./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd --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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:38:56,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:38:56,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-13 15:38:56,770 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:38:56,770 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:38:56,824 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:38:56,825 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:38:56,828 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:38:56,828 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:38:56,828 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:38:56,829 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:38:56,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:38:56,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:38:56,829 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:38:56,829 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:38:56,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:38:56,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:38:56,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:38:56,830 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:38:56,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:38:56,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:38:56,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:38:56,831 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 15:38:56,831 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 15:38:56,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:38:56,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:38:56,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:38:56,834 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:38:56,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:38:56,834 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:38:56,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:38:56,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:38:56,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:38:56,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:38:56,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:38:56,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:38:56,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:38:56,836 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:38:56,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:38:56,837 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_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd 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 -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2024-11-13 15:38:57,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:38:57,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:38:57,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:38:57,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:38:57,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:38:57,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i Unable to find full path for "g++" [2024-11-13 15:38:59,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:38:59,929 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:38:59,929 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2024-11-13 15:38:59,949 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/data/fb5e528b9/9cf16b10261647b9971237a4914d814c/FLAGc51878d9d [2024-11-13 15:38:59,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/data/fb5e528b9/9cf16b10261647b9971237a4914d814c [2024-11-13 15:38:59,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:38:59,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:38:59,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:38:59,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:38:59,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:38:59,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:38:59" (1/1) ... [2024-11-13 15:38:59,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1141c3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:38:59, skipping insertion in model container [2024-11-13 15:38:59,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:38:59" (1/1) ... [2024-11-13 15:39:00,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:39:00,735 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,766 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,770 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,773 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,779 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,830 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,831 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,834 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,834 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 15:39:00,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:39:00,853 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:39:01,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:39:01,159 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:39:01,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01 WrapperNode [2024-11-13 15:39:01,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:39:01,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:39:01,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:39:01,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:39:01,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,370 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3252 [2024-11-13 15:39:01,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:39:01,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:39:01,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:39:01,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:39:01,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,507 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 34, 172]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 4, 42]. [2024-11-13 15:39:01,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:39:01,653 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:39:01,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:39:01,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:39:01,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (1/1) ... [2024-11-13 15:39:01,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:39:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:39:01,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:39:01,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 15:39:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 15:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:39:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-13 15:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:39:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-13 15:39:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 15:39:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 15:39:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 15:39:01,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 15:39:01,768 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 15:39:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 15:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 15:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 15:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 15:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 15:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 15:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 15:39:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 15:39:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 15:39:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:39:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:39:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 15:39:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:39:01,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:39:02,053 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:39:02,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:39:06,025 INFO L? ?]: Removed 799 outVars from TransFormulas that were not future-live. [2024-11-13 15:39:06,025 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:39:06,081 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:39:06,081 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-13 15:39:06,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:39:06 BoogieIcfgContainer [2024-11-13 15:39:06,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:39:06,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:39:06,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:39:06,097 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:39:06,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:38:59" (1/3) ... [2024-11-13 15:39:06,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167189f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:39:06, skipping insertion in model container [2024-11-13 15:39:06,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:39:01" (2/3) ... [2024-11-13 15:39:06,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167189f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:39:06, skipping insertion in model container [2024-11-13 15:39:06,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:39:06" (3/3) ... [2024-11-13 15:39:06,103 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2024-11-13 15:39:06,128 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:39:06,133 