,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:52:38,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2024-11-08 18:52:38,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:38,500 INFO L225 Difference]: With dead ends: 8411 [2024-11-08 18:52:38,500 INFO L226 Difference]: Without dead ends: 8409 [2024-11-08 18:52:38,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:52:38,505 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 574 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 2967 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:38,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 2967 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:52:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8409 states. [2024-11-08 18:52:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8409 to 6299. [2024-11-08 18:52:38,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6299 states, 6068 states have (on average 1.4283124588002636) internal successors, (8667), 6093 states have internal predecessors, (8667), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-11-08 18:52:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6299 states to 6299 states and 9044 transitions. [2024-11-08 18:52:38,763 INFO L78 Accepts]: Start accepts. Automaton has 6299 states and 9044 transitions. Word has length 120 [2024-11-08 18:52:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:38,764 INFO L471 AbstractCegarLoop]: Abstraction has 6299 states and 9044 transitions. [2024-11-08 18:52:38,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:52:38,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6299 states and 9044 transitions. [2024-11-08 18:52:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 18:52:38,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:38,767 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:38,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:52:38,767 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:38,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:38,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1001625228, now seen corresponding path program 1 times [2024-11-08 18:52:38,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:38,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567556727] [2024-11-08 18:52:38,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:38,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:52:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:52:39,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:52:39,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:52:39,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567556727] [2024-11-08 18:52:39,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567556727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:39,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254016815] [2024-11-08 18:52:39,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:39,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:39,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:39,453 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:39,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:52:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:39,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:52:39,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 18:52:40,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254016815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:40,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:40,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-08 18:52:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958252335] [2024-11-08 18:52:40,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:40,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:52:40,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:52:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:52:40,145 INFO L87 Difference]: Start difference. First operand 6299 states and 9044 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:52:40,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:40,654 INFO L93 Difference]: Finished difference Result 11941 states and 17186 transitions. [2024-11-08 18:52:40,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:52:40,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-11-08 18:52:40,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:40,679 INFO L225 Difference]: With dead ends: 11941 [2024-11-08 18:52:40,679 INFO L226 Difference]: Without dead ends: 6048 [2024-11-08 18:52:40,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:52:40,689 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 163 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 3859 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:40,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 3859 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:52:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2024-11-08 18:52:40,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 6048. [2024-11-08 18:52:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6048 states, 5834 states have (on average 1.4314364072677408) internal successors, (8351), 5857 states have internal predecessors, (8351), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:52:40,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6048 states to 6048 states and 8700 transitions. [2024-11-08 18:52:40,916 INFO L78 Accepts]: Start accepts. Automaton has 6048 states and 8700 transitions. Word has length 127 [2024-11-08 18:52:40,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:40,917 INFO L471 AbstractCegarLoop]: Abstraction has 6048 states and 8700 transitions. [2024-11-08 18:52:40,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:52:40,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6048 states and 8700 transitions. [2024-11-08 18:52:40,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 18:52:40,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:40,921 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:40,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:52:41,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 18:52:41,125 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:41,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:41,125 INFO L85 PathProgramCache]: Analyzing trace with hash -205128437, now seen corresponding path program 1 times [2024-11-08 18:52:41,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:41,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480043036] [2024-11-08 18:52:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:41,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:41,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:52:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:52:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:52:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 18:52:41,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 18:52:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:52:41,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:41,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480043036] [2024-11-08 18:52:41,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480043036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:41,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280587839] [2024-11-08 18:52:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:41,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:41,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:41,974 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:41,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:52:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:42,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 18:52:42,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:42,851 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:42,851 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:42,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280587839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:42,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:42,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-08 18:52:42,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482258365] [2024-11-08 18:52:42,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:42,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:52:42,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:42,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:52:42,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:52:42,854 INFO L87 Difference]: Start difference. First operand 6048 states and 8700 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:52:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:44,384 INFO L93 Difference]: Finished difference Result 12526 states and 17989 transitions. [2024-11-08 18:52:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:52:44,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-08 18:52:44,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:44,401 INFO L225 Difference]: With dead ends: 12526 [2024-11-08 18:52:44,401 INFO L226 Difference]: Without dead ends: 6568 [2024-11-08 18:52:44,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:52:44,410 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 17 mSDsluCounter, 2650 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:44,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3314 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:52:44,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6568 states. [2024-11-08 18:52:44,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6568 to 6516. [2024-11-08 18:52:44,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6516 states, 6302 states have (on average 1.4179625515709298) internal successors, (8936), 6325 states have internal predecessors, (8936), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:52:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6516 states to 6516 states and 9285 transitions. [2024-11-08 18:52:44,645 INFO L78 Accepts]: Start accepts. Automaton has 6516 states and 9285 transitions. Word has length 132 [2024-11-08 18:52:44,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:44,646 INFO L471 AbstractCegarLoop]: Abstraction has 6516 states and 9285 transitions. [2024-11-08 18:52:44,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:52:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6516 states and 9285 transitions. [2024-11-08 18:52:44,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 18:52:44,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:44,648 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:44,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:52:44,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 18:52:44,853 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:44,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:44,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1217256587, now seen corresponding path program 1 times [2024-11-08 18:52:44,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:44,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191993029] [2024-11-08 18:52:44,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:44,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:45,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:52:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:45,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:52:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:45,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 18:52:45,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:45,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 18:52:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:45,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 18:52:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:45,449 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:45,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:45,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191993029] [2024-11-08 18:52:45,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191993029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:45,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:45,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:52:45,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402637056] [2024-11-08 18:52:45,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:45,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:52:45,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:45,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:52:45,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:52:45,453 INFO L87 Difference]: Start difference. First operand 6516 states and 9285 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:52:47,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:47,204 INFO L93 Difference]: Finished difference Result 13000 states and 18552 transitions. [2024-11-08 18:52:47,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:52:47,204 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-08 18:52:47,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:47,224 INFO L225 Difference]: With dead ends: 13000 [2024-11-08 18:52:47,225 INFO L226 Difference]: Without dead ends: 6620 [2024-11-08 18:52:47,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:52:47,236 INFO L432 NwaCegarLoop]: 637 mSDtfsCounter, 59 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:47,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4248 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:52:47,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6620 states. [2024-11-08 18:52:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6620 to 6568. [2024-11-08 18:52:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6568 states, 6354 states have (on average 1.4186339313818068) internal successors, (9014), 6377 states have internal predecessors, (9014), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:52:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6568 states to 6568 states and 9363 transitions. [2024-11-08 18:52:47,462 INFO L78 Accepts]: Start accepts. Automaton has 6568 states and 9363 transitions. Word has length 133 [2024-11-08 18:52:47,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:47,463 INFO L471 AbstractCegarLoop]: Abstraction has 6568 states and 9363 transitions. [2024-11-08 18:52:47,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:52:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6568 states and 9363 transitions. [2024-11-08 18:52:47,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 18:52:47,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:47,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:47,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:52:47,466 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:47,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:47,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1064789129, now seen corresponding path program 1 times [2024-11-08 18:52:47,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:47,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495847613] [2024-11-08 18:52:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:47,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:48,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:52:48,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:48,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:52:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:48,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:52:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:48,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:52:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:48,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 18:52:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:48,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:48,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495847613] [2024-11-08 18:52:48,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495847613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:48,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:48,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:52:48,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031183449] [2024-11-08 18:52:48,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:48,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:52:48,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:52:48,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:52:48,291 INFO L87 Difference]: Start difference. First operand 6568 states and 9363 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:52:50,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:50,287 INFO L93 Difference]: Finished difference Result 13287 states and 18955 transitions. [2024-11-08 18:52:50,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:52:50,288 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-08 18:52:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:50,306 INFO L225 Difference]: With dead ends: 13287 [2024-11-08 18:52:50,306 INFO L226 Difference]: Without dead ends: 6854 [2024-11-08 18:52:50,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:52:50,315 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 83 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 5347 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:50,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 5347 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:52:50,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6854 states. [2024-11-08 18:52:50,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6854 to 6724. [2024-11-08 18:52:50,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6724 states, 6510 states have (on average 1.4185867895545314) internal successors, (9235), 6533 states have internal predecessors, (9235), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:52:50,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 9584 transitions. [2024-11-08 18:52:50,544 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 9584 transitions. Word has length 134 [2024-11-08 18:52:50,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:50,544 INFO L471 AbstractCegarLoop]: Abstraction has 6724 states and 9584 transitions. [2024-11-08 18:52:50,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:52:50,545 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 9584 transitions. [2024-11-08 18:52:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 18:52:50,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:50,547 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:50,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:52:50,547 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:50,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:50,548 INFO L85 PathProgramCache]: Analyzing trace with hash 152746896, now seen corresponding path program 1 times [2024-11-08 18:52:50,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:50,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801114541] [2024-11-08 18:52:50,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:50,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:52:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:52:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:52:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 18:52:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 18:52:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,170 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:52:51,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:51,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801114541] [2024-11-08 18:52:51,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801114541] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:52:51,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348547303] [2024-11-08 18:52:51,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:51,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:52:51,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:52:51,174 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:52:51,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:52:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:51,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 18:52:51,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:52:51,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:52:51,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:52:51,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-08 18:52:52,965 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:52,966 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:52:52,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348547303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:52,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:52:52,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2024-11-08 18:52:52,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882199700] [2024-11-08 18:52:52,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:52,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:52:52,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:52,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:52:52,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:52:52,969 INFO L87 Difference]: Start difference. First operand 6724 states and 9584 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:52:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:56,064 INFO L93 Difference]: Finished difference Result 15432 states and 22057 transitions. [2024-11-08 18:52:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:52:56,065 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-08 18:52:56,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:56,092 INFO L225 Difference]: With dead ends: 15432 [2024-11-08 18:52:56,092 INFO L226 Difference]: Without dead ends: 8842 [2024-11-08 18:52:56,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:52:56,104 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 896 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:56,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 4312 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 18:52:56,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8842 states. [2024-11-08 18:52:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8842 to 6712. [2024-11-08 18:52:56,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6712 states, 6498 states have (on average 1.4184364419821482) internal successors, (9217), 6521 states have internal predecessors, (9217), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:52:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6712 states to 6712 states and 9566 transitions. [2024-11-08 18:52:56,353 INFO L78 Accepts]: Start accepts. Automaton has 6712 states and 9566 transitions. Word has length 134 [2024-11-08 18:52:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:56,354 INFO L471 AbstractCegarLoop]: Abstraction has 6712 states and 9566 transitions. [2024-11-08 18:52:56,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:52:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 6712 states and 9566 transitions. [2024-11-08 18:52:56,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 18:52:56,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:56,357 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:56,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:52:56,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 18:52:56,561 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:56,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:56,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1565949444, now seen corresponding path program 1 times [2024-11-08 18:52:56,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:56,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558512890] [2024-11-08 18:52:56,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:56,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:57,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 18:52:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:57,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:52:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:57,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 18:52:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:57,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 18:52:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:57,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:52:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:57,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558512890] [2024-11-08 18:52:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558512890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:57,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:57,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:52:57,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756881080] [2024-11-08 18:52:57,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:57,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:52:57,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:57,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:52:57,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:52:57,168 INFO L87 Difference]: Start difference. First operand 6712 states and 9566 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:52:58,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:52:58,880 INFO L93 Difference]: Finished difference Result 13538 states and 19289 transitions. [2024-11-08 18:52:58,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:52:58,880 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-11-08 18:52:58,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:52:58,905 INFO L225 Difference]: With dead ends: 13538 [2024-11-08 18:52:58,905 INFO L226 Difference]: Without dead ends: 6959 [2024-11-08 18:52:58,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:52:58,916 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 66 mSDsluCounter, 4719 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:52:58,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 5351 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:52:58,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2024-11-08 18:52:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6794. [2024-11-08 18:52:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6794 states, 6580 states have (on average 1.4173252279635258) internal successors, (9326), 6603 states have internal predecessors, (9326), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:52:59,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 9675 transitions. [2024-11-08 18:52:59,153 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 9675 transitions. Word has length 136 [2024-11-08 18:52:59,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:52:59,154 INFO L471 AbstractCegarLoop]: Abstraction has 6794 states and 9675 transitions. [2024-11-08 