./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:19:45,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:19:45,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-12-02 10:19:45,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:19:45,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:19:45,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:19:45,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:19:45,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:19:45,699 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:19:45,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:19:45,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:19:45,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:19:45,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:19:45,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:19:45,700 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:19:45,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:19:45,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:19:45,700 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:19:45,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:19:45,701 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:19:45,701 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:19:45,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:19:45,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:19:45,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:19:45,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:19:45,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:19:45,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:19:45,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:19:45,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:19:45,703 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_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1 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 valid-memcleanup) ) 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 -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2024-12-02 10:19:45,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:19:45,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:19:45,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:19:45,924 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:19:45,925 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:19:45,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2024-12-02 10:19:48,603 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/data/9e1be8b0b/006cd089484a441295f1de00e51241f6/FLAGe36c9c819 [2024-12-02 10:19:48,848 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:19:48,849 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2024-12-02 10:19:48,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/data/9e1be8b0b/006cd089484a441295f1de00e51241f6/FLAGe36c9c819 [2024-12-02 10:19:48,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/data/9e1be8b0b/006cd089484a441295f1de00e51241f6 [2024-12-02 10:19:48,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:19:48,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:19:48,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:19:48,882 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:19:48,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:19:48,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:19:48" (1/1) ... [2024-12-02 10:19:48,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41509261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:48, skipping insertion in model container [2024-12-02 10:19:48,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:19:48" (1/1) ... [2024-12-02 10:19:48,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:19:49,255 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,284 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,289 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,292 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,299 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,328 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,331 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,333 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,339 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,349 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-12-02 10:19:49,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:19:49,367 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:19:49,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:19:49,482 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:19:49,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49 WrapperNode [2024-12-02 10:19:49,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:19:49,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:19:49,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:19:49,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:19:49,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,565 INFO L138 Inliner]: procedures = 176, calls = 326, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1517 [2024-12-02 10:19:49,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:19:49,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:19:49,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:19:49,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:19:49,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,655 INFO L175 MemorySlicer]: Split 309 memory accesses to 2 slices as follows [2, 307]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 82 writes are split as follows [0, 82]. [2024-12-02 10:19:49,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,689 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:19:49,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:19:49,718 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:19:49,718 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:19:49,719 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (1/1) ... [2024-12-02 10:19:49,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:19:49,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:19:49,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:19:49,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:19:49,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 10:19:49,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 10:19:49,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 10:19:49,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 10:19:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:19:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:19:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:19:49,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:19:49,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:19:49,952 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:19:49,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:19:51,458 INFO L? ?]: Removed 379 outVars from TransFormulas that were not future-live. [2024-12-02 10:19:51,458 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:19:51,476 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:19:51,477 INFO L312 CfgBuilder]: Removed 34 assume(true) statements. [2024-12-02 10:19:51,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:19:51 BoogieIcfgContainer [2024-12-02 10:19:51,477 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:19:51,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:19:51,479 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:19:51,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:19:51,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:19:48" (1/3) ... [2024-12-02 10:19:51,484 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f7366f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:19:51, skipping insertion in model container [2024-12-02 10:19:51,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:19:49" (2/3) ... [2024-12-02 10:19:51,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f7366f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:19:51, skipping insertion in model container [2024-12-02 10:19:51,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:19:51" (3/3) ... [2024-12-02 10:19:51,486 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-1.i [2024-12-02 10:19:51,501 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:19:51,502 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_JEN_nondet_test4-1.i that has 3 procedures, 418 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2024-12-02 10:19:51,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:19:51,559 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=None, 