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_BER_test9-1.i that has 6 procedures, 1383 locations, 1 initial locations, 33 loop locations, and 2 error locations. [2024-11-13 15:39:06,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:39:06,265 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;@1881da56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:39:06,266 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:39:06,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 1375 states, 864 states have (on average 1.8391203703703705) internal successors, (1589), 1368 states have internal predecessors, (1589), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-13 15:39:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:39:06,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:06,291 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:06,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:06,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:06,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1593594600, now seen corresponding path program 1 times [2024-11-13 15:39:06,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:06,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525539892] [2024-11-13 15:39:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:06,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:06,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:06,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:06,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525539892] [2024-11-13 15:39:06,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525539892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:06,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:06,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:39:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624856712] [2024-11-13 15:39:06,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:06,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:39:06,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:06,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:39:06,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:39:06,586 INFO L87 Difference]: Start difference. First operand has 1375 states, 864 states have (on average 1.8391203703703705) internal successors, (1589), 1368 states have internal predecessors, (1589), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:06,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:06,754 INFO L93 Difference]: Finished difference Result 1373 states and 2536 transitions. [2024-11-13 15:39:06,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:39:06,756 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-13 15:39:06,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:06,788 INFO L225 Difference]: With dead ends: 1373 [2024-11-13 15:39:06,789 INFO L226 Difference]: Without dead ends: 1371 [2024-11-13 15:39:06,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:39:06,797 INFO L432 NwaCegarLoop]: 2536 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:06,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:39:06,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2024-11-13 15:39:07,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1371. [2024-11-13 15:39:07,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1371 states, 862 states have (on average 1.7703016241299303) internal successors, (1526), 1364 states have internal predecessors, (1526), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 15:39:07,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 2534 transitions. [2024-11-13 15:39:07,586 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 2534 transitions. Word has length 7 [2024-11-13 15:39:07,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:07,587 INFO L471 AbstractCegarLoop]: Abstraction has 1371 states and 2534 transitions. [2024-11-13 15:39:07,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:07,587 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 2534 transitions. [2024-11-13 15:39:07,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:39:07,587 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:07,588 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:07,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:39:07,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:07,589 INFO L85 PathProgramCache]: Analyzing trace with hash -951593346, now seen corresponding path program 1 times [2024-11-13 15:39:07,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:07,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859252014] [2024-11-13 15:39:07,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:07,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:07,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:07,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:07,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859252014] [2024-11-13 15:39:07,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859252014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:07,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:07,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:39:07,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810774725] [2024-11-13 15:39:07,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:07,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:39:07,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:07,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:39:07,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:39:07,995 INFO L87 Difference]: Start difference. First operand 1371 states and 2534 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:09,536 INFO L93 Difference]: Finished difference Result 2725 states and 5052 transitions. [2024-11-13 15:39:09,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:39:09,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-13 15:39:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:09,565 INFO L225 Difference]: With dead ends: 2725 [2024-11-13 15:39:09,566 INFO L226 Difference]: Without dead ends: 2725 [2024-11-13 15:39:09,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:39:09,567 INFO L432 NwaCegarLoop]: 2623 mSDtfsCounter, 1508 mSDsluCounter, 4630 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 7253 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:09,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 7253 Invalid, 566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:39:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2024-11-13 15:39:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 1373. [2024-11-13 15:39:10,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1373 states, 864 states have (on average 1.7685185185185186) internal successors, (1528), 1366 states have internal predecessors, (1528), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 15:39:10,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 2536 transitions. [2024-11-13 15:39:10,484 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 2536 transitions. Word has length 9 [2024-11-13 15:39:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:10,484 INFO L471 AbstractCegarLoop]: Abstraction has 1373 states and 2536 transitions. [2024-11-13 15:39:10,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 2536 transitions. [2024-11-13 15:39:10,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 15:39:10,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:10,489 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:10,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:39:10,491 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:10,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:10,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1446961724, now seen corresponding path program 1 times [2024-11-13 15:39:10,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:10,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439653449] [2024-11-13 15:39:10,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:10,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:11,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:11,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:11,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439653449] [2024-11-13 15:39:11,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439653449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:11,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:11,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:39:11,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847341557] [2024-11-13 15:39:11,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:11,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:39:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:11,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:39:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:39:11,291 INFO L87 Difference]: Start difference. First operand 1373 states and 2536 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:11,482 INFO L93 Difference]: Finished difference Result 1331 states and 2459 transitions. [2024-11-13 15:39:11,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:39:11,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 85 [2024-11-13 15:39:11,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:11,496 INFO L225 Difference]: With dead ends: 1331 [2024-11-13 15:39:11,497 INFO L226 Difference]: Without dead ends: 1331 [2024-11-13 15:39:11,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:39:11,499 INFO L432 NwaCegarLoop]: 2432 mSDtfsCounter, 30 mSDsluCounter, 