./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:35:04,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:35:04,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:35:04,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:35:04,981 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:35:05,019 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:35:05,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:35:05,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:35:05,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:35:05,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:35:05,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:35:05,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:35:05,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:35:05,023 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:35:05,024 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:35:05,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:35:05,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:35:05,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:35:05,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:35:05,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:35:05,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:35:05,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:35:05,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:35:05,027 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:35:05,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:35:05,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:35:05,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:35:05,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:35:05,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:35:05,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:35:05,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:35:05,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:35:05,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:35:05,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:35:05,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:35:05,030 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2024-11-27 20:35:05,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:35:05,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:35:05,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:35:05,353 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:35:05,353 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:35:05,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2024-11-27 20:35:08,330 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/1daa4fcf6/df87df8e9a54471ab7fc4aa04d6070fb/FLAG87c91290b [2024-11-27 20:35:08,798 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:35:08,799 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2024-11-27 20:35:08,834 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/1daa4fcf6/df87df8e9a54471ab7fc4aa04d6070fb/FLAG87c91290b [2024-11-27 20:35:08,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/1daa4fcf6/df87df8e9a54471ab7fc4aa04d6070fb [2024-11-27 20:35:08,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:35:08,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:35:08,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:35:08,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:35:08,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:35:08,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:35:08" (1/1) ... [2024-11-27 20:35:08,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0043da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:08, skipping insertion in model container [2024-11-27 20:35:08,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:35:08" (1/1) ... [2024-11-27 20:35:08,993 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:35:09,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:35:09,753 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:35:09,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:35:10,020 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:35:10,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10 WrapperNode [2024-11-27 20:35:10,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:35:10,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:35:10,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:35:10,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:35:10,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,179 INFO L138 Inliner]: procedures = 282, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1452 [2024-11-27 20:35:10,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:35:10,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:35:10,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:35:10,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:35:10,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,210 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,346 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 12, 220, 34]. 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, 49, 4]. [2024-11-27 20:35:10,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,405 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,409 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,449 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:35:10,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:35:10,460 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:35:10,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:35:10,461 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (1/1) ... [2024-11-27 20:35:10,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:35:10,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:10,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:35:10,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:35:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 20:35:10,527 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 20:35:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:35:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:35:10,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-27 20:35:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:35:10,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:35:10,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-27 20:35:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-27 20:35:10,529 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:35:10,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:35:10,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:35:10,804 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:35:10,806 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:35:12,990 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2024-11-27 20:35:12,990 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:35:13,010 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:35:13,011 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-27 20:35:13,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:35:13 BoogieIcfgContainer [2024-11-27 20:35:13,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:35:13,014 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:35:13,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:35:13,025 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:35:13,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:35:08" (1/3) ... [2024-11-27 20:35:13,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4249e549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:35:13, skipping insertion in model container [2024-11-27 20:35:13,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:35:10" (2/3) ... [2024-11-27 20:35:13,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4249e549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:35:13, skipping insertion in model container [2024-11-27 20:35:13,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:35:13" (3/3) ... [2024-11-27 20:35:13,027 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2024-11-27 20:35:13,041 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:35:13,042 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test6-1.i that has 6 procedures, 468 locations, 1 initial locations, 36 loop locations, and 14 error locations. [2024-11-27 20:35:13,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:35:13,141 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;@6fd11486, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:35:13,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-27 20:35:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand has 468 states, 431 states have (on average 1.5986078886310904) internal successors, (689), 448 states have internal predecessors, (689), 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) [2024-11-27 20:35:13,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:35:13,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:13,156 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:13,157 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:13,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:13,163 INFO L85 PathProgramCache]: Analyzing trace with hash -885637860, now seen corresponding path program 1 times [2024-11-27 20:35:13,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:13,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151585440] [2024-11-27 20:35:13,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:13,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:13,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:13,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:13,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151585440] [2024-11-27 20:35:13,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151585440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:13,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:13,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:35:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444124642] [2024-11-27 20:35:13,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:13,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:35:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:13,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:35:13,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:35:13,441 INFO L87 Difference]: Start difference. First operand has 468 states, 431 states have (on average 1.5986078886310904) internal successors, (689), 448 states have internal predecessors, (689), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:13,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:13,529 INFO L93 Difference]: Finished difference Result 929 states and 1453 transitions. [2024-11-27 20:35:13,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:35:13,531 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:35:13,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:13,542 INFO L225 Difference]: With dead ends: 929 [2024-11-27 20:35:13,542 INFO L226 Difference]: Without dead ends: 449 [2024-11-27 20:35:13,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:35:13,553 INFO L435 NwaCegarLoop]: 647 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, 647 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:13,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:13,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-27 20:35:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2024-11-27 20:35:13,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 421 states have (on average 1.4418052256532066) internal successors, (607), 435 states have internal predecessors, (607), 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) [2024-11-27 20:35:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 627 transitions. [2024-11-27 20:35:13,659 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 627 transitions. Word has length 9 [2024-11-27 20:35:13,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:13,659 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 627 transitions. [2024-11-27 20:35:13,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:13,660 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 627 transitions. [2024-11-27 20:35:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:35:13,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:13,660 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:13,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:35:13,661 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:13,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:13,661 INFO L85 PathProgramCache]: Analyzing trace with hash -885635938, now seen corresponding path program 1 times [2024-11-27 20:35:13,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:13,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21937015] [2024-11-27 20:35:13,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:13,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:35:13,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181194593] [2024-11-27 20:35:13,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:13,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:13,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:13,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:13,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:35:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:13,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:35:13,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:14,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:35:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:14,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:14,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:14,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21937015] [2024-11-27 20:35:14,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:35:14,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181194593] [2024-11-27 20:35:14,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181194593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:14,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:14,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:35:14,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595333180] [2024-11-27 20:35:14,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:14,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:14,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:14,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:14,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:14,133 INFO L87 Difference]: Start difference. First operand 449 states and 627 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:14,386 INFO L93 Difference]: Finished difference Result 864 states and 1221 transitions. [2024-11-27 20:35:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:14,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:35:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:14,391 INFO L225 Difference]: With dead ends: 864 [2024-11-27 20:35:14,392 INFO L226 Difference]: Without dead ends: 863 [2024-11-27 20:35:14,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:14,393 INFO L435 NwaCegarLoop]: 654 mSDtfsCounter, 568 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:14,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 1903 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:35:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-11-27 20:35:14,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 456. [2024-11-27 20:35:14,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 428 states have (on average 1.4369158878504673) internal successors, (615), 442 states have internal predecessors, (615), 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) [2024-11-27 20:35:14,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 635 transitions. [2024-11-27 20:35:14,431 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 635 transitions. Word has length 9 [2024-11-27 20:35:14,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:14,431 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 635 transitions. [2024-11-27 20:35:14,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:14,431 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 635 transitions. [2024-11-27 20:35:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-27 20:35:14,432 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:14,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:14,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:14,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:14,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:14,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:14,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1684910197, now seen corresponding path program 1 times [2024-11-27 20:35:14,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:14,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987516968] [2024-11-27 20:35:14,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:14,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:35:14,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476941546] [2024-11-27 20:35:14,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:14,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:14,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:14,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:14,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:35:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:14,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:35:14,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:14,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:35:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:14,942 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:14,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:14,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987516968] [2024-11-27 20:35:14,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:35:14,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476941546] [2024-11-27 20:35:14,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476941546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:14,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:14,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:35:14,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069077176] [2024-11-27 20:35:14,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:14,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:14,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:14,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:14,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:14,944 INFO L87 Difference]: Start difference. First operand 456 states and 635 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:15,172 INFO L93 Difference]: Finished difference Result 863 states and 1220 transitions. [2024-11-27 20:35:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:15,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-27 20:35:15,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:15,184 INFO L225 Difference]: With dead ends: 863 [2024-11-27 20:35:15,184 INFO L226 Difference]: Without dead ends: 862 [2024-11-27 20:35:15,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:15,185 INFO L435 NwaCegarLoop]: 655 mSDtfsCounter, 566 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:15,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1904 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:35:15,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2024-11-27 20:35:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 457. [2024-11-27 20:35:15,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 429 states have (on average 1.435897435897436) internal successors, (616), 443 states have internal predecessors, (616), 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) [2024-11-27 20:35:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 636 transitions. [2024-11-27 20:35:15,239 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 636 transitions. Word has length 10 [2024-11-27 20:35:15,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:15,240 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 636 transitions. [2024-11-27 20:35:15,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 636 transitions. [2024-11-27 20:35:15,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 20:35:15,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:15,245 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:15,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:15,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:15,449 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:15,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:15,450 INFO L85 PathProgramCache]: Analyzing trace with hash 970279471, now seen corresponding path program 1 times [2024-11-27 20:35:15,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:15,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137617597] [2024-11-27 20:35:15,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:15,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:15,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:15,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:15,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137617597] [2024-11-27 20:35:15,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137617597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:15,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:15,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:35:15,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652983330] [2024-11-27 20:35:15,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:15,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:35:15,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:15,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:35:15,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:35:15,866 INFO L87 Difference]: Start difference. First operand 457 states and 636 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:15,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:15,997 INFO L93 Difference]: Finished difference Result 924 states and 1291 transitions. [2024-11-27 20:35:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:35:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 65 [2024-11-27 20:35:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:16,004 INFO L225 Difference]: With dead ends: 924 [2024-11-27 20:35:16,004 INFO L226 Difference]: Without dead ends: 477 [2024-11-27 20:35:16,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:35:16,007 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 9 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:16,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1199 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:16,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-27 20:35:16,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2024-11-27 20:35:16,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 449 states have (on average 1.4164810690423162) internal successors, (636), 463 states have internal predecessors, (636), 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) [2024-11-27 20:35:16,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 656 transitions. [2024-11-27 20:35:16,035 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 656 transitions. Word has length 65 [2024-11-27 20:35:16,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:16,035 INFO L471 AbstractCegarLoop]: Abstraction has 477 states and 656 transitions. [2024-11-27 20:35:16,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 656 transitions. [2024-11-27 20:35:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 20:35:16,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:16,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:16,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:35:16,040 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:16,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1275100723, now seen corresponding path program 1 times [2024-11-27 20:35:16,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29320254] [2024-11-27 20:35:16,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:16,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:16,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:16,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29320254] [2024-11-27 20:35:16,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29320254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:16,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:16,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:35:16,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272461510] [2024-11-27 20:35:16,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:16,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:16,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:16,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:16,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:16,409 INFO L87 Difference]: Start difference. First operand 477 states and 656 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:16,517 INFO L93 Difference]: Finished difference Result 930 states and 1287 transitions. [2024-11-27 20:35:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:16,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 65 [2024-11-27 20:35:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:16,521 INFO L225 Difference]: With dead ends: 930 [2024-11-27 20:35:16,521 INFO L226 Difference]: Without dead ends: 463 [2024-11-27 20:35:16,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:16,524 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 106 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:16,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1703 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-27 20:35:16,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2024-11-27 20:35:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 435 states have (on average 1.4137931034482758) internal successors, (615), 449 states have internal predecessors, (615), 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) [2024-11-27 20:35:16,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 635 transitions. [2024-11-27 20:35:16,555 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 635 transitions. Word has length 65 [2024-11-27 20:35:16,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:16,556 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 635 transitions. [2024-11-27 20:35:16,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:16,556 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 635 transitions. [2024-11-27 20:35:16,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 20:35:16,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:16,559 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:16,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:35:16,560 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:16,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:16,560 INFO L85 PathProgramCache]: Analyzing trace with hash 459047269, now seen corresponding path program 1 times [2024-11-27 20:35:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569768195] [2024-11-27 20:35:16,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:16,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:16,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:16,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:16,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569768195] [2024-11-27 20:35:16,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569768195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:16,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:16,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:35:16,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053564279] [2024-11-27 20:35:16,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:16,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:16,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:16,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:16,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:16,948 INFO L87 Difference]: Start difference. First operand 463 states and 635 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:17,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:17,029 INFO L93 Difference]: Finished difference Result 843 states and 1169 transitions. [2024-11-27 20:35:17,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:17,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 65 [2024-11-27 20:35:17,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:17,038 INFO L225 Difference]: With dead ends: 843 [2024-11-27 20:35:17,039 INFO L226 Difference]: Without dead ends: 839 [2024-11-27 20:35:17,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:17,040 INFO L435 NwaCegarLoop]: 615 mSDtfsCounter, 459 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 1838 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 [2024-11-27 20:35:17,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 1838 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:17,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-27 20:35:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 831. [2024-11-27 20:35:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 800 states have (on average 1.42375) internal successors, (1139), 815 states have internal predecessors, (1139), 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) [2024-11-27 20:35:17,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1165 transitions. [2024-11-27 20:35:17,093 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1165 transitions. Word has length 65 [2024-11-27 20:35:17,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:17,094 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1165 transitions. [2024-11-27 20:35:17,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:17,094 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1165 transitions. [2024-11-27 20:35:17,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-27 20:35:17,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:17,097 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:17,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:35:17,098 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:17,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:17,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1256927071, now seen corresponding path program 1 times [2024-11-27 20:35:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670039756] [2024-11-27 20:35:17,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:17,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:17,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670039756] [2024-11-27 20:35:17,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670039756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:17,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:17,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:35:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651574780] [2024-11-27 20:35:17,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:17,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:17,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:17,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:17,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:17,471 INFO L87 Difference]: Start difference. First operand 831 states and 1165 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:17,653 INFO L93 Difference]: Finished difference Result 1861 states and 2640 transitions. [2024-11-27 20:35:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:17,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 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 71 [2024-11-27 20:35:17,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:17,660 INFO L225 Difference]: With dead ends: 1861 [2024-11-27 20:35:17,660 INFO L226 Difference]: Without dead ends: 1457 [2024-11-27 20:35:17,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:17,662 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 563 mSDsluCounter, 1193 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1800 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 [2024-11-27 20:35:17,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1800 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-27 20:35:17,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 831. [2024-11-27 20:35:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 800 states have (on average 1.4225) internal successors, (1138), 815 states have internal predecessors, (1138), 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) [2024-11-27 20:35:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1164 transitions. [2024-11-27 20:35:17,700 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1164 transitions. Word has length 71 [2024-11-27 20:35:17,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:17,700 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1164 transitions. [2024-11-27 20:35:17,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:17,701 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1164 transitions. [2024-11-27 20:35:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 