18:52:59,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:52:59,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 9675 transitions. [2024-11-08 18:52:59,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:52:59,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:52:59,157 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:52:59,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:52:59,157 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:52:59,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:52:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash 868973173, now seen corresponding path program 1 times [2024-11-08 18:52:59,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:52:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426404043] [2024-11-08 18:52:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:52:59,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:52:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:59,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:52:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:59,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:52:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:59,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:52:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:59,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:52:59,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:59,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:52:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:52:59,704 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:52:59,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:52:59,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426404043] [2024-11-08 18:52:59,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426404043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:52:59,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:52:59,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:52:59,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869690551] [2024-11-08 18:52:59,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:52:59,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:52:59,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:52:59,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:52:59,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:52:59,709 INFO L87 Difference]: Start difference. First operand 6794 states and 9675 transitions. Second operand has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:53:00,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:00,959 INFO L93 Difference]: Finished difference Result 13443 states and 19150 transitions. [2024-11-08 18:53:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:53:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 137 [2024-11-08 18:53:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:00,977 INFO L225 Difference]: With dead ends: 13443 [2024-11-08 18:53:00,977 INFO L226 Difference]: Without dead ends: 6794 [2024-11-08 18:53:00,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:53:00,988 INFO L432 NwaCegarLoop]: 643 mSDtfsCounter, 53 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:00,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3763 Invalid, 993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:53:00,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6794 states. [2024-11-08 18:53:01,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6794 to 6794. [2024-11-08 18:53:01,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6794 states, 6580 states have (on average 1.4153495440729482) internal successors, (9313), 6603 states have internal predecessors, (9313), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:53:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6794 states to 6794 states and 9662 transitions. [2024-11-08 18:53:01,202 INFO L78 Accepts]: Start accepts. Automaton has 6794 states and 9662 transitions. Word has length 137 [2024-11-08 18:53:01,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:01,203 INFO L471 AbstractCegarLoop]: Abstraction has 6794 states and 9662 transitions. [2024-11-08 18:53:01,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.5) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:53:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 6794 states and 9662 transitions. [2024-11-08 18:53:01,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:53:01,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:01,205 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:01,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 18:53:01,206 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:01,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 236518802, now seen corresponding path program 1 times [2024-11-08 18:53:01,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:01,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924566132] [2024-11-08 18:53:01,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:01,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:01,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:01,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:01,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:01,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:01,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:53:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:01,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:53:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:53:01,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924566132] [2024-11-08 18:53:01,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924566132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:01,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:01,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:53:01,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616835306] [2024-11-08 18:53:01,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:01,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:53:01,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:53:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:53:01,923 INFO L87 Difference]: Start difference. First operand 6794 states and 9662 transitions. Second operand has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:53:03,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:03,614 INFO L93 Difference]: Finished difference Result 13603 states and 19360 transitions. [2024-11-08 18:53:03,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:53:03,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 137 [2024-11-08 18:53:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:03,633 INFO L225 Difference]: With dead ends: 13603 [2024-11-08 18:53:03,634 INFO L226 Difference]: Without dead ends: 6959 [2024-11-08 18:53:03,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:53:03,644 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 71 mSDsluCounter, 4670 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 5310 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:03,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 5310 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:53:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6959 states. [2024-11-08 18:53:03,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6959 to 6881. [2024-11-08 18:53:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6667 states have (on average 1.4117294135293235) internal successors, (9412), 6690 states have internal predecessors, (9412), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:53:03,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 9761 transitions. [2024-11-08 18:53:03,985 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 9761 transitions. Word has length 137 [2024-11-08 18:53:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:03,986 INFO L471 AbstractCegarLoop]: Abstraction has 6881 states and 9761 transitions. [2024-11-08 18:53:03,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.666666666666666) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:53:03,987 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 9761 transitions. [2024-11-08 18:53:03,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:53:03,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:03,989 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:03,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:53:03,990 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:03,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1742376110, now seen corresponding path program 1 times [2024-11-08 18:53:03,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:03,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780837153] [2024-11-08 18:53:03,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:03,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:53:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:53:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:53:04,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:04,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780837153] [2024-11-08 18:53:04,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780837153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:04,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63820010] [2024-11-08 18:53:04,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:04,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:04,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:04,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:04,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:53:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:53:05,336 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:05,481 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-08 18:53:05,482 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:05,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63820010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:05,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:05,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-08 18:53:05,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221880379] [2024-11-08 18:53:05,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:05,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:53:05,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:05,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:53:05,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:53:05,484 INFO L87 Difference]: Start difference. First operand 6881 states and 9761 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:06,113 INFO L93 Difference]: Finished difference Result 13786 states and 19580 transitions. [2024-11-08 18:53:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:53:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-08 18:53:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:06,134 INFO L225 Difference]: With dead ends: 13786 [2024-11-08 18:53:06,135 INFO L226 Difference]: Without dead ends: 7063 [2024-11-08 18:53:06,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:53:06,144 INFO L432 NwaCegarLoop]: 660 mSDtfsCounter, 44 mSDsluCounter, 2800 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:06,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3460 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:53:06,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7063 states. [2024-11-08 18:53:06,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7063 to 6972. [2024-11-08 18:53:06,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6972 states, 6758 states have (on average 1.4119562000591892) internal successors, (9542), 6781 states have internal predecessors, (9542), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-08 18:53:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6972 states to 6972 states and 9891 transitions. [2024-11-08 18:53:06,463 INFO L78 Accepts]: Start accepts. Automaton has 6972 states and 9891 transitions. Word has length 137 [2024-11-08 18:53:06,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:06,464 INFO L471 AbstractCegarLoop]: Abstraction has 6972 states and 9891 transitions. [2024-11-08 18:53:06,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:06,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states and 9891 transitions. [2024-11-08 18:53:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-08 18:53:06,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:06,466 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:06,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:53:06,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:06,668 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:06,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1335055161, now seen corresponding path program 1 times [2024-11-08 18:53:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:06,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719713788] [2024-11-08 18:53:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 18:53:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:53:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:53:07,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:07,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719713788] [2024-11-08 18:53:07,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719713788] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:07,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252070674] [2024-11-08 18:53:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:07,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:07,234 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:07,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:53:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:07,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:53:07,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:53:08,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:08,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252070674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:08,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:08,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 13 [2024-11-08 18:53:08,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985139406] [2024-11-08 18:53:08,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:08,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:53:08,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:08,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:53:08,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:53:08,057 INFO L87 Difference]: Start difference. First operand 6972 states and 9891 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-08 18:53:08,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:08,369 INFO L93 Difference]: Finished difference Result 10554 states and 14936 transitions. [2024-11-08 18:53:08,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:53:08,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-08 18:53:08,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:08,385 INFO L225 Difference]: With dead ends: 10554 [2024-11-08 18:53:08,386 INFO L226 Difference]: Without dead ends: 3770 [2024-11-08 18:53:08,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:53:08,395 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 13 mSDsluCounter, 4673 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5346 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:08,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5346 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:53:08,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2024-11-08 18:53:08,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3768. [2024-11-08 18:53:08,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3630 states have (on average 1.4022038567493114) internal successors, (5090), 3646 states have internal predecessors, (5090), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-08 18:53:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5273 transitions. [2024-11-08 18:53:08,546 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5273 transitions. Word has length 137 [2024-11-08 18:53:08,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:08,547 INFO L471 AbstractCegarLoop]: Abstraction has 3768 states and 5273 transitions. [2024-11-08 18:53:08,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-08 18:53:08,547 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5273 transitions. [2024-11-08 18:53:08,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:53:08,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:08,549 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:08,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:08,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:08,750 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:08,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:08,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1794609317, now seen corresponding path program 1 times [2024-11-08 18:53:08,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:08,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442574913] [2024-11-08 18:53:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:08,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:09,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:09,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:09,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:09,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 18:53:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:09,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 18:53:09,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442574913] [2024-11-08 18:53:09,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442574913] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214546923] [2024-11-08 18:53:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:09,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:09,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:09,570 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:09,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:53:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:10,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:53:10,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:10,410 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:53:10,410 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 18:53:10,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214546923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:53:10,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:53:10,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 18 [2024-11-08 18:53:10,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855994388] [2024-11-08 18:53:10,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:53:10,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:53:10,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:10,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:53:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:53:10,642 INFO L87 Difference]: Start difference. First operand 3768 states and 5273 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:53:12,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:12,651 INFO L93 Difference]: Finished difference Result 7411 states and 10395 transitions. [2024-11-08 18:53:12,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 18:53:12,652 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 139 [2024-11-08 18:53:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:12,667 INFO L225 Difference]: With dead ends: 7411 [2024-11-08 18:53:12,667 INFO L226 Difference]: Without dead ends: 3840 [2024-11-08 18:53:12,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=258, Invalid=1382, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 18:53:12,674 INFO L432 NwaCegarLoop]: 649 mSDtfsCounter, 95 mSDsluCounter, 6262 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:12,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 6911 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:53:12,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3840 states. [2024-11-08 18:53:12,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3840 to 3808. [2024-11-08 18:53:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 3669 states have (on average 1.402289452166803) internal successors, (5145), 3682 states have internal predecessors, (5145), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-08 18:53:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5324 transitions. [2024-11-08 18:53:12,883 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5324 transitions. Word has length 139 [2024-11-08 18:53:12,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:12,884 INFO L471 AbstractCegarLoop]: Abstraction has 3808 states and 5324 transitions. [2024-11-08 18:53:12,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:53:12,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5324 transitions. [2024-11-08 18:53:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 18:53:12,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:12,887 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:12,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:13,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-08 18:53:13,088 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:13,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:13,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1405240409, now seen corresponding path program 2 times [2024-11-08 18:53:13,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:13,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294862281] [2024-11-08 18:53:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:13,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:13,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:13,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:13,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:13,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:53:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:14,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:53:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:53:14,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:14,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294862281] [2024-11-08 18:53:14,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294862281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:14,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38186960] [2024-11-08 18:53:14,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:53:14,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:14,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:14,013 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:14,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:53:14,539 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:53:14,539 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:53:14,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:53:14,546 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:14,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:53:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 18:53:14,575 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:14,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38186960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:14,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:14,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2024-11-08 18:53:14,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447901115] [2024-11-08 18:53:14,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:14,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:53:14,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:14,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:53:14,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:53:14,578 INFO L87 Difference]: Start difference. First operand 3808 states and 5324 transitions. Second operand has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:14,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:14,688 INFO L93 Difference]: Finished difference Result 3808 states and 5324 transitions. [2024-11-08 18:53:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:53:14,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 143 [2024-11-08 18:53:14,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:14,701 INFO L225 Difference]: With dead ends: 3808 [2024-11-08 18:53:14,701 INFO L226 Difference]: Without dead ends: 3807 [2024-11-08 18:53:14,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:53:14,704 INFO L432 NwaCegarLoop]: 681 mSDtfsCounter, 1 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1360 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:14,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1360 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:53:14,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2024-11-08 18:53:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3807. [2024-11-08 18:53:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3807 states, 3669 states have (on average 1.400654129190515) internal successors, (5139), 3681 states have internal predecessors, (5139), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-08 18:53:14,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3807 states to 3807 states and 5318 transitions. [2024-11-08 18:53:14,949 INFO L78 Accepts]: Start accepts. Automaton has 3807 states and 5318 transitions. Word has length 143 [2024-11-08 18:53:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:14,950 INFO L471 AbstractCegarLoop]: Abstraction has 3807 states and 5318 transitions. [2024-11-08 18:53:14,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:14,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3807 states and 5318 transitions. [2024-11-08 18:53:14,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-08 18:53:14,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:14,954 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:14,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 18:53:15,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:15,156 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:15,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:15,156 INFO L85 PathProgramCache]: Analyzing trace with hash -612779616, now seen corresponding path program 1 times [2024-11-08 18:53:15,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:15,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245556086] [2024-11-08 18:53:15,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:15,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:15,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:15,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:15,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:16,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 18:53:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:16,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:53:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:16,248 