4845 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7277 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 [2024-11-13 15:39:11,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7277 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:39:11,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2024-11-13 15:39:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1331. [2024-11-13 15:39:11,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 822 states have (on average 1.7652068126520681) internal successors, (1451), 1324 states have internal predecessors, (1451), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 15:39:11,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 2459 transitions. [2024-11-13 15:39:11,764 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 2459 transitions. Word has length 85 [2024-11-13 15:39:11,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:11,765 INFO L471 AbstractCegarLoop]: Abstraction has 1331 states and 2459 transitions. [2024-11-13 15:39:11,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 2459 transitions. [2024-11-13 15:39:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-13 15:39:11,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:11,770 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:11,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:39:11,771 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:11,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1968102600, now seen corresponding path program 1 times [2024-11-13 15:39:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:11,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882338571] [2024-11-13 15:39:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:12,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:39:12,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:12,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882338571] [2024-11-13 15:39:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882338571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:12,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:12,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:39:12,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602354850] [2024-11-13 15:39:12,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:12,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:39:12,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:12,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:39:12,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:12,231 INFO L87 Difference]: Start difference. First operand 1331 states and 2459 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:12,462 INFO L93 Difference]: Finished difference Result 2558 states and 4784 transitions. [2024-11-13 15:39:12,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:39:12,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 85 [2024-11-13 15:39:12,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:12,490 INFO L225 Difference]: With dead ends: 2558 [2024-11-13 15:39:12,490 INFO L226 Difference]: Without dead ends: 2558 [2024-11-13 15:39:12,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:39:12,492 INFO L432 NwaCegarLoop]: 2658 mSDtfsCounter, 1263 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 5095 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:12,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 5095 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:39:12,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2024-11-13 15:39:12,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2554. [2024-11-13 15:39:12,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2554 states, 1545 states have (on average 1.794822006472492) internal successors, (2773), 2547 states have internal predecessors, (2773), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:39:12,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2554 states to 2554 states and 4781 transitions. [2024-11-13 15:39:12,962 INFO L78 Accepts]: Start accepts. Automaton has 2554 states and 4781 transitions. Word has length 85 [2024-11-13 15:39:12,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:12,963 INFO L471 AbstractCegarLoop]: Abstraction has 2554 states and 4781 transitions. [2024-11-13 15:39:12,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:39:12,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2554 states and 4781 transitions. [2024-11-13 15:39:12,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 15:39:12,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:12,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:12,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:39:12,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:12,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:12,968 INFO L85 PathProgramCache]: Analyzing trace with hash -54256104, now seen corresponding path program 1 times [2024-11-13 15:39:12,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:12,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229270279] [2024-11-13 15:39:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:12,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:13,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:39:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:13,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:39:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:39:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:13,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229270279] [2024-11-13 15:39:13,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229270279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:13,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:13,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:39:13,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981730969] [2024-11-13 15:39:13,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:13,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:39:13,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:13,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:39:13,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:39:13,739 INFO L87 Difference]: Start difference. First operand 2554 states and 4781 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-13 15:39:21,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:21,614 INFO L93 Difference]: Finished difference Result 4784 states and 9114 transitions. [2024-11-13 15:39:21,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:39:21,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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 100 [2024-11-13 15:39:21,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:21,653 INFO L225 Difference]: With dead ends: 4784 [2024-11-13 15:39:21,653 INFO L226 Difference]: Without dead ends: 4784 [2024-11-13 15:39:21,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:39:21,654 INFO L432 NwaCegarLoop]: 2555 mSDtfsCounter, 1431 mSDsluCounter, 4710 mSDsCounter, 0 mSdLazyCounter, 2418 mSolverCounterSat, 1005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1937 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 3423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 2418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:21,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1937 Valid, 7265 Invalid, 3423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1005 Valid, 2418 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-13 15:39:21,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4784 states. [2024-11-13 15:39:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4784 to 2556. [2024-11-13 15:39:22,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1547 states have (on average 1.7937944408532644) internal successors, (2775), 2549 states have internal predecessors, (2775), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:39:22,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 4783 transitions. [2024-11-13 15:39:22,361 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 4783 transitions. Word has length 100 [2024-11-13 15:39:22,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:22,362 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 4783 transitions. [2024-11-13 15:39:22,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 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) [2024-11-13 15:39:22,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 4783 transitions. [2024-11-13 15:39:22,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 15:39:22,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:22,368 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:22,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:39:22,368 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:22,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:22,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1672713286, now seen corresponding path program 1 times [2024-11-13 15:39:22,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:22,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349198487] [2024-11-13 15:39:22,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:22,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:22,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:39:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:22,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:39:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:39:22,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:22,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349198487] [2024-11-13 