20:35:17,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:17,703 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:17,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:35:17,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:17,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:17,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1733272106, now seen corresponding path program 1 times [2024-11-27 20:35:17,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:17,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214521775] [2024-11-27 20:35:17,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:17,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:18,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:18,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:18,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214521775] [2024-11-27 20:35:18,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214521775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:18,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:18,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:35:18,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959264882] [2024-11-27 20:35:18,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:18,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:35:18,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:18,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:35:18,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:35:18,007 INFO L87 Difference]: Start difference. First operand 831 states and 1164 transitions. Second operand has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:35:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:18,059 INFO L93 Difference]: Finished difference Result 1063 states and 1480 transitions. [2024-11-27 20:35:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:35:18,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 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 75 [2024-11-27 20:35:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:18,067 INFO L225 Difference]: With dead ends: 1063 [2024-11-27 20:35:18,067 INFO L226 Difference]: Without dead ends: 1061 [2024-11-27 20:35:18,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:35:18,070 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 485 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:18,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1232 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:18,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2024-11-27 20:35:18,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1051. [2024-11-27 20:35:18,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 1012 states have (on average 1.424901185770751) internal successors, (1442), 1028 states have internal predecessors, (1442), 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) [2024-11-27 20:35:18,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1478 transitions. [2024-11-27 20:35:18,127 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1478 transitions. Word has length 75 [2024-11-27 20:35:18,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:18,127 INFO L471 AbstractCegarLoop]: Abstraction has 1051 states and 1478 transitions. [2024-11-27 20:35:18,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:35:18,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1478 transitions. [2024-11-27 20:35:18,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:35:18,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:18,129 INFO L218 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, 1] [2024-11-27 20:35:18,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:35:18,129 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:18,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash 539465967, now seen corresponding path program 1 times [2024-11-27 20:35:18,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:18,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184563728] [2024-11-27 20:35:18,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:18,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:18,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:18,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184563728] [2024-11-27 20:35:18,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184563728] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:18,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500424532] [2024-11-27 20:35:18,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:18,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:18,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:18,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:18,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:35:19,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:19,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:35:19,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:19,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:19,160 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:19,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500424532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:19,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:19,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-27 20:35:19,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706924875] [2024-11-27 20:35:19,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:19,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:35:19,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:19,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:35:19,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:35:19,162 INFO L87 Difference]: Start difference. First operand 1051 states and 1478 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:35:19,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:19,277 INFO L93 Difference]: Finished difference Result 1429 states and 2010 transitions. [2024-11-27 20:35:19,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:35:19,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 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 84 [2024-11-27 20:35:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:19,286 INFO L225 Difference]: With dead ends: 1429 [2024-11-27 20:35:19,286 INFO L226 Difference]: Without dead ends: 1428 [2024-11-27 20:35:19,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:35:19,288 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 585 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:19,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 1756 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:19,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-27 20:35:19,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1222. [2024-11-27 20:35:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 1181 states have (on average 1.4233700254022015) internal successors, (1681), 1198 states have internal predecessors, (1681), 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) [2024-11-27 20:35:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1721 transitions. [2024-11-27 20:35:19,339 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1721 transitions. Word has length 84 [2024-11-27 20:35:19,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:19,339 INFO L471 AbstractCegarLoop]: Abstraction has 1222 states and 1721 transitions. [2024-11-27 20:35:19,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:35:19,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1721 transitions. [2024-11-27 20:35:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:35:19,340 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:19,340 INFO L218 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, 1] [2024-11-27 20:35:19,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:35:19,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:19,544 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:19,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:19,544 INFO L85 PathProgramCache]: Analyzing trace with hash -456424166, now seen corresponding path program 1 times [2024-11-27 20:35:19,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:19,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250337624] [2024-11-27 20:35:19,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:19,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:19,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250337624] [2024-11-27 20:35:19,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250337624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624156069] [2024-11-27 20:35:19,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:19,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:19,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:19,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:19,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:35:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:20,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:35:20,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:20,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:20,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624156069] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:20,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:35:20,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 17 [2024-11-27 20:35:20,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242214869] [2024-11-27 20:35:20,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:20,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:35:20,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:20,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:35:20,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:35:20,935 INFO L87 Difference]: Start difference. First operand 1222 states and 1721 transitions. Second operand has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 15 states have internal predecessors, (228), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:35:22,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:22,229 INFO L93 Difference]: Finished difference Result 3335 states and 4685 transitions. [2024-11-27 20:35:22,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:35:22,229 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 15 states have internal predecessors, (228), 5 states have call successors, (8), 6 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 85 [2024-11-27 20:35:22,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:22,245 INFO L225 Difference]: With dead ends: 3335 [2024-11-27 20:35:22,245 INFO L226 Difference]: Without dead ends: 3333 [2024-11-27 20:35:22,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=376, Invalid=884, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:35:22,248 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 5459 mSDsluCounter, 7237 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5469 SdHoareTripleChecker+Valid, 7921 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:22,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5469 Valid, 7921 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:35:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2024-11-27 20:35:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2836. [2024-11-27 20:35:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2748 states have (on average 1.4148471615720524) internal successors, (3888), 2767 states have internal predecessors, (3888), 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) [2024-11-27 20:35:22,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4023 transitions. [2024-11-27 20:35:22,432 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4023 transitions. Word has length 85 [2024-11-27 20:35:22,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:22,433 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 4023 transitions. [2024-11-27 20:35:22,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 15 states have internal predecessors, (228), 5 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-27 20:35:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4023 transitions. [2024-11-27 20:35:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 20:35:22,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:22,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:22,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:35:22,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:22,636 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:22,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1558007445, now seen corresponding path program 1 times [2024-11-27 20:35:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:22,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532969244] [2024-11-27 20:35:22,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:22,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:22,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:22,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:22,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532969244] [2024-11-27 20:35:22,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532969244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:22,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:22,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:35:22,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749890723] [2024-11-27 20:35:22,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:22,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:35:22,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:22,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:35:22,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:35:22,857 INFO L87 Difference]: Start difference. First operand 2836 states and 4023 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:23,111 INFO L93 Difference]: Finished difference Result 5728 states and 8145 transitions. [2024-11-27 20:35:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:35:23,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 83 [2024-11-27 20:35:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:23,125 INFO L225 Difference]: With dead ends: 5728 [2024-11-27 20:35:23,126 INFO L226 Difference]: Without dead ends: 2902 [2024-11-27 20:35:23,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:35:23,133 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 376 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 1400 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 [2024-11-27 20:35:23,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 1400 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:23,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2024-11-27 20:35:23,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 2891. [2024-11-27 20:35:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2891 states, 2810 states have (on average 1.4213523131672599) internal successors, (3994), 2828 states have internal predecessors, (3994), 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) [2024-11-27 20:35:23,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2891 states to 2891 states and 4116 transitions. [2024-11-27 20:35:23,258 INFO L78 Accepts]: Start accepts. Automaton has 2891 states and 4116 transitions. Word has length 83 [2024-11-27 20:35:23,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:23,259 INFO L471 AbstractCegarLoop]: Abstraction has 2891 states and 4116 transitions. [2024-11-27 20:35:23,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:35:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2891 states and 4116 transitions. [2024-11-27 20:35:23,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-27 20:35:23,261 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:23,264 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:23,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:35:23,265 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:23,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:23,265 INFO L85 PathProgramCache]: Analyzing trace with hash 17408468, now seen corresponding path program 1 times [2024-11-27 20:35:23,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:23,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883205253] [2024-11-27 20:35:23,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:23,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:23,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:35:23,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:23,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883205253] [2024-11-27 20:35:23,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883205253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:23,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741899769] [2024-11-27 20:35:23,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:23,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:23,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:23,735 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:23,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:35:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:24,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:35:24,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:24,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:24,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:24,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:35:24,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741899769] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:24,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:24,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4] total 12 [2024-11-27 20:35:24,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893299036] [2024-11-27 20:35:24,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:24,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:35:24,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:24,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:35:24,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:24,656 INFO L87 Difference]: Start difference. First operand 2891 states and 4116 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:35:24,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:24,743 INFO L93 Difference]: Finished difference Result 2891 states and 4116 transitions. [2024-11-27 20:35:24,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:35:24,744 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 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 94 [2024-11-27 20:35:24,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:24,759 INFO L225 Difference]: With dead ends: 2891 [2024-11-27 20:35:24,759 INFO L226 Difference]: Without dead ends: 2890 [2024-11-27 20:35:24,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:24,762 INFO L435 NwaCegarLoop]: 616 mSDtfsCounter, 610 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:24,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 616 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:24,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2890 states. [2024-11-27 20:35:24,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2890 to 2890. [2024-11-27 20:35:24,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2810 states have (on average 1.4195729537366548) internal successors, (3989), 2827 states have internal predecessors, (3989), 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) [2024-11-27 20:35:24,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4111 transitions. [2024-11-27 20:35:24,898 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4111 transitions. Word has length 94 [2024-11-27 20:35:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:24,899 INFO L471 AbstractCegarLoop]: Abstraction has 2890 states and 4111 transitions. [2024-11-27 20:35:24,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:35:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4111 transitions. [2024-11-27 20:35:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 20:35:24,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:24,902 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:24,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:35:25,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 20:35:25,103 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:25,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash 539662577, now seen corresponding path program 1 times [2024-11-27 20:35:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:25,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309042494] [2024-11-27 20:35:25,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:35:25,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:25,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309042494] [2024-11-27 20:35:25,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309042494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:25,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287216754] [2024-11-27 20:35:25,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:25,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:25,481 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:25,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:35:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:25,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:35:25,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:26,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:35:26,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287216754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:26,338 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:35:26,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 12 [2024-11-27 20:35:26,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017498246] [2024-11-27 20:35:26,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:26,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:35:26,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:26,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:35:26,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:26,342 INFO L87 Difference]: Start difference. First operand 2890 states and 4111 transitions. Second operand has 13 states, 12 states have (on average 20.0) internal successors, (240), 13 states have internal predecessors, (240), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 20:35:27,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:27,121 INFO L93 Difference]: Finished difference Result 5541 states and 7859 transitions. [2024-11-27 20:35:27,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:35:27,122 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 20.0) internal successors, (240), 13 states have internal predecessors, (240), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 95 [2024-11-27 20:35:27,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:27,144 INFO L225 Difference]: With dead ends: 5541 [2024-11-27 20:35:27,145 INFO L226 Difference]: Without dead ends: 5540 [2024-11-27 20:35:27,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:35:27,149 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 3049 mSDsluCounter, 3055 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:27,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 3640 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:35:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5540 states. [2024-11-27 20:35:27,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5154. [2024-11-27 20:35:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 4998 states have (on average 1.4155662264905962) internal successors, (7075), 5018 states have internal predecessors, (7075), 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) [2024-11-27 20:35:27,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 7311 transitions. [2024-11-27 20:35:27,375 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 7311 transitions. Word has length 95 [2024-11-27 20:35:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:27,375 INFO L471 AbstractCegarLoop]: Abstraction has 5154 states and 7311 transitions. [2024-11-27 20:35:27,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 20.0) internal successors, (240), 13 states have internal predecessors, (240), 5 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 20:35:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 7311 transitions. [2024-11-27 20:35:27,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-27 20:35:27,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:27,380 INFO L218 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, 1] [2024-11-27 20:35:27,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:35:27,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 20:35:27,584 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:27,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:27,585 INFO L85 PathProgramCache]: Analyzing trace with hash 914793232, now seen corresponding path program 1 times [2024-11-27 20:35:27,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:27,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317813987] [2024-11-27 20:35:27,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:27,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:35:28,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:28,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317813987] [2024-11-27 20:35:28,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317813987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:28,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:28,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:35:28,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680093800] [2024-11-27 20:35:28,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:28,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:35:28,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:28,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:35:28,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:35:28,060 INFO L87 Difference]: Start difference. First operand 5154 states and 7311 transitions. Second operand has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:35:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:28,377 INFO L93 Difference]: Finished difference Result 6706 states and 9536 transitions. [2024-11-27 20:35:28,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:35:28,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (4), 1 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 121 [2024-11-27 20:35:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:28,408 INFO L225 Difference]: With dead ends: 6706 [2024-11-27 20:35:28,408 INFO L226 Difference]: Without dead ends: 6704 [2024-11-27 20:35:28,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:35:28,412 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 474 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:28,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 1778 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:28,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2024-11-27 20:35:28,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 5326. [2024-11-27 20:35:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5326 states, 5161 states have (on average 1.4099980623910096) internal successors, (7277), 5182 states have internal predecessors, (7277), 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) [2024-11-27 20:35:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 7534 transitions. [2024-11-27 20:35:28,732 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 7534 transitions. Word has length 121 [2024-11-27 20:35:28,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:28,732 INFO L471 AbstractCegarLoop]: Abstraction has 5326 states and 7534 transitions. [2024-11-27 20:35:28,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 4 states have internal predecessors, (101), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:35:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 7534 transitions. [2024-11-27 20:35:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-27 20:35:28,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:28,735 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:28,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:35:28,736 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:28,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:28,736 INFO L85 PathProgramCache]: Analyzing trace with hash 461929138, now seen corresponding path program 1 times [2024-11-27 20:35:28,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:28,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077077123] [2024-11-27 20:35:28,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:28,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:35:29,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:29,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077077123] [2024-11-27 20:35:29,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077077123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:29,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922319980] [2024-11-27 20:35:29,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:29,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:29,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:29,260 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:29,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:35:29,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:29,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:35:29,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-27 20:35:29,907 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:29,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922319980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:29,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:29,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 10 [2024-11-27 20:35:29,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088572378] [2024-11-27 20:35:29,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:29,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:35:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:29,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:35:29,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:35:29,910 INFO L87 Difference]: Start difference. First operand 5326 states and 7534 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:35:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:30,311 INFO L93 Difference]: Finished difference Result 9974 states and 14148 transitions. [2024-11-27 20:35:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:35:30,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 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 129 [2024-11-27 20:35:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:30,332 INFO L225 Difference]: With dead ends: 9974 [2024-11-27 20:35:30,332 INFO L226 Difference]: Without dead ends: 5068 [2024-11-27 20:35:30,339 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:30,340 INFO L435 NwaCegarLoop]: 596 mSDtfsCounter, 162 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 3500 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:30,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 3500 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:35:30,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5068 states. [2024-11-27 20:35:30,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5068 to 5068. [2024-11-27 20:35:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5068 states, 4920 states have (on average 1.4136178861788617) internal successors, (6955), 4939 states have internal predecessors, (6955), 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) [2024-11-27 20:35:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5068 states to 5068 states and 7184 transitions. [2024-11-27 20:35:30,535 INFO L78 Accepts]: Start accepts. Automaton has 5068 states and 7184 transitions. Word has length 129 [2024-11-27 20:35:30,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:30,536 INFO L471 AbstractCegarLoop]: Abstraction has 5068 states and 7184 transitions. [2024-11-27 20:35:30,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:35:30,540 INFO L276 IsEmpty]: Start isEmpty. Operand 5068 states and 7184 transitions. [2024-11-27 20:35:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-27 20:35:30,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:30,542 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:30,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:35:30,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:30,742 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:30,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:30,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1206407640, now seen corresponding path program 1 times [2024-11-27 20:35:30,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:30,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464289363] [2024-11-27 20:35:30,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:30,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:35:31,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:31,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464289363] [2024-11-27 20:35:31,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464289363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:31,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143709887] [2024-11-27 