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:53:16,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:16,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245556086] [2024-11-08 18:53:16,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245556086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:16,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823136424] [2024-11-08 18:53:16,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:16,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:16,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:16,251 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:16,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:53:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:16,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 18:53:16,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:17,303 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 18:53:17,303 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:17,748 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:53:17,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823136424] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:53:17,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:53:17,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 9] total 28 [2024-11-08 18:53:17,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771140640] [2024-11-08 18:53:17,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:53:17,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-08 18:53:17,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:17,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-08 18:53:17,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:53:17,751 INFO L87 Difference]: Start difference. First operand 3807 states and 5318 transitions. Second operand has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:53:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:20,590 INFO L93 Difference]: Finished difference Result 7101 states and 9889 transitions. [2024-11-08 18:53:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-08 18:53:20,591 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2024-11-08 18:53:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:20,605 INFO L225 Difference]: With dead ends: 7101 [2024-11-08 18:53:20,605 INFO L226 Difference]: Without dead ends: 3265 [2024-11-08 18:53:20,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2024-11-08 18:53:20,612 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 141 mSDsluCounter, 7514 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 8071 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:20,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 8071 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:53:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-11-08 18:53:20,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3243. [2024-11-08 18:53:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3243 states, 3105 states have (on average 1.3774557165861514) internal successors, (4277), 3117 states have internal predecessors, (4277), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-08 18:53:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3243 states to 3243 states and 4456 transitions. [2024-11-08 18:53:20,790 INFO L78 Accepts]: Start accepts. Automaton has 3243 states and 4456 transitions. Word has length 144 [2024-11-08 18:53:20,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:20,791 INFO L471 AbstractCegarLoop]: Abstraction has 3243 states and 4456 transitions. [2024-11-08 18:53:20,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:53:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3243 states and 4456 transitions. [2024-11-08 18:53:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 18:53:20,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:20,794 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:20,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:53:20,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:20,998 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:20,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:21,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1707694005, now seen corresponding path program 2 times [2024-11-08 18:53:21,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:21,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269255522] [2024-11-08 18:53:21,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:22,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:22,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:22,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:53:22,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:22,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:53:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-08 18:53:22,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:22,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269255522] [2024-11-08 18:53:22,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269255522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:22,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044831562] [2024-11-08 18:53:22,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:53:22,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:22,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:22,829 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:22,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:53:23,631 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:53:23,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:53:23,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:53:23,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:23,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:53:24,358 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 36 treesize of output 13 [2024-11-08 18:53:24,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-08 18:53:24,504 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-08 18:53:24,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:25,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044831562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:25,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:53:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8] total 24 [2024-11-08 18:53:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896758829] [2024-11-08 18:53:25,503 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:53:25,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 18:53:25,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 18:53:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:53:25,506 INFO L87 Difference]: Start difference. First operand 3243 states and 4456 transitions. Second operand has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 18:53:32,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:53:36,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:53:40,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:53:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:40,860 INFO L93 Difference]: Finished difference Result 7512 states and 10401 transitions. [2024-11-08 18:53:40,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 18:53:40,861 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 153 [2024-11-08 18:53:40,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:40,878 INFO L225 Difference]: With dead ends: 7512 [2024-11-08 18:53:40,879 INFO L226 Difference]: Without dead ends: 4394 [2024-11-08 18:53:40,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 177 SyntacticMatches, 7 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=297, Invalid=2355, Unknown=0, NotChecked=0, Total=2652 [2024-11-08 18:53:40,886 INFO L432 NwaCegarLoop]: 731 mSDtfsCounter, 936 mSDsluCounter, 11339 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 73 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 12070 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:40,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 12070 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1844 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2024-11-08 18:53:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4394 states. [2024-11-08 18:53:41,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4394 to 3097. [2024-11-08 18:53:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 2954 states have (on average 1.366621530128639) internal successors, (4037), 2968 states have internal predecessors, (4037), 90 states have call successors, (90), 49 states have call predecessors, (90), 43 states have return successors, (97), 79 states have call predecessors, (97), 90 states have call successors, (97) [2024-11-08 18:53:41,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4224 transitions. [2024-11-08 18:53:41,160 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4224 transitions. Word has length 153 [2024-11-08 18:53:41,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:41,161 INFO L471 AbstractCegarLoop]: Abstraction has 3097 states and 4224 transitions. [2024-11-08 18:53:41,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 18:53:41,162 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4224 transitions. [2024-11-08 18:53:41,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 18:53:41,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:41,164 INFO L215 NwaCegarLoop]: trace histogram [16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:41,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 18:53:41,369 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:41,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 573504453, now seen corresponding path program 1 times [2024-11-08 18:53:41,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:41,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356357628] [2024-11-08 18:53:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 18:53:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 18:53:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-08 18:53:42,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:42,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356357628] [2024-11-08 18:53:42,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356357628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:42,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522143220] [2024-11-08 18:53:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:42,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:42,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:42,380 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:42,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 18:53:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:43,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:53:43,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-08 18:53:43,502 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:53:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-08 18:53:43,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522143220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:53:43,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:53:43,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 10] total 19 [2024-11-08 18:53:43,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410490564] [2024-11-08 18:53:43,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:53:43,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 18:53:43,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:43,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 18:53:43,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:53:43,872 INFO L87 Difference]: Start difference. First operand 3097 states and 4224 transitions. Second operand has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-08 18:53:45,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:45,999 INFO L93 Difference]: Finished difference Result 8105 states and 11377 transitions. [2024-11-08 18:53:46,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 18:53:46,000 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 167 [2024-11-08 18:53:46,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:46,019 INFO L225 Difference]: With dead ends: 8105 [2024-11-08 18:53:46,020 INFO L226 Difference]: Without dead ends: 5904 [2024-11-08 18:53:46,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 342 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=455, Invalid=1105, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 18:53:46,026 INFO L432 NwaCegarLoop]: 1201 mSDtfsCounter, 4611 mSDsluCounter, 8443 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 9644 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:46,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4628 Valid, 9644 Invalid, 1081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [172 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 18:53:46,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2024-11-08 18:53:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5564. [2024-11-08 18:53:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5564 states, 5366 states have (on average 1.4096161013790534) internal successors, (7564), 5384 states have internal predecessors, (7564), 140 states have call successors, (140), 56 states have call predecessors, (140), 49 states have return successors, (141), 123 states have call predecessors, (141), 140 states have call successors, (141) [2024-11-08 18:53:46,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5564 states to 5564 states and 7845 transitions. [2024-11-08 18:53:46,292 INFO L78 Accepts]: Start accepts. Automaton has 5564 states and 7845 transitions. Word has length 167 [2024-11-08 18:53:46,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:46,293 INFO L471 AbstractCegarLoop]: Abstraction has 5564 states and 7845 transitions. [2024-11-08 18:53:46,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-08 18:53:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5564 states and 7845 transitions. [2024-11-08 18:53:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-08 18:53:46,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:46,298 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:46,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 18:53:46,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-08 18:53:46,499 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:46,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:46,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1116211090, now seen corresponding path program 1 times [2024-11-08 18:53:46,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:46,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208626340] [2024-11-08 18:53:46,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:46,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:46,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:46,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:46,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:53:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-08 18:53:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 18:53:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 18:53:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-08 18:53:47,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-08 18:53:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-08 18:53:47,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:47,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208626340] [2024-11-08 18:53:47,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208626340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:47,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:47,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:53:47,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55431480] [2024-11-08 18:53:47,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:47,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:53:47,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:47,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:53:47,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:53:47,123 INFO L87 Difference]: Start difference. First operand 5564 states and 7845 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:53:48,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:48,211 INFO L93 Difference]: Finished difference Result 7058 states and 10001 transitions. [2024-11-08 18:53:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:53:48,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 217 [2024-11-08 18:53:48,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:48,219 INFO L225 Difference]: With dead ends: 7058 [2024-11-08 18:53:48,220 INFO L226 Difference]: Without dead ends: 2457 [2024-11-08 18:53:48,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:53:48,225 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 1963 mSDsluCounter, 2339 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1964 SdHoareTripleChecker+Valid, 2975 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:48,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1964 Valid, 2975 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:53:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2024-11-08 18:53:48,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2448. [2024-11-08 18:53:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2375 states have (on average 1.3978947368421053) internal successors, (3320), 2383 states have internal predecessors, (3320), 46 states have call successors, (46), 22 states have call predecessors, (46), 20 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-08 18:53:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 3412 transitions. [2024-11-08 18:53:48,376 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 3412 transitions. Word has length 217 [2024-11-08 18:53:48,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:48,377 INFO L471 AbstractCegarLoop]: Abstraction has 2448 states and 3412 transitions. [2024-11-08 18:53:48,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:53:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 3412 transitions. [2024-11-08 18:53:48,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-08 18:53:48,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:48,382 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:48,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 18:53:48,382 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:48,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:48,383 INFO L85 PathProgramCache]: Analyzing trace with hash -178608511, now seen corresponding path program 1 times [2024-11-08 18:53:48,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:48,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316161420] [2024-11-08 18:53:48,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:48,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:48,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:48,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316161420] [2024-11-08 18:53:48,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316161420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:48,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:48,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:53:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113945116] [2024-11-08 18:53:48,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:48,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:48,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:48,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:48,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:53:48,750 INFO L87 Difference]: Start difference. First operand 2448 states and 3412 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:49,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:49,288 INFO L93 Difference]: Finished difference Result 3195 states and 4464 transitions. [2024-11-08 18:53:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:53:49,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 216 [2024-11-08 18:53:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:49,298 INFO L225 Difference]: With dead ends: 3195 [2024-11-08 18:53:49,299 INFO L226 Difference]: Without dead ends: 1541 [2024-11-08 18:53:49,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:53:49,301 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 56 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:49,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 2093 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:53:49,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2024-11-08 18:53:49,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1541. [2024-11-08 18:53:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1484 states have (on average 1.3396226415094339) internal successors, (1988), 1491 states have internal predecessors, (1988), 31 states have call successors, (31), 21 states have call predecessors, (31), 19 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-08 18:53:49,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2050 transitions. [2024-11-08 18:53:49,407 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2050 transitions. Word has length 216 [2024-11-08 18:53:49,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:49,408 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 2050 transitions. [2024-11-08 18:53:49,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2050 transitions. [2024-11-08 18:53:49,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-08 18:53:49,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:49,412 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:49,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 18:53:49,413 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:49,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:49,413 INFO L85 PathProgramCache]: Analyzing trace with hash -115488277, now seen corresponding path program 1 times [2024-11-08 18:53:49,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:49,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015236618] [2024-11-08 18:53:49,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:49,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:49,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:49,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:49,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015236618] [2024-11-08 18:53:49,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015236618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:49,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:49,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:53:49,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897181407] [2024-11-08 18:53:49,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:49,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:53:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:49,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:53:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:53:49,840 INFO L87 Difference]: Start difference. First operand 1541 states and 2050 transitions. Second operand has 5 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:53:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:50,653 INFO L93 Difference]: Finished difference Result 1704 states and 2288 transitions. [2024-11-08 18:53:50,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:53:50,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 218 [2024-11-08 18:53:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:50,662 INFO L225 Difference]: With dead ends: 1704 [2024-11-08 18:53:50,662 INFO L226 Difference]: Without dead ends: 1702 [2024-11-08 18:53:50,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:53:50,664 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 346 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:50,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1880 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:53:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-08 18:53:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2024-11-08 18:53:50,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1645 states have (on average 1.350759878419453) internal successors, (2222), 1652 states have internal predecessors, (2222), 31 states have call successors, (31), 21 states have call predecessors, (31), 19 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-08 18:53:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2284 transitions. [2024-11-08 18:53:50,788 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2284 transitions. Word has length 218 [2024-11-08 18:53:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:50,792 INFO L471 AbstractCegarLoop]: Abstraction has 1702 states and 2284 transitions. [2024-11-08 18:53:50,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.25) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 18:53:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2284 transitions. [2024-11-08 18:53:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-08 18:53:50,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:50,800 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:50,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 18:53:50,800 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:50,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1550230349, now seen corresponding path program 1 times [2024-11-08 18:53:50,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:50,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230564329] [2024-11-08 18:53:50,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:50,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:51,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:51,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:51,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:51,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:51,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:51,308 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:51,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:51,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230564329] [2024-11-08 18:53:51,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230564329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791843656] [2024-11-08 18:53:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:51,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:51,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:51,311 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:51,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 18:53:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:52,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:53:52,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-08 18:53:52,288 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:52,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791843656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:52,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:52,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-08 