./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:04:43,327 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:04:43,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:04:43,416 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:04:43,417 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:04:43,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:04:43,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:04:43,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:04:43,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:04:43,449 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:04:43,449 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:04:43,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:04:43,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:04:43,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:04:43,451 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:04:43,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:04:43,452 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:04:43,452 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:04:43,452 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:04:43,453 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:04:43,453 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:04:43,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:04:43,457 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:04:43,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:04:43,458 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:04:43,458 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:04:43,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:04:43,459 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:04:43,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:04:43,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:04:43,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:04:43,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:04:43,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:04:43,464 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:04:43,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:43,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:04:43,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:04:43,465 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:04:43,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:04:43,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:04:43,466 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:04:43,468 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:04:43,468 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:04:43,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:04:43,468 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_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2024-10-31 22:04:43,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:04:43,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:04:43,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:04:43,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:04:43,773 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:04:43,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i Unable to find full path for "g++" [2024-10-31 22:04:45,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:04:46,203 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:04:46,204 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2024-10-31 22:04:46,221 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/data/202e941fb/8d2c5842b3924fab9eec50020ed84c12/FLAGadd5f7566 [2024-10-31 22:04:46,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/data/202e941fb/8d2c5842b3924fab9eec50020ed84c12 [2024-10-31 22:04:46,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:04:46,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:04:46,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:46,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:04:46,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:04:46,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:46" (1/1) ... [2024-10-31 22:04:46,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f73be64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:46, skipping insertion in model container [2024-10-31 22:04:46,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:04:46" (1/1) ... [2024-10-31 22:04:46,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:04:47,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:47,073 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:04:47,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:04:47,380 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:04:47,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47 WrapperNode [2024-10-31 22:04:47,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:04:47,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:47,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:04:47,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:04:47,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,514 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1487 [2024-10-31 22:04:47,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:04:47,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:04:47,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:04:47,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:04:47,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,663 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 34, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 54 writes are split as follows [0, 1, 4, 49]. [2024-10-31 22:04:47,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,729 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:04:47,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:04:47,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:04:47,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:04:47,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (1/1) ... [2024-10-31 22:04:47,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:04:47,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:47,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:04:47,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:04:47,832 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-10-31 22:04:47,832 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-10-31 22:04:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:04:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:04:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:04:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:04:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:04:47,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:04:47,835 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-10-31 22:04:47,836 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-10-31 22:04:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:04:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:04:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:04:47,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:04:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:04:47,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:04:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:04:47,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:04:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:04:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:04:47,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:04:47,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:04:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-10-31 22:04:47,840 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-10-31 22:04:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:04:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:04:47,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:04:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:04:47,841 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-10-31 22:04:47,842 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-10-31 22:04:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:04:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:04:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:04:47,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:04:47,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:04:47,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:04:48,136 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:04:48,139 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:04:49,942 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2024-10-31 22:04:49,942 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:04:49,967 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:04:49,967 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-10-31 22:04:49,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:49 BoogieIcfgContainer [2024-10-31 22:04:49,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:04:49,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:04:49,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:04:49,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:04:49,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:04:46" (1/3) ... [2024-10-31 22:04:49,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbfaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:49, skipping