20:35:31,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:31,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:31,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:31,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:35:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:31,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:35:31,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:35:32,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:32,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143709887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:32,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:32,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2024-11-27 20:35:32,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452526270] [2024-11-27 20:35:32,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:32,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:35:32,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:32,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:35:32,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:35:32,047 INFO L87 Difference]: Start difference. First operand 5068 states and 7184 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:35:32,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:32,936 INFO L93 Difference]: Finished difference Result 10728 states and 15146 transitions. [2024-11-27 20:35:32,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:35:32,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-27 20:35:32,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:32,956 INFO L225 Difference]: With dead ends: 10728 [2024-11-27 20:35:32,956 INFO L226 Difference]: Without dead ends: 5757 [2024-11-27 20:35:32,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:35:32,965 INFO L435 NwaCegarLoop]: 600 mSDtfsCounter, 31 mSDsluCounter, 2536 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:32,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3136 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:35:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5757 states. [2024-11-27 20:35:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5757 to 5588. [2024-11-27 20:35:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5588 states, 5440 states have (on average 1.3931985294117648) internal successors, (7579), 5459 states have internal predecessors, (7579), 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) [2024-11-27 20:35:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5588 states to 5588 states and 7808 transitions. [2024-11-27 20:35:33,161 INFO L78 Accepts]: Start accepts. Automaton has 5588 states and 7808 transitions. Word has length 134 [2024-11-27 20:35:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:33,162 INFO L471 AbstractCegarLoop]: Abstraction has 5588 states and 7808 transitions. [2024-11-27 20:35:33,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:35:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 5588 states and 7808 transitions. [2024-11-27 20:35:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-27 20:35:33,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:33,164 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:33,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:35:33,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:33,368 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:33,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:33,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1241348577, now seen corresponding path program 1 times [2024-11-27 20:35:33,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:33,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923079569] [2024-11-27 20:35:33,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:33,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:35:34,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:34,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923079569] [2024-11-27 20:35:34,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923079569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:34,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:34,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:35:34,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318145769] [2024-11-27 20:35:34,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:34,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:35:34,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:34,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:35:34,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:34,064 INFO L87 Difference]: Start difference. First operand 5588 states and 7808 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:35:35,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:35,010 INFO L93 Difference]: Finished difference Result 11064 states and 15472 transitions. [2024-11-27 20:35:35,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:35:35,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-27 20:35:35,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:35,027 INFO L225 Difference]: With dead ends: 11064 [2024-11-27 20:35:35,027 INFO L226 Difference]: Without dead ends: 5614 [2024-11-27 20:35:35,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:35,036 INFO L435 NwaCegarLoop]: 606 mSDtfsCounter, 14 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:35,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2475 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:35:35,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5614 states. [2024-11-27 20:35:35,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5614 to 5549. [2024-11-27 20:35:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5401 states have (on average 1.39122384743566) internal successors, (7514), 5420 states have internal predecessors, (7514), 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) [2024-11-27 20:35:35,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 7743 transitions. [2024-11-27 20:35:35,217 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 7743 transitions. Word has length 135 [2024-11-27 20:35:35,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:35,218 INFO L471 AbstractCegarLoop]: Abstraction has 5549 states and 7743 transitions. [2024-11-27 20:35:35,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:35:35,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 7743 transitions. [2024-11-27 20:35:35,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 20:35:35,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:35,221 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:35,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:35:35,221 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:35,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:35,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2107797347, now seen corresponding path program 1 times [2024-11-27 20:35:35,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:35,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140458707] [2024-11-27 20:35:35,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:35,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:35:35,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:35,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140458707] [2024-11-27 20:35:35,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140458707] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:35,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:35,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:35:35,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352137657] [2024-11-27 20:35:35,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:35,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:35:35,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:35,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:35:35,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:35,831 INFO L87 Difference]: Start difference. First operand 5549 states and 7743 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:35:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:36,504 INFO L93 Difference]: Finished difference Result 11052 states and 15436 transitions. [2024-11-27 20:35:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:35:36,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-11-27 20:35:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:36,521 INFO L225 Difference]: With dead ends: 11052 [2024-11-27 20:35:36,522 INFO L226 Difference]: Without dead ends: 5640 [2024-11-27 20:35:36,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:35:36,530 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 9 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:36,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2057 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:35:36,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5640 states. [2024-11-27 20:35:36,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5640 to 5601. [2024-11-27 20:35:36,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5601 states, 5453 states have (on average 1.3898771318540253) internal successors, (7579), 5472 states have internal predecessors, (7579), 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) [2024-11-27 20:35:36,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5601 states to 5601 states and 7808 transitions. [2024-11-27 20:35:36,699 INFO L78 Accepts]: Start accepts. Automaton has 5601 states and 7808 transitions. Word has length 136 [2024-11-27 20:35:36,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:36,699 INFO L471 AbstractCegarLoop]: Abstraction has 5601 states and 7808 transitions. [2024-11-27 20:35:36,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:35:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5601 states and 7808 transitions. [2024-11-27 20:35:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:35:36,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:36,702 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:36,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:35:36,702 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:36,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:36,702 INFO L85 PathProgramCache]: Analyzing trace with hash 197178600, now seen corresponding path program 1 times [2024-11-27 20:35:36,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:36,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740821151] [2024-11-27 20:35:36,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:36,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:35:37,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:37,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740821151] [2024-11-27 20:35:37,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740821151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:37,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556864060] [2024-11-27 20:35:37,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:37,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:37,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:37,321 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:37,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:35:37,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:37,850 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:35:37,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:37,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:35:37,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:35:37,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-27 20:35:38,600 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:35:38,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 55 [2024-11-27 20:35:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:35:39,192 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556864060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:39,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:39,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-27 20:35:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849116053] [2024-11-27 20:35:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:39,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:35:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:39,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:35:39,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:35:39,195 INFO L87 Difference]: Start difference. First operand 5601 states and 7808 transitions. Second operand has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:35:41,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:41,727 INFO L93 Difference]: Finished difference Result 12453 states and 17438 transitions. [2024-11-27 20:35:41,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:35:41,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-27 20:35:41,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:41,752 INFO L225 Difference]: With dead ends: 12453 [2024-11-27 20:35:41,753 INFO L226 Difference]: Without dead ends: 6990 [2024-11-27 20:35:41,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:35:41,762 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 837 mSDsluCounter, 2847 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:41,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 3432 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:35:41,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2024-11-27 20:35:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 5606. [2024-11-27 20:35:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 5458 states have (on average 1.3895199706852326) internal successors, (7584), 5477 states have internal predecessors, (7584), 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) [2024-11-27 20:35:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 7813 transitions. [2024-11-27 20:35:41,939 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 7813 transitions. Word has length 137 [2024-11-27 20:35:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:41,939 INFO L471 AbstractCegarLoop]: Abstraction has 5606 states and 7813 transitions. [2024-11-27 20:35:41,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.545454545454545) internal successors, (116), 11 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:35:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 7813 transitions. [2024-11-27 20:35:41,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:35:41,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:41,942 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:41,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:42,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:42,144 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:42,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1556139312, now seen corresponding path program 1 times [2024-11-27 20:35:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:42,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096679985] [2024-11-27 20:35:42,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:42,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-27 20:35:42,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:42,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096679985] [2024-11-27 20:35:42,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096679985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:42,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:35:42,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:35:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144484979] [2024-11-27 20:35:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:42,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:35:42,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:42,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:35:42,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:42,590 INFO L87 Difference]: Start difference. First operand 5606 states and 7813 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:35:43,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:43,523 INFO L93 Difference]: Finished difference Result 11215 states and 15659 transitions. [2024-11-27 20:35:43,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:35:43,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 137 [2024-11-27 20:35:43,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:43,543 INFO L225 Difference]: With dead ends: 11215 [2024-11-27 20:35:43,543 INFO L226 Difference]: Without dead ends: 5762 [2024-11-27 20:35:43,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:35:43,551 INFO L435 NwaCegarLoop]: 598 mSDtfsCounter, 13 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:43,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2971 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:35:43,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2024-11-27 20:35:43,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 5710. [2024-11-27 20:35:43,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 5562 states have (on average 1.3892484717727436) internal successors, (7727), 5581 states have internal predecessors, (7727), 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) [2024-11-27 20:35:43,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 7956 transitions. [2024-11-27 20:35:43,727 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 7956 transitions. Word has length 137 [2024-11-27 20:35:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:43,727 INFO L471 AbstractCegarLoop]: Abstraction has 5710 states and 7956 transitions. [2024-11-27 20:35:43,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:35:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 7956 transitions. [2024-11-27 20:35:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-27 20:35:43,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:43,729 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:43,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:35:43,730 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:43,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:43,730 INFO L85 PathProgramCache]: Analyzing trace with hash 587948564, now seen corresponding path program 1 times [2024-11-27 20:35:43,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:43,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713395797] [2024-11-27 20:35:43,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:43,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:35:44,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:44,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713395797] [2024-11-27 20:35:44,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713395797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:44,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674593033] [2024-11-27 20:35:44,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:44,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:44,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:44,297 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:44,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:35:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:44,940 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:35:44,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:45,059 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:35:45,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:45,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674593033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:45,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:45,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 11 [2024-11-27 20:35:45,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361781486] [2024-11-27 20:35:45,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:45,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:35:45,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:45,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:35:45,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:35:45,062 INFO L87 Difference]: Start difference. First operand 5710 states and 7956 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:35:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:45,279 INFO L93 Difference]: Finished difference Result 8972 states and 12501 transitions. [2024-11-27 20:35:45,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:35:45,280 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-27 20:35:45,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:45,292 INFO L225 Difference]: With dead ends: 8972 [2024-11-27 20:35:45,292 INFO L226 Difference]: Without dead ends: 3451 [2024-11-27 20:35:45,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:35:45,302 INFO L435 NwaCegarLoop]: 610 mSDtfsCounter, 13 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:45,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4848 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:35:45,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3451 states. [2024-11-27 20:35:45,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3451 to 3449. [2024-11-27 20:35:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 3347 states have (on average 1.389005079175381) internal successors, (4649), 3363 states have internal predecessors, (4649), 54 states have call successors, (54), 38 states have call predecessors, (54), 35 states have return successors, (65), 47 states have call predecessors, (65), 54 states have call successors, (65) [2024-11-27 20:35:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 4768 transitions. [2024-11-27 20:35:45,409 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 4768 transitions. Word has length 137 [2024-11-27 20:35:45,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:45,410 INFO L471 AbstractCegarLoop]: Abstraction has 3449 states and 4768 transitions. [2024-11-27 20:35:45,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 20:35:45,410 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 4768 transitions. [2024-11-27 20:35:45,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-27 20:35:45,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:45,412 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:45,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:35:45,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:45,616 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:45,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:45,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1059836658, now seen corresponding path program 1 times [2024-11-27 20:35:45,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:45,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932767646] [2024-11-27 20:35:45,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:45,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:35:46,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932767646] [2024-11-27 20:35:46,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932767646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:46,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460506056] [2024-11-27 20:35:46,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:46,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:46,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:46,247 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:46,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:35:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:46,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:35:46,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:35:47,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:47,452 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:35:47,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460506056] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:47,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:35:47,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 6] total 17 [2024-11-27 20:35:47,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177357351] [2024-11-27 20:35:47,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:47,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:35:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:47,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:35:47,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:35:47,459 INFO L87 Difference]: Start difference. First operand 3449 states and 4768 transitions. Second operand has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:35:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:47,983 INFO L93 Difference]: Finished difference Result 6762 states and 9370 transitions. [2024-11-27 20:35:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:35:47,987 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 139 [2024-11-27 20:35:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:48,002 INFO L225 Difference]: With dead ends: 6762 [2024-11-27 20:35:48,002 INFO L226 Difference]: Without dead ends: 3511 [2024-11-27 20:35:48,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:35:48,010 INFO L435 NwaCegarLoop]: 610 mSDtfsCounter, 22 mSDsluCounter, 6069 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6679 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:48,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 6679 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:35:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2024-11-27 20:35:48,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3489. [2024-11-27 20:35:48,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3489 states, 3386 states have (on average 1.3892498523331365) internal successors, (4704), 3399 states have internal predecessors, (4704), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-27 20:35:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 4819 transitions. [2024-11-27 20:35:48,182 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 4819 transitions. Word has length 139 [2024-11-27 20:35:48,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:48,183 INFO L471 AbstractCegarLoop]: Abstraction has 3489 states and 4819 transitions. [2024-11-27 20:35:48,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.294117647058824) internal successors, (158), 17 states have internal predecessors, (158), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:35:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 4819 transitions. [2024-11-27 20:35:48,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-27 20:35:48,186 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:48,186 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:48,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:48,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:48,391 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:48,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:48,393 INFO L85 PathProgramCache]: Analyzing trace with hash 286305460, now seen corresponding path program 2 times [2024-11-27 20:35:48,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:48,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464266941] [2024-11-27 20:35:48,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:35:48,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:48,660 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:35:48,660 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:35:49,260 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 20:35:49,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:49,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464266941] [2024-11-27 20:35:49,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464266941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:49,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204917050] [2024-11-27 20:35:49,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:35:49,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:49,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:49,264 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:49,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:35:49,709 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:35:49,709 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:35:49,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:35:49,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:49,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 20:35:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-27 20:35:49,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:49,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204917050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:49,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:49,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-27 20:35:49,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292022343] [2024-11-27 20:35:49,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:49,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:35:49,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:49,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:35:49,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:35:49,742 INFO L87 Difference]: Start difference. First operand 3489 states and 4819 transitions. Second operand has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:35:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:49,822 INFO L93 Difference]: Finished difference Result 3489 states and 4819 transitions. [2024-11-27 20:35:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:35:49,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 143 [2024-11-27 20:35:49,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:49,834 INFO L225 Difference]: With dead ends: 3489 [2024-11-27 20:35:49,834 INFO L226 Difference]: Without dead ends: 3488 [2024-11-27 20:35:49,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:35:49,837 INFO L435 NwaCegarLoop]: 615 mSDtfsCounter, 1 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:49,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1228 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:35:49,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3488 states. [2024-11-27 20:35:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3488 to 3488. [2024-11-27 20:35:49,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3488 states, 3386 states have (on average 1.3874778499704665) internal successors, (4698), 3398 states have internal predecessors, (4698), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-27 20:35:50,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 4813 transitions. [2024-11-27 20:35:50,013 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 4813 transitions. Word has length 143 [2024-11-27 20:35:50,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:50,014 INFO L471 AbstractCegarLoop]: Abstraction has 3488 states and 4813 transitions. [2024-11-27 20:35:50,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.0) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:35:50,018 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 4813 transitions. [2024-11-27 20:35:50,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-27 20:35:50,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:50,021 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:50,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:50,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:50,222 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:50,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:50,223 INFO L85 PathProgramCache]: Analyzing trace with hash 285534773, now seen corresponding path program 1 times [2024-11-27 20:35:50,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:50,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192189761] [2024-11-27 20:35:50,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:50,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 20:35:51,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:51,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192189761] [2024-11-27 20:35:51,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192189761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:51,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991299446] [2024-11-27 20:35:51,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:51,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:51,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:51,092 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:51,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:35:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:51,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:35:51,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-27 20:35:52,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:52,479 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-27 20:35:52,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991299446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:52,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:35:52,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 9] total 27 [2024-11-27 20:35:52,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120867222] [2024-11-27 20:35:52,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:52,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 