18:53:52,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566034734] [2024-11-08 18:53:52,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:52,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:53:52,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:52,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:53:52,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:53:52,291 INFO L87 Difference]: Start difference. First operand 1702 states and 2284 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:52,456 INFO L93 Difference]: Finished difference Result 2556 states and 3480 transitions. [2024-11-08 18:53:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:53:52,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 230 [2024-11-08 18:53:52,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:52,464 INFO L225 Difference]: With dead ends: 2556 [2024-11-08 18:53:52,464 INFO L226 Difference]: Without dead ends: 1782 [2024-11-08 18:53:52,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:53:52,466 INFO L432 NwaCegarLoop]: 575 mSDtfsCounter, 8 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:52,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1135 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:53:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2024-11-08 18:53:52,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1782. [2024-11-08 18:53:52,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1782 states, 1725 states have (on average 1.3344927536231883) internal successors, (2302), 1732 states have internal predecessors, (2302), 31 states have call successors, (31), 21 states have call predecessors, (31), 19 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-08 18:53:52,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1782 states to 1782 states and 2364 transitions. [2024-11-08 18:53:52,582 INFO L78 Accepts]: Start accepts. Automaton has 1782 states and 2364 transitions. Word has length 230 [2024-11-08 18:53:52,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:52,583 INFO L471 AbstractCegarLoop]: Abstraction has 1782 states and 2364 transitions. [2024-11-08 18:53:52,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:52,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1782 states and 2364 transitions. [2024-11-08 18:53:52,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-08 18:53:52,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:52,586 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:52,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 18:53:52,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:52,789 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:52,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:52,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1483819697, now seen corresponding path program 1 times [2024-11-08 18:53:52,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:52,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236690006] [2024-11-08 18:53:52,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:52,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236690006] [2024-11-08 18:53:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236690006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977571396] [2024-11-08 18:53:53,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:53,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:53,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:53,405 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:53,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-08 18:53:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:54,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 1310 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:53:54,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:54,439 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-08 18:53:54,439 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:54,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977571396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:54,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:54,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-08 18:53:54,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059643196] [2024-11-08 18:53:54,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:54,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:53:54,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:54,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:53:54,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:53:54,442 INFO L87 Difference]: Start difference. First operand 1782 states and 2364 transitions. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:54,650 INFO L93 Difference]: Finished difference Result 2544 states and 3410 transitions. [2024-11-08 18:53:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:53:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 230 [2024-11-08 18:53:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:54,659 INFO L225 Difference]: With dead ends: 2544 [2024-11-08 18:53:54,659 INFO L226 Difference]: Without dead ends: 1726 [2024-11-08 18:53:54,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:53:54,662 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 107 mSDsluCounter, 1037 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:54,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1602 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:53:54,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2024-11-08 18:53:54,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1726. [2024-11-08 18:53:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1669 states have (on average 1.32893948472139) internal successors, (2218), 1676 states have internal predecessors, (2218), 31 states have call successors, (31), 21 states have call predecessors, (31), 19 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-08 18:53:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2280 transitions. [2024-11-08 18:53:54,773 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2280 transitions. Word has length 230 [2024-11-08 18:53:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:54,773 INFO L471 AbstractCegarLoop]: Abstraction has 1726 states and 2280 transitions. [2024-11-08 18:53:54,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2280 transitions. [2024-11-08 18:53:54,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-08 18:53:54,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:54,777 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:54,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-08 18:53:54,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:54,978 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:54,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:54,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1049612095, now seen corresponding path program 1 times [2024-11-08 18:53:54,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:54,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215835702] [2024-11-08 18:53:54,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:54,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:55,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:55,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:55,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:55,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:55,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:55,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:55,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:55,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:55,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215835702] [2024-11-08 18:53:55,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215835702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:55,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807818444] [2024-11-08 18:53:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:55,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:55,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:55,457 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:55,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-08 18:53:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:56,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:53:56,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:53:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:56,808 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:53:56,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807818444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:56,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:53:56,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-08 18:53:56,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966793560] [2024-11-08 18:53:56,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:56,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:53:56,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:56,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:53:56,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:53:56,812 INFO L87 Difference]: Start difference. First operand 1726 states and 2280 transitions. Second operand has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:56,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:56,981 INFO L93 Difference]: Finished difference Result 1726 states and 2280 transitions. [2024-11-08 18:53:56,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:53:56,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 230 [2024-11-08 18:53:56,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:56,989 INFO L225 Difference]: With dead ends: 1726 [2024-11-08 18:53:56,989 INFO L226 Difference]: Without dead ends: 1725 [2024-11-08 18:53:56,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:53:56,991 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 608 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:56,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 1248 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:53:56,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-11-08 18:53:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2024-11-08 18:53:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1669 states have (on average 1.3271420011983224) internal successors, (2215), 1675 states have internal predecessors, (2215), 31 states have call successors, (31), 21 states have call predecessors, (31), 19 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-08 18:53:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2277 transitions. [2024-11-08 18:53:57,116 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2277 transitions. Word has length 230 [2024-11-08 18:53:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:57,117 INFO L471 AbstractCegarLoop]: Abstraction has 1725 states and 2277 transitions. [2024-11-08 18:53:57,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2277 transitions. [2024-11-08 18:53:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-08 18:53:57,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:57,120 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:57,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-08 18:53:57,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:57,321 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:57,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:57,322 INFO L85 PathProgramCache]: Analyzing trace with hash 726548261, now seen corresponding path program 1 times [2024-11-08 18:53:57,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:57,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024470584] [2024-11-08 18:53:57,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:57,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2024-11-08 18:53:57,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:57,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024470584] [2024-11-08 18:53:57,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024470584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:57,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:57,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:53:57,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221039845] [2024-11-08 18:53:57,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:57,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:53:57,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:57,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:53:57,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:53:57,986 INFO L87 Difference]: Start difference. First operand 1725 states and 2277 transitions. Second operand has 7 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:58,799 INFO L93 Difference]: Finished difference Result 1813 states and 2390 transitions. [2024-11-08 18:53:58,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:53:58,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 230 [2024-11-08 18:53:58,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:58,805 INFO L225 Difference]: With dead ends: 1813 [2024-11-08 18:53:58,805 INFO L226 Difference]: Without dead ends: 1812 [2024-11-08 18:53:58,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:53:58,807 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 429 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:58,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 2841 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:53:58,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-11-08 18:53:58,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1654. [2024-11-08 18:53:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1602 states have (on average 1.3277153558052435) internal successors, (2127), 1607 states have internal predecessors, (2127), 28 states have call successors, (28), 21 states have call predecessors, (28), 19 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:53:58,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2183 transitions. [2024-11-08 18:53:58,894 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2183 transitions. Word has length 230 [2024-11-08 18:53:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:58,894 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2183 transitions. [2024-11-08 18:53:58,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:53:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2183 transitions. [2024-11-08 18:53:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-08 18:53:58,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:58,897 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:53:58,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 18:53:58,898 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:53:58,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:58,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1821762043, now seen corresponding path program 1 times [2024-11-08 18:53:58,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:58,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228351571] [2024-11-08 18:53:58,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:58,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:59,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:53:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:59,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:53:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:59,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:53:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:59,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:53:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:59,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:53:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:59,384 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:53:59,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:59,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228351571] [2024-11-08 18:53:59,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228351571] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:53:59,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162355900] [2024-11-08 18:53:59,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:59,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:59,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:53:59,387 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:53:59,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-08 18:54:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:00,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 1283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:54:00,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:54:00,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:54:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162355900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:54:01,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:54:01,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 3] total 8 [2024-11-08 18:54:01,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691455603] [2024-11-08 18:54:01,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:54:01,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:54:01,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:01,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:54:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:01,145 INFO L87 Difference]: Start difference. First operand 1654 states and 2183 transitions. Second operand has 9 states, 8 states have (on average 69.375) internal successors, (555), 7 states have internal predecessors, (555), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:54:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:02,182 INFO L93 Difference]: Finished difference Result 3441 states and 4585 transitions. [2024-11-08 18:54:02,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:54:02,183 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 69.375) internal successors, (555), 7 states have internal predecessors, (555), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 231 [2024-11-08 18:54:02,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:02,191 INFO L225 Difference]: With dead ends: 3441 [2024-11-08 18:54:02,192 INFO L226 Difference]: Without dead ends: 3440 [2024-11-08 18:54:02,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:54:02,194 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 2096 mSDsluCounter, 2257 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:02,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 2811 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:54:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3440 states. [2024-11-08 18:54:02,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3440 to 2879. [2024-11-08 18:54:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2827 states have (on average 1.3537318712415989) internal successors, (3827), 2832 states have internal predecessors, (3827), 28 states have call successors, (28), 21 states have call predecessors, (28), 19 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:54:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 3883 transitions. [2024-11-08 18:54:02,387 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 3883 transitions. Word has length 231 [2024-11-08 18:54:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:02,388 INFO L471 AbstractCegarLoop]: Abstraction has 2879 states and 3883 transitions. [2024-11-08 18:54:02,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 69.375) internal successors, (555), 7 states have internal predecessors, (555), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:54:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 3883 transitions. [2024-11-08 18:54:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-08 18:54:02,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:02,392 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:02,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-08 18:54:02,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-08 18:54:02,597 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:02,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:02,598 INFO L85 PathProgramCache]: Analyzing trace with hash 514952850, now seen corresponding path program 1 times [2024-11-08 18:54:02,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:02,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647183376] [2024-11-08 18:54:02,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:02,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-08 18:54:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-11-08 18:54:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:03,814 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-08 18:54:03,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:03,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647183376] [2024-11-08 18:54:03,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647183376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211001749] [2024-11-08 18:54:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:03,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:03,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:03,817 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:03,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-08 18:54:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:04,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 1363 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:54:04,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:04,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:54:05,271 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-08 18:54:05,272 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:05,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211001749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:05,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:05,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-08 18:54:05,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106646779] [2024-11-08 18:54:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:05,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:54:05,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:05,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:54:05,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:54:05,275 INFO L87 Difference]: Start difference. First operand 2879 states and 3883 transitions. Second operand has 5 states, 4 states have (on average 51.75) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:54:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:05,624 INFO L93 Difference]: Finished difference Result 3230 states and 4324 transitions. [2024-11-08 18:54:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:54:05,624 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 51.75) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 254 [2024-11-08 18:54:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:05,633 INFO L225 Difference]: With dead ends: 3230 [2024-11-08 18:54:05,633 INFO L226 Difference]: Without dead ends: 3229 [2024-11-08 18:54:05,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 261 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:54:05,636 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 400 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:05,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2218 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:54:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2024-11-08 18:54:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 2870. [2024-11-08 18:54:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2818 states have (on average 1.3452803406671399) internal successors, (3791), 2822 states have internal predecessors, (3791), 28 states have call successors, (28), 21 states have call predecessors, (28), 19 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:54:05,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 3847 transitions. [2024-11-08 18:54:05,832 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 3847 transitions. Word has length 254 [2024-11-08 18:54:05,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:05,833 INFO L471 AbstractCegarLoop]: Abstraction has 2870 states and 3847 transitions. [2024-11-08 18:54:05,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 51.75) internal successors, (207), 5 states have internal predecessors, (207), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:54:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 3847 transitions. [2024-11-08 18:54:05,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-08 18:54:05,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:05,837 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:05,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:06,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-08 18:54:06,038 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:06,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:06,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1216329266, now seen corresponding path program 1 times [2024-11-08 18:54:06,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:06,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316244535] [2024-11-08 18:54:06,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:06,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-08 18:54:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2024-11-08 18:54:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:07,162 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-08 18:54:07,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:07,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316244535] [2024-11-08 18:54:07,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316244535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:07,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597514191] [2024-11-08 18:54:07,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:07,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:07,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:07,166 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:07,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-08 18:54:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:08,276 INFO L255 TraceCheckSpWp]: Trace formula consists of 1364 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:54:08,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:08,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:54:08,682 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-08 18:54:08,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:08,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597514191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:08,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:08,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 18:54:08,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804352706] [2024-11-08 