./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-queue-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-queue-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9a441ad5f70efa202eb02609b90cbc83f5bf4487618c2a09bffcfe320d65f90 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:45:26,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:45:26,728 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:45:26,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:45:26,742 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:45:26,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:45:26,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:45:26,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:45:26,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:45:26,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:45:26,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:45:26,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:45:26,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:45:26,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:45:26,800 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:45:26,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:45:26,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:45:26,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:45:26,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:45:26,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:45:26,802 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:45:26,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:26,803 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:26,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:26,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:26,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:45:26,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:26,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:26,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:26,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:26,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:45:26,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:45:26,805 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:45:26,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:45:26,805 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:45:26,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:45:26,806 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:45:26,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:45:26,806 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_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> a9a441ad5f70efa