20:35:52,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:52,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 20:35:52,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=576, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:35:52,486 INFO L87 Difference]: Start difference. First operand 3488 states and 4813 transitions. Second operand has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:35:54,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:54,146 INFO L93 Difference]: Finished difference Result 6418 states and 8862 transitions. [2024-11-27 20:35:54,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:35:54,147 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2024-11-27 20:35:54,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:54,157 INFO L225 Difference]: With dead ends: 6418 [2024-11-27 20:35:54,158 INFO L226 Difference]: Without dead ends: 2955 [2024-11-27 20:35:54,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=380, Invalid=1512, Unknown=0, NotChecked=0, Total=1892 [2024-11-27 20:35:54,164 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 53 mSDsluCounter, 5670 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 6189 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:54,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 6189 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:35:54,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2955 states. [2024-11-27 20:35:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2955 to 2924. [2024-11-27 20:35:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2924 states, 2822 states have (on average 1.3717221828490431) internal successors, (3871), 2834 states have internal predecessors, (3871), 54 states have call successors, (54), 42 states have call predecessors, (54), 36 states have return successors, (61), 47 states have call predecessors, (61), 54 states have call successors, (61) [2024-11-27 20:35:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2924 states to 2924 states and 3986 transitions. [2024-11-27 20:35:54,303 INFO L78 Accepts]: Start accepts. Automaton has 2924 states and 3986 transitions. Word has length 144 [2024-11-27 20:35:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:54,304 INFO L471 AbstractCegarLoop]: Abstraction has 2924 states and 3986 transitions. [2024-11-27 20:35:54,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 6.296296296296297) internal successors, (170), 27 states have internal predecessors, (170), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:35:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2924 states and 3986 transitions. [2024-11-27 20:35:54,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-27 20:35:54,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:54,306 INFO L218 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:54,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:35:54,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:35:54,511 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:35:54,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1358168914, now seen corresponding path program 2 times [2024-11-27 20:35:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:54,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345618840] [2024-11-27 20:35:54,512 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:35:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:54,705 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:35:54,705 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:35:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 8 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-27 20:35:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345618840] [2024-11-27 20:35:55,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345618840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365774709] [2024-11-27 20:35:55,924 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:35:55,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:55,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:55,928 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:55,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:35:56,630 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:35:56,630 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:35:56,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:35:56,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:56,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:35:57,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-27 20:35:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-27 20:35:57,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:04,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365774709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:04,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:36:04,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 21 [2024-11-27 20:36:04,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713523222] [2024-11-27 20:36:04,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:36:04,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:36:04,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:04,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:36:04,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:36:04,837 INFO L87 Difference]: Start difference. First operand 2924 states and 3986 transitions. Second operand has 21 states, 21 states have (on average 11.952380952380953) internal successors, (251), 21 states have internal predecessors, (251), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 20:36:07,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:07,016 INFO L93 Difference]: Finished difference Result 7250 states and 9986 transitions. [2024-11-27 20:36:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-27 20:36:07,017 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 11.952380952380953) internal successors, (251), 21 states have internal predecessors, (251), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 153 [2024-11-27 20:36:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:07,034 INFO L225 Difference]: With dead ends: 7250 [2024-11-27 20:36:07,034 INFO L226 Difference]: Without dead ends: 4446 [2024-11-27 20:36:07,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 167 SyntacticMatches, 7 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=165, Invalid=1475, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:36:07,041 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 599 mSDsluCounter, 7994 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 8705 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:07,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 8705 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:36:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2024-11-27 20:36:07,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3515. [2024-11-27 20:36:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3515 states, 3402 states have (on average 1.3835978835978835) internal successors, (4707), 3417 states have internal predecessors, (4707), 60 states have call successors, (60), 47 states have call predecessors, (60), 41 states have return successors, (67), 50 states have call predecessors, (67), 60 states have call successors, (67) [2024-11-27 20:36:07,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3515 states to 3515 states and 4834 transitions. [2024-11-27 20:36:07,232 INFO L78 Accepts]: Start accepts. Automaton has 3515 states and 4834 transitions. Word has length 153 [2024-11-27 20:36:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:07,232 INFO L471 AbstractCegarLoop]: Abstraction has 3515 states and 4834 transitions. [2024-11-27 20:36:07,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 11.952380952380953) internal successors, (251), 21 states have internal predecessors, (251), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 20:36:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 3515 states and 4834 transitions. [2024-11-27 20:36:07,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-27 20:36:07,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:07,235 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:07,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 20:36:07,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:36:07,441 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:07,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash 969588794, now seen corresponding path program 1 times [2024-11-27 20:36:07,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:07,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342302240] [2024-11-27 20:36:07,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:07,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-27 20:36:08,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:08,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342302240] [2024-11-27 20:36:08,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342302240] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:08,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962182792] [2024-11-27 20:36:08,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:08,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:08,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:08,572 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:08,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:36:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:09,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:36:09,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 194 proven. 6 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-27 20:36:09,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:09,926 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-27 20:36:09,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962182792] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:36:09,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:36:09,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10] total 18 [2024-11-27 20:36:09,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373199637] [2024-11-27 20:36:09,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:36:09,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:36:09,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:09,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:36:09,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:36:09,929 INFO L87 Difference]: Start difference. First operand 3515 states and 4834 transitions. Second operand has 19 states, 18 states have (on average 10.555555555555555) internal successors, (190), 15 states have internal predecessors, (190), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-27 20:36:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:10,861 INFO L93 Difference]: Finished difference Result 9091 states and 12858 transitions. [2024-11-27 20:36:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:36:10,862 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 10.555555555555555) internal successors, (190), 15 states have internal predecessors, (190), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 172 [2024-11-27 20:36:10,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:10,887 INFO L225 Difference]: With dead ends: 9091 [2024-11-27 20:36:10,887 INFO L226 Difference]: Without dead ends: 7150 [2024-11-27 20:36:10,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 341 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=299, Invalid=693, Unknown=0, NotChecked=0, Total=992 [2024-11-27 20:36:10,892 INFO L435 NwaCegarLoop]: 1094 mSDtfsCounter, 3939 mSDsluCounter, 6790 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3941 SdHoareTripleChecker+Valid, 7884 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:10,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3941 Valid, 7884 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:36:10,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7150 states. [2024-11-27 20:36:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7150 to 4554. [2024-11-27 20:36:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4554 states, 4457 states have (on average 1.4119362800089748) internal successors, (6293), 4471 states have internal predecessors, (6293), 50 states have call successors, (50), 41 states have call predecessors, (50), 36 states have return successors, (51), 41 states have call predecessors, (51), 50 states have call successors, (51) [2024-11-27 20:36:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 6394 transitions. [2024-11-27 20:36:11,167 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 6394 transitions. Word has length 172 [2024-11-27 20:36:11,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:11,168 INFO L471 AbstractCegarLoop]: Abstraction has 4554 states and 6394 transitions. [2024-11-27 20:36:11,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 10.555555555555555) internal successors, (190), 15 states have internal predecessors, (190), 7 states have call successors, (21), 9 states have call predecessors, (21), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-27 20:36:11,168 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 6394 transitions. [2024-11-27 20:36:11,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-27 20:36:11,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:11,172 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:11,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:36:11,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:36:11,374 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:11,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash 2003034129, now seen corresponding path program 1 times [2024-11-27 20:36:11,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:11,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669933443] [2024-11-27 20:36:11,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:11,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:11,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:11,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669933443] [2024-11-27 20:36:11,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669933443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:11,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:11,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:36:11,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479095736] [2024-11-27 20:36:11,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:11,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:36:11,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:11,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:36:11,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:36:11,689 INFO L87 Difference]: Start difference. First operand 4554 states and 6394 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:11,818 INFO L93 Difference]: Finished difference Result 5718 states and 8055 transitions. [2024-11-27 20:36:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:36:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 221 [2024-11-27 20:36:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:11,828 INFO L225 Difference]: With dead ends: 5718 [2024-11-27 20:36:11,829 INFO L226 Difference]: Without dead ends: 2262 [2024-11-27 20:36:11,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:36:11,835 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 19 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:11,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1047 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:36:11,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2024-11-27 20:36:11,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2065. [2024-11-27 20:36:11,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2065 states, 1984 states have (on average 1.3346774193548387) internal successors, (2648), 1997 states have internal predecessors, (2648), 39 states have call successors, (39), 35 states have call predecessors, (39), 32 states have return successors, (40), 32 states have call predecessors, (40), 39 states have call successors, (40) [2024-11-27 20:36:11,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2065 states to 2065 states and 2727 transitions. [2024-11-27 20:36:11,951 INFO L78 Accepts]: Start accepts. Automaton has 2065 states and 2727 transitions. Word has length 221 [2024-11-27 20:36:11,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:11,952 INFO L471 AbstractCegarLoop]: Abstraction has 2065 states and 2727 transitions. [2024-11-27 20:36:11,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:11,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2065 states and 2727 transitions. [2024-11-27 20:36:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-27 20:36:11,955 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:11,955 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:11,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 20:36:11,956 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:11,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:11,956 INFO L85 PathProgramCache]: Analyzing trace with hash 2025643355, now seen corresponding path program 1 times [2024-11-27 20:36:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:11,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679934646] [2024-11-27 20:36:11,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:11,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:12,283 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:12,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:12,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679934646] [2024-11-27 20:36:12,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679934646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:12,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:12,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:36:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146138146] [2024-11-27 20:36:12,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:12,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:36:12,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:12,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:36:12,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:36:12,285 INFO L87 Difference]: Start difference. First operand 2065 states and 2727 transitions. Second operand has 3 states, 2 states have (on average 90.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:36:12,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:12,400 INFO L93 Difference]: Finished difference Result 2387 states and 3194 transitions. [2024-11-27 20:36:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:36:12,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 90.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 223 [2024-11-27 20:36:12,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:12,410 INFO L225 Difference]: With dead ends: 2387 [2024-11-27 20:36:12,410 INFO L226 Difference]: Without dead ends: 2385 [2024-11-27 20:36:12,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:36:12,415 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 306 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:12,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 818 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:36:12,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-27 20:36:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2355. [2024-11-27 20:36:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2275 states have (on average 1.3512087912087911) internal successors, (3074), 2287 states have internal predecessors, (3074), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3151 transitions. [2024-11-27 20:36:12,541 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3151 transitions. Word has length 223 [2024-11-27 20:36:12,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:12,542 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 3151 transitions. [2024-11-27 20:36:12,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 90.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:36:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3151 transitions. [2024-11-27 20:36:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-27 20:36:12,563 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:12,564 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:12,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 20:36:12,564 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:12,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:12,567 INFO L85 PathProgramCache]: Analyzing trace with hash -328064158, now seen corresponding path program 1 times [2024-11-27 20:36:12,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:12,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989840538] [2024-11-27 20:36:12,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:12,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:12,945 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:12,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989840538] [2024-11-27 20:36:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989840538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755025465] [2024-11-27 20:36:12,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:12,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:12,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:12,950 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:12,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:36:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:13,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:36:13,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:14,003 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-27 20:36:14,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:14,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755025465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:14,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:14,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-27 20:36:14,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758587074] [2024-11-27 20:36:14,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:14,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:36:14,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:14,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:36:14,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:14,006 INFO L87 Difference]: Start difference. First operand 2355 states and 3151 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:14,325 INFO L93 Difference]: Finished difference Result 3381 states and 4612 transitions. [2024-11-27 20:36:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:36:14,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 235 [2024-11-27 20:36:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:14,338 INFO L225 Difference]: With dead ends: 3381 [2024-11-27 20:36:14,338 INFO L226 Difference]: Without dead ends: 2475 [2024-11-27 20:36:14,341 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:14,342 INFO L435 NwaCegarLoop]: 514 mSDtfsCounter, 8 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:14,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1013 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:36:14,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-27 20:36:14,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2475. [2024-11-27 20:36:14,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2475 states, 2395 states have (on average 1.3336116910229645) internal successors, (3194), 2407 states have internal predecessors, (3194), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:14,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3271 transitions. [2024-11-27 20:36:14,530 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3271 transitions. Word has length 235 [2024-11-27 20:36:14,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:14,532 INFO L471 AbstractCegarLoop]: Abstraction has 2475 states and 3271 transitions. [2024-11-27 20:36:14,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3271 transitions. [2024-11-27 20:36:14,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-27 20:36:14,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:14,537 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:14,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:36:14,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:36:14,738 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:14,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:14,739 INFO L85 PathProgramCache]: Analyzing trace with hash 444188894, now seen corresponding path program 1 times [2024-11-27 20:36:14,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:14,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034006963] [2024-11-27 20:36:14,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:14,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:15,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:15,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034006963] [2024-11-27 20:36:15,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034006963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:15,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625155894] [2024-11-27 20:36:15,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:15,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:15,148 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:15,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:36:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:16,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:36:16,194 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:16,222 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-27 20:36:16,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:16,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625155894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:16,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:16,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2024-11-27 20:36:16,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615698573] [2024-11-27 20:36:16,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:16,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:36:16,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:16,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:36:16,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:36:16,226 INFO L87 Difference]: Start difference. First operand 2475 states and 3271 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:16,444 INFO L93 Difference]: Finished difference Result 3363 states and 4507 transitions. [2024-11-27 20:36:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:36:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 235 [2024-11-27 20:36:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:16,456 INFO L225 Difference]: With dead ends: 3363 [2024-11-27 20:36:16,456 INFO L226 Difference]: Without dead ends: 2391 [2024-11-27 20:36:16,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:16,459 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 106 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:16,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1424 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:36:16,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2024-11-27 20:36:16,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2391. [2024-11-27 20:36:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2391 states, 2311 states have (on average 1.327563825183903) internal successors, (3068), 2323 states have internal predecessors, (3068), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2391 states to 2391 states and 3145 transitions. [2024-11-27 20:36:16,596 INFO L78 Accepts]: Start accepts. Automaton has 2391 states and 3145 transitions. Word has length 235 [2024-11-27 20:36:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:16,597 INFO L471 AbstractCegarLoop]: Abstraction has 2391 states and 3145 transitions. [2024-11-27 20:36:16,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2391 states and 3145 transitions. [2024-11-27 20:36:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-27 20:36:16,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:16,601 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:16,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:36:16,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:16,804 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:16,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:16,805 INFO L85 PathProgramCache]: Analyzing trace with hash 9981292, now seen corresponding path program 1 times [2024-11-27 20:36:16,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:16,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123067720] [2024-11-27 20:36:16,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:16,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:16,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:17,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123067720] [2024-11-27 20:36:17,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123067720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233966801] [2024-11-27 20:36:17,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:17,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:17,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:17,238 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:17,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:36:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:18,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 1368 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:36:18,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:18,598 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:18,599 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:18,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233966801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:18,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:18,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-27 20:36:18,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342037479] [2024-11-27 20:36:18,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:18,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:36:18,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:18,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:36:18,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:18,601 INFO L87 Difference]: Start difference. First operand 2391 states and 3145 transitions. Second operand has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:18,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:18,756 INFO L93 Difference]: Finished difference Result 2392 states and 3145 transitions. [2024-11-27 20:36:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:36:18,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 235 [2024-11-27 20:36:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:18,767 INFO L225 Difference]: With dead ends: 2392 [2024-11-27 20:36:18,767 INFO L226 Difference]: Without dead ends: 2391 [2024-11-27 20:36:18,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:18,770 INFO L435 NwaCegarLoop]: 741 mSDtfsCounter, 545 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:18,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1188 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:36:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2024-11-27 20:36:18,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 2390. [2024-11-27 20:36:18,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 2311 states have (on average 1.3262656858502813) internal successors, (3065), 2322 states have internal predecessors, (3065), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 3142 transitions. [2024-11-27 20:36:18,957 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 3142 transitions. Word has length 235 [2024-11-27 20:36:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:18,958 INFO L471 AbstractCegarLoop]: Abstraction has 2390 states and 3142 transitions. [2024-11-27 20:36:18,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 3142 transitions. [2024-11-27 20:36:18,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-27 20:36:18,961 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:18,961 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:18,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:36:19,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:19,161 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:19,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:19,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1498324379, now seen corresponding path program 1 times [2024-11-27 20:36:19,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:19,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136022604] [2024-11-27 20:36:19,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 79 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-27 20:36:20,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:20,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136022604] [2024-11-27 