18:54:08,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:08,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:54:08,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:08,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:54:08,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:54:08,685 INFO L87 Difference]: Start difference. First operand 2870 states and 3847 transitions. Second operand has 6 states, 5 states have (on average 41.6) internal successors, (208), 6 states have internal predecessors, (208), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:54:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:09,004 INFO L93 Difference]: Finished difference Result 2975 states and 3969 transitions. [2024-11-08 18:54:09,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:54:09,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 41.6) internal successors, (208), 6 states have internal predecessors, (208), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 255 [2024-11-08 18:54:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:09,012 INFO L225 Difference]: With dead ends: 2975 [2024-11-08 18:54:09,012 INFO L226 Difference]: Without dead ends: 2974 [2024-11-08 18:54:09,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 260 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:54:09,014 INFO L432 NwaCegarLoop]: 558 mSDtfsCounter, 400 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:09,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 2226 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:54:09,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2024-11-08 18:54:09,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2883. [2024-11-08 18:54:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2830 states have (on average 1.3406360424028267) internal successors, (3794), 2833 states have internal predecessors, (3794), 28 states have call successors, (28), 23 states have call predecessors, (28), 21 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:54:09,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 3850 transitions. [2024-11-08 18:54:09,182 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 3850 transitions. Word has length 255 [2024-11-08 18:54:09,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:09,183 INFO L471 AbstractCegarLoop]: Abstraction has 2883 states and 3850 transitions. [2024-11-08 18:54:09,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 41.6) internal successors, (208), 6 states have internal predecessors, (208), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:54:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 3850 transitions. [2024-11-08 18:54:09,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-08 18:54:09,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:09,185 INFO L215 NwaCegarLoop]: trace histogram [16, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:09,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:09,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-08 18:54:09,386 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:09,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:09,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1179094701, now seen corresponding path program 2 times [2024-11-08 18:54:09,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:09,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945120852] [2024-11-08 18:54:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:09,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-08 18:54:10,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945120852] [2024-11-08 18:54:10,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945120852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:10,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393240414] [2024-11-08 18:54:10,274 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:54:10,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:10,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:10,277 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:10,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-08 18:54:11,424 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:54:11,424 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:54:11,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:54:11,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:11,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 18:54:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:54:12,236 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:54:12,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393240414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:12,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:54:12,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 15 [2024-11-08 18:54:12,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930377705] [2024-11-08 18:54:12,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:12,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:54:12,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:12,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:54:12,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:54:12,238 INFO L87 Difference]: Start difference. First operand 2883 states and 3850 transitions. Second operand has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:54:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:14,027 INFO L93 Difference]: Finished difference Result 5055 states and 6787 transitions. [2024-11-08 18:54:14,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:54:14,028 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 267 [2024-11-08 18:54:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:14,033 INFO L225 Difference]: With dead ends: 5055 [2024-11-08 18:54:14,033 INFO L226 Difference]: Without dead ends: 2999 [2024-11-08 18:54:14,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:54:14,036 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 517 mSDsluCounter, 2241 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 2809 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:14,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 2809 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 18:54:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2024-11-08 18:54:14,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2916. [2024-11-08 18:54:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2916 states, 2863 states have (on average 1.3388054488298986) internal successors, (3833), 2866 states have internal predecessors, (3833), 28 states have call successors, (28), 23 states have call predecessors, (28), 21 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-08 18:54:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2916 states to 2916 states and 3889 transitions. [2024-11-08 18:54:14,242 INFO L78 Accepts]: Start accepts. Automaton has 2916 states and 3889 transitions. Word has length 267 [2024-11-08 18:54:14,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:14,243 INFO L471 AbstractCegarLoop]: Abstraction has 2916 states and 3889 transitions. [2024-11-08 18:54:14,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.9) internal successors, (189), 10 states have internal predecessors, (189), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:54:14,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2916 states and 3889 transitions. [2024-11-08 18:54:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-08 18:54:14,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:14,248 INFO L215 NwaCegarLoop]: trace histogram [16, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:14,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-08 18:54:14,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-08 18:54:14,449 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:14,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:14,450 INFO L85 PathProgramCache]: Analyzing trace with hash -32612779, now seen corresponding path program 1 times [2024-11-08 18:54:14,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:14,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190633065] [2024-11-08 18:54:14,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:14,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:15,373 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2024-11-08 18:54:15,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:15,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190633065] [2024-11-08 18:54:15,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190633065] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:15,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48560846] [2024-11-08 18:54:15,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:15,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:15,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:15,377 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:15,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-08 18:54:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:16,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:54:16,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:17,188 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:54:17,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-08 18:54:17,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48560846] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:54:17,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:54:17,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 6] total 18 [2024-11-08 18:54:17,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748906484] [2024-11-08 18:54:17,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:54:17,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 18:54:17,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:17,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 18:54:17,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:54:17,680 INFO L87 Difference]: Start difference. First operand 2916 states and 3889 transitions. Second operand has 18 states, 18 states have (on average 35.44444444444444) internal successors, (638), 16 states have internal predecessors, (638), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:54:20,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:20,707 INFO L93 Difference]: Finished difference Result 10189 states and 13508 transitions. [2024-11-08 18:54:20,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-08 18:54:20,708 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 35.44444444444444) internal successors, (638), 16 states have internal predecessors, (638), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 268 [2024-11-08 18:54:20,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:20,725 INFO L225 Difference]: With dead ends: 10189 [2024-11-08 18:54:20,725 INFO L226 Difference]: Without dead ends: 8010 [2024-11-08 18:54:20,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=654, Invalid=2208, Unknown=0, NotChecked=0, Total=2862 [2024-11-08 18:54:20,730 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 12318 mSDsluCounter, 5860 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12384 SdHoareTripleChecker+Valid, 6388 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:20,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12384 Valid, 6388 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:54:20,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8010 states. [2024-11-08 18:54:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8010 to 5774. [2024-11-08 18:54:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5774 states, 5718 states have (on average 1.3532703742567331) internal successors, (7738), 5721 states have internal predecessors, (7738), 31 states have call successors, (31), 23 states have call predecessors, (31), 21 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-08 18:54:21,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5774 states to 5774 states and 7800 transitions. [2024-11-08 18:54:21,077 INFO L78 Accepts]: Start accepts. Automaton has 5774 states and 7800 transitions. Word has length 268 [2024-11-08 18:54:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:21,077 INFO L471 AbstractCegarLoop]: Abstraction has 5774 states and 7800 transitions. [2024-11-08 18:54:21,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 35.44444444444444) internal successors, (638), 16 states have internal predecessors, (638), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:54:21,078 INFO L276 IsEmpty]: Start isEmpty. Operand 5774 states and 7800 transitions. [2024-11-08 18:54:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-08 18:54:21,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:21,083 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:21,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:21,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-08 18:54:21,284 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:21,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:21,284 INFO L85 PathProgramCache]: Analyzing trace with hash 562170990, now seen corresponding path program 1 times [2024-11-08 18:54:21,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:21,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164522232] [2024-11-08 18:54:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:21,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2024-11-08 18:54:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2024-11-08 18:54:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2024-11-08 18:54:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2024-11-08 18:54:21,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-11-08 18:54:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-11-08 18:54:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-08 18:54:21,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:21,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164522232] [2024-11-08 18:54:21,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164522232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:21,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:54:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201546492] [2024-11-08 18:54:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:21,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:21,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:21,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:21,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:21,780 INFO L87 Difference]: Start difference. First operand 5774 states and 7800 transitions. Second operand has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 4 states have internal predecessors, (228), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:54:22,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:22,814 INFO L93 Difference]: Finished difference Result 5964 states and 8051 transitions. [2024-11-08 18:54:22,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:54:22,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 4 states have internal predecessors, (228), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 378 [2024-11-08 18:54:22,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:22,825 INFO L225 Difference]: With dead ends: 5964 [2024-11-08 18:54:22,825 INFO L226 Difference]: Without dead ends: 5834 [2024-11-08 18:54:22,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:22,829 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 197 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:22,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 3164 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:54:22,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5834 states. [2024-11-08 18:54:23,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5834 to 5734. [2024-11-08 18:54:23,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5734 states, 5686 states have (on average 1.353148083010904) internal successors, (7694), 5689 states have internal predecessors, (7694), 26 states have call successors, (26), 20 states have call predecessors, (26), 18 states have return successors, (26), 24 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-08 18:54:23,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5734 states to 5734 states and 7746 transitions. [2024-11-08 18:54:23,201 INFO L78 Accepts]: Start accepts. Automaton has 5734 states and 7746 transitions. Word has length 378 [2024-11-08 18:54:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:23,202 INFO L471 AbstractCegarLoop]: Abstraction has 5734 states and 7746 transitions. [2024-11-08 18:54:23,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.57142857142857) internal successors, (228), 4 states have internal predecessors, (228), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 18:54:23,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5734 states and 7746 transitions. [2024-11-08 18:54:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-08 18:54:23,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:23,207 INFO L215 NwaCegarLoop]: trace histogram [16, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:23,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-08 18:54:23,207 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:23,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:23,208 INFO L85 PathProgramCache]: Analyzing trace with hash -183917282, now seen corresponding path program 1 times [2024-11-08 18:54:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:23,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088397499] [2024-11-08 18:54:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:23,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 18:54:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 18:54:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 18:54:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-11-08 18:54:25,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-11-08 18:54:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-11-08 18:54:25,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-11-08 18:54:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 111 proven. 267 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-08 18:54:25,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:25,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088397499] [2024-11-08 18:54:25,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088397499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:25,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049738295] [2024-11-08 18:54:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:25,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:25,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:25,375 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:25,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-08 18:54:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:27,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:54:27,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-08 18:54:27,617 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:28,494 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 412 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-08 18:54:28,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049738295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:54:28,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:54:28,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 14] total 28 [2024-11-08 18:54:28,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304729798] [2024-11-08 18:54:28,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:54:28,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 18:54:28,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:28,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 18:54:28,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=569, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:54:28,498 INFO L87 Difference]: Start difference. First operand 5734 states and 7746 transitions. Second operand has 29 states, 28 states have (on average 26.928571428571427) internal successors, (754), 26 states have internal predecessors, (754), 12 states have call successors, (37), 15 states have call predecessors, (37), 12 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 18:54:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:33,133 INFO L93 Difference]: Finished difference Result 46337 states and 63070 transitions. [2024-11-08 18:54:33,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-08 18:54:33,134 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 26.928571428571427) internal successors, (754), 26 states have internal predecessors, (754), 12 states have call successors, (37), 15 states have call predecessors, (37), 12 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) Word has length 400 [2024-11-08 18:54:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:33,191 INFO L225 Difference]: With dead ends: 46337 [2024-11-08 18:54:33,191 INFO L226 Difference]: Without dead ends: 46336 [2024-11-08 18:54:33,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 815 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1149, Invalid=2391, Unknown=0, NotChecked=0, Total=3540 [2024-11-08 18:54:33,203 INFO L432 NwaCegarLoop]: 544 mSDtfsCounter, 19738 mSDsluCounter, 6791 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1019 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19799 SdHoareTripleChecker+Valid, 7335 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1019 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:33,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19799 Valid, 7335 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1019 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:54:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46336 states. [2024-11-08 18:54:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46336 to 6952. [2024-11-08 18:54:33,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 6868 states have (on average 1.3430401863715784) internal successors, (9224), 6871 states have internal predecessors, (9224), 44 states have call successors, (44), 38 states have call predecessors, (44), 36 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:54:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 9312 transitions. [2024-11-08 18:54:33,809 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 9312 transitions. Word has length 400 [2024-11-08 18:54:33,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:33,810 INFO L471 AbstractCegarLoop]: Abstraction has 6952 states and 9312 transitions. [2024-11-08 18:54:33,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 26.928571428571427) internal successors, (754), 26 states have internal predecessors, (754), 12 states have call successors, (37), 15 states have call predecessors, (37), 12 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 18:54:33,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 9312 transitions. [2024-11-08 18:54:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-08 18:54:33,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:33,819 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:33,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:34,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-08 18:54:34,020 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:34,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:34,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1160965993, now seen corresponding path program 1 times [2024-11-08 18:54:34,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:34,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697203794] [2024-11-08 18:54:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-08 18:54:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-08 18:54:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-08 18:54:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-08 18:54:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-08 18:54:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-11-08 18:54:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:34,861 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-08 18:54:34,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:34,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697203794] [2024-11-08 18:54:34,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697203794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:34,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:34,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:54:34,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785306482] [2024-11-08 18:54:34,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:34,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:54:34,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:54:34,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:54:34,864 INFO L87 Difference]: Start difference. First operand 6952 states and 9312 transitions. Second operand has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 4 states have internal predecessors, (251), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:54:36,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:36,018 INFO L93 Difference]: Finished difference Result 7214 states and 9655 transitions. [2024-11-08 18:54:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:54:36,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 4 states have internal predecessors, (251), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 408 [2024-11-08 18:54:36,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:36,030 INFO L225 Difference]: With dead ends: 7214 [2024-11-08 18:54:36,030 INFO L226 Difference]: Without dead ends: 7084 [2024-11-08 18:54:36,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:54:36,033 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 368 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:36,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 2437 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:54:36,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7084 states. [2024-11-08 18:54:36,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7084 to 6952. [2024-11-08 18:54:36,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6952 states, 6868 states have (on average 1.3428945835760047) internal successors, (9223), 6871 states have internal predecessors, (9223), 44 states have call successors, (44), 38 states have call predecessors, (44), 36 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-08 18:54:36,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6952 states to 6952 states and 9311 transitions. [2024-11-08 18:54:36,396 INFO L78 Accepts]: Start accepts. Automaton has 6952 states and 9311 transitions. Word has length 408 [2024-11-08 18:54:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:36,397 INFO L471 AbstractCegarLoop]: Abstraction has 6952 states and 9311 transitions. [2024-11-08 18:54:36,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 4 states have internal