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;@33a73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:19:51,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 10:19:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 414 states, 404 states have (on average 1.603960396039604) internal successors, (648), 406 states have internal predecessors, (648), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:19:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-02 10:19:51,569 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:51,570 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-12-02 10:19:51,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:51,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1419695, now seen corresponding path program 1 times [2024-12-02 10:19:51,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:51,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925896000] [2024-12-02 10:19:51,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:51,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:51,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:19:51,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:51,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925896000] [2024-12-02 10:19:51,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925896000] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:51,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:51,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:19:51,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334581053] [2024-12-02 10:19:51,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:51,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:19:51,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:51,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:19:51,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:19:51,756 INFO L87 Difference]: Start difference. First operand has 414 states, 404 states have (on average 1.603960396039604) internal successors, (648), 406 states have internal predecessors, (648), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-12-02 10:19:52,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:52,780 INFO L93 Difference]: Finished difference Result 427 states and 607 transitions. [2024-12-02 10:19:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:19:52,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-12-02 10:19:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:52,792 INFO L225 Difference]: With dead ends: 427 [2024-12-02 10:19:52,792 INFO L226 Difference]: Without dead ends: 423 [2024-12-02 10:19:52,793 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 [2024-12-02 10:19:52,796 INFO L435 NwaCegarLoop]: 588 mSDtfsCounter, 16 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:52,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1163 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:19:52,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-12-02 10:19:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2024-12-02 10:19:52,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 410 states have (on average 1.4292682926829268) internal successors, (586), 411 states have internal predecessors, (586), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 10:19:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 598 transitions. [2024-12-02 10:19:52,846 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 598 transitions. Word has length 4 [2024-12-02 10:19:52,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:52,846 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 598 transitions. [2024-12-02 10:19:52,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-12-02 10:19:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 598 transitions. [2024-12-02 10:19:52,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 10:19:52,847 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:52,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:52,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:19:52,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:52,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:52,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1586775624, now seen corresponding path program 1 times [2024-12-02 10:19:52,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:52,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825037560] [2024-12-02 10:19:52,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:52,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:52,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:19:52,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:52,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825037560] [2024-12-02 10:19:52,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825037560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:52,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:52,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:19:52,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517065344] [2024-12-02 10:19:52,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:52,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:19:52,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:52,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:19:52,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:19:52,972 INFO L87 Difference]: Start difference. First operand 419 states and 598 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-12-02 10:19:53,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:53,328 INFO L93 Difference]: Finished difference Result 738 states and 1067 transitions. [2024-12-02 10:19:53,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:19:53,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2024-12-02 10:19:53,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:53,332 INFO L225 Difference]: With dead ends: 738 [2024-12-02 10:19:53,332 INFO L226 Difference]: Without dead ends: 736 [2024-12-02 10:19:53,333 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:19:53,333 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 471 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:53,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1683 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:19:53,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2024-12-02 10:19:53,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2024-12-02 10:19:53,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 724 states have (on average 1.4461325966850829) internal successors, (1047), 725 states have internal predecessors, (1047), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:19:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1065 transitions. [2024-12-02 10:19:53,365 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1065 transitions. Word has length 12 [2024-12-02 10:19:53,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:53,365 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1065 transitions. [2024-12-02 10:19:53,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-12-02 10:19:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1065 transitions. [2024-12-02 10:19:53,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 10:19:53,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:53,371 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:53,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:19:53,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:53,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash -965248116, now seen corresponding path program 1 times [2024-12-02 10:19:53,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:53,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580511880] [2024-12-02 10:19:53,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:53,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 10:19:53,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:53,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580511880] [2024-12-02 10:19:53,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580511880] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:53,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:53,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:19:53,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994467089] [2024-12-02 10:19:53,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:53,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:19:53,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:53,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:19:53,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:19:53,877 INFO L87 Difference]: Start difference. First operand 736 states and 1065 