20:36:20,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136022604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:20,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567501223] [2024-11-27 20:36:20,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:20,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:20,545 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:20,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:36:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:21,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 1480 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:36:21,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:21,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 20:36:21,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-27 20:36:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-27 20:36:21,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:36:21,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567501223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:21,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:36:21,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-27 20:36:21,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395093221] [2024-11-27 20:36:21,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:21,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:36:21,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:21,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:36:21,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:36:21,997 INFO L87 Difference]: Start difference. First operand 2390 states and 3142 transitions. Second operand has 5 states, 4 states have (on average 48.5) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:22,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:22,195 INFO L93 Difference]: Finished difference Result 2560 states and 3364 transitions. [2024-11-27 20:36:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:36:22,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 48.5) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 236 [2024-11-27 20:36:22,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:22,207 INFO L225 Difference]: With dead ends: 2560 [2024-11-27 20:36:22,207 INFO L226 Difference]: Without dead ends: 2559 [2024-11-27 20:36:22,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:36:22,209 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 393 mSDsluCounter, 1305 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:22,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 1813 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:36:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2024-11-27 20:36:22,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2389. [2024-11-27 20:36:22,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2311 states have (on average 1.324102120294245) internal successors, (3060), 2321 states have internal predecessors, (3060), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:22,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 3137 transitions. [2024-11-27 20:36:22,373 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 3137 transitions. Word has length 236 [2024-11-27 20:36:22,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:22,375 INFO L471 AbstractCegarLoop]: Abstraction has 2389 states and 3137 transitions. [2024-11-27 20:36:22,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 48.5) internal successors, (194), 5 states have internal predecessors, (194), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 3137 transitions. [2024-11-27 20:36:22,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-27 20:36:22,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:22,380 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:22,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 20:36:22,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-27 20:36:22,581 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:22,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:22,582 INFO L85 PathProgramCache]: Analyzing trace with hash 309421478, now seen corresponding path program 1 times [2024-11-27 20:36:22,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:22,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799411484] [2024-11-27 20:36:22,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:22,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:23,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:23,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799411484] [2024-11-27 20:36:23,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799411484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:23,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492163605] [2024-11-27 20:36:23,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:23,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:23,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:23,005 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:23,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:36:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:24,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:36:24,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:24,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:24,828 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-27 20:36:24,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492163605] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:36:24,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:36:24,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 3] total 6 [2024-11-27 20:36:24,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543580581] [2024-11-27 20:36:24,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:36:24,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:36:24,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:24,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:36:24,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:24,833 INFO L87 Difference]: Start difference. First operand 2389 states and 3137 transitions. Second operand has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 20:36:25,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:25,084 INFO L93 Difference]: Finished difference Result 4329 states and 5774 transitions. [2024-11-27 20:36:25,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:36:25,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 236 [2024-11-27 20:36:25,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:25,097 INFO L225 Difference]: With dead ends: 4329 [2024-11-27 20:36:25,097 INFO L226 Difference]: Without dead ends: 4328 [2024-11-27 20:36:25,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:25,100 INFO L435 NwaCegarLoop]: 524 mSDtfsCounter, 1714 mSDsluCounter, 1100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:25,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 1624 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:36:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2024-11-27 20:36:25,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 4162. [2024-11-27 20:36:25,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 4084 states have (on average 1.3508814887365328) internal successors, (5517), 4094 states have internal predecessors, (5517), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:25,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 5594 transitions. [2024-11-27 20:36:25,340 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 5594 transitions. Word has length 236 [2024-11-27 20:36:25,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:25,341 INFO L471 AbstractCegarLoop]: Abstraction has 4162 states and 5594 transitions. [2024-11-27 20:36:25,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-27 20:36:25,342 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 5594 transitions. [2024-11-27 20:36:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-27 20:36:25,346 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:25,346 INFO L218 NwaCegarLoop]: trace histogram [22, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:25,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-27 20:36:25,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-27 20:36:25,548 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:25,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:25,548 INFO L85 PathProgramCache]: Analyzing trace with hash 796585369, now seen corresponding path program 1 times [2024-11-27 20:36:25,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:25,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006335723] [2024-11-27 20:36:25,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:25,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:26,091 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-27 20:36:26,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:26,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006335723] [2024-11-27 20:36:26,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006335723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:36:26,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:36:26,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:36:26,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149559480] [2024-11-27 20:36:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:36:26,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:36:26,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:26,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:36:26,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:36:26,096 INFO L87 Difference]: Start difference. First operand 4162 states and 5594 transitions. Second operand has 5 states, 4 states have (on average 48.75) internal successors, (195), 5 states have internal predecessors, (195), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:26,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:26,456 INFO L93 Difference]: Finished difference Result 4662 states and 6242 transitions. [2024-11-27 20:36:26,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:36:26,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 48.75) internal successors, (195), 5 states have internal predecessors, (195), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 237 [2024-11-27 20:36:26,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:26,467 INFO L225 Difference]: With dead ends: 4662 [2024-11-27 20:36:26,468 INFO L226 Difference]: Without dead ends: 4661 [2024-11-27 20:36:26,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:36:26,470 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 391 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:26,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1791 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:36:26,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4661 states. [2024-11-27 20:36:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4661 to 4161. [2024-11-27 20:36:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4161 states, 4084 states have (on average 1.3496571988246817) internal successors, (5512), 4093 states have internal predecessors, (5512), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:26,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 5589 transitions. [2024-11-27 20:36:26,715 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 5589 transitions. Word has length 237 [2024-11-27 20:36:26,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:26,716 INFO L471 AbstractCegarLoop]: Abstraction has 4161 states and 5589 transitions. [2024-11-27 20:36:26,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 48.75) internal successors, (195), 5 states have internal predecessors, (195), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:36:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 5589 transitions. [2024-11-27 20:36:26,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-27 20:36:26,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:26,721 INFO L218 NwaCegarLoop]: trace histogram [22, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:26,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-27 20:36:26,721 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:26,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:26,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1550158914, now seen corresponding path program 1 times [2024-11-27 20:36:26,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:26,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972170901] [2024-11-27 20:36:26,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:26,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 68 proven. 215 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-27 20:36:29,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:29,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972170901] [2024-11-27 20:36:29,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972170901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:29,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198377040] [2024-11-27 20:36:29,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:29,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:29,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:29,950 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:29,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:36:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:31,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-27 20:36:31,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:31,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:36:32,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-27 20:36:32,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:36:32,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-27 20:36:33,638 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 59 proven. 37 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-27 20:36:33,638 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:38,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198377040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:38,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:36:38,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2024-11-27 20:36:38,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134565220] [2024-11-27 20:36:38,283 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:36:38,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-27 20:36:38,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:38,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-27 20:36:38,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=1490, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:36:38,286 INFO L87 Difference]: Start difference. First operand 4161 states and 5589 transitions. Second operand has 30 states, 30 states have (on average 11.3) internal successors, (339), 30 states have internal predecessors, (339), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 20:36:45,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:36:45,227 INFO L93 Difference]: Finished difference Result 9218 states and 12378 transitions. [2024-11-27 20:36:45,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-27 20:36:45,228 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.3) internal successors, (339), 30 states have internal predecessors, (339), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 245 [2024-11-27 20:36:45,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:36:45,237 INFO L225 Difference]: With dead ends: 9218 [2024-11-27 20:36:45,237 INFO L226 Difference]: Without dead ends: 5187 [2024-11-27 20:36:45,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 332 SyntacticMatches, 8 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=348, Invalid=3558, Unknown=0, NotChecked=0, Total=3906 [2024-11-27 20:36:45,242 INFO L435 NwaCegarLoop]: 667 mSDtfsCounter, 715 mSDsluCounter, 10607 mSDsCounter, 0 mSdLazyCounter, 3111 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 11274 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 3111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:36:45,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 11274 Invalid, 3128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 3111 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-27 20:36:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5187 states. [2024-11-27 20:36:45,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5187 to 4237. [2024-11-27 20:36:45,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4237 states, 4160 states have (on average 1.3454326923076922) internal successors, (5597), 4169 states have internal predecessors, (5597), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:36:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4237 states to 4237 states and 5674 transitions. [2024-11-27 20:36:45,402 INFO L78 Accepts]: Start accepts. Automaton has 4237 states and 5674 transitions. Word has length 245 [2024-11-27 20:36:45,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:36:45,403 INFO L471 AbstractCegarLoop]: Abstraction has 4237 states and 5674 transitions. [2024-11-27 20:36:45,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 11.3) internal successors, (339), 30 states have internal predecessors, (339), 4 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-27 20:36:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4237 states and 5674 transitions. [2024-11-27 20:36:45,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-27 20:36:45,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:36:45,407 INFO L218 NwaCegarLoop]: trace histogram [24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:36:45,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 20:36:45,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-27 20:36:45,608 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:36:45,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:36:45,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1729250036, now seen corresponding path program 1 times [2024-11-27 20:36:45,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:36:45,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097265545] [2024-11-27 20:36:45,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:45,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:36:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:48,544 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 71 proven. 252 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-27 20:36:48,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:36:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097265545] [2024-11-27 20:36:48,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097265545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:36:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673324850] [2024-11-27 20:36:48,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:36:48,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:36:48,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:36:48,546 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:36:48,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:36:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:36:50,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-27 20:36:50,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:36:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 253 proven. 78 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-27 20:36:51,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:36:53,176 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 71 proven. 252 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-27 20:36:53,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673324850] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:36:53,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:36:53,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 17] total 50 [2024-11-27 20:36:53,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656513535] [2024-11-27 20:36:53,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:36:53,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-27 20:36:53,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:36:53,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-27 20:36:53,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=492, Invalid=1958, Unknown=0, NotChecked=0, Total=2450 [2024-11-27 20:36:53,181 INFO L87 Difference]: Start difference. First operand 4237 states and 5674 transitions. Second operand has 50 states, 50 states have (on average 5.0) internal successors, (250), 50 states have internal predecessors, (250), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:37:07,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:37:07,513 INFO L93 Difference]: Finished difference Result 8478 states and 11421 transitions. [2024-11-27 20:37:07,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-27 20:37:07,514 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.0) internal successors, (250), 50 states have internal predecessors, (250), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 247 [2024-11-27 20:37:07,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:37:07,523 INFO L225 Difference]: With dead ends: 8478 [2024-11-27 20:37:07,523 INFO L226 Difference]: Without dead ends: 4360 [2024-11-27 20:37:07,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 921 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=1874, Invalid=6316, Unknown=0, NotChecked=0, Total=8190 [2024-11-27 20:37:07,530 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 69 mSDsluCounter, 10757 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 11272 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:37:07,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 11272 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:37:07,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2024-11-27 20:37:07,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 4295. [2024-11-27 20:37:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4295 states, 4218 states have (on average 1.3409198672356568) internal successors, (5656), 4227 states have internal predecessors, (5656), 38 states have call successors, (38), 35 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:37:07,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4295 states to 4295 states and 5733 transitions. [2024-11-27 20:37:07,769 INFO L78 Accepts]: Start accepts. Automaton has 4295 states and 5733 transitions. Word has length 247 [2024-11-27 20:37:07,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:37:07,770 INFO L471 AbstractCegarLoop]: Abstraction has 4295 states and 5733 transitions. [2024-11-27 20:37:07,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.0) internal successors, (250), 50 states have internal predecessors, (250), 3 states have call successors, (8), 2 states have call predecessors, (8), 7 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:37:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4295 states and 5733 transitions. [2024-11-27 20:37:07,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 20:37:07,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:37:07,773 INFO L218 NwaCegarLoop]: trace histogram [39, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:37:07,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:37:07,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 20:37:07,973 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:37:07,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:37:07,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1352426217, now seen corresponding path program 2 times [2024-11-27 20:37:07,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:37:07,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98720888] [2024-11-27 20:37:07,974 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:37:07,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:37:09,679 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:37:09,679 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:37:12,402 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 71 proven. 734 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-27 20:37:12,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:37:12,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98720888] [2024-11-27 20:37:12,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98720888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:37:12,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733584185] [2024-11-27 20:37:12,403 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:37:12,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:37:12,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:37:12,404 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:37:12,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:37:14,804 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:37:14,804 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:37:14,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 1790 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-27 20:37:14,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:37:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 72 proven. 735 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-27 20:37:16,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:37:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 454 proven. 91 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-27 20:37:18,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733584185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:37:18,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:37:18,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 24, 18] total 68 [2024-11-27 20:37:18,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367546516] [2024-11-27 20:37:18,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:37:18,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2024-11-27 20:37:18,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:37:18,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2024-11-27 20:37:18,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=3757, Unknown=0, NotChecked=0, Total=4556 [2024-11-27 20:37:18,724 INFO L87 Difference]: Start difference. First operand 4295 states and 5733 transitions. Second operand has 68 states, 68 states have (on average 3.8676470588235294) internal successors, (263), 68 states have internal predecessors, (263), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:38:02,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:02,985 INFO L93 Difference]: Finished difference Result 8708 states and 11760 transitions. [2024-11-27 20:38:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-27 20:38:02,986 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.8676470588235294) internal successors, (263), 68 states have internal predecessors, (263), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 262 [2024-11-27 20:38:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:02,997 INFO L225 Difference]: With dead ends: 8708 [2024-11-27 20:38:02,997 INFO L226 Difference]: Without dead ends: 4543 [2024-11-27 20:38:03,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4436 ImplicationChecksByTransitivity, 45.5s TimeCoverageRelationStatistics Valid=3402, Invalid=20159, Unknown=1, NotChecked=0, Total=23562 [2024-11-27 20:38:03,007 INFO L435 NwaCegarLoop]: 515 mSDtfsCounter, 55 mSDsluCounter, 11808 mSDsCounter, 0 mSdLazyCounter, 2696 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:03,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 12323 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2696 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-27 20:38:03,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2024-11-27 20:38:03,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 4413. [2024-11-27 20:38:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 4336 states have (on average 1.3443265682656826) internal successors, (5829), 4344 states have internal predecessors, (5829), 38 states have call successors, (38), 36 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:38:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 5906 transitions. [2024-11-27 20:38:03,313 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 5906 transitions. Word has length 262 [2024-11-27 20:38:03,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:03,313 INFO L471 AbstractCegarLoop]: Abstraction has 4413 states and 5906 transitions. [2024-11-27 20:38:03,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.8676470588235294) internal successors, (263), 68 states have internal predecessors, (263), 3 states have call successors, (8), 1 states have call predecessors, (8), 7 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:38:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 5906 transitions. [2024-11-27 20:38:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-27 20:38:03,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:03,317 INFO L218 NwaCegarLoop]: trace histogram [68, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:03,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-27 20:38:03,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 20:38:03,518 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:38:03,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1341035918, now seen corresponding path program 3 times [2024-11-27 20:38:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:03,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521824355] [2024-11-27 20:38:03,520 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:38:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:03,754 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:38:03,755 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:38:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2527 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 2439 trivial. 0 not checked. [2024-11-27 20:38:03,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:03,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521824355] [2024-11-27 20:38:03,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521824355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:38:03,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:38:03,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:38:03,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106796360] [2024-11-27 20:38:03,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:38:03,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:38:03,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:03,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:38:03,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:38:03,996 INFO L87 Difference]: Start difference. First operand 4413 states and 5906 transitions. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:38:04,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:04,805 INFO L93 Difference]: Finished difference Result 8782 states and 11773 transitions. [2024-11-27 20:38:04,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:38:04,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 291 [2024-11-27 20:38:04,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:04,814 INFO L225 Difference]: With dead ends: 8782 [2024-11-27 20:38:04,814 INFO L226 Difference]: Without dead ends: 4443 [2024-11-27 20:38:04,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:38:04,819 INFO L435 NwaCegarLoop]: 510 mSDtfsCounter, 13 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:04,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2710 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:38:04,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2024-11-27 20:38:05,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4413. [2024-11-27 20:38:05,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4413 states, 4336 states have (on average 1.3443265682656826) internal successors, (5829), 4344 states have internal predecessors, (5829), 38 states have call successors, (38), 36 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:38:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4413 states to 4413 states and 5906 transitions. [2024-11-27 20:38:05,142 INFO L78 Accepts]: Start accepts. Automaton has 4413 states and 5906 transitions. Word has length 291 [2024-11-27 20:38:05,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:05,142 INFO L471 AbstractCegarLoop]: Abstraction has 4413 states and 5906 transitions. [2024-11-27 20:38:05,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:38:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 4413 states and 5906 transitions. [2024-11-27 20:38:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-27 20:38:05,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:05,146 INFO L218 NwaCegarLoop]: trace histogram [68, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:05,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-27 20:38:05,146 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:38:05,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1716384982, now seen corresponding path program 1 times [2024-11-27 20:38:05,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:05,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348133099] [2024-11-27 20:38:05,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:05,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:05,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2527 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 2491 trivial. 0 not checked. [2024-11-27 20:38:05,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:05,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348133099] [2024-11-27 20:38:05,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348133099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:38:05,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:38:05,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:38:05,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381262592] [2024-11-27 20:38:05,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:38:05,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:38:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:05,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:38:05,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:38:05,643 INFO L87 Difference]: Start difference. First operand 4413 states and 5906 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:38:06,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:06,085 INFO L93 Difference]: Finished difference Result 8737 states and 11697 transitions. [2024-11-27 20:38:06,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:38:06,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 291 [2024-11-27 20:38:06,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:06,096 INFO L225 Difference]: With dead ends: 8737 [2024-11-27 20:38:06,096 INFO L226 Difference]: Without dead ends: 4356 [2024-11-27 20:38:06,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:38:06,102 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 9 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:06,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1493 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:38:06,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4356 states. [2024-11-27 20:38:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4356 to 4356. [2024-11-27 20:38:06,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4356 states, 4279 states have (on average 1.341201215237205) internal successors, (5739), 4287 states have internal predecessors, (5739), 38 states have call successors, (38), 36 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:38:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4356 states to 4356 states and 5816 transitions. [2024-11-27 20:38:06,664 INFO L78 Accepts]: Start accepts. Automaton has 4356 states and 5816 transitions. Word has length 291 [2024-11-27 20:38:06,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:06,664 INFO L471 AbstractCegarLoop]: Abstraction has 4356 states and 5816 transitions. [2024-11-27 20:38:06,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:38:06,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4356 states and 5816 transitions. [2024-11-27 20:38:06,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-27 20:38:06,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:06,668 INFO L218 NwaCegarLoop]: trace histogram [68, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:06,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-27 20:38:06,668 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:38:06,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1899186254, now seen corresponding path program 1 times [2024-11-27 20:38:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:06,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981456501] [2024-11-27 20:38:06,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 2473 trivial. 0 not checked. [2024-11-27 20:38:07,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:07,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981456501] [2024-11-27 20:38:07,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981456501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:38:07,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:38:07,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:38:07,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394259131] [2024-11-27 20:38:07,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:38:07,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:38:07,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:07,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:38:07,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:38:07,942 INFO L87 Difference]: Start difference. First operand 4356 states and 5816 transitions. Second operand has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:38:08,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:08,715 INFO L93 Difference]: Finished difference Result 8708 states and 11641 transitions. [2024-11-27 20:38:08,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:38:08,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 293 [2024-11-27 20:38:08,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:08,726 INFO L225 Difference]: With dead ends: 8708 [2024-11-27 20:38:08,726 INFO L226 Difference]: Without dead ends: 4416 [2024-11-27 20:38:08,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:38:08,731 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 16 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3629 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:08,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3629 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:38:08,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4416 states. [2024-11-27 20:38:09,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4416 to 4398. [2024-11-27 20:38:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4398 states, 4321 states have (on average 1.3406618838231892) internal successors, (5793), 4329 states have internal predecessors, (5793), 38 states have call successors, (38), 36 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:38:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4398 states to 4398 states and 5870 transitions. [2024-11-27 20:38:09,026 INFO L78 Accepts]: Start accepts. Automaton has 4398 states and 5870 transitions. Word has length 293 [2024-11-27 20:38:09,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:09,026 INFO L471 AbstractCegarLoop]: Abstraction has 4398 states and 5870 transitions. [2024-11-27 20:38:09,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.0) internal successors, (162), 9 states have internal predecessors, (162), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:38:09,026 INFO L276 IsEmpty]: Start isEmpty. Operand 4398 states and 5870 transitions. [2024-11-27 20:38:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-27 20:38:09,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:09,028 INFO L218 NwaCegarLoop]: trace histogram [68, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:09,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-27 20:38:09,028 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:38:09,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:09,028 INFO L85 PathProgramCache]: Analyzing trace with hash 696396238, now seen corresponding path program 1 times [2024-11-27 20:38:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:09,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980404549] [2024-11-27 20:38:09,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:09,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 72 proven. 1559 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2024-11-27 20:38:14,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:14,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980404549] [2024-11-27 20:38:14,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980404549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:38:14,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [122054018] [2024-11-27 20:38:14,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:14,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:14,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:38:14,248 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:38:14,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:38:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:16,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 2227 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 20:38:16,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:38:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2528 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 2473 trivial. 0 not checked. [2024-11-27 20:38:17,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:38:17,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [122054018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:38:17,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:38:17,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [32] total 38 [2024-11-27 20:38:17,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849036240] [2024-11-27 20:38:17,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:38:17,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:38:17,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:17,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:38:17,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1306, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 20:38:17,138 INFO L87 Difference]: Start difference. First operand 4398 states and 5870 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:38:17,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:17,791 INFO L93 Difference]: Finished difference Result 8785 states and 11740 transitions. [2024-11-27 20:38:17,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:38:17,792 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 293 [2024-11-27 20:38:17,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:17,802 INFO L225 Difference]: With dead ends: 8785 [2024-11-27 20:38:17,802 INFO L226 Difference]: Without dead ends: 4458 [2024-11-27 20:38:17,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=108, Invalid=1452, Unknown=0, NotChecked=0, Total=1560 [2024-11-27 20:38:17,808 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 32 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2747 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:17,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2747 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:38:17,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2024-11-27 20:38:18,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4428. [2024-11-27 20:38:18,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4428 states, 4351 states have (on average 1.33969202482188) internal successors, (5829), 4359 states have internal predecessors, (5829), 38 states have call successors, (38), 36 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:38:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4428 states to 4428 states and 5906 transitions. [2024-11-27 20:38:18,044 INFO L78 Accepts]: Start accepts. Automaton has 4428 states and 5906 transitions. Word has length 293 [2024-11-27 20:38:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:18,044 INFO L471 AbstractCegarLoop]: Abstraction has 4428 states and 5906 transitions. [2024-11-27 20:38:18,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 8 states have internal predecessors, (162), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:38:18,044 INFO L276 IsEmpty]: Start isEmpty. Operand 4428 states and 5906 transitions. [2024-11-27 20:38:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-27 20:38:18,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:18,046 INFO L218 NwaCegarLoop]: trace histogram [68, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:18,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-27 20:38:18,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:18,247 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:38:18,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:18,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1431913902, now seen corresponding path program 1 times [2024-11-27 20:38:18,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:18,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334162127] [2024-11-27 20:38:18,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:18,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:19,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2529 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 2471 trivial. 0 not checked. [2024-11-27 20:38:19,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:19,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334162127] [2024-11-27 20:38:19,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334162127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:38:19,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:38:19,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:38:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404518334] [2024-11-27 20:38:19,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:38:19,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:38:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:19,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:38:19,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:38:19,430 INFO L87 Difference]: Start difference. First operand 4428 states and 5906 transitions. Second operand has 10 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:38:20,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:20,215 INFO L93 Difference]: Finished difference Result 8839 states and 11812 transitions. [2024-11-27 20:38:20,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:38:20,215 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 295 [2024-11-27 20:38:20,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:20,223 INFO L225 Difference]: With dead ends: 8839 [2024-11-27 20:38:20,223 INFO L226 Difference]: Without dead ends: 4482 [2024-11-27 20:38:20,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:38:20,227 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 19 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 4062 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:20,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 4062 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:38:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4482 states. [2024-11-27 20:38:20,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4482 to 4446. [2024-11-27 20:38:20,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4446 states, 4369 states have (on average 1.3382925154497596) internal successors, (5847), 4377 states have internal predecessors, (5847), 38 states have call successors, (38), 36 states have call predecessors, (38), 32 states have return successors, (39), 32 states have call predecessors, (39), 38 states have call successors, (39) [2024-11-27 20:38:20,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4446 states to 4446 states and 5924 transitions. [2024-11-27 20:38:20,484 INFO L78 Accepts]: Start accepts. Automaton has 4446 states and 5924 transitions. Word has length 295 [2024-11-27 20:38:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:20,484 INFO L471 AbstractCegarLoop]: Abstraction has 4446 states and 5924 transitions. [2024-11-27 20:38:20,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.6) internal successors, (166), 10 states have internal predecessors, (166), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:38:20,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4446 states and 5924 transitions. [2024-11-27 20:38:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-27 20:38:20,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:20,486 INFO L218 NwaCegarLoop]: trace histogram [68, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:20,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-27 20:38:20,486 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:38:20,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash 855981174, now seen corresponding path program 1 times [2024-11-27 20:38:20,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:20,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487032942] [2024-11-27 20:38:20,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:20,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:23,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2529 backedges. 73 proven. 1559 refuted. 0 times theorem prover too weak. 897 trivial. 0 not checked. [2024-11-27 20:38:23,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:23,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487032942] [2024-11-27 20:38:23,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487032942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:38:23,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977245737] [2024-11-27 20:38:23,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:38:23,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:23,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:38:23,789 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:38:23,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:38:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:38:33,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 2229 conjuncts, 479 conjuncts are in the unsatisfiable core [2024-11-27 20:38:33,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:38:33,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-27 20:38:34,350 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-27 20:38:34,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-27 20:38:34,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-27 20:38:34,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-27 20:38:34,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-27 20:38:34,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-27 20:38:36,266 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-27 20:38:36,267 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-27 20:38:36,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-27 20:38:36,476 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-27 20:38:36,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1367 treesize of output 1233 [2024-11-27 20:38:36,514 INFO L349 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2024-11-27 20:38:36,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 598 treesize of output 490 [2024-11-27 20:38:36,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-27 20:38:36,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 8 [2024-11-27 20:38:36,592 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-27 20:38:36,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1095 treesize of output 1091 [2024-11-27 20:38:36,659 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-27 20:38:36,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1272 treesize of output 1234 [2024-11-27 20:38:36,681 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2024-11-27 20:38:36,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 701 treesize of output 1 [2024-11-27 20:38:36,712 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-27 20:38:36,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1599 treesize of output 1425 [2024-11-27 20:38:36,776 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2024-11-27 20:38:36,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 675 treesize of output 1 [2024-11-27 20:38:36,802 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-27 20:38:36,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1246 treesize of output 1214 [2024-11-27 20:38:36,832 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-27 20:38:36,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1349 treesize of output 1301 [2024-11-27 20:38:36,866 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-27 20:38:36,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1272 treesize of output 1234 [2024-11-27 20:38:36,889 INFO L349 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2024-11-27 20:38:36,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 701 treesize of output 1 [2024-11-27 20:38:36,921 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-27 20:38:36,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 1599 treesize of output 1425 [2024-11-27 20:38:37,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-27 20:38:37,455 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-27 20:38:37,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-27 20:38:37,750 INFO L349 Elim1Store]: treesize reduction 137, result has 9.9 percent of original size [2024-11-27 20:38:37,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 227 treesize of output 148 [2024-11-27 20:38:37,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:38:37,795 INFO L349 Elim1Store]: treesize reduction 80, result has 19.2 percent of original size [2024-11-27 20:38:37,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 64 [2024-11-27 20:38:37,828 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-27 20:38:37,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 73 [2024-11-27 20:38:37,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 20:38:37,845 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-27 20:38:37,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 26 [2024-11-27 20:42:20,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-27 20:42:20,936 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-27 20:42:20,936 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-27 20:42:20,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 20:42:21,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:21,139 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:192) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 52 more [2024-11-27 20:42:21,145 INFO L158 Benchmark]: Toolchain (without parser) took 432233.81ms. Allocated memory was 117.4MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 90.8MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 575.1MB. Max. memory is 16.1GB. [2024-11-27 20:42:21,145 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:42:21,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1107.58ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 48.8MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-27 20:42:21,145 INFO L158 Benchmark]: Boogie Procedure Inliner took 157.67ms. Allocated memory is still 117.4MB. Free memory was 48.8MB in the beginning and 39.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:42:21,145 INFO L158 Benchmark]: Boogie Preprocessor took 278.22ms. Allocated memory is still 117.4MB. Free memory was 39.9MB in the beginning and 70.5MB in the end (delta: -30.6MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-27 20:42:21,145 INFO L158 Benchmark]: RCFGBuilder took 2551.89ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.5MB in the beginning and 230.6MB in the end (delta: -160.1MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. [2024-11-27 20:42:21,146 INFO L158 Benchmark]: TraceAbstraction took 428130.11ms. Allocated memory was 352.3MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 230.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 476.9MB. Max. memory is 16.1GB. [2024-11-27 20:42:21,147 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1107.58ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 48.8MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 157.67ms. Allocated memory is still 117.4MB. Free memory was 48.8MB in the beginning and 39.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 278.22ms. Allocated memory is still 117.4MB. Free memory was 39.9MB in the beginning and 70.5MB in the end (delta: -30.6MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2551.89ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.5MB in the beginning and 230.6MB in the end (delta: -160.1MB). Peak memory consumption was 74.6MB. Max. memory is 16.1GB. * TraceAbstraction took 428130.11ms. Allocated memory was 352.3MB in the beginning and 2.0GB in the end (delta: 1.6GB). Free memory was 230.6MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 476.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:42:23,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:42:23,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-27 20:42:23,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:42:23,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:42:24,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:42:24,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:42:24,014 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:42:24,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:42:24,014 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:42:24,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:42:24,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:42:24,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:42:24,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:42:24,015 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:42:24,015 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:42:24,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:42:24,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:42:24,018 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:42:24,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:42:24,018 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:42:24,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:42:24,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:42:24,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:42:24,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:42:24,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:42:24,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:42:24,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:42:24,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:42:24,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:42:24,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:42:24,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:42:24,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:42:24,021 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2024-11-27 20:42:24,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:42:24,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:42:24,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:42:24,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:42:24,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:42:24,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2024-11-27 20:42:27,387 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/6b19367bd/e5c8a0623f8a4a00b9497914b1135fe5/FLAG53ea45b82 [2024-11-27 20:42:27,781 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:42:27,781 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2024-11-27 20:42:27,804 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/6b19367bd/e5c8a0623f8a4a00b9497914b1135fe5/FLAG53ea45b82 [2024-11-27 20:42:27,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/data/6b19367bd/e5c8a0623f8a4a00b9497914b1135fe5 [2024-11-27 20:42:27,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:42:27,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:42:27,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:42:27,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:42:27,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:42:27,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:42:27" (1/1) ... [2024-11-27 20:42:27,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a66acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:27, skipping insertion in model container [2024-11-27 20:42:27,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:42:27" (1/1) ... [2024-11-27 20:42:27,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:42:28,438 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,487 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,491 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,494 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,502 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,541 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,541 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,546 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,547 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,554 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,558 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,560 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,564 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,571 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:42:28,606 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-27 20:42:28,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:42:28,708 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,753 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,758 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,765 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,772 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,807 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,807 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,809 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,809 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,812 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,817 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,818 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,822 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,826 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-27 20:42:28,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:42:28,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:42:28,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:42:29,037 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:42:29,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29 WrapperNode [2024-11-27 20:42:29,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:42:29,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:42:29,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:42:29,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:42:29,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,100 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,220 INFO L138 Inliner]: procedures = 286, calls = 300, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1046 [2024-11-27 20:42:29,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:42:29,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:42:29,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:42:29,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:42:29,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,381 INFO L175 MemorySlicer]: Split 268 memory accesses to 4 slices as follows [2, 34, 12, 220]. 82 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 0, 10, 0]. The 54 writes are split as follows [0, 4, 1, 49]. [2024-11-27 20:42:29,381 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:42:29,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:42:29,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:42:29,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:42:29,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (1/1) ... [2024-11-27 20:42:29,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:42:29,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:29,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:42:29,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:42:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-27 20:42:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-27 20:42:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-27 20:42:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-27 20:42:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-27 20:42:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-27 20:42:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-27 20:42:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-27 20:42:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-27 20:42:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-27 20:42:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 20:42:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 20:42:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 20:42:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 20:42:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 20:42:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 20:42:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-27 20:42:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-27 20:42:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-27 20:42:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-27 20:42:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 20:42:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-27 20:42:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-27 20:42:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-27 20:42:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-27 20:42:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:42:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:42:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-27 20:42:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-27 20:42:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-27 20:42:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:42:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:42:29,843 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:42:29,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:42:35,971 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2024-11-27 20:42:35,971 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:42:35,994 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:42:35,997 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-27 20:42:35,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:42:35 BoogieIcfgContainer [2024-11-27 20:42:35,998 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:42:36,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:42:36,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:42:36,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:42:36,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:42:27" (1/3) ... [2024-11-27 20:42:36,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2925f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:42:36, skipping insertion in model container [2024-11-27 20:42:36,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:42:29" (2/3) ... [2024-11-27 20:42:36,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2925f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:42:36, skipping insertion in model container [2024-11-27 20:42:36,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:42:35" (3/3) ... [2024-11-27 20:42:36,009 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2024-11-27 20:42:36,025 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:42:36,026 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_SFH_test6-1.i that has 6 procedures, 265 locations, 1 initial locations, 36 loop locations, and 14 error locations. [2024-11-27 20:42:36,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:42:36,109 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;@69de128b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:42:36,109 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-27 20:42:36,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 228 states have (on average 1.6096491228070176) internal successors, (367), 245 states have internal predecessors, (367), 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) [2024-11-27 20:42:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:42:36,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:36,121 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:36,121 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:36,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:36,127 INFO L85 PathProgramCache]: Analyzing trace with hash -885637860, now seen corresponding path program 1 times [2024-11-27 20:42:36,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:36,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784460780] [2024-11-27 20:42:36,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:36,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:36,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:36,143 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:36,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:42:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:36,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:42:36,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:36,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:36,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:36,483 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:36,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784460780] [2024-11-27 20:42:36,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784460780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:36,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:36,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:42:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986713184] [2024-11-27 20:42:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:36,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:42:36,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:36,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:42:36,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:42:36,519 INFO L87 Difference]: Start difference. First operand has 265 states, 228 states have (on average 1.6096491228070176) internal successors, (367), 245 states have internal predecessors, (367), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:36,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:36,607 INFO L93 Difference]: Finished difference Result 517 states and 809 transitions. [2024-11-27 20:42:36,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:42:36,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:42:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:36,620 INFO L225 Difference]: With dead ends: 517 [2024-11-27 20:42:36,620 INFO L226 Difference]: Without dead ends: 240 [2024-11-27 20:42:36,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:42:36,631 INFO L435 NwaCegarLoop]: 319 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, 319 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:36,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:42:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-27 20:42:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-11-27 20:42:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 218 states have (on average 1.2798165137614679) internal successors, (279), 226 states have internal predecessors, (279), 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) [2024-11-27 20:42:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 299 transitions. [2024-11-27 20:42:36,705 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 299 transitions. Word has length 9 [2024-11-27 20:42:36,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:36,706 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 299 transitions. [2024-11-27 20:42:36,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 299 transitions. [2024-11-27 20:42:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-27 20:42:36,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:36,708 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:36,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:42:36,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:36,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:36,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:36,913 INFO L85 PathProgramCache]: Analyzing trace with hash -885635938, now seen corresponding path program 1 times [2024-11-27 20:42:36,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:36,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2034505866] [2024-11-27 20:42:36,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:36,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:36,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:36,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:36,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:42:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:37,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:42:37,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:37,270 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 43 treesize of output 10 [2024-11-27 20:42:37,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:42:37,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 32 [2024-11-27 20:42:37,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:37,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:37,562 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:37,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034505866] [2024-11-27 20:42:37,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034505866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:37,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:37,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:42:37,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588187344] [2024-11-27 20:42:37,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:37,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:42:37,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:37,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:42:37,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:42:37,568 INFO L87 Difference]: Start difference. First operand 240 states and 299 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:39,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:39,001 INFO L93 Difference]: Finished difference Result 556 states and 703 transitions. [2024-11-27 20:42:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:42:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-27 20:42:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:39,006 INFO L225 Difference]: With dead ends: 556 [2024-11-27 20:42:39,006 INFO L226 Difference]: Without dead ends: 446 [2024-11-27 20:42:39,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:42:39,008 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 242 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:39,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 1420 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:42:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-27 20:42:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 248. [2024-11-27 20:42:39,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 226 states have (on average 1.2699115044247788) internal successors, (287), 234 states have internal predecessors, (287), 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) [2024-11-27 20:42:39,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 307 transitions. [2024-11-27 20:42:39,044 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 307 transitions. Word has length 9 [2024-11-27 20:42:39,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:39,045 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 307 transitions. [2024-11-27 20:42:39,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:39,045 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 307 transitions. [2024-11-27 20:42:39,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 20:42:39,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:39,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:39,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:42:39,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:39,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:39,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:39,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1274311106, now seen corresponding path program 1 times [2024-11-27 20:42:39,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:39,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1215266146] [2024-11-27 20:42:39,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:39,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:39,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:39,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:39,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:42:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:39,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:42:39,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:39,644 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:39,644 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:39,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215266146] [2024-11-27 20:42:39,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215266146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:39,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:39,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:42:39,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899366338] [2024-11-27 20:42:39,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:39,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:42:39,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:39,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:42:39,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:42:39,646 INFO L87 Difference]: Start difference. First operand 248 states and 307 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:39,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:39,838 INFO L93 Difference]: Finished difference Result 506 states and 634 transitions. [2024-11-27 20:42:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:42:39,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 48 [2024-11-27 20:42:39,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:39,843 INFO L225 Difference]: With dead ends: 506 [2024-11-27 20:42:39,845 INFO L226 Difference]: Without dead ends: 268 [2024-11-27 20:42:39,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:42:39,849 INFO L435 NwaCegarLoop]: 279 mSDtfsCounter, 8 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:39,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 543 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:42:39,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-27 20:42:39,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-27 20:42:39,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 246 states have (on average 1.2479674796747968) internal successors, (307), 254 states have internal predecessors, (307), 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) [2024-11-27 20:42:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 327 transitions. [2024-11-27 20:42:39,881 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 327 transitions. Word has length 48 [2024-11-27 20:42:39,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:39,881 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 327 transitions. [2024-11-27 20:42:39,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:39,881 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 327 transitions. [2024-11-27 20:42:39,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 20:42:39,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:39,882 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:39,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:42:40,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:40,083 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:40,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:40,084 INFO L85 PathProgramCache]: Analyzing trace with hash 851609280, now seen corresponding path program 1 times [2024-11-27 20:42:40,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:40,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1938262950] [2024-11-27 20:42:40,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:40,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:40,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:40,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:40,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:42:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:40,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:42:40,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:40,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:40,452 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:40,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:40,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938262950] [2024-11-27 20:42:40,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938262950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:40,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:40,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:42:40,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603266073] [2024-11-27 20:42:40,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:40,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:42:40,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:40,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:42:40,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:42:40,455 INFO L87 Difference]: Start difference. First operand 268 states and 327 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:40,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:40,629 INFO L93 Difference]: Finished difference Result 508 states and 626 transitions. [2024-11-27 20:42:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:42:40,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 48 [2024-11-27 20:42:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:40,632 INFO L225 Difference]: With dead ends: 508 [2024-11-27 20:42:40,632 INFO L226 Difference]: Without dead ends: 250 [2024-11-27 20:42:40,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:42:40,634 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 32 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:40,634 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 781 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:42:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-27 20:42:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2024-11-27 20:42:40,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 228 states have (on average 1.219298245614035) internal successors, (278), 236 states have internal predecessors, (278), 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) [2024-11-27 20:42:40,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 298 transitions. [2024-11-27 20:42:40,647 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 298 transitions. Word has length 48 [2024-11-27 20:42:40,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:40,647 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 298 transitions. [2024-11-27 20:42:40,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:40,647 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 298 transitions. [2024-11-27 20:42:40,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 20:42:40,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:40,648 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:40,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:42:40,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:40,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:40,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash -746901170, now seen corresponding path program 1 times [2024-11-27 20:42:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246096761] [2024-11-27 20:42:40,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:40,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:40,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:40,852 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:40,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:42:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:41,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:42:41,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:41,444 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:41,444 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:41,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246096761] [2024-11-27 20:42:41,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246096761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:41,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:42:41,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23987721] [2024-11-27 20:42:41,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:41,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:42:41,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:41,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:42:41,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:42:41,448 INFO L87 Difference]: Start difference. First operand 250 states and 298 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:41,560 INFO L93 Difference]: Finished difference Result 429 states and 513 transitions. [2024-11-27 20:42:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:42:41,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 48 [2024-11-27 20:42:41,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:41,566 INFO L225 Difference]: With dead ends: 429 [2024-11-27 20:42:41,567 INFO L226 Difference]: Without dead ends: 427 [2024-11-27 20:42:41,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:42:41,568 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 162 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:41,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 841 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:42:41,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-27 20:42:41,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 421. [2024-11-27 20:42:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 396 states have (on average 1.2222222222222223) internal successors, (484), 405 states have internal predecessors, (484), 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) [2024-11-27 20:42:41,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 510 transitions. [2024-11-27 20:42:41,588 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 510 transitions. Word has length 48 [2024-11-27 20:42:41,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:41,589 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 510 transitions. [2024-11-27 20:42:41,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:41,589 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 510 transitions. [2024-11-27 20:42:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-27 20:42:41,590 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:41,590 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:41,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:42:41,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:41,791 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:41,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1968651611, now seen corresponding path program 1 times [2024-11-27 20:42:41,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:41,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [336112175] [2024-11-27 20:42:41,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:41,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:41,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:41,794 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:41,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:42:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:42,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:42:42,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:42,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:42,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:42,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336112175] [2024-11-27 20:42:42,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336112175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:42,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:42,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-27 20:42:42,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836094819] [2024-11-27 20:42:42,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:42,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:42:42,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:42,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:42:42,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:42:42,386 INFO L87 Difference]: Start difference. First operand 421 states and 510 transitions. Second operand has 3 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:42:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:42,429 INFO L93 Difference]: Finished difference Result 550 states and 666 transitions. [2024-11-27 20:42:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:42:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (2), 1 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 58 [2024-11-27 20:42:42,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:42,435 INFO L225 Difference]: With dead ends: 550 [2024-11-27 20:42:42,435 INFO L226 Difference]: Without dead ends: 549 [2024-11-27 20:42:42,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:42:42,438 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 180 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:42,440 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 567 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:42:42,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-27 20:42:42,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 543. [2024-11-27 20:42:42,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 510 states have (on average 1.2333333333333334) internal successors, (629), 520 states have internal predecessors, (629), 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) [2024-11-27 20:42:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 665 transitions. [2024-11-27 20:42:42,482 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 665 transitions. Word has length 58 [2024-11-27 20:42:42,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:42,482 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 665 transitions. [2024-11-27 20:42:42,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 20:42:42,483 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 665 transitions. [2024-11-27 20:42:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 20:42:42,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:42,484 INFO L218 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] [2024-11-27 20:42:42,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:42:42,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:42,689 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:42,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:42,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1103192686, now seen corresponding path program 1 times [2024-11-27 20:42:42,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:42,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934432374] [2024-11-27 20:42:42,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:42,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:42,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:42,693 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:42,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:42:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:43,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:42:43,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:43,237 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:43,238 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:43,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934432374] [2024-11-27 20:42:43,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934432374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:43,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:43,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:42:43,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595290103] [2024-11-27 20:42:43,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:43,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:42:43,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:43,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:42:43,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:42:43,240 INFO L87 Difference]: Start difference. First operand 543 states and 665 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:42:43,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:43,352 INFO L93 Difference]: Finished difference Result 787 states and 962 transitions. [2024-11-27 20:42:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:42:43,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 67 [2024-11-27 20:42:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:43,356 INFO L225 Difference]: With dead ends: 787 [2024-11-27 20:42:43,356 INFO L226 Difference]: Without dead ends: 547 [2024-11-27 20:42:43,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:42:43,357 INFO L435 NwaCegarLoop]: 283 mSDtfsCounter, 1 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:43,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1118 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:42:43,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-11-27 20:42:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2024-11-27 20:42:43,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 513 states have (on average 1.2339181286549707) internal successors, (633), 524 states have internal predecessors, (633), 18 states have call successors, (18), 9 states have call predecessors, (18), 8 states have return successors, (20), 15 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-27 20:42:43,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 671 transitions. [2024-11-27 20:42:43,385 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 671 transitions. Word has length 67 [2024-11-27 20:42:43,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:43,385 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 671 transitions. [2024-11-27 20:42:43,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 20:42:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 671 transitions. [2024-11-27 20:42:43,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 20:42:43,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:43,387 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:43,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:42:43,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:43,588 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:43,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:43,588 INFO L85 PathProgramCache]: Analyzing trace with hash 296143222, now seen corresponding path program 1 times [2024-11-27 20:42:43,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:43,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11420737] [2024-11-27 20:42:43,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:43,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:43,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:43,590 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:43,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:42:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:44,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:42:44,010 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:44,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:42:44,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:44,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:44,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11420737] [2024-11-27 20:42:44,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11420737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:44,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:44,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:42:44,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070304629] [2024-11-27 20:42:44,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:44,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:42:44,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:44,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:42:44,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:42:44,358 INFO L87 Difference]: Start difference. First operand 547 states and 671 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:45,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:45,088 INFO L93 Difference]: Finished difference Result 924 states and 1123 transitions. [2024-11-27 20:42:45,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:42:45,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-27 20:42:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:45,091 INFO L225 Difference]: With dead ends: 924 [2024-11-27 20:42:45,091 INFO L226 Difference]: Without dead ends: 387 [2024-11-27 20:42:45,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:42:45,093 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 94 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:45,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 590 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:42:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-27 20:42:45,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 383. [2024-11-27 20:42:45,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 355 states have (on average 1.208450704225352) internal successors, (429), 365 states have internal predecessors, (429), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 20:42:45,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 456 transitions. [2024-11-27 20:42:45,109 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 456 transitions. Word has length 64 [2024-11-27 20:42:45,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:45,109 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 456 transitions. [2024-11-27 20:42:45,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:42:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 456 transitions. [2024-11-27 20:42:45,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 20:42:45,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:45,111 INFO L218 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] [2024-11-27 20:42:45,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:42:45,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:45,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:45,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:45,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2094052783, now seen corresponding path program 1 times [2024-11-27 20:42:45,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:45,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147498856] [2024-11-27 