15:39:22,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349198487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:22,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:22,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:39:22,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673201511] [2024-11-13 15:39:22,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:22,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:39:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:39:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:39:22,868 INFO L87 Difference]: Start difference. First operand 2556 states and 4783 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:39:26,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:26,845 INFO L93 Difference]: Finished difference Result 2565 states and 4781 transitions. [2024-11-13 15:39:26,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:39:26,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-13 15:39:26,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:26,866 INFO L225 Difference]: With dead ends: 2565 [2024-11-13 15:39:26,866 INFO L226 Difference]: Without dead ends: 2565 [2024-11-13 15:39:26,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:39:26,868 INFO L432 NwaCegarLoop]: 2415 mSDtfsCounter, 115 mSDsluCounter, 5097 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:26,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 7512 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 15:39:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2024-11-13 15:39:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2556. [2024-11-13 15:39:27,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 1547 states have (on average 1.7847446670976084) internal successors, (2761), 2549 states have internal predecessors, (2761), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:39:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 4769 transitions. [2024-11-13 15:39:27,371 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 4769 transitions. Word has length 157 [2024-11-13 15:39:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:27,371 INFO L471 AbstractCegarLoop]: Abstraction has 2556 states and 4769 transitions. [2024-11-13 15:39:27,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:39:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 4769 transitions. [2024-11-13 15:39:27,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 15:39:27,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:27,375 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:27,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:39:27,375 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:27,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:27,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1858298426, now seen corresponding path program 1 times [2024-11-13 15:39:27,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:27,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071174582] [2024-11-13 15:39:27,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:27,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:27,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:39:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:27,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:39:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:27,754 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 15:39:27,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:27,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071174582] [2024-11-13 15:39:27,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071174582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:27,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:27,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:39:27,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180199553] [2024-11-13 15:39:27,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:39:27,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:27,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:39:27,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:39:27,759 INFO L87 Difference]: Start difference. First operand 2556 states and 4769 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:39:31,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:31,043 INFO L93 Difference]: Finished difference Result 2571 states and 4787 transitions. [2024-11-13 15:39:31,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:39:31,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-13 15:39:31,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:31,058 INFO L225 Difference]: With dead ends: 2571 [2024-11-13 15:39:31,059 INFO L226 Difference]: Without dead ends: 2571 [2024-11-13 15:39:31,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:39:31,060 INFO L432 NwaCegarLoop]: 2430 mSDtfsCounter, 11 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 5713 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:31,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 5713 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 15:39:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2024-11-13 15:39:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2568. [2024-11-13 15:39:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2568 states, 1559 states have (on average 1.7787042976266838) internal successors, (2773), 2561 states have internal predecessors, (2773), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-13 15:39:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2568 states to 2568 states and 4781 transitions. [2024-11-13 15:39:31,534 INFO L78 Accepts]: Start accepts. Automaton has 2568 states and 4781 transitions. Word has length 157 [2024-11-13 15:39:31,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:31,535 INFO L471 AbstractCegarLoop]: Abstraction has 2568 states and 4781 transitions. [2024-11-13 15:39:31,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 3 states have internal predecessors, (148), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:39:31,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2568 states and 4781 transitions. [2024-11-13 15:39:31,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-13 15:39:31,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:31,538 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:31,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:39:31,539 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:31,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:31,541 INFO L85 PathProgramCache]: Analyzing trace with hash -2042302084, now seen corresponding path program 1 times [2024-11-13 15:39:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748580763] [2024-11-13 15:39:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:31,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:32,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:39:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:32,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:39:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:39:32,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:32,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748580763] [2024-11-13 15:39:32,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748580763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:39:32,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:39:32,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:39:32,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769423824] [2024-11-13 15:39:32,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:39:32,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:39:32,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:39:32,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:39:32,126 INFO L87 Difference]: Start difference. First operand 2568 states and 4781 transitions. Second operand has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:39:38,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:38,577 INFO L93 Difference]: Finished difference Result 2654 states and 4895 transitions. [2024-11-13 15:39:38,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:39:38,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-13 15:39:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:38,594 INFO L225 Difference]: With dead ends: 2654 [2024-11-13 15:39:38,594 INFO L226 Difference]: Without dead ends: 2654 [2024-11-13 15:39:38,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:39:38,596 INFO L432 NwaCegarLoop]: 2615 mSDtfsCounter, 6448 mSDsluCounter, 4019 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 2855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6950 SdHoareTripleChecker+Valid, 6634 SdHoareTripleChecker+Invalid, 4134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2855 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:38,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6950 Valid, 6634 Invalid, 4134 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2855 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-13 15:39:38,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2024-11-13 15:39:38,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 1426. [2024-11-13 15:39:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 917 states have (on average 1.7099236641221374) internal successors, (1568), 1419 states have internal predecessors, (1568), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-13 15:39:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2576 transitions. [2024-11-13 