predecessors, (251), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:54:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 6952 states and 9311 transitions. [2024-11-08 18:54:36,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-08 18:54:36,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:36,405 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:36,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-08 18:54:36,405 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:36,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:36,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1514054375, now seen corresponding path program 1 times [2024-11-08 18:54:36,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:36,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529653556] [2024-11-08 18:54:36,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:36,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:37,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2024-11-08 18:54:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2024-11-08 18:54:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-11-08 18:54:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-11-08 18:54:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-11-08 18:54:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-11-08 18:54:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,117 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-08 18:54:37,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:37,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529653556] [2024-11-08 18:54:37,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529653556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:37,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:37,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:54:37,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466980256] [2024-11-08 18:54:37,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:37,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:54:37,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:37,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:54:37,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:54:37,121 INFO L87 Difference]: Start difference. First operand 6952 states and 9311 transitions. Second operand has 8 states, 8 states have (on average 31.5) internal successors, (252), 5 states have internal predecessors, (252), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:54:38,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:38,139 INFO L93 Difference]: Finished difference Result 6956 states and 9314 transitions. [2024-11-08 18:54:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:54:38,140 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 31.5) internal successors, (252), 5 states have internal predecessors, (252), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 408 [2024-11-08 18:54:38,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:38,150 INFO L225 Difference]: With dead ends: 6956 [2024-11-08 18:54:38,150 INFO L226 Difference]: Without dead ends: 6813 [2024-11-08 18:54:38,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:54:38,152 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 253 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:38,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 2711 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:54:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6813 states. [2024-11-08 18:54:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6813 to 4667. [2024-11-08 18:54:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4667 states, 4596 states have (on average 1.3265883376849434) internal successors, (6097), 4598 states have internal predecessors, (6097), 36 states have call successors, (36), 33 states have call predecessors, (36), 32 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:54:38,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4667 states to 4667 states and 6169 transitions. [2024-11-08 18:54:38,414 INFO L78 Accepts]: Start accepts. Automaton has 4667 states and 6169 transitions. Word has length 408 [2024-11-08 18:54:38,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:38,414 INFO L471 AbstractCegarLoop]: Abstraction has 4667 states and 6169 transitions. [2024-11-08 18:54:38,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 31.5) internal successors, (252), 5 states have internal predecessors, (252), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:54:38,415 INFO L276 IsEmpty]: Start isEmpty. Operand 4667 states and 6169 transitions. [2024-11-08 18:54:38,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-08 18:54:38,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:38,421 INFO L215 NwaCegarLoop]: trace histogram [16, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:38,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-08 18:54:38,421 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:38,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:38,422 INFO L85 PathProgramCache]: Analyzing trace with hash -636294417, now seen corresponding path program 1 times [2024-11-08 18:54:38,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:38,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293682304] [2024-11-08 18:54:38,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:38,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:39,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:39,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:39,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:39,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:39,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-08 18:54:39,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:39,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293682304] [2024-11-08 18:54:39,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293682304] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:39,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682143730] [2024-11-08 18:54:39,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:39,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:39,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:39,578 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:39,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-08 18:54:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:41,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-08 18:54:41,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-08 18:54:41,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:42,578 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-11-08 18:54:42,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682143730] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:54:42,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:54:42,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 12] total 26 [2024-11-08 18:54:42,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391847189] [2024-11-08 18:54:42,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:54:42,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 18:54:42,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:42,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 18:54:42,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=398, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:54:42,584 INFO L87 Difference]: Start difference. First operand 4667 states and 6169 transitions. Second operand has 27 states, 26 states have (on average 30.23076923076923) internal successors, (786), 25 states have internal predecessors, (786), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:54:46,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:46,652 INFO L93 Difference]: Finished difference Result 8120 states and 10681 transitions. [2024-11-08 18:54:46,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2024-11-08 18:54:46,652 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 30.23076923076923) internal successors, (786), 25 states have internal predecessors, (786), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 423 [2024-11-08 18:54:46,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:46,671 INFO L225 Difference]: With dead ends: 8120 [2024-11-08 18:54:46,671 INFO L226 Difference]: Without dead ends: 8119 [2024-11-08 18:54:46,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 911 GetRequests, 842 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1147 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1620, Invalid=3350, Unknown=0, NotChecked=0, Total=4970 [2024-11-08 18:54:46,677 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 25347 mSDsluCounter, 6751 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25390 SdHoareTripleChecker+Valid, 7243 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:46,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25390 Valid, 7243 Invalid, 812 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [410 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:54:46,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8119 states. [2024-11-08 18:54:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8119 to 7619. [2024-11-08 18:54:47,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7619 states, 7548 states have (on average 1.3387652358240594) internal successors, (10105), 7550 states have internal predecessors, (10105), 36 states have call successors, (36), 33 states have call predecessors, (36), 32 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:54:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7619 states to 7619 states and 10177 transitions. [2024-11-08 18:54:47,196 INFO L78 Accepts]: Start accepts. Automaton has 7619 states and 10177 transitions. Word has length 423 [2024-11-08 18:54:47,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:47,197 INFO L471 AbstractCegarLoop]: Abstraction has 7619 states and 10177 transitions. [2024-11-08 18:54:47,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 30.23076923076923) internal successors, (786), 25 states have internal predecessors, (786), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:54:47,197 INFO L276 IsEmpty]: Start isEmpty. Operand 7619 states and 10177 transitions. [2024-11-08 18:54:47,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-11-08 18:54:47,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:47,200 INFO L215 NwaCegarLoop]: trace histogram [16, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:47,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-08 18:54:47,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-08 18:54:47,401 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:47,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:47,402 INFO L85 PathProgramCache]: Analyzing trace with hash 135748164, now seen corresponding path program 1 times [2024-11-08 18:54:47,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:47,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944482334] [2024-11-08 18:54:47,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:47,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:49,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 419 [2024-11-08 18:54:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2024-11-08 18:54:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:49,598 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:54:49,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:49,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944482334] [2024-11-08 18:54:49,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944482334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:49,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460688987] [2024-11-08 18:54:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:49,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:49,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:49,601 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:49,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-08 18:54:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:51,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 2192 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:54:51,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 31 proven. 26 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2024-11-08 18:54:51,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:51,572 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2024-11-08 18:54:51,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460688987] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:51,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:54:51,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12, 6] total 18 [2024-11-08 18:54:51,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310710480] [2024-11-08 18:54:51,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:51,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:54:51,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:51,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:54:51,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:54:51,574 INFO L87 Difference]: Start difference. First operand 7619 states and 10177 transitions. Second operand has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:54:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:52,248 INFO L93 Difference]: Finished difference Result 14111 states and 18936 transitions. [2024-11-08 18:54:52,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:54:52,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 443 [2024-11-08 18:54:52,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:52,261 INFO L225 Difference]: With dead ends: 14111 [2024-11-08 18:54:52,261 INFO L226 Difference]: Without dead ends: 8644 [2024-11-08 18:54:52,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 892 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:54:52,268 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 33 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:52,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1354 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:54:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2024-11-08 18:54:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8368. [2024-11-08 18:54:52,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8368 states, 8297 states have (on average 1.3267446064842714) internal successors, (11008), 8299 states have internal predecessors, (11008), 36 states have call successors, (36), 33 states have call predecessors, (36), 32 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 18:54:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8368 states to 8368 states and 11080 transitions. [2024-11-08 18:54:52,724 INFO L78 Accepts]: Start accepts. Automaton has 8368 states and 11080 transitions. Word has length 443 [2024-11-08 18:54:52,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:52,725 INFO L471 AbstractCegarLoop]: Abstraction has 8368 states and 11080 transitions. [2024-11-08 18:54:52,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.0) internal successors, (264), 4 states have internal predecessors, (264), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:54:52,725 INFO L276 IsEmpty]: Start isEmpty. Operand 8368 states and 11080 transitions. [2024-11-08 18:54:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-08 18:54:52,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:52,729 INFO L215 NwaCegarLoop]: trace histogram [16, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:54:52,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-08 18:54:52,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:52,930 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:54:52,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:52,930 INFO L85 PathProgramCache]: Analyzing trace with hash -2030334707, now seen corresponding path program 1 times [2024-11-08 18:54:52,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:52,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210530237] [2024-11-08 18:54:52,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:52,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:54:55,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:54:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:54:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:54:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:54:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2024-11-08 18:54:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 429 [2024-11-08 18:54:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:54:55,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210530237] [2024-11-08 18:54:55,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210530237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:54:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542365940] [2024-11-08 18:54:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:55,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:54:55,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:54:55,217 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:54:55,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-08 18:54:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:57,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:54:57,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:54:57,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:54:57,598 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 36 treesize of output 13 [2024-11-08 18:54:57,803 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 36 treesize of output 13 [2024-11-08 18:54:57,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:54:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:54:57,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:54:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:54:58,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542365940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:54:58,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:54:58,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 8] total 22 [2024-11-08 18:54:58,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499342857] [2024-11-08 18:54:58,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:54:58,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 18:54:58,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 18:54:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:54:58,337 INFO L87 Difference]: Start difference. First operand 8368 states and 11080 transitions. Second operand has 22 states, 22 states have (on average 28.045454545454547) internal successors, (617), 19 states have internal predecessors, (617), 6 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-08 18:54:59,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:59,937 INFO L93 Difference]: Finished difference Result 17334 states and 23029 transitions. [2024-11-08 18:54:59,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 18:54:59,938 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 28.045454545454547) internal successors, (617), 19 states have internal predecessors, (617), 6 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 444 [2024-11-08 18:54:59,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:59,953 INFO L225 Difference]: With dead ends: 17334 [2024-11-08 18:54:59,953 INFO L226 Difference]: Without dead ends: 10995 [2024-11-08 18:54:59,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 885 SyntacticMatches, 7 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=196, Invalid=860, Unknown=0, NotChecked=0, Total=1056 [2024-11-08 18:54:59,961 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 1396 mSDsluCounter, 6290 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 6761 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:59,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1411 Valid, 6761 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:54:59,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2024-11-08 18:55:00,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 10063. [2024-11-08 18:55:00,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10063 states, 9962 states have (on average 1.322826741618149) internal successors, (13178), 9964 states have internal predecessors, (13178), 63 states have call successors, (63), 36 states have call predecessors, (63), 35 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-08 18:55:00,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10063 states to 10063 states and 13304 transitions. [2024-11-08 18:55:00,514 INFO L78 Accepts]: Start accepts. Automaton has 10063 states and 13304 transitions. Word has length 444 [2024-11-08 18:55:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:00,514 INFO L471 AbstractCegarLoop]: Abstraction has 10063 states and 13304 transitions. [2024-11-08 18:55:00,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 28.045454545454547) internal successors, (617), 19 states have internal predecessors, (617), 6 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-08 18:55:00,515 INFO L276 IsEmpty]: Start isEmpty. Operand 10063 states and 13304 transitions. [2024-11-08 18:55:00,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-08 18:55:00,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:00,523 INFO L215 NwaCegarLoop]: trace histogram [16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:00,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:00,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-08 18:55:00,724 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:55:00,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash 642226839, now seen corresponding path program 2 times [2024-11-08 18:55:00,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:00,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084860893] [2024-11-08 18:55:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:00,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:55:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:55:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:55:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:55:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:55:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2024-11-08 18:55:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2024-11-08 18:55:06,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 0 proven. 832 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:55:06,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:06,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084860893] [2024-11-08 18:55:06,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084860893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:06,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883261443] [2024-11-08 18:55:06,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:55:06,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:06,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:06,505 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:06,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-08 18:55:08,455 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:55:08,455 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:55:08,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:55:08,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:08,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2024-11-08 18:55:08,707 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:08,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883261443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:08,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:08,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [21] total 27 [2024-11-08 18:55:08,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251098836] [2024-11-08 18:55:08,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:08,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:55:08,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:08,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:55:08,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:55:08,710 INFO L87 Difference]: Start difference. First operand 10063 states and 13304 transitions. Second operand has 8 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:55:09,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:09,928 INFO L93 Difference]: Finished difference Result 15429 states and 20661 transitions. [2024-11-08 18:55:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:55:09,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 693 [2024-11-08 18:55:09,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:09,945 INFO L225 Difference]: With dead ends: 15429 [2024-11-08 18:55:09,946 INFO L226 Difference]: Without dead ends: 10489 [2024-11-08 18:55:09,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:55:09,953 INFO L432 NwaCegarLoop]: 513 mSDtfsCounter, 27 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:09,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2554 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:55:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10489 states. [2024-11-08 18:55:10,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10489 to 10217. [2024-11-08 18:55:10,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10217 states, 10116 states have (on average 1.3222617635429024) internal successors, (13376), 10118 states have internal predecessors, (13376), 63 states have call successors, (63), 36 states have call predecessors, (63), 35 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-08 18:55:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10217 states to 10217 states and 13502 transitions. [2024-11-08 18:55:10,433 INFO L78 Accepts]: Start accepts. Automaton has 10217 states and 13502 transitions. Word has length 693 [2024-11-08 18:55:10,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:10,433 INFO L471 AbstractCegarLoop]: Abstraction has 10217 states and 13502 transitions. [2024-11-08 18:55:10,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.25) internal successors, (314), 8 states have internal predecessors, (314), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:55:10,434 INFO L276 IsEmpty]: Start isEmpty. Operand 10217 states and 13502 transitions. [2024-11-08 18:55:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-08 18:55:10,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:10,442 INFO L215 NwaCegarLoop]: trace histogram [16, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:10,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:10,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-08 18:55:10,643 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:55:10,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash -188483155, now seen corresponding path program 1 times [2024-11-08 18:55:10,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:10,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081821036] [2024-11-08 18:55:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:10,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:55:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:55:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:55:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:55:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:55:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 670 [2024-11-08 18:55:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 679 [2024-11-08 18:55:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:16,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 0 proven. 