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:19:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:53,976 INFO L93 Difference]: Finished difference Result 742 states and 1057 transitions. [2024-12-02 10:19:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:19:53,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2024-12-02 10:19:53,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:53,980 INFO L225 Difference]: With dead ends: 742 [2024-12-02 10:19:53,980 INFO L226 Difference]: Without dead ends: 742 [2024-12-02 10:19:53,980 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 [2024-12-02 10:19:53,981 INFO L435 NwaCegarLoop]: 559 mSDtfsCounter, 106 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1583 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 [2024-12-02 10:19:53,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1583 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:19:53,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-12-02 10:19:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 736. [2024-12-02 10:19:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 724 states have (on average 1.4267955801104972) internal successors, (1033), 725 states have internal predecessors, (1033), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:19:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1051 transitions. [2024-12-02 10:19:54,011 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1051 transitions. Word has length 170 [2024-12-02 10:19:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:54,012 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1051 transitions. [2024-12-02 10:19:54,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:19:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1051 transitions. [2024-12-02 10:19:54,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 10:19:54,015 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:54,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:54,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:19:54,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:54,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:54,017 INFO L85 PathProgramCache]: Analyzing trace with hash -2084272256, now seen corresponding path program 1 times [2024-12-02 10:19:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:54,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067003683] [2024-12-02 10:19:54,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 10:19:54,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067003683] [2024-12-02 10:19:54,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067003683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:54,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:54,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:19:54,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706550723] [2024-12-02 10:19:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:19:54,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:54,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:19:54,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:19:54,328 INFO L87 Difference]: Start difference. First operand 736 states and 1051 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:19:54,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:54,375 INFO L93 Difference]: Finished difference Result 734 states and 1048 transitions. [2024-12-02 10:19:54,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:19:54,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2024-12-02 10:19:54,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:54,380 INFO L225 Difference]: With dead ends: 734 [2024-12-02 10:19:54,381 INFO L226 Difference]: Without dead ends: 734 [2024-12-02 10:19:54,381 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 [2024-12-02 10:19:54,381 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 135 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:54,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1150 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:19:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2024-12-02 10:19:54,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2024-12-02 10:19:54,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 722 states have (on average 1.4265927977839334) internal successors, (1030), 723 states have internal predecessors, (1030), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:19:54,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1048 transitions. [2024-12-02 10:19:54,402 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1048 transitions. Word has length 170 [2024-12-02 10:19:54,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:54,403 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 1048 transitions. [2024-12-02 10:19:54,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 10:19:54,403 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1048 transitions. [2024-12-02 10:19:54,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 10:19:54,406 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:54,406 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:54,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:19:54,406 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:54,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:54,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1566918387, now seen corresponding path program 1 times [2024-12-02 10:19:54,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:54,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234171049] [2024-12-02 10:19:54,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:54,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:19:54,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:54,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234171049] [2024-12-02 10:19:54,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234171049] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:54,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:54,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 10:19:54,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682408586] [2024-12-02 10:19:54,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:54,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:19:54,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:54,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:19:54,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:19:54,895 INFO L87 Difference]: Start difference. First operand 734 states and 1048 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:19:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:54,979 INFO L93 Difference]: Finished difference Result 648 states and 892 transitions. [2024-12-02 10:19:54,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:19:54,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185 [2024-12-02 10:19:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:54,983 INFO L225 Difference]: With dead ends: 648 [2024-12-02 10:19:54,983 INFO L226 Difference]: Without dead ends: 648 [2024-12-02 10:19:54,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:19:54,984 INFO L435 NwaCegarLoop]: 477 mSDtfsCounter, 30 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:54,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1412 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:19:54,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2024-12-02 10:19:54,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2024-12-02 10:19:54,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 636 states have (on average 1.3742138364779874) internal successors, (874), 637 states have internal predecessors, (874), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:19:55,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 892 transitions. [2024-12-02 10:19:55,001 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 892 transitions. Word has length 185 [2024-12-02 10:19:55,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:55,002 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 892 transitions. [2024-12-02 10:19:55,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:19:55,002 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 892 transitions. [2024-12-02 10:19:55,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 10:19:55,005 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:55,005 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:55,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:19:55,005 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:55,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:55,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1245413095, now