15:39:38,885 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2576 transitions. Word has length 157 [2024-11-13 15:39:38,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:38,886 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2576 transitions. [2024-11-13 15:39:38,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.833333333333332) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:39:38,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2576 transitions. [2024-11-13 15:39:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-13 15:39:38,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:38,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:39:38,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:39:38,890 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:38,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:38,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1457763054, now seen corresponding path program 1 times [2024-11-13 15:39:38,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:38,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925796452] [2024-11-13 15:39:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:38,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:39,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:39:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:39,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:39:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:39:39,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:39,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925796452] [2024-11-13 15:39:39,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925796452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:39:39,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129514126] [2024-11-13 15:39:39,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:39,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:39:39,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:39:39,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:39:39,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:39:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:40,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 15:39:40,489 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:39:40,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:39:40,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:39:40,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 15:39:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:39:40,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:39:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:39:41,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129514126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:39:41,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:39:41,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 5] total 12 [2024-11-13 15:39:41,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060484103] [2024-11-13 15:39:41,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:39:41,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:39:41,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:39:41,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:39:41,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:39:41,246 INFO L87 Difference]: Start difference. First operand 1426 states and 2576 transitions. Second operand has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 15:39:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:39:53,400 INFO L93 Difference]: Finished difference Result 4256 states and 7714 transitions. [2024-11-13 15:39:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:39:53,400 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 167 [2024-11-13 15:39:53,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:39:53,420 INFO L225 Difference]: With dead ends: 4256 [2024-11-13 15:39:53,420 INFO L226 Difference]: Without dead ends: 4256 [2024-11-13 15:39:53,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 331 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-13 15:39:53,421 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 5926 mSDsluCounter, 9150 mSDsCounter, 0 mSdLazyCounter, 5378 mSolverCounterSat, 3023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6938 SdHoareTripleChecker+Valid, 11112 SdHoareTripleChecker+Invalid, 8401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3023 IncrementalHoareTripleChecker+Valid, 5378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:39:53,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6938 Valid, 11112 Invalid, 8401 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3023 Valid, 5378 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-13 15:39:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4256 states. [2024-11-13 15:39:53,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4256 to 1773. [2024-11-13 15:39:53,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1260 states have (on average 1.6071428571428572) internal successors, (2025), 1762 states have internal predecessors, (2025), 508 states have call successors, (508), 4 states have call predecessors, (508), 3 states have return successors, (506), 7 states have call predecessors, (506), 506 states have call successors, (506) [2024-11-13 15:39:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 3039 transitions. [2024-11-13 15:39:53,812 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 3039 transitions. Word has length 167 [2024-11-13 15:39:53,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:39:53,813 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 3039 transitions. [2024-11-13 15:39:53,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.833333333333332) internal successors, (250), 11 states have internal predecessors, (250), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 15:39:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 3039 transitions. [2024-11-13 15:39:53,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-13 15:39:53,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:39:53,822 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2024-11-13 15:39:53,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:39:54,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:39:54,023 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:39:54,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:39:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash -209248256, now seen corresponding path program 1 times [2024-11-13 15:39:54,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:39:54,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443294995] [2024-11-13 15:39:54,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:54,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:39:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:59,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:39:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:59,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:39:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:39:59,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:39:59,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443294995] [2024-11-13 15:39:59,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443294995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:39:59,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571655305] [2024-11-13 15:39:59,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:39:59,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:39:59,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:39:59,122 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:39:59,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:39:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:39:59,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 15:39:59,980 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:39:59,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:40:00,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:40:00,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:40:00,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:40:00,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:40:00,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 15:40:00,851 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:40:00,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:40:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 458 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:40:01,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571655305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:40:01,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:40:01,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 21 [2024-11-13 15:40:01,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445219753] [2024-11-13 15:40:01,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:40:01,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 15:40:01,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:01,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 15:40:01,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=273, Unknown=0, NotChecked=0, Total=420 [2024-11-13 15:40:01,814 INFO L87 Difference]: Start difference. First operand 1773 states and 3039 transitions. Second operand has 21 states, 21 states have (on average 33.904761904761905) internal successors, (712), 20 states have internal predecessors, (712), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 15:40:24,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:24,463 