20:42:45,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:45,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:45,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:45,318 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:45,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:42:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:45,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:42:45,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:42:46,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:46,040 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:46,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147498856] [2024-11-27 20:42:46,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147498856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:46,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:46,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:42:46,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797928359] [2024-11-27 20:42:46,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:46,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:42:46,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:46,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:42:46,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:42:46,042 INFO L87 Difference]: Start difference. First operand 383 states and 456 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:42:46,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:46,535 INFO L93 Difference]: Finished difference Result 709 states and 855 transitions. [2024-11-27 20:42:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:42:46,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 68 [2024-11-27 20:42:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:46,538 INFO L225 Difference]: With dead ends: 709 [2024-11-27 20:42:46,538 INFO L226 Difference]: Without dead ends: 386 [2024-11-27 20:42:46,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:42:46,540 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 29 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:46,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1273 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:42:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-27 20:42:46,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 383. [2024-11-27 20:42:46,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 355 states have (on average 1.2056338028169014) internal successors, (428), 364 states have internal predecessors, (428), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (14), 12 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-27 20:42:46,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 455 transitions. [2024-11-27 20:42:46,560 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 455 transitions. Word has length 68 [2024-11-27 20:42:46,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:46,560 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 455 transitions. [2024-11-27 20:42:46,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 20:42:46,560 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 455 transitions. [2024-11-27 20:42:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-27 20:42:46,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:46,561 INFO L218 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] [2024-11-27 20:42:46,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:42:46,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:46,762 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:46,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:46,762 INFO L85 PathProgramCache]: Analyzing trace with hash 489067158, now seen corresponding path program 1 times [2024-11-27 20:42:46,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:46,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701529713] [2024-11-27 20:42:46,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:46,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:46,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:46,764 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:42:47,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:47,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:42:47,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:47,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:42:47,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:47,320 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:47,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701529713] [2024-11-27 20:42:47,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701529713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:47,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:47,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:42:47,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654780907] [2024-11-27 20:42:47,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:47,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:42:47,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:47,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:42:47,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:42:47,323 INFO L87 Difference]: Start difference. First operand 383 states and 455 transitions. Second operand has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:42:47,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:47,472 INFO L93 Difference]: Finished difference Result 678 states and 823 transitions. [2024-11-27 20:42:47,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:42:47,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 73 [2024-11-27 20:42:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:47,477 INFO L225 Difference]: With dead ends: 678 [2024-11-27 20:42:47,477 INFO L226 Difference]: Without dead ends: 676 [2024-11-27 20:42:47,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:42:47,479 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 242 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:47,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 1336 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:42:47,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 676 states. [2024-11-27 20:42:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 676 to 669. [2024-11-27 20:42:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 630 states have (on average 1.2222222222222223) internal successors, (770), 640 states have internal predecessors, (770), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (29), 18 states have call predecessors, (29), 21 states have call successors, (29) [2024-11-27 20:42:47,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 820 transitions. [2024-11-27 20:42:47,516 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 820 transitions. Word has length 73 [2024-11-27 20:42:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:47,517 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 820 transitions. [2024-11-27 20:42:47,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 20:42:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 820 transitions. [2024-11-27 20:42:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 20:42:47,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:47,520 INFO L218 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] [2024-11-27 20:42:47,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:42:47,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:47,721 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:47,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1714647373, now seen corresponding path program 1 times [2024-11-27 20:42:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:47,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016647776] [2024-11-27 20:42:47,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:47,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:47,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:47,724 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:47,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:42:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:48,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:42:48,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:48,620 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:42:48,621 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:42:49,138 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 20:42:49,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:49,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016647776] [2024-11-27 20:42:49,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016647776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:42:49,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:42:49,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2024-11-27 20:42:49,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342843896] [2024-11-27 20:42:49,139 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:42:49,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:42:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:49,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:42:49,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:42:49,140 INFO L87 Difference]: Start difference. First operand 669 states and 820 transitions. Second operand has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-27 20:42:50,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:50,599 INFO L93 Difference]: Finished difference Result 1613 states and 1984 transitions. [2024-11-27 20:42:50,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:42:50,600 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 83 [2024-11-27 20:42:50,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:50,612 INFO L225 Difference]: With dead ends: 1613 [2024-11-27 20:42:50,613 INFO L226 Difference]: Without dead ends: 1603 [2024-11-27 20:42:50,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:42:50,615 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 779 mSDsluCounter, 1907 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:50,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 2163 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:42:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2024-11-27 20:42:50,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1589. [2024-11-27 20:42:50,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1501 states have (on average 1.2285143237841438) internal successors, (1844), 1515 states have internal predecessors, (1844), 52 states have call successors, (52), 28 states have call predecessors, (52), 28 states have return successors, (73), 45 states have call predecessors, (73), 52 states have call successors, (73) [2024-11-27 20:42:50,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 1969 transitions. [2024-11-27 20:42:50,701 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 1969 transitions. Word has length 83 [2024-11-27 20:42:50,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:50,703 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 1969 transitions. [2024-11-27 20:42:50,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.88888888888889) internal successors, (143), 10 states have internal predecessors, (143), 5 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-27 20:42:50,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 1969 transitions. [2024-11-27 20:42:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:42:50,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:50,705 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-27 20:42:50,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:42:50,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:50,910 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:50,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:50,911 INFO L85 PathProgramCache]: Analyzing trace with hash -486333475, now seen corresponding path program 1 times [2024-11-27 20:42:50,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:50,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105004784] [2024-11-27 20:42:50,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:50,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:50,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:50,914 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:50,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:42:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:51,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:42:51,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:51,989 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:42:51,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:42:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:42:53,219 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:53,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105004784] [2024-11-27 20:42:53,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105004784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:42:53,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:42:53,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 18 [2024-11-27 20:42:53,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941485973] [2024-11-27 20:42:53,219 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:42:53,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-27 20:42:53,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:53,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-27 20:42:53,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:42:53,221 INFO L87 Difference]: Start difference. First operand 1589 states and 1969 transitions. Second operand has 19 states, 18 states have (on average 9.5) internal successors, (171), 16 states have internal predecessors, (171), 8 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-27 20:42:57,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:57,088 INFO L93 Difference]: Finished difference Result 5825 states and 7296 transitions. [2024-11-27 20:42:57,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-27 20:42:57,089 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.5) internal successors, (171), 16 states have internal predecessors, (171), 8 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 8 states have call successors, (10) Word has length 104 [2024-11-27 20:42:57,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:57,106 INFO L225 Difference]: With dead ends: 5825 [2024-11-27 20:42:57,106 INFO L226 Difference]: Without dead ends: 4400 [2024-11-27 20:42:57,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=481, Invalid=1499, Unknown=0, NotChecked=0, Total=1980 [2024-11-27 20:42:57,110 INFO L435 NwaCegarLoop]: 757 mSDtfsCounter, 3435 mSDsluCounter, 7674 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3441 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 1079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:57,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3441 Valid, 8431 Invalid, 1079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:42:57,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2024-11-27 20:42:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 3232. [2024-11-27 20:42:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3232 states, 3093 states have (on average 1.2363401228580666) internal successors, (3824), 3116 states have internal predecessors, (3824), 87 states have call successors, (87), 42 states have call predecessors, (87), 44 states have return successors, (115), 73 states have call predecessors, (115), 87 states have call successors, (115) [2024-11-27 20:42:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3232 states to 3232 states and 4026 transitions. [2024-11-27 20:42:57,311 INFO L78 Accepts]: Start accepts. Automaton has 3232 states and 4026 transitions. Word has length 104 [2024-11-27 20:42:57,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:57,311 INFO L471 AbstractCegarLoop]: Abstraction has 3232 states and 4026 transitions. [2024-11-27 20:42:57,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.5) internal successors, (171), 16 states have internal predecessors, (171), 8 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (10), 6 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-27 20:42:57,312 INFO L276 IsEmpty]: Start isEmpty. Operand 3232 states and 4026 transitions. [2024-11-27 20:42:57,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-27 20:42:57,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:57,313 INFO L218 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] [2024-11-27 20:42:57,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:42:57,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:57,514 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:42:57,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash -187286588, now seen corresponding path program 1 times [2024-11-27 20:42:57,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:42:57,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299834164] [2024-11-27 20:42:57,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:42:57,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:57,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:57,519 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:57,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:42:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:42:58,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:42:58,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:58,131 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 43 treesize of output 10 [2024-11-27 20:42:58,838 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:42:58,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 14 [2024-11-27 20:42:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-27 20:42:58,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:42:58,901 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:42:58,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299834164] [2024-11-27 20:42:58,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299834164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:42:58,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:42:58,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:42:58,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437223214] [2024-11-27 20:42:58,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:42:58,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:42:58,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:42:58,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:42:58,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:42:58,903 INFO L87 Difference]: Start difference. First operand 3232 states and 4026 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:43:03,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:43:07,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:43:11,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:43:15,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:43:20,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-27 20:43:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:43:20,582 INFO L93 Difference]: Finished difference Result 4544 states and 5704 transitions. [2024-11-27 20:43:20,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:43:20,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 109 [2024-11-27 20:43:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:43:20,602 INFO L225 Difference]: With dead ends: 4544 [2024-11-27 20:43:20,602 INFO L226 Difference]: Without dead ends: 4543 [2024-11-27 20:43:20,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 7 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:43:20,605 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 171 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:43:20,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1029 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 112 Invalid, 5 Unknown, 0 Unchecked, 21.5s Time] [2024-11-27 20:43:20,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2024-11-27 20:43:20,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 3982. [2024-11-27 20:43:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3817 states have (on average 1.2462667015981137) internal successors, (4757), 3847 states have internal predecessors, (4757), 102 states have call successors, (102), 53 states have call predecessors, (102), 55 states have return successors, (130), 81 states have call predecessors, (130), 102 states have call successors, (130) [2024-11-27 20:43:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 4989 transitions. [2024-11-27 20:43:20,898 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 4989 transitions. Word has length 109 [2024-11-27 20:43:20,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:43:20,898 INFO L471 AbstractCegarLoop]: Abstraction has 3982 states and 4989 transitions. [2024-11-27 20:43:20,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:43:20,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 4989 transitions. [2024-11-27 20:43:20,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:43:20,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:43:20,900 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:43:20,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:43:21,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:43:21,101 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:43:21,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:43:21,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1476358020, now seen corresponding path program 1 times [2024-11-27 20:43:21,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:43:21,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882226087] [2024-11-27 20:43:21,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:43:21,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:43:21,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:43:21,103 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:43:21,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:43:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:43:21,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:43:21,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:43:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:43:21,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:43:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-27 20:43:22,022 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:43:22,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882226087] [2024-11-27 20:43:22,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882226087] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:43:22,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:43:22,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 20:43:22,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488500116] [2024-11-27 20:43:22,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:43:22,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:43:22,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:43:22,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:43:22,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:43:22,024 INFO L87 Difference]: Start difference. First operand 3982 states and 4989 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:43:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:43:22,418 INFO L93 Difference]: Finished difference Result 8025 states and 10121 transitions. [2024-11-27 20:43:22,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:43:22,419 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 116 [2024-11-27 20:43:22,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:43:22,429 INFO L225 Difference]: With dead ends: 8025 [2024-11-27 20:43:22,429 INFO L226 Difference]: Without dead ends: 4108 [2024-11-27 20:43:22,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:43:22,435 INFO L435 NwaCegarLoop]: 282 mSDtfsCounter, 16 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:43:22,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1127 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:43:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2024-11-27 20:43:22,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 4073. [2024-11-27 20:43:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4073 states, 3902 states have (on average 1.2532034853921066) internal successors, (4890), 3929 states have internal predecessors, (4890), 102 states have call successors, (102), 62 states have call predecessors, (102), 61 states have return successors, (138), 81 states have call predecessors, (138), 102 states have call successors, (138) [2024-11-27 20:43:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 5130 transitions. [2024-11-27 20:43:22,698 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 5130 transitions. Word has length 116 [2024-11-27 20:43:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:43:22,698 INFO L471 AbstractCegarLoop]: Abstraction has 4073 states and 5130 transitions. [2024-11-27 20:43:22,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 10 states have internal predecessors, (108), 1 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:43:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 5130 transitions. [2024-11-27 20:43:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:43:22,700 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:43:22,700 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:43:22,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:43:22,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:43:22,901 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:43:22,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:43:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1670194402, now seen corresponding path program 2 times [2024-11-27 20:43:22,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:43:22,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768752202] [2024-11-27 20:43:22,902 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:43:22,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:43:22,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:43:22,904 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:43:22,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:43:23,594 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:43:23,594 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:43:23,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:43:23,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:43:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 20:43:23,770 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:43:24,085 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:43:24,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:43:24,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768752202] [2024-11-27 20:43:24,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768752202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:43:24,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:43:24,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-27 20:43:24,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97392529] [2024-11-27 20:43:24,086 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:43:24,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:43:24,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 20:43:24,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:43:24,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:43:24,087 INFO L87 Difference]: Start difference. First operand 4073 states and 5130 transitions. Second operand has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:43:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:43:24,946 INFO L93 Difference]: Finished difference Result 8158 states and 10317 transitions. [2024-11-27 20:43:24,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:43:24,947 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 120 [2024-11-27 20:43:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:43:24,965 INFO L225 Difference]: With dead ends: 8158 [2024-11-27 20:43:24,965 INFO L226 Difference]: Without dead ends: 4130 [2024-11-27 20:43:24,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:43:24,973 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 14 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1958 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:43:24,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1958 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:43:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4130 states. [2024-11-27 20:43:25,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4130 to 4107. [2024-11-27 20:43:25,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4107 states, 3936 states have (on average 1.2548272357723578) internal successors, (4939), 3963 states have internal predecessors, (4939), 102 states have call successors, (102), 62 states have call predecessors, (102), 61 states have return successors, (129), 81 states have call predecessors, (129), 102 states have call successors, (129) [2024-11-27 20:43:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5170 transitions. [2024-11-27 20:43:25,238 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5170 transitions. Word has length 120 [2024-11-27 20:43:25,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:43:25,239 INFO L471 AbstractCegarLoop]: Abstraction has 4107 states and 5170 transitions. [2024-11-27 20:43:25,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:43:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5170 transitions. [2024-11-27 20:43:25,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 20:43:25,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:43:25,241 INFO L218 NwaCegarLoop]: trace histogram [10, 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] [2024-11-27 20:43:25,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:43:25,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:43:25,441 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-27 20:43:25,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:43:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1615995170, now seen corresponding path program 3 times [2024-11-27 20:43:25,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 20:43:25,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716438774] [2024-11-27 20:43:25,443 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:43:25,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:43:25,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:43:25,445 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:43:25,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:43:26,067 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:43:26,068 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:43:26,083 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:43:26,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:43:26,106 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 43 treesize of output 10 [2024-11-27 20:43:28,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:43:28,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 167 treesize of output 66 [2024-11-27 20:43:28,290 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 20:43:28,290 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 58 [2024-11-27 20:43:28,360 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-27 20:43:28,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:43:47,725 WARN L873 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2870 (_ BitVec 8))) (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) (let ((.cse1 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_#t~post172#1|))) (concat (concat (concat ((_ extract 31 24) .cse1) ((_ extract 23 16) .cse1)) v_ArrVal_2870) ((_ extract 7 0) .cse1)))))) (bvmul .cse0 .cse0)))) is different from true [2024-11-27 20:43:56,258 WARN L873 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2870 (_ BitVec 8))) (bvsle (_ bv9223372034707292160 63) (let ((.cse0 ((_ sign_extend 31) (let ((.cse1 (bvadd (_ bv1 32) (let ((.cse2 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#i~0#1.base|))) (concat (concat (concat (select .cse2 (bvadd |c_ULTIMATE.start_main_~#i~0#1.offset| (_ bv3 32))) (select .cse2 (bvadd |c_ULTIMATE.start_main_~#i~0#1.offset| (_ bv2 32)))) (select .cse2 (bvadd |c_ULTIMATE.start_main_~#i~0#1.offset| (_ bv1 32)))) (select .cse2 |c_ULTIMATE.start_main_~#i~0#1.offset|)))))) (concat (concat (concat ((_ extract 31 24) .cse1) ((_ extract 23 16) .cse1)) v_ArrVal_2870) ((_ extract 7 0) .cse1)))))) (bvmul .cse0 .cse0)))) is different from true [2024-11-27 20:45:01,450 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 20:45:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716438774] [2024-11-27 20:45:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716438774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:45:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1029285623] [2024-11-27 20:45:01,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:45:01,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 20:45:01,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 20:45:01,460 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 20:45:01,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6054c0d-8baf-42f7-bc23-7bb622d98a5a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process