insertion in model container [2024-10-31 22:04:49,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:04:47" (2/3) ... [2024-10-31 22:04:49,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cbfaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:04:49, skipping insertion in model container [2024-10-31 22:04:49,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:04:49" (3/3) ... [2024-10-31 22:04:49,982 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2024-10-31 22:04:50,001 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:04:50,002 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-31 22:04:50,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:04:50,110 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;@3d458777, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:04:50,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-31 22:04:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 462 states, 425 states have (on average 1.6070588235294119) internal successors, (683), 442 states have internal predecessors, (683), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 22:04:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:04:50,124 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:50,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:50,125 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)] === [2024-10-31 22:04:50,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-10-31 22:04:50,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861394056] [2024-10-31 22:04:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:50,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:50,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:50,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:50,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861394056] [2024-10-31 22:04:50,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861394056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:50,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:50,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25113903] [2024-10-31 22:04:50,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:50,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:04:50,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:04:50,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:04:50,376 INFO L87 Difference]: Start difference. First operand has 462 states, 425 states have (on average 1.6070588235294119) internal successors, (683), 442 states have internal predecessors, (683), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:50,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:50,473 INFO L93 Difference]: Finished difference Result 917 states and 1441 transitions. [2024-10-31 22:04:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:04:50,476 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:04:50,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:50,510 INFO L225 Difference]: With dead ends: 917 [2024-10-31 22:04:50,513 INFO L226 Difference]: Without dead ends: 443 [2024-10-31 22:04:50,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:04:50,522 INFO L432 NwaCegarLoop]: 641 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, 641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:50,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-31 22:04:50,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-10-31 22:04:50,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 415 states have (on average 1.4481927710843374) internal successors, (601), 429 states have internal predecessors, (601), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:04:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 621 transitions. [2024-10-31 22:04:50,623 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 621 transitions. Word has length 8 [2024-10-31 22:04:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:50,625 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 621 transitions. [2024-10-31 22:04:50,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:50,625 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 621 transitions. [2024-10-31 22:04:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-31 22:04:50,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:50,626 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:50,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:04:50,627 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)] === [2024-10-31 22:04:50,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:50,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-10-31 22:04:50,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263102654] [2024-10-31 22:04:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:50,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:04:50,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422776138] [2024-10-31 22:04:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:50,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:50,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:50,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:50,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:04:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:50,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:04:50,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:51,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:04:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:51,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:51,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:51,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263102654] [2024-10-31 22:04:51,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:04:51,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422776138] [2024-10-31 22:04:51,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422776138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:51,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:51,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:51,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714625550] [2024-10-31 22:04:51,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:51,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:51,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:51,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:51,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:51,083 INFO L87 Difference]: Start difference. First operand 443 states and 621 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:51,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:51,316 INFO L93 Difference]: Finished difference Result 852 states and 1209 transitions. [2024-10-31 22:04:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:51,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-31 22:04:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:51,323 INFO L225 Difference]: With dead ends: 852 [2024-10-31 22:04:51,323 INFO L226 Difference]: Without dead ends: 850 [2024-10-31 22:04:51,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:51,325 INFO L432 NwaCegarLoop]: 597 mSDtfsCounter, 562 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:51,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1780 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:04:51,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-10-31 22:04:51,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 450. [2024-10-31 22:04:51,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 422 states have (on average 1.4431279620853081) internal successors, (609), 436 states have internal predecessors, (609), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:04:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 629 transitions. [2024-10-31 22:04:51,375 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 629 transitions. Word has length 8 [2024-10-31 22:04:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:51,376 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 629 transitions. [2024-10-31 22:04:51,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 629 transitions. [2024-10-31 22:04:51,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:04:51,381 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:51,382 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] [2024-10-31 22:04:51,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:04:51,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:51,587 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:51,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 185472285, now seen corresponding path program 1 times [2024-10-31 22:04:51,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:51,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368215767] [2024-10-31 22:04:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:51,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:51,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:51,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368215767] [2024-10-31 22:04:51,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368215767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:51,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:51,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:51,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122390306] [2024-10-31 22:04:51,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:51,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:51,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:51,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:51,990 INFO L87 Difference]: Start difference. First operand 450 states and 629 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) [2024-10-31 22:04:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:52,092 INFO L93 Difference]: Finished difference Result 894 states and 1251 transitions. [2024-10-31 22:04:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:52,092 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 [2024-10-31 22:04:52,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:52,095 INFO L225 Difference]: With dead ends: 894 [2024-10-31 22:04:52,095 INFO L226 Difference]: Without dead ends: 453 [2024-10-31 22:04:52,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:52,097 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 105 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1686 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:52,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1686 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-10-31 22:04:52,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 450. [2024-10-31 22:04:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 422 states have (on average 1.4265402843601895) internal successors, (602), 436 states have internal predecessors, (602), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:04:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 622 transitions. [2024-10-31 22:04:52,112 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 622 transitions. Word has length 64 [2024-10-31 22:04:52,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:52,113 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 622 transitions. [2024-10-31 22:04:52,113 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) [2024-10-31 22:04:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 622 transitions. [2024-10-31 22:04:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-31 22:04:52,115 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:52,115 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] [2024-10-31 22:04:52,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:04:52,116 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)] === [2024-10-31 22:04:52,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -878727663, now seen corresponding path program 1 times [2024-10-31 22:04:52,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:52,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609555156] [2024-10-31 22:04:52,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:52,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:52,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:52,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609555156] [2024-10-31 22:04:52,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609555156] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:52,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:52,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:04:52,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627518357] [2024-10-31 22:04:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:52,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:52,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:52,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:52,551 INFO L87 Difference]: Start difference. First operand 450 states and 622 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) [2024-10-31 22:04:52,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:52,635 INFO L93 Difference]: Finished difference Result 820 states and 1146 transitions. [2024-10-31 22:04:52,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:52,636 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 [2024-10-31 22:04:52,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:52,643 INFO L225 Difference]: With dead ends: 820 [2024-10-31 22:04:52,643 INFO L226 Difference]: Without dead ends: 816 [2024-10-31 22:04:52,646 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 [2024-10-31 22:04:52,647 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 456 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:52,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1820 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-31 22:04:52,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 808. [2024-10-31 22:04:52,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 777 states have (on average 1.4362934362934363) internal successors, (1116), 792 states have internal predecessors, (1116), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:04:52,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1142 transitions. [2024-10-31 22:04:52,680 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1142 transitions. Word has length 64 [2024-10-31 22:04:52,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:52,681 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1142 transitions. [2024-10-31 22:04:52,681 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) [2024-10-31 22:04:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1142 transitions. [2024-10-31 22:04:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-31 22:04:52,684 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:52,687 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] [2024-10-31 22:04:52,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:04:52,688 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-31 22:04:52,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:52,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1138317444, now seen corresponding path program 1 times [2024-10-31 22:04:52,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:52,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507798743] [2024-10-31 22:04:52,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:52,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:52,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:52,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507798743] [2024-10-31 22:04:52,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507798743] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:52,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:52,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:04:52,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022050636] [2024-10-31 22:04:52,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:52,976 INFO L87 Difference]: Start difference. First operand 808 states and 1142 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:53,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:53,180 INFO L93 Difference]: Finished difference Result 1821 states and 2600 transitions. [2024-10-31 22:04:53,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:04:53,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 70 [2024-10-31 22:04:53,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:53,191 INFO L225 Difference]: With dead ends: 1821 [2024-10-31 22:04:53,191 INFO L226 Difference]: Without dead ends: 1421 [2024-10-31 22:04:53,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:53,196 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 557 mSDsluCounter, 1215 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 566 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:53,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [566 Valid, 1848 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:53,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2024-10-31 22:04:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 808. [2024-10-31 22:04:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 777 states have (on average 1.435006435006435) internal successors, (1115), 792 states have internal predecessors, (1115), 13 states have call successors, (13), 6 states have call predecessors, (13), 4 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 22:04:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1141 transitions. [2024-10-31 22:04:53,245 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1141 transitions. Word has length 70 [2024-10-31 22:04:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:53,245 INFO L471 AbstractCegarLoop]: Abstraction has 808 states and 1141 transitions. [2024-10-31 22:04:53,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:53,246 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1141 transitions. [2024-10-31 22:04:53,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:04:53,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:53,251 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] [2024-10-31 22:04:53,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:04:53,251 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)] === [2024-10-31 22:04:53,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:53,252 INFO L85 PathProgramCache]: Analyzing trace with hash -238535306, now seen corresponding path program 1 times [2024-10-31 22:04:53,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:53,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550809197] [2024-10-31 22:04:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:53,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:53,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:04:53,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:53,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:53,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550809197] [2024-10-31 22:04:53,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550809197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:53,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:53,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:53,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589004142] [2024-10-31 22:04:53,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:53,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:04:53,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:53,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:04:53,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:04:53,641 INFO L87 Difference]: Start difference. First operand 808 states and 1141 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) [2024-10-31 22:04:53,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:53,855 INFO L93 Difference]: Finished difference Result 1038 states and 1455 transitions. [2024-10-31 22:04:53,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:53,856 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 [2024-10-31 22:04:53,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:53,864 INFO L225 Difference]: With dead ends: 1038 [2024-10-31 22:04:53,864 INFO L226 Difference]: Without dead ends: 1036 [2024-10-31 22:04:53,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:04:53,866 INFO L432 NwaCegarLoop]: 595 mSDtfsCounter, 513 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:53,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 1752 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-10-31 22:04:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1026. [2024-10-31 22:04:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 987 states have (on average 1.4356636271529888) internal successors, (1417), 1003 states have internal predecessors, (1417), 18 states have call successors, (18), 9 states have call predecessors, (18), 7 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 22:04:53,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1453 transitions. [2024-10-31 22:04:53,904 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1453 transitions. Word has length 74 [2024-10-31 22:04:53,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:53,905 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1453 transitions. [2024-10-31 22:04:53,905 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) [2024-10-31 22:04:53,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1453 transitions. [2024-10-31 22:04:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-31 22:04:53,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:53,907 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] [2024-10-31 22:04:53,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:04:53,907 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)] === [2024-10-31 22:04:53,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:53,908 INFO L85 PathProgramCache]: Analyzing trace with hash -676007271, now seen corresponding path program 1 times [2024-10-31 22:04:53,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:53,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171390571] [2024-10-31 22:04:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:53,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:54,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:04:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:54,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:04:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:54,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:54,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:54,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171390571] [2024-10-31 22:04:54,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171390571] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:54,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797623059] [2024-10-31 22:04:54,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:54,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:54,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:54,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:54,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:04:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:54,907 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:04:54,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:55,016 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:04:55,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797623059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:55,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:04:55,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-10-31 22:04:55,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865502573] [2024-10-31 22:04:55,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:55,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:04:55,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:55,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:04:55,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:04:55,019 INFO L87 Difference]: Start difference. First operand 1026 states and 1453 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) [2024-10-31 22:04:55,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:55,162 INFO L93 Difference]: Finished difference Result 1394 states and 1975 transitions. [2024-10-31 22:04:55,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:04:55,163 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 [2024-10-31 22:04:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:55,169 INFO L225 Difference]: With dead ends: 1394 [2024-10-31 22:04:55,170 INFO L226 Difference]: Without dead ends: 1393 [2024-10-31 22:04:55,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:04:55,172 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 579 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 2344 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:55,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 2344 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:04:55,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-10-31 22:04:55,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1189. [2024-10-31 22:04:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 1148 states have (on average 1.4355400696864111) internal successors, (1648), 1165 states have internal predecessors, (1648), 20 states have call successors, (20), 10 states have call predecessors, (20), 7 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:04:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1688 transitions. [2024-10-31 22:04:55,222 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1688 transitions. Word has length 83 [2024-10-31 22:04:55,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:55,223 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1688 transitions. [2024-10-31 22:04:55,223 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) [2024-10-31 22:04:55,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1688 transitions. [2024-10-31 22:04:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-31 22:04:55,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:55,226 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] [2024-10-31 22:04:55,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:04:55,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:55,427 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)] === [2024-10-31 22:04:55,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:55,428 INFO L85 PathProgramCache]: Analyzing trace with hash 518611120, now seen corresponding path program 1 times [2024-10-31 22:04:55,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:55,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628811872] [2024-10-31 22:04:55,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:55,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:55,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:04:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:55,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:04:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:55,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:55,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628811872] [2024-10-31 22:04:55,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628811872] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:04:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162649210] [2024-10-31 22:04:55,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:55,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:55,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:04:55,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:04:55,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:04:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:56,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:04:56,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:04:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:56,515 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:04:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:56,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162649210] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:04:56,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:04:56,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-10-31 22:04:56,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308635167] [2024-10-31 22:04:56,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:04:56,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 22:04:56,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:56,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 22:04:56,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-10-31 22:04:56,892 INFO L87 Difference]: Start difference. First operand 1189 states and 1688 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) [2024-10-31 22:04:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:59,193 INFO L93 Difference]: Finished difference Result 3238 states and 4588 transitions. [2024-10-31 22:04:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-10-31 22:04:59,194 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 [2024-10-31 22:04:59,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:59,206 INFO L225 Difference]: With dead ends: 3238 [2024-10-31 22:04:59,206 INFO L226 Difference]: Without dead ends: 3236 [2024-10-31 22:04:59,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-10-31 22:04:59,209 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 6424 mSDsluCounter, 6422 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6434 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:59,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6434 Valid, 7085 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-31 22:04:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2024-10-31 22:04:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 2747. [2024-10-31 22:04:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2659 states have (on average 1.4287326062429484) internal successors, (3799), 2678 states have internal predecessors, (3799), 56 states have call successors, (56), 23 states have call predecessors, (56), 18 states have return successors, (79), 45 states have call predecessors, (79), 56 states have call successors, (79) [2024-10-31 22:04:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3934 transitions. [2024-10-31 22:04:59,337 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3934 transitions. Word has length 84 [2024-10-31 22:04:59,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:59,338 INFO L471 AbstractCegarLoop]: Abstraction has 2747 states and 3934 transitions. [2024-10-31 22:04:59,339 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) [2024-10-31 22:04:59,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3934 transitions. [2024-10-31 22:04:59,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:04:59,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:59,341 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:04:59,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:04:59,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:04:59,542 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)] === [2024-10-31 22:04:59,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-10-31 22:04:59,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:59,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109044619] [2024-10-31 22:04:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:04:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:04:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:04:59,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:04:59,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109044619] [2024-10-31 22:04:59,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109044619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:04:59,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:04:59,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:04:59,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125513692] [2024-10-31 22:04:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:04:59,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:04:59,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:04:59,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:04:59,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:59,689 INFO L87 Difference]: Start difference. First operand 2747 states and 3934 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:59,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:04:59,863 INFO L93 Difference]: Finished difference Result 5553 states and 7970 transitions. [2024-10-31 22:04:59,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:04:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-10-31 22:04:59,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:04:59,874 INFO L225 Difference]: With dead ends: 5553 [2024-10-31 22:04:59,874 INFO L226 Difference]: Without dead ends: 2815 [2024-10-31 22:04:59,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:04:59,879 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 374 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 1387 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:04:59,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 1387 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:04:59,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2024-10-31 22:04:59,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2804. [2024-10-31 22:04:59,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 2723 states have (on average 1.4348145427836945) internal successors, (3907), 2741 states have internal predecessors, (3907), 50 states have call successors, (50), 21 states have call predecessors, (50), 17 states have return successors, (72), 41 states have call predecessors, (72), 50 states have call successors, (72) [2024-10-31 22:04:59,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4029 transitions. [2024-10-31 22:04:59,966 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4029 transitions. Word has length 82 [2024-10-31 22:04:59,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:04:59,967 INFO L471 AbstractCegarLoop]: Abstraction has 2804 states and 4029 transitions. [2024-10-31 22:04:59,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:04:59,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4029 transitions. [2024-10-31 22:04:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-31 22:04:59,968 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:04:59,968 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] [2024-10-31 22:04:59,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:04:59,968 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)] === [2024-10-31 22:04:59,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:04:59,969 INFO L85 PathProgramCache]: Analyzing trace with hash -2014395234, now seen corresponding path program 1 times [2024-10-31 22:04:59,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:04:59,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440057955] [2024-10-31 22:04:59,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:04:59,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:00,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:05:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:00,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:05:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:00,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:05:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:00,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440057955] [2024-10-31 22:05:00,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440057955] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925751587] [2024-10-31 22:05:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:00,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:00,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:00,456 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:00,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:05:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:00,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:05:00,789 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:00,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:00,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925751587] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:01,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:05:01,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 4] total 13 [2024-10-31 22:05:01,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432650342] [2024-10-31 22:05:01,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:01,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:01,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:05:01,228 INFO L87 Difference]: Start difference. First operand 2804 states and 4029 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) [2024-10-31 22:05:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:01,384 INFO L93 Difference]: Finished difference Result 2804 states and 4029 transitions. [2024-10-31 22:05:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:05:01,385 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 [2024-10-31 22:05:01,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:01,395 INFO L225 Difference]: With dead ends: 2804 [2024-10-31 22:05:01,395 INFO L226 Difference]: Without dead ends: 2803 [2024-10-31 22:05:01,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:05:01,397 INFO L432 NwaCegarLoop]: 610 mSDtfsCounter, 1188 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:01,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 610 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:05:01,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2024-10-31 22:05:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2803. [2024-10-31 22:05:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2723 states have (on average 1.4329783327212633) internal successors, (3902), 2740 states have internal predecessors, (3902), 50 states have call successors, (50), 21 states have call predecessors, (50), 17 states have return successors, (72), 41 states have call predecessors, (72), 50 states have call successors, (72) [2024-10-31 22:05:01,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4024 transitions. [2024-10-31 22:05:01,503 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4024 transitions. Word has length 93 [2024-10-31 22:05:01,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:01,503 INFO L471 AbstractCegarLoop]: Abstraction has 2803 states and 4024 transitions. [2024-10-31 22:05:01,503 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) [2024-10-31 22:05:01,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4024 transitions. [2024-10-31 22:05:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-31 22:05:01,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:01,506 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] [2024-10-31 22:05:01,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:05:01,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-31 22:05:01,706 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)] === [2024-10-31 22:05:01,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1978257255, now seen corresponding path program 1 times [2024-10-31 22:05:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:01,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403192838] [2024-10-31 22:05:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:01,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:02,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:05:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:02,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:05:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:02,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:05:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:02,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:02,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403192838] [2024-10-31 22:05:02,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403192838] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:02,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699360967] [2024-10-31 22:05:02,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:02,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:02,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:02,177 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:02,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:05:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:02,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:05:02,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:05:02,792 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:05:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:03,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699360967] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:05:03,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:05:03,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-10-31 22:05:03,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505940956] [2024-10-31 22:05:03,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:05:03,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:05:03,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:03,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:05:03,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:05:03,053 INFO L87 Difference]: Start difference. First operand 2803 states and 4024 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) [2024-10-31 22:05:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:04,206 INFO L93 Difference]: Finished difference Result 5398 states and 7716 transitions. [2024-10-31 22:05:04,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-31 22:05:04,207 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 [2024-10-31 22:05:04,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:04,225 INFO L225 Difference]: With dead ends: 5398 [2024-10-31 22:05:04,225 INFO L226 Difference]: Without dead ends: 5397 [2024-10-31 22:05:04,227 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 [2024-10-31 22:05:04,228 INFO L432 NwaCegarLoop]: 574 mSDtfsCounter, 2153 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2162 SdHoareTripleChecker+Valid, 4487 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:04,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2162 Valid, 4487 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:05:04,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5397 states. [2024-10-31 22:05:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5014. [2024-10-31 22:05:04,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 4858 states have (on average 1.4275421984355703) internal successors, (6935), 4878 states have internal predecessors, (6935), 99 states have call successors, (99), 50 states have call predecessors, (99), 44 states have return successors, (137), 85 states have call predecessors, (137), 99 states have call successors, (137) [2024-10-31 22:05:04,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7171 transitions. [2024-10-31 22:05:04,433 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7171 transitions. Word has length 94 [2024-10-31 22:05:04,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:04,433 INFO L471 AbstractCegarLoop]: Abstraction has 5014 states and 7171 transitions. [2024-10-31 22:05:04,434 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) [2024-10-31 22:05:04,434 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7171 transitions. [2024-10-31 22:05:04,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-31 22:05:04,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:04,436 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] [2024-10-31 22:05:04,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:05:04,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:05:04,637 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)] === [2024-10-31 22:05:04,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:04,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1276458826, now seen corresponding path program 1 times [2024-10-31 22:05:04,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:04,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433192604] [2024-10-31 22:05:04,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:04,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:05,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:05:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:05,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:05:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:05,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:05:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:05,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-31 22:05:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-31 22:05:05,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:05,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433192604] [2024-10-31 22:05:05,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433192604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:05,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:05:05,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:05:05,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084044527] [2024-10-31 22:05:05,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:05,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:05:05,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:05:05,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:05:05,138 INFO L87 Difference]: Start difference. First operand 5014 states and 7171 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) [2024-10-31 22:05:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:05,932 INFO L93 Difference]: Finished difference Result 6550 states and 9380 transitions. [2024-10-31 22:05:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:05:05,932 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 [2024-10-31 22:05:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:05,963 INFO L225 Difference]: With dead ends: 6550 [2024-10-31 22:05:05,963 INFO L226 Difference]: Without dead ends: 6548 [2024-10-31 22:05:05,966 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 [2024-10-31 22:05:05,967 INFO L432 NwaCegarLoop]: 561 mSDtfsCounter, 512 mSDsluCounter, 2105 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:05,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2666 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:05:05,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2024-10-31 22:05:06,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 5182. [2024-10-31 22:05:06,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5182 states, 5017 states have (on average 1.4217659956149094) internal successors, (7133), 5038 states have internal predecessors, (7133), 108 states have call successors, (108), 50 states have call predecessors, (108), 44 states have return successors, (149), 93 states have call predecessors, (149), 108 states have call successors, (149) [2024-10-31 22:05:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5182 states to 5182 states and 7390 transitions. [2024-10-31 22:05:06,248 INFO L78 Accepts]: Start accepts. Automaton has 5182 states and 7390 transitions. Word has length 120 [2024-10-31 22:05:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:06,248 INFO L471 AbstractCegarLoop]: Abstraction has 5182 states and 7390 transitions. [2024-10-31 22:05:06,249 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) [2024-10-31 22:05:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5182 states and 7390 transitions. [2024-10-31 22:05:06,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-31 22:05:06,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:06,251 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] [2024-10-31 22:05:06,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:05:06,251 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)] === [2024-10-31 22:05:06,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash -543684962, now seen corresponding path program 1 times [2024-10-31 22:05:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:06,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218686897] [2024-10-31 22:05:06,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:06,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:06,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:05:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:06,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:05:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:06,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-31 22:05:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:06,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-31 22:05:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:06,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218686897] [2024-10-31 22:05:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218686897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154105229] [2024-10-31 22:05:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:06,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:06,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:06,809 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:06,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:05:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:07,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:05:07,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-31 22:05:07,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:05:07,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154105229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:07,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:05:07,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-10-31 22:05:07,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88992213] [2024-10-31 22:05:07,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:07,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:05:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:05:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:05:07,558 INFO L87 Difference]: Start difference. First operand 5182 states and 7390 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) [2024-10-31 22:05:08,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:05:08,119 INFO L93 Difference]: Finished difference Result 9710 states and 13884 transitions. [2024-10-31 22:05:08,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:05:08,121 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 [2024-10-31 22:05:08,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:05:08,153 INFO L225 Difference]: With dead ends: 9710 [2024-10-31 22:05:08,153 INFO L226 Difference]: Without dead ends: 4932 [2024-10-31 22:05:08,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:05:08,164 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 161 mSDsluCounter, 2303 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:05:08,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 2893 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:05:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4932 states. [2024-10-31 22:05:08,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4932 to 4932. [2024-10-31 22:05:08,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4932 states, 4784 states have (on average 1.425376254180602) internal successors, (6819), 4803 states have internal predecessors, (6819), 97 states have call successors, (97), 44 states have call predecessors, (97), 38 states have return successors, (132), 84 states have call predecessors, (132), 97 states have call successors, (132) [2024-10-31 22:05:08,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4932 states to 4932 states and 7048 transitions. [2024-10-31 22:05:08,385 INFO L78 Accepts]: Start accepts. Automaton has 4932 states and 7048 transitions. Word has length 127 [2024-10-31 22:05:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:05:08,385 INFO L471 AbstractCegarLoop]: Abstraction has 4932 states and 7048 transitions. [2024-10-31 22:05:08,385 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) [2024-10-31 22:05:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 4932 states and 7048 transitions. [2024-10-31 22:05:08,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-31 22:05:08,389 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:05:08,389 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] [2024-10-31 22:05:08,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:05:08,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:05:08,590 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)] === [2024-10-31 22:05:08,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:05:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1097892489, now seen corresponding path program 1 times [2024-10-31 22:05:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:05:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937659200] [2024-10-31 22:05:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:05:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:09,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-31 22:05:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:09,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:05:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:09,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-31 22:05:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:09,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-31 22:05:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:09,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-31 22:05:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-31 22:05:09,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:05:09,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937659200] [2024-10-31 22:05:09,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937659200] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:05:09,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969121864] [2024-10-31 22:05:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:05:09,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:05:09,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:05:09,545 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:05:09,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9a4b6b8-8732-4942-829e-5807fcbce499/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:05:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:05:10,049 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-31 22:05:10,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:05:10,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:05:10,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-31 22:05:10,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-31 22:05:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-31 22:05:11,149 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:05:11,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969121864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:05:11,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:05:11,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2024-10-31 22:05:11,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878466065] [2024-10-31 22:05:11,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:05:11,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:05:11,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:05:11,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:05:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:05:11,152 INFO L87 Difference]: Start difference. First operand 4932 states and 7048 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 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)