INFO L93 Difference]: Finished difference Result 9780 states and 17814 transitions. [2024-11-13 15:40:24,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 15:40:24,463 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 33.904761904761905) internal successors, (712), 20 states have internal predecessors, (712), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 395 [2024-11-13 15:40:24,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:24,493 INFO L225 Difference]: With dead ends: 9780 [2024-11-13 15:40:24,493 INFO L226 Difference]: Without dead ends: 9780 [2024-11-13 15:40:24,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 786 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2024-11-13 15:40:24,494 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 19337 mSDsluCounter, 18566 mSDsCounter, 0 mSdLazyCounter, 10378 mSolverCounterSat, 8022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22361 SdHoareTripleChecker+Valid, 20528 SdHoareTripleChecker+Invalid, 18400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8022 IncrementalHoareTripleChecker+Valid, 10378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:24,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22361 Valid, 20528 Invalid, 18400 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8022 Valid, 10378 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time] [2024-11-13 15:40:24,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9780 states. [2024-11-13 15:40:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 2637. [2024-11-13 15:40:25,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2118 states have (on average 1.4971671388101984) internal successors, (3171), 2620 states have internal predecessors, (3171), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-13 15:40:25,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 4197 transitions. [2024-11-13 15:40:25,666 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 4197 transitions. Word has length 395 [2024-11-13 15:40:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:25,667 INFO L471 AbstractCegarLoop]: Abstraction has 2637 states and 4197 transitions. [2024-11-13 15:40:25,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 33.904761904761905) internal successors, (712), 20 states have internal predecessors, (712), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 15:40:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 4197 transitions. [2024-11-13 15:40:25,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2024-11-13 15:40:25,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:25,691 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-13 15:40:25,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:40:25,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:25,893 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:40:25,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:25,896 INFO L85 PathProgramCache]: Analyzing trace with hash -648837340, now seen corresponding path program 2 times [2024-11-13 15:40:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:25,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499800671] [2024-11-13 15:40:25,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:25,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:40,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:40:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:40,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:40:40,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:40,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:40:40,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:40,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499800671] [2024-11-13 15:40:40,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499800671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:40,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367567808] [2024-11-13 15:40:40,024 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:40:40,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:40,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:40,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:40,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:40:40,909 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:40:40,910 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:40:40,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 15:40:40,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:40:40,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 15:40:41,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3426 trivial. 0 not checked. [2024-11-13 15:40:41,922 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:40:41,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367567808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:40:41,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:40:41,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [26] total 33 [2024-11-13 15:40:41,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068477056] [2024-11-13 15:40:41,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:40:41,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:40:41,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:40:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:40:41,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 15:40:41,926 INFO L87 Difference]: Start difference. First operand 2637 states and 4197 transitions. Second operand has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:40:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:40:45,398 INFO L93 Difference]: Finished difference Result 3836 states and 6471 transitions. [2024-11-13 15:40:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:40:45,399 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 851 [2024-11-13 15:40:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:40:45,414 INFO L225 Difference]: With dead ends: 3836 [2024-11-13 15:40:45,414 INFO L226 Difference]: Without dead ends: 3836 [2024-11-13 15:40:45,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 15:40:45,415 INFO L432 NwaCegarLoop]: 2549 mSDtfsCounter, 1471 mSDsluCounter, 8168 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 10717 SdHoareTripleChecker+Invalid, 2005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:40:45,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 10717 Invalid, 2005 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 15:40:45,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3836 states. [2024-11-13 15:40:46,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3836 to 2672. [2024-11-13 15:40:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2672 states, 2153 states have (on average 1.4914073385973061) internal successors, (3211), 2655 states have internal predecessors, (3211), 514 states have call successors, (514), 4 states have call predecessors, (514), 3 states have return successors, (512), 13 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-13 15:40:46,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2672 states to 2672 states and 4237 transitions. [2024-11-13 15:40:46,028 INFO L78 Accepts]: Start accepts. Automaton has 2672 states and 4237 transitions. Word has length 851 [2024-11-13 15:40:46,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:40:46,030 INFO L471 AbstractCegarLoop]: Abstraction has 2672 states and 4237 transitions. [2024-11-13 15:40:46,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.1) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:40:46,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2672 states and 4237 transitions. [2024-11-13 15:40:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-13 15:40:46,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:40:46,075 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-13 15:40:46,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:40:46,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:46,276 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:40:46,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:40:46,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1795202948, now seen corresponding path program 1 times [2024-11-13 15:40:46,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:40:46,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099107703] [2024-11-13 15:40:46,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:46,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:40:47,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:59,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:40:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:59,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:40:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:40:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:40:59,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:40:59,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099107703] [2024-11-13 15:40:59,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099107703] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:40:59,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065177670] [2024-11-13 15:40:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:40:59,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:40:59,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:40:59,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:40:59,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:41:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:41:00,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 4166 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 15:41:00,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:41:00,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 15:41:01,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:01,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:01,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:01,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:01,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:01,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:02,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:02,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:02,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:02,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-13 15:41:02,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 15:41:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:41:02,569 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:41:04,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3426 backedges. 