seen corresponding path program 1 times [2024-12-02 10:19:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:55,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309778103] [2024-12-02 10:19:55,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:19:55,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:55,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309778103] [2024-12-02 10:19:55,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309778103] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:55,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:19:55,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:19:55,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867169213] [2024-12-02 10:19:55,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:55,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:19:55,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:55,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:19:55,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:19:55,420 INFO L87 Difference]: Start difference. First operand 648 states and 892 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-12-02 10:19:56,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:19:56,468 INFO L93 Difference]: Finished difference Result 715 states and 978 transitions. [2024-12-02 10:19:56,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:19:56,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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 185 [2024-12-02 10:19:56,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:19:56,471 INFO L225 Difference]: With dead ends: 715 [2024-12-02 10:19:56,472 INFO L226 Difference]: Without dead ends: 715 [2024-12-02 10:19:56,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:19:56,472 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 845 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1957 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:19:56,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1957 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 10:19:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-12-02 10:19:56,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 649. [2024-12-02 10:19:56,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 637 states have (on average 1.3720565149136579) internal successors, (874), 638 states have internal predecessors, (874), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:19:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 892 transitions. [2024-12-02 10:19:56,492 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 892 transitions. Word has length 185 [2024-12-02 10:19:56,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:19:56,492 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 892 transitions. [2024-12-02 10:19:56,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-12-02 10:19:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 892 transitions. [2024-12-02 10:19:56,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 10:19:56,495 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:19:56,495 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:19:56,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:19:56,495 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:19:56,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:19:56,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1199222468, now seen corresponding path program 1 times [2024-12-02 10:19:56,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:19:56,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289771786] [2024-12-02 10:19:56,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:56,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:19:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:57,611 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:19:57,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:19:57,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289771786] [2024-12-02 10:19:57,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289771786] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:19:57,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761780171] [2024-12-02 10:19:57,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:19:57,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:19:57,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:19:57,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:19:57,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:19:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:19:58,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-02 10:19:58,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:19:58,234 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 16 treesize of output 17 [2024-12-02 10:19:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:19:59,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:19:59,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761780171] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:19:59,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:19:59,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [4] total 13 [2024-12-02 10:19:59,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159409050] [2024-12-02 10:19:59,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:19:59,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 10:19:59,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:19:59,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 10:19:59,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-12-02 10:19:59,761 INFO L87 Difference]: Start difference. First operand 649 states and 892 transitions. Second operand has 11 states, 11 states have (on average 15.636363636363637) internal successors, (172), 11 states have internal predecessors, (172), 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) [2024-12-02 10:20:02,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:02,414 INFO L93 Difference]: Finished difference Result 754 states and 1028 transitions. [2024-12-02 10:20:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:20:02,415 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.636363636363637) internal successors, (172), 11 states have internal predecessors, (172), 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 189 [2024-12-02 10:20:02,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:02,418 INFO L225 Difference]: With dead ends: 754 [2024-12-02 10:20:02,418 INFO L226 Difference]: Without dead ends: 754 [2024-12-02 10:20:02,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2024-12-02 10:20:02,419 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 738 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:02,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 2669 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 10:20:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-12-02 10:20:02,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 675. [2024-12-02 10:20:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 663 states have (on average 1.3650075414781297) internal successors, (905), 664 states have internal predecessors, (905), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:20:02,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 923 transitions. [2024-12-02 10:20:02,437 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 923 transitions. Word has length 189 [2024-12-02 10:20:02,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:02,438 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 923 transitions. [2024-12-02 10:20:02,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.636363636363637) internal successors, (172), 11 states have internal predecessors, (172), 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) [2024-12-02 10:20:02,438 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 923 transitions. [2024-12-02 10:20:02,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 10:20:02,440 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:02,440 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:02,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 10:20:02,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 10:20:02,641 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:02,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:02,641 INFO L85 PathProgramCache]: Analyzing trace with hash -532269812, now seen corresponding path program 1 times [2024-12-02 10:20:02,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:02,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331457605] [2024-12-02 10:20:02,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:02,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:03,604 