832 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:55:16,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:16,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081821036] [2024-11-08 18:55:16,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081821036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:16,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382212189] [2024-11-08 18:55:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:16,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:16,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:16,412 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:16,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-08 18:55:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:18,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 18:55:18,757 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:18,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 18:55:19,254 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 36 treesize of output 13 [2024-11-08 18:55:19,431 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 36 treesize of output 13 [2024-11-08 18:55:19,577 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 36 treesize of output 13 [2024-11-08 18:55:19,735 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 36 treesize of output 13 [2024-11-08 18:55:19,896 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 36 treesize of output 13 [2024-11-08 18:55:19,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 18:55:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 0 proven. 832 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:55:19,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:55:20,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1091 backedges. 0 proven. 832 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-08 18:55:20,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382212189] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:55:20,848 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:55:20,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 14] total 37 [2024-11-08 18:55:20,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858608544] [2024-11-08 18:55:20,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:55:20,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-08 18:55:20,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:20,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-08 18:55:20,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1037, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 18:55:20,851 INFO L87 Difference]: Start difference. First operand 10217 states and 13502 transitions. Second operand has 37 states, 37 states have (on average 28.45945945945946) internal successors, (1053), 34 states have internal predecessors, (1053), 6 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-08 18:55:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:23,130 INFO L93 Difference]: Finished difference Result 24704 states and 32787 transitions. [2024-11-08 18:55:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-08 18:55:23,131 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 28.45945945945946) internal successors, (1053), 34 states have internal predecessors, (1053), 6 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 694 [2024-11-08 18:55:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:23,154 INFO L225 Difference]: With dead ends: 24704 [2024-11-08 18:55:23,154 INFO L226 Difference]: Without dead ends: 18211 [2024-11-08 18:55:23,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1439 GetRequests, 1379 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1089 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=494, Invalid=2158, Unknown=0, NotChecked=0, Total=2652 [2024-11-08 18:55:23,164 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 2775 mSDsluCounter, 6446 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2805 SdHoareTripleChecker+Valid, 6917 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:23,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2805 Valid, 6917 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:55:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18211 states. [2024-11-08 18:55:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18211 to 16602. [2024-11-08 18:55:23,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16602 states, 16397 states have (on average 1.317558089894493) internal successors, (21604), 16400 states have internal predecessors, (21604), 167 states have call successors, (167), 36 states have call predecessors, (167), 35 states have return successors, (167), 165 states have call predecessors, (167), 167 states have call successors, (167) [2024-11-08 18:55:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16602 states to 16602 states and 21938 transitions. [2024-11-08 18:55:23,966 INFO L78 Accepts]: Start accepts. Automaton has 16602 states and 21938 transitions. Word has length 694 [2024-11-08 18:55:23,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:23,967 INFO L471 AbstractCegarLoop]: Abstraction has 16602 states and 21938 transitions. [2024-11-08 18:55:23,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 28.45945945945946) internal successors, (1053), 34 states have internal predecessors, (1053), 6 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-08 18:55:23,968 INFO L276 IsEmpty]: Start isEmpty. Operand 16602 states and 21938 transitions. [2024-11-08 18:55:23,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2024-11-08 18:55:23,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:23,986 INFO L215 NwaCegarLoop]: trace histogram [16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:24,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:24,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:24,187 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:55:24,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:24,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1037334263, now seen corresponding path program 2 times [2024-11-08 18:55:24,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:24,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902323038] [2024-11-08 18:55:24,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:24,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:55:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:55:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:55:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:55:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:55:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1085 [2024-11-08 18:55:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1094 [2024-11-08 18:55:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3996 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 3910 trivial. 0 not checked. [2024-11-08 18:55:27,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:27,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902323038] [2024-11-08 18:55:27,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902323038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:27,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:27,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:55:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615734784] [2024-11-08 18:55:27,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:27,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:55:27,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:55:27,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:55:27,291 INFO L87 Difference]: Start difference. First operand 16602 states and 21938 transitions. Second operand has 8 states, 7 states have (on average 45.57142857142857) internal successors, (319), 5 states have internal predecessors, (319), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:55:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:28,619 INFO L93 Difference]: Finished difference Result 16602 states and 21938 transitions. [2024-11-08 18:55:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:55:28,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 45.57142857142857) internal successors, (319), 5 states have internal predecessors, (319), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 1109 [2024-11-08 18:55:28,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:28,652 INFO L225 Difference]: With dead ends: 16602 [2024-11-08 18:55:28,652 INFO L226 Difference]: Without dead ends: 16577 [2024-11-08 18:55:28,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:55:28,659 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 429 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:28,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 1986 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:55:28,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16577 states. [2024-11-08 18:55:29,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16577 to 15538. [2024-11-08 18:55:29,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15538 states, 15338 states have (on average 1.3201199634893728) internal successors, (20248), 15340 states have internal predecessors, (20248), 165 states have call successors, (165), 34 states have call predecessors, (165), 33 states have return successors, (165), 163 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-08 18:55:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15538 states to 15538 states and 20578 transitions. [2024-11-08 18:55:29,365 INFO L78 Accepts]: Start accepts. Automaton has 15538 states and 20578 transitions. Word has length 1109 [2024-11-08 18:55:29,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:29,366 INFO L471 AbstractCegarLoop]: Abstraction has 15538 states and 20578 transitions. [2024-11-08 18:55:29,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 45.57142857142857) internal successors, (319), 5 states have internal predecessors, (319), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-08 18:55:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 15538 states and 20578 transitions. [2024-11-08 18:55:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1145 [2024-11-08 18:55:29,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:29,393 INFO L215 NwaCegarLoop]: trace histogram [16, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:29,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-08 18:55:29,394 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:55:29,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash 714794296, now seen corresponding path program 2 times [2024-11-08 18:55:29,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:29,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325446746] [2024-11-08 18:55:29,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:29,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:55:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:55:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:55:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:55:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:55:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 18:55:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 18:55:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 18:55:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-11-08 18:55:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2024-11-08 18:55:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-11-08 18:55:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2024-11-08 18:55:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2024-11-08 18:55:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 412 [2024-11-08 18:55:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2024-11-08 18:55:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 520 [2024-11-08 18:55:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 536 [2024-11-08 18:55:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 634 [2024-11-08 18:55:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 644 [2024-11-08 18:55:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 660 [2024-11-08 18:55:38,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2024-11-08 18:55:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 768 [2024-11-08 18:55:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2024-11-08 18:55:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 882 [2024-11-08 18:55:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 892 [2024-11-08 18:55:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 908 [2024-11-08 18:55:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2024-11-08 18:55:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1016 [2024-11-08 18:55:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2024-11-08 18:55:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1130 [2024-11-08 18:55:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:38,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4698 backedges. 213 proven. 3522 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2024-11-08 18:55:38,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:38,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325446746] [2024-11-08 18:55:38,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325446746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:38,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118182361] [2024-11-08 18:55:38,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:55:38,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:38,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:38,965 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:38,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-08 18:55:42,021 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:55:42,022 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:55:42,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 18:55:42,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4698 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 4056 trivial. 0 not checked. [2024-11-08 18:55:42,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:42,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118182361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:42,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:42,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [19] total 26 [2024-11-08 18:55:42,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465038080] [2024-11-08 18:55:42,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:42,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:55:42,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:42,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:55:42,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:55:42,247 INFO L87 Difference]: Start difference. First operand 15538 states and 20578 transitions. Second operand has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:55:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:43,310 INFO L93 Difference]: Finished difference Result 30966 states and 41112 transitions. [2024-11-08 18:55:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:55:43,310 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 1144 [2024-11-08 18:55:43,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:43,332 INFO L225 Difference]: With dead ends: 30966 [2024-11-08 18:55:43,333 INFO L226 Difference]: Without dead ends: 15856 [2024-11-08 18:55:43,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1225 GetRequests, 1201 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:55:43,343 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 23 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:43,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1901 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:55:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15856 states. [2024-11-08 18:55:43,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15856 to 15697. [2024-11-08 18:55:43,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15697 states, 15497 states have (on average 1.3202555333290313) internal successors, (20460), 15499 states have internal predecessors, (20460), 165 states have call successors, (165), 34 states have call predecessors, (165), 33 states have return successors, (165), 163 states have call predecessors, (165), 165 states have call successors, (165) [2024-11-08 18:55:43,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15697 states to 15697 states and 20790 transitions. [2024-11-08 18:55:43,996 INFO L78 Accepts]: Start accepts. Automaton has 15697 states and 20790 transitions. Word has length 1144 [2024-11-08 18:55:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:43,996 INFO L471 AbstractCegarLoop]: Abstraction has 15697 states and 20790 transitions. [2024-11-08 18:55:43,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.75) internal successors, (214), 8 states have internal predecessors, (214), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-08 18:55:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 15697 states and 20790 transitions. [2024-11-08 18:55:44,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1153 [2024-11-08 18:55:44,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:44,016 INFO L215 NwaCegarLoop]: trace histogram [16, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:44,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:44,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-08 18:55:44,217 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:55:44,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:44,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2040683584, now seen corresponding path program 1 times [2024-11-08 18:55:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:44,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069916971] [2024-11-08 18:55:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:44,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:55:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:55:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:55:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:55:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:55:53,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 18:55:53,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 18:55:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-08 18:55:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2024-11-08 18:55:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2024-11-08 18:55:53,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2024-11-08 18:55:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2024-11-08 18:55:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 398 [2024-11-08 18:55:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2024-11-08 18:55:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2024-11-08 18:55:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 523 [2024-11-08 18:55:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2024-11-08 18:55:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2024-11-08 18:55:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 648 [2024-11-08 18:55:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2024-11-08 18:55:53,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 763 [2024-11-08 18:55:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 773 [2024-11-08 18:55:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 789 [2024-11-08 18:55:53,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 888 [2024-11-08 18:55:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:53,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 898 [2024-11-08 18:55:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:54,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2024-11-08 18:55:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:54,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1013 [2024-11-08 18:55:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:54,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1023 [2024-11-08 18:55:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:54,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1039 [2024-11-08 18:55:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:54,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1138 [2024-11-08 18:55:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4710 backedges. 213 proven. 3534 refuted. 0 times theorem prover too weak. 963 trivial. 0 not checked. [2024-11-08 18:55:54,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:54,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069916971] [2024-11-08 18:55:54,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069916971] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:54,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489580817] [2024-11-08 18:55:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:54,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:54,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:54,075 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:54,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-08 18:55:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:57,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 6708 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 18:55:57,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4710 backedges. 0 proven. 4115 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2024-11-08 18:55:59,248 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4710 backedges. 0 proven. 4048 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2024-11-08 18:56:02,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489580817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:56:02,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:56:02,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 32] total 52 [2024-11-08 18:56:02,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705088379] [2024-11-08 18:56:02,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:56:02,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-08 18:56:02,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:56:02,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-08 18:56:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=843, Invalid=1913, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 18:56:02,475 INFO L87 Difference]: Start difference. First operand 15697 states and 20790 transitions. Second operand has 53 states, 52 states have (on average 39.96153846153846) internal successors, (2078), 50 states have internal predecessors, (2078), 24 states have call successors, (91), 27 states have call predecessors, (91), 24 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) [2024-11-08 18:56:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:16,772 INFO L93 Difference]: Finished difference Result 126795 states and 170541 transitions. [2024-11-08 18:56:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2024-11-08 18:56:16,773 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 39.96153846153846) internal successors, (2078), 50 states have internal predecessors, (2078), 24 states have call successors, (91), 27 states have call predecessors, (91), 24 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) Word has length 1152 [2024-11-08 18:56:16,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:17,144 INFO L225 Difference]: With dead ends: 126795 [2024-11-08 18:56:17,144 INFO L226 Difference]: Without dead ends: 126794 [2024-11-08 18:56:17,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2474 GetRequests, 2355 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3632 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4638, Invalid=9642, Unknown=0, NotChecked=0, Total=14280 [2024-11-08 18:56:17,165 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 38623 mSDsluCounter, 15442 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38628 SdHoareTripleChecker+Valid, 15921 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:17,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38628 Valid, 15921 Invalid, 1216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [532 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:56:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126794 states. [2024-11-08 18:56:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126794 to 18214. [2024-11-08 18:56:18,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18214 states, 17941 states have (on average 1.3168162309793212) internal successors, (23625), 17942 states have internal predecessors, (23625), 202 states have call successors, (202), 70 states have call predecessors, (202), 69 states have return successors, (202), 201 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-08 18:56:18,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18214 states to 18214 states and 24029 transitions. [2024-11-08 18:56:18,632 INFO L78 Accepts]: Start accepts. Automaton has 18214 states and 24029 transitions. Word has length 1152 [2024-11-08 18:56:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:18,632 INFO L471 AbstractCegarLoop]: Abstraction has 18214 states and 24029 transitions. [2024-11-08 18:56:18,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 39.96153846153846) internal successors, (2078), 50 states have internal predecessors, (2078), 24 states have call successors, (91), 27 states have call predecessors, (91), 24 states have return successors, (80), 24 states have call predecessors, (80), 24 states have call successors, (80) [2024-11-08 18:56:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 18214 states and 24029 transitions. [2024-11-08 18:56:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2024-11-08 18:56:18,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:18,657 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:18,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:18,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:18,857 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:56:18,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:18,858 INFO L85 PathProgramCache]: Analyzing trace with hash 856580152, now seen corresponding path program 1 times [2024-11-08 18:56:18,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:56:18,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972119350] [2024-11-08 18:56:18,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:18,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:56:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:56:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:56:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:56:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:56:24,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:56:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6825 backedges. 