0 proven. 3422 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:41:04,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065177670] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:41:04,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:41:04,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 15, 14] total 39 [2024-11-13 15:41:04,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945096546] [2024-11-13 15:41:04,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:41:04,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-13 15:41:04,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:41:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-13 15:41:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=573, Invalid=909, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 15:41:04,514 INFO L87 Difference]: Start difference. First operand 2672 states and 4237 transitions. Second operand has 39 states, 39 states have (on average 41.97435897435897) internal successors, (1637), 38 states have internal predecessors, (1637), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 15:42:07,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:07,375 INFO L93 Difference]: Finished difference Result 18530 states and 33583 transitions. [2024-11-13 15:42:07,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-13 15:42:07,376 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 41.97435897435897) internal successors, (1637), 38 states have internal predecessors, (1637), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 852 [2024-11-13 15:42:07,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:07,449 INFO L225 Difference]: With dead ends: 18530 [2024-11-13 15:42:07,449 INFO L226 Difference]: Without dead ends: 18530 [2024-11-13 15:42:07,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1751 GetRequests, 1698 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=878, Invalid=1774, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 15:42:07,451 INFO L432 NwaCegarLoop]: 1962 mSDtfsCounter, 47531 mSDsluCounter, 32425 mSDsCounter, 0 mSdLazyCounter, 17449 mSolverCounterSat, 15926 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53579 SdHoareTripleChecker+Valid, 34387 SdHoareTripleChecker+Invalid, 33375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 15926 IncrementalHoareTripleChecker+Valid, 17449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:07,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53579 Valid, 34387 Invalid, 33375 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [15926 Valid, 17449 Invalid, 0 Unknown, 0 Unchecked, 57.1s Time] [2024-11-13 15:42:07,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18530 states. [2024-11-13 15:42:09,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18530 to 4400. [2024-11-13 15:42:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4400 states, 3869 states have (on average 1.4223313517704834) internal successors, (5503), 4371 states have internal predecessors, (5503), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 15:42:09,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4400 states to 4400 states and 6553 transitions. [2024-11-13 15:42:09,945 INFO L78 Accepts]: Start accepts. Automaton has 4400 states and 6553 transitions. Word has length 852 [2024-11-13 15:42:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:09,948 INFO L471 AbstractCegarLoop]: Abstraction has 4400 states and 6553 transitions. [2024-11-13 15:42:09,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 41.97435897435897) internal successors, (1637), 38 states have internal predecessors, (1637), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-13 15:42:09,949 INFO L276 IsEmpty]: Start isEmpty. Operand 4400 states and 6553 transitions. [2024-11-13 15:42:09,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1765 [2024-11-13 15:42:09,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:09,983 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 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] [2024-11-13 15:42:10,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 15:42:10,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:42:10,184 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:42:10,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:10,191 INFO L85 PathProgramCache]: Analyzing trace with hash -757864900, now seen corresponding path program 2 times [2024-11-13 15:42:10,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:10,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008603356] [2024-11-13 15:42:10,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:10,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:12,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:11,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:43:11,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:11,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:43:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 17558 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:43:11,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:11,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008603356] [2024-11-13 15:43:11,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008603356] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:11,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709413662] [2024-11-13 15:43:11,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:43:11,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:11,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:11,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:11,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:43:13,452 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:43:13,452 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:43:13,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:43:13,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 15:43:13,607 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:43:13,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709413662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:13,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:43:13,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [50] total 52 [2024-11-13 15:43:13,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393007352] [2024-11-13 15:43:13,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:13,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:43:13,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:13,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:43:13,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=906, Invalid=1746, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 15:43:13,611 INFO L87 Difference]: Start difference. First operand 4400 states and 6553 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:43:13,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:13,879 INFO L93 Difference]: Finished difference Result 4441 states and 6604 transitions. [2024-11-13 15:43:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:43:13,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1764 [2024-11-13 15:43:13,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:13,893 INFO L225 Difference]: With dead ends: 4441 [2024-11-13 15:43:13,894 INFO L226 Difference]: Without dead ends: 4441 [2024-11-13 15:43:13,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1829 GetRequests, 1779 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1237 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=906, Invalid=1746, Unknown=0, NotChecked=0, Total=2652 [2024-11-13 15:43:13,897 INFO L432 NwaCegarLoop]: 2434 mSDtfsCounter, 17 mSDsluCounter, 4678 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7112 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 [2024-11-13 15:43:13,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7112 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:43:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2024-11-13 15:43:14,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4433. [2024-11-13 15:43:14,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4433 states, 3902 states have (on average 1.4202972834443874) internal successors, (5542), 4404 states have internal predecessors, (5542), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 15:43:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4433 states to 4433 states and 6592 transitions. [2024-11-13 15:43:14,202 INFO L78 Accepts]: Start accepts. Automaton has 4433 states and 6592 transitions. Word has length 1764 [2024-11-13 