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:20:03,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:03,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331457605] [2024-12-02 10:20:03,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331457605] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:20:03,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32443683] [2024-12-02 10:20:03,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:03,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:20:03,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:20:03,606 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:20:03,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:20:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:04,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 10:20:04,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:20:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:20:04,262 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:20:04,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32443683] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:04,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:20:04,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-02 10:20:04,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518538156] [2024-12-02 10:20:04,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:04,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:20:04,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:04,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:20:04,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:04,264 INFO L87 Difference]: Start difference. First operand 675 states and 923 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2024-12-02 10:20:04,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:04,432 INFO L93 Difference]: Finished difference Result 721 states and 983 transitions. [2024-12-02 10:20:04,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:20:04,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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 190 [2024-12-02 10:20:04,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:04,436 INFO L225 Difference]: With dead ends: 721 [2024-12-02 10:20:04,436 INFO L226 Difference]: Without dead ends: 721 [2024-12-02 10:20:04,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:04,436 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 18 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1271 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:04,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1271 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:20:04,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-12-02 10:20:04,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 703. [2024-12-02 10:20:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 691 states have (on average 1.3589001447178002) internal successors, (939), 692 states have internal predecessors, (939), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:20:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 957 transitions. [2024-12-02 10:20:04,453 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 957 transitions. Word has length 190 [2024-12-02 10:20:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:04,453 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 957 transitions. [2024-12-02 10:20:04,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 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) [2024-12-02 10:20:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 957 transitions. [2024-12-02 10:20:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 10:20:04,456 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:04,456 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:04,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:20:04,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 10:20:04,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:04,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1435220695, now seen corresponding path program 1 times [2024-12-02 10:20:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:04,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884063581] [2024-12-02 10:20:04,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:04,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 10:20:05,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884063581] [2024-12-02 10:20:05,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884063581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:05,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:05,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:05,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816254941] [2024-12-02 10:20:05,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:05,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:05,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:05,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:05,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:05,030 INFO L87 Difference]: Start difference. First operand 703 states and 957 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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) [2024-12-02 10:20:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:05,383 INFO L93 Difference]: Finished difference Result 717 states and 973 transitions. [2024-12-02 10:20:05,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:05,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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 191 [2024-12-02 10:20:05,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:05,385 INFO L225 Difference]: With dead ends: 717 [2024-12-02 10:20:05,385 INFO L226 Difference]: Without dead ends: 717 [2024-12-02 10:20:05,386 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 [2024-12-02 10:20:05,386 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 9 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:05,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1565 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:20:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-12-02 10:20:05,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 711. [2024-12-02 10:20:05,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 711 states, 699 states have (on average 1.357653791130186) internal successors, (949), 700 states have internal predecessors, (949), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 10:20:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 967 transitions. [2024-12-02 10:20:05,396 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 967 transitions. Word has length 191 [2024-12-02 10:20:05,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:05,396 INFO L471 AbstractCegarLoop]: Abstraction has 711 states and 967 transitions. [2024-12-02 10:20:05,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 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) [2024-12-02 10:20:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 967 transitions. [2024-12-02 10:20:05,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-12-02 10:20:05,398 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:05,398 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:05,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:20:05,398 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:05,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:05,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1380980681, now seen corresponding path program 1 times [2024-12-02 10:20:05,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:05,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063112923] [2024-12-02 10:20:05,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:05,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-02 10:20:06,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:06,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063112923] [2024-12-02 10:20:06,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063112923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:20:06,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60812519] [2024-12-02 10:20:06,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:06,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:20:06,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:20:06,104 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:20:06,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:20:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:06,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 10:20:06,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:20:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 10:20:06,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:20:06,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60812519] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:06,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:20:06,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 6 [2024-12-02 10:20:06,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391692534] [2024-12-02 10:20:06,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:06,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:20:06,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:06,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:20:06,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:06,771 INFO L87 Difference]: Start difference. First operand 711 states and 967 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 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) [2024-12-02 10:20:06,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:06,854 INFO L93 Difference]: Finished difference Result 769 states and 1047 transitions. [2024-12-02 10:20:06,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:20:06,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 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 192 [2024-12-02 10:20:06,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:06,859 INFO L225 Difference]: With dead ends: 769 [2024-12-02 10:20:06,859 INFO L226 Difference]: Without dead ends: 769 [2024-12-02 10:20:06,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:06,860 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 455 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:06,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 2068 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:20:06,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2024-12-02 10:20:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 714. [2024-12-02 10:20:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 701 states have (on average 1.3580599144079886) internal successors, (952), 703 states have internal predecessors, (952), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-12-02 10:20:06,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 973 transitions. [2024-12-02 10:20:06,876 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 973 transitions. Word has length 192 [2024-12-02 10:20:06,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:06,876 INFO L471 AbstractCegarLoop]: Abstraction has 714 states and 973 transitions. [2024-12-02 10:20:06,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 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) [2024-12-02 10:20:06,877 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 973 transitions. [2024-12-02 10:20:06,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 10:20:06,879 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:06,879 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:06,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 10:20:07,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 10:20:07,080 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:07,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:07,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1669682427, now seen corresponding path program 1 times [2024-12-02 10:20:07,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:07,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565896923] [2024-12-02 10:20:07,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:07,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:07,877 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:20:07,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565896923] [2024-12-02 10:20:07,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565896923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:20:07,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557772233] [2024-12-02 10:20:07,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:07,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:20:07,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:20:07,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:20:07,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:20:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:08,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:20:08,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:20:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 10:20:08,739 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:20:08,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557772233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:08,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:20:08,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2024-12-02 10:20:08,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169266466] [2024-12-02 10:20:08,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:08,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 10:20:08,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:08,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 10:20:08,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:20:08,741 INFO L87 Difference]: Start difference. First operand 714 states and 973 transitions. Second operand has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:20:09,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:09,099 INFO L93 Difference]: Finished difference Result 738 states and 1001 transitions. [2024-12-02 10:20:09,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 10:20:09,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 196 [2024-12-02 10:20:09,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:09,101 INFO L225 Difference]: With dead ends: 738 [2024-12-02 10:20:09,102 INFO L226 Difference]: Without dead ends: 738 [2024-12-02 10:20:09,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-12-02 10:20:09,102 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 26 mSDsluCounter, 2483 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:09,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2958 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:20:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-12-02 10:20:09,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 728. [2024-12-02 10:20:09,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 715 states have (on average 1.353846153846154) internal successors, (968), 717 states have internal predecessors, (968), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-12-02 10:20:09,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 989 transitions. [2024-12-02 10:20:09,112 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 989 transitions. Word has length 196 [2024-12-02 10:20:09,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:09,113 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 989 transitions. [2024-12-02 10:20:09,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.0) internal successors, (180), 9 states have internal predecessors, (180), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:20:09,113 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 989 transitions. [2024-12-02 10:20:09,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 10:20:09,115 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:09,115 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:09,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:20:09,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 10:20:09,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:09,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:09,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1874390209, now seen corresponding path program 1 times [2024-12-02 10:20:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:09,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433752898] [2024-12-02 10:20:09,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:09,943 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 10:20:09,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:09,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433752898] [2024-12-02 10:20:09,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433752898] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:09,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:09,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:09,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025858498] [2024-12-02 10:20:09,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:09,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:09,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:09,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:09,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:09,944 INFO L87 Difference]: Start difference. First operand 728 states and 989 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:20:10,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:10,263 INFO L93 Difference]: Finished difference Result 724 states and 981 transitions. [2024-12-02 10:20:10,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:10,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 197 [2024-12-02 10:20:10,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:10,266 INFO L225 Difference]: With dead ends: 724 [2024-12-02 10:20:10,266 INFO L226 Difference]: Without dead ends: 724 [2024-12-02 10:20:10,266 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 [2024-12-02 10:20:10,267 INFO L435 NwaCegarLoop]: 483 mSDtfsCounter, 13 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2110 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:10,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2110 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:20:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-12-02 10:20:10,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 722. [2024-12-02 10:20:10,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 709 states have (on average 1.3511988716502115) internal successors, (958), 711 states have internal predecessors, (958), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-12-02 10:20:10,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 979 transitions. [2024-12-02 10:20:10,281 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 979 transitions. Word has length 197 [2024-12-02 10:20:10,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:10,281 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 979 transitions. [2024-12-02 10:20:10,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:20:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 979 transitions. [2024-12-02 10:20:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 10:20:10,283 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:10,283 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:10,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:20:10,284 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:10,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:10,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1336369312, now seen corresponding path program 1 times [2024-12-02 10:20:10,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:10,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622155354] [2024-12-02 10:20:10,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:10,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:10,764 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-12-02 10:20:10,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:10,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622155354] [2024-12-02 10:20:10,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622155354] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:20:10,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:20:10,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 10:20:10,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462754038] [2024-12-02 10:20:10,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:20:10,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:20:10,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:20:10,765 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:20:10,765 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:20:10,766 INFO L87 Difference]: Start difference. First operand 722 states and 979 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 states have internal predecessors, (178), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:20:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:20:10,985 INFO L93 Difference]: Finished difference Result 728 states and 985 transitions. [2024-12-02 10:20:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:20:10,986 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 states have internal predecessors, (178), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 198 [2024-12-02 10:20:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:20:10,988 INFO L225 Difference]: With dead ends: 728 [2024-12-02 10:20:10,988 INFO L226 Difference]: Without dead ends: 728 [2024-12-02 10:20:10,989 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 [2024-12-02 10:20:10,989 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 8 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:20:10,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1740 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 10:20:10,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-12-02 10:20:11,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2024-12-02 10:20:11,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 715 states have (on average 1.3482517482517482) internal successors, (964), 717 states have internal predecessors, (964), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-12-02 10:20:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 985 transitions. [2024-12-02 10:20:11,003 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 985 transitions. Word has length 198 [2024-12-02 10:20:11,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:20:11,003 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 985 transitions. [2024-12-02 10:20:11,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 states have internal predecessors, (178), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 10:20:11,003 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 985 transitions. [2024-12-02 10:20:11,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 10:20:11,004 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:20:11,005 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:20:11,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:20:11,005 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2024-12-02 10:20:11,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:20:11,006 INFO L85 PathProgramCache]: Analyzing trace with hash 2015049770, now seen corresponding path program 1 times [2024-12-02 10:20:11,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:20:11,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058505458] [2024-12-02 10:20:11,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:11,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:20:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:12,277 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-12-02 10:20:12,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:20:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058505458] [2024-12-02 10:20:12,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058505458] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:20:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681183642] [2024-12-02 10:20:12,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:20:12,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:20:12,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:20:12,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:20:12,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad3e6977-2ec8-4adb-898f-0c33fbbcb27e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:20:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:20:12,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 140 conjuncts are in the unsatisfiable core [2024-12-02 10:20:12,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:20:12,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-12-02 10:20:13,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-12-02 10:20:13,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2024-12-02 10:20:13,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 11 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-12-02 10:20:13,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2024-12-02 10:20:13,699 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-12-02 10:20:13,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-12-02 10:20:13,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2024-12-02 10:20:13,807 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 18 treesize of output 10 [2024-12-02 10:20:13,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-02 10:20:13,998 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-12-02 10:20:13,998 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-12-02 10:20:14,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2024-12-02 10:20:30,637 INFO L224 Elim1Store]: Index analysis took 1863 ms