0 proven. 2904 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:56:24,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:56:24,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972119350] [2024-11-08 18:56:24,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972119350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:24,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755615990] [2024-11-08 18:56:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:24,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:24,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:24,490 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:24,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-08 18:56:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:28,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 6031 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-08 18:56:28,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:30,176 INFO L134 CoverageAnalysis]: Checked inductivity of 6825 backedges. 0 proven. 2904 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:56:30,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:56:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 6825 backedges. 0 proven. 2904 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:56:33,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755615990] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:56:33,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:56:33,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 24] total 50 [2024-11-08 18:56:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872179258] [2024-11-08 18:56:33,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:56:33,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-08 18:56:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:56:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-08 18:56:33,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=1370, Unknown=0, NotChecked=0, Total=2550 [2024-11-08 18:56:33,159 INFO L87 Difference]: Start difference. First operand 18214 states and 24029 transitions. Second operand has 51 states, 50 states have (on average 21.84) internal successors, (1092), 49 states have internal predecessors, (1092), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:56:41,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:41,199 INFO L93 Difference]: Finished difference Result 23927 states and 31757 transitions. [2024-11-08 18:56:41,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-08 18:56:41,199 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 21.84) internal successors, (1092), 49 states have internal predecessors, (1092), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 1241 [2024-11-08 18:56:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:41,233 INFO L225 Difference]: With dead ends: 23927 [2024-11-08 18:56:41,233 INFO L226 Difference]: Without dead ends: 23926 [2024-11-08 18:56:41,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2518 GetRequests, 2466 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1333, Invalid=1529, Unknown=0, NotChecked=0, Total=2862 [2024-11-08 18:56:41,238 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 37528 mSDsluCounter, 12967 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37531 SdHoareTripleChecker+Valid, 13451 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:41,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37531 Valid, 13451 Invalid, 269 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:56:41,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23926 states. [2024-11-08 18:56:42,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23926 to 23926. [2024-11-08 18:56:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23926 states, 23653 states have (on average 1.32452543017799) internal successors, (31329), 23654 states have internal predecessors, (31329), 202 states have call successors, (202), 70 states have call predecessors, (202), 69 states have return successors, (202), 201 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-08 18:56:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23926 states to 23926 states and 31733 transitions. [2024-11-08 18:56:43,038 INFO L78 Accepts]: Start accepts. Automaton has 23926 states and 31733 transitions. Word has length 1241 [2024-11-08 18:56:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:43,039 INFO L471 AbstractCegarLoop]: Abstraction has 23926 states and 31733 transitions. [2024-11-08 18:56:43,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 21.84) internal successors, (1092), 49 states have internal predecessors, (1092), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:56:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 23926 states and 31733 transitions. [2024-11-08 18:56:43,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2024-11-08 18:56:43,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:43,088 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:43,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-08 18:56:43,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:43,289 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:56:43,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:43,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1784788616, now seen corresponding path program 2 times [2024-11-08 18:56:43,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:56:43,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708927640] [2024-11-08 18:56:43,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:43,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:56:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:54,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:56:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:54,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:56:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:54,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:56:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:54,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:56:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:54,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:56:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:54,554 INFO L134 CoverageAnalysis]: Checked inductivity of 16617 backedges. 0 proven. 12696 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:56:54,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:56:54,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708927640] [2024-11-08 18:56:54,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708927640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:56:54,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241094559] [2024-11-08 18:56:54,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:56:54,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:54,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:54,557 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:54,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-08 18:56:57,658 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:56:57,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:56:57,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 18:56:57,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 16617 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16617 trivial. 0 not checked. [2024-11-08 18:56:57,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:57,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241094559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:57,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:56:57,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [50] total 55 [2024-11-08 18:56:57,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023601150] [2024-11-08 18:56:57,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:57,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:56:57,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:56:57,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:56:57,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1189, Invalid=1781, Unknown=0, NotChecked=0, Total=2970 [2024-11-08 18:56:57,947 INFO L87 Difference]: Start difference. First operand 23926 states and 31733 transitions. Second operand has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:56:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:59,685 INFO L93 Difference]: Finished difference Result 35314 states and 47152 transitions. [2024-11-08 18:56:59,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:56:59,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 1529 [2024-11-08 18:56:59,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:59,719 INFO L225 Difference]: With dead ends: 35314 [2024-11-08 18:56:59,719 INFO L226 Difference]: Without dead ends: 24302 [2024-11-08 18:56:59,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1585 GetRequests, 1532 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1189, Invalid=1781, Unknown=0, NotChecked=0, Total=2970 [2024-11-08 18:56:59,732 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 12 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:59,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2008 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:56:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24302 states. [2024-11-08 18:57:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24302 to 24161. [2024-11-08 18:57:01,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24161 states, 23888 states have (on average 1.3252679169457469) internal successors, (31658), 23889 states have internal predecessors, (31658), 202 states have call successors, (202), 70 states have call predecessors, (202), 69 states have return successors, (202), 201 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-08 18:57:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24161 states to 24161 states and 32062 transitions. [2024-11-08 18:57:01,147 INFO L78 Accepts]: Start accepts. Automaton has 24161 states and 32062 transitions. Word has length 1529 [2024-11-08 18:57:01,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:01,148 INFO L471 AbstractCegarLoop]: Abstraction has 24161 states and 32062 transitions. [2024-11-08 18:57:01,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.333333333333336) internal successors, (200), 6 states have internal predecessors, (200), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:57:01,148 INFO L276 IsEmpty]: Start isEmpty. Operand 24161 states and 32062 transitions. [2024-11-08 18:57:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1531 [2024-11-08 18:57:01,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:01,196 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 46, 46, 16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:01,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-08 18:57:01,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:01,397 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:57:01,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:01,397 INFO L85 PathProgramCache]: Analyzing trace with hash -920763210, now seen corresponding path program 1 times [2024-11-08 18:57:01,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:01,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073647209] [2024-11-08 18:57:01,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:01,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:12,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:57:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:12,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:57:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:57:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:57:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:57:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:12,401 INFO L134 CoverageAnalysis]: Checked inductivity of 16617 backedges. 0 proven. 12696 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:57:12,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:57:12,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073647209] [2024-11-08 18:57:12,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073647209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:57:12,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203629966] [2024-11-08 18:57:12,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:12,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:12,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:12,403 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:12,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-08 18:57:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:16,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 7352 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-08 18:57:16,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 16617 backedges. 0 proven. 12696 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:57:19,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:57:24,567 INFO L134 CoverageAnalysis]: Checked inductivity of 16617 backedges. 0 proven. 12696 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:57:24,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203629966] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:57:24,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:57:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 47, 48] total 98 [2024-11-08 18:57:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024510337] [2024-11-08 18:57:24,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:57:24,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2024-11-08 18:57:24,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:57:24,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2024-11-08 18:57:24,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4660, Invalid=5042, Unknown=0, NotChecked=0, Total=9702 [2024-11-08 18:57:24,580 INFO L87 Difference]: Start difference. First operand 24161 states and 32062 transitions. Second operand has 99 states, 98 states have (on average 17.051020408163264) internal successors, (1671), 97 states have internal predecessors, (1671), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:58:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:42,034 INFO L93 Difference]: Finished difference Result 35826 states and 47854 transitions. [2024-11-08 18:58:42,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2024-11-08 18:58:42,035 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 98 states have (on average 17.051020408163264) internal successors, (1671), 97 states have internal predecessors, (1671), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 1530 [2024-11-08 18:58:42,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:42,075 INFO L225 Difference]: With dead ends: 35826 [2024-11-08 18:58:42,076 INFO L226 Difference]: Without dead ends: 35825 [2024-11-08 18:58:42,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3120 GetRequests, 3020 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=4957, Invalid=5345, Unknown=0, NotChecked=0, Total=10302 [2024-11-08 18:58:42,082 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 88759 mSDsluCounter, 25854 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88762 SdHoareTripleChecker+Valid, 26338 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:42,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88762 Valid, 26338 Invalid, 360 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [34 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:58:42,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35825 states. [2024-11-08 18:58:44,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35825 to 35825. [2024-11-08 18:58:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35825 states, 35552 states have (on average 1.3333145814581457) internal successors, (47402), 35553 states have internal predecessors, (47402), 202 states have call successors, (202), 70 states have call predecessors, (202), 69 states have return successors, (202), 201 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-08 18:58:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35825 states to 35825 states and 47806 transitions. [2024-11-08 18:58:44,430 INFO L78 Accepts]: Start accepts. Automaton has 35825 states and 47806 transitions. Word has length 1530 [2024-11-08 18:58:44,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:44,431 INFO L471 AbstractCegarLoop]: Abstraction has 35825 states and 47806 transitions. [2024-11-08 18:58:44,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 98 states have (on average 17.051020408163264) internal successors, (1671), 97 states have internal predecessors, (1671), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-08 18:58:44,431 INFO L276 IsEmpty]: Start isEmpty. Operand 35825 states and 47806 transitions. [2024-11-08 18:58:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2107 [2024-11-08 18:58:44,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:44,486 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 94, 94, 94, 94, 94, 16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:44,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-08 18:58:44,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:44,687 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:58:44,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:44,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1822861110, now seen corresponding path program 2 times [2024-11-08 18:58:44,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:44,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377477259] [2024-11-08 18:58:44,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:44,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:16,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:59:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:16,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:59:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:16,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:59:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:16,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:59:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:16,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:59:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 56937 backedges. 0 proven. 53016 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:59:16,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:59:16,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377477259] [2024-11-08 18:59:16,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377477259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:59:16,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30812148] [2024-11-08 18:59:16,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:59:16,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:16,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:59:16,326 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:59:16,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-08 18:59:20,779 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 18:59:20,779 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:59:20,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:59:20,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:59:21,341 INFO L134 CoverageAnalysis]: Checked inductivity of 56937 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56937 trivial. 0 not checked. [2024-11-08 18:59:21,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:59:21,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30812148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:59:21,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:59:21,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [98] total 104 [2024-11-08 18:59:21,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55535434] [2024-11-08 18:59:21,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:59:21,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:59:21,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:59:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:59:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4670, Invalid=6042, Unknown=0, NotChecked=0, Total=10712 [2024-11-08 18:59:21,346 INFO L87 Difference]: Start difference. First operand 35825 states and 47806 transitions. Second operand has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:59:24,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:59:24,072 INFO L93 Difference]: Finished difference Result 59771 states and 80334 transitions. [2024-11-08 18:59:24,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:59:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 2106 [2024-11-08 18:59:24,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:59:24,124 INFO L225 Difference]: With dead ends: 59771 [2024-11-08 18:59:24,124 INFO L226 Difference]: Without dead ends: 36870 [2024-11-08 18:59:24,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2210 GetRequests, 2108 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=4670, Invalid=6042, Unknown=0, NotChecked=0, Total=10712 [2024-11-08 18:59:24,147 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 14 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2330 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:59:24,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2330 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:59:24,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36870 states. [2024-11-08 18:59:26,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36870 to 36209. [2024-11-08 18:59:26,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36209 states, 35936 states have (on average 1.3350678984861977) internal successors, (47977), 35937 states have internal predecessors, (47977), 202 states have call successors, (202), 70 states have call predecessors, (202), 69 states have return successors, (202), 201 states have call predecessors, (202), 202 states have call successors, (202) [2024-11-08 18:59:26,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36209 states to 36209 states and 48381 transitions. [2024-11-08 18:59:26,773 INFO L78 Accepts]: Start accepts. Automaton has 36209 states and 48381 transitions. Word has length 2106 [2024-11-08 18:59:26,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:59:26,774 INFO L471 AbstractCegarLoop]: Abstraction has 36209 states and 48381 transitions. [2024-11-08 18:59:26,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 28.714285714285715) internal successors, (201), 7 states have internal predecessors, (201), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-08 18:59:26,774 INFO L276 IsEmpty]: Start isEmpty. Operand 36209 states and 48381 transitions. [2024-11-08 18:59:26,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2107 [2024-11-08 18:59:26,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:59:26,820 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 94, 94, 94, 94, 94, 94, 94, 16, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:59:26,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-08 18:59:27,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:27,024 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-08 18:59:27,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:59:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1727774162, now seen corresponding path program 1 times [2024-11-08 18:59:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:59:27,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253867868] [2024-11-08 18:59:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:59:27,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:59:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:56,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 18:59:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:56,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:59:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:56,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 18:59:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:56,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 18:59:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:56,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 18:59:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 56937 backedges. 0 proven. 53016 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 18:59:56,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:59:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253867868] [2024-11-08 18:59:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253867868] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:59:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075813398] [2024-11-08 18:59:56,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:59:56,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:56,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:59:56,374 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:59:56,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fc69521-0a9a-4e9d-9927-b1ee9ab9c5d4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-08 19:00:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:00:02,331 INFO L255 TraceCheckSpWp]: Trace formula consists of 9989 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-08 19:00:02,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:00:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 56937 backedges. 0 proven. 53016 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 19:00:05,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:00:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 56937 backedges. 0 proven. 53016 refuted. 0 times theorem prover too weak. 3921 trivial. 0 not checked. [2024-11-08 19:00:19,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075813398] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:00:19,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:00:19,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 95, 96] total 194 [2024-11-08 19:00:19,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208695558] [2024-11-08 19:00:20,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:00:20,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 195 states [2024-11-08 19:00:20,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:00:20,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 195 interpolants. [2024-11-08 19:00:20,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18532, Invalid=19298, Unknown=0, NotChecked=0, Total=37830 [2024-11-08 19:00:20,010 INFO L87 Difference]: Start difference. First operand 36209 states and 48381 transitions. Second operand has 195 states, 194 states have (on average 14.551546391752577) internal successors, (2823), 193 states have internal predecessors, (2823), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)