15:43:14,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:14,205 INFO L471 AbstractCegarLoop]: Abstraction has 4433 states and 6592 transitions. [2024-11-13 15:43:14,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:43:14,205 INFO L276 IsEmpty]: Start isEmpty. Operand 4433 states and 6592 transitions. [2024-11-13 15:43:14,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1766 [2024-11-13 15:43:14,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:14,230 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:14,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:43:14,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e036f02c-95f0-4c47-a49e-51e7e0bd1e1c/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:14,431 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:43:14,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:14,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1621949041, now seen corresponding path program 1 times [2024-11-13 15:43:14,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:14,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430321137] [2024-11-13 15:43:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:14,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:20,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:43:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:20,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:43:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 15:43:20,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:20,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430321137] [2024-11-13 15:43:20,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430321137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:20,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:43:20,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:43:20,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33647225] [2024-11-13 15:43:20,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:20,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:43:20,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:20,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:43:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:43:20,029 INFO L87 Difference]: Start difference. First operand 4433 states and 6592 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:43:25,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:25,186 INFO L93 Difference]: Finished difference Result 4449 states and 6633 transitions. [2024-11-13 15:43:25,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:43:25,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1765 [2024-11-13 15:43:25,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:25,198 INFO L225 Difference]: With dead ends: 4449 [2024-11-13 15:43:25,198 INFO L226 Difference]: Without dead ends: 4449 [2024-11-13 15:43:25,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:43:25,199 INFO L432 NwaCegarLoop]: 2428 mSDtfsCounter, 22 mSDsluCounter, 10297 mSDsCounter, 0 mSdLazyCounter, 3913 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12725 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 3913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:25,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 12725 Invalid, 4416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 3913 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-13 15:43:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4449 states. [2024-11-13 15:43:25,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4449 to 4437. [2024-11-13 15:43:25,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4437 states, 3906 states have (on average 1.4201228878648233) internal successors, (5547), 4408 states have internal predecessors, (5547), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 15:43:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4437 states to 4437 states and 6597 transitions. [2024-11-13 15:43:25,399 INFO L78 Accepts]: Start accepts. Automaton has 4437 states and 6597 transitions. Word has length 1765 [2024-11-13 15:43:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:25,400 INFO L471 AbstractCegarLoop]: Abstraction has 4437 states and 6597 transitions. [2024-11-13 15:43:25,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:43:25,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4437 states and 6597 transitions. [2024-11-13 15:43:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2024-11-13 15:43:25,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:25,426 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:25,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:43:25,426 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:43:25,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:25,427 INFO L85 PathProgramCache]: Analyzing trace with hash -555261373, now seen corresponding path program 1 times [2024-11-13 15:43:25,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:25,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978495973] [2024-11-13 15:43:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:25,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:31,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 15:43:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:31,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 15:43:31,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:31,667 INFO L134 CoverageAnalysis]: Checked inductivity of 17562 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17562 trivial. 0 not checked. [2024-11-13 15:43:31,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:31,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978495973] [2024-11-13 15:43:31,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978495973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:31,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:43:31,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:43:31,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431401563] [2024-11-13 15:43:31,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:31,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:43:31,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:31,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:43:31,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:43:31,670 INFO L87 Difference]: Start difference. First operand 4437 states and 6597 transitions. Second operand has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:43:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:37,723 INFO L93 Difference]: Finished difference Result 4463 states and 6653 transitions. [2024-11-13 15:43:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:43:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 1766 [2024-11-13 15:43:37,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:37,737 INFO L225 Difference]: With dead ends: 4463 [2024-11-13 15:43:37,738 INFO L226 Difference]: Without dead ends: 4463 [2024-11-13 15:43:37,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:43:37,739 INFO L432 NwaCegarLoop]: 2418 mSDtfsCounter, 33 mSDsluCounter, 10320 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 504 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 12738 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 504 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:37,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 12738 Invalid, 4465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [504 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-13 15:43:37,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4463 states. [2024-11-13 15:43:37,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4463 to 4445. [2024-11-13 15:43:37,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4445 states, 3914 states have (on average 1.4200306591722023) internal successors, (5558), 4416 states have internal predecessors, (5558), 526 states have call successors, (526), 4 states have call predecessors, (526), 3 states have return successors, (524), 25 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-13 15:43:37,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4445 states to 4445 states and 6608 transitions. [2024-11-13 15:43:37,990 INFO L78 Accepts]: Start accepts. Automaton has 4445 states and 6608 transitions. Word has length 1766 [2024-11-13 15:43:38,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:38,076 INFO L471 AbstractCegarLoop]: Abstraction has 4445 states and 6608 transitions. [2024-11-13 15:43:38,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.22222222222222) internal successors, (164), 8 states have internal predecessors, (164), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 15:43:38,076 INFO L276 IsEmpty]: Start isEmpty. Operand 4445 states and 6608 transitions. [2024-11-13 15:43:38,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1767 [2024-11-13 15:43:38,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:38,106 INFO L215 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:38,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:43:38,107 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-13 15:43:38,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:38,111 INFO L85 PathProgramCache]: Analyzing trace with hash 869723615, now seen corresponding path program 1 times [2024-11-13 15:43:38,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:38,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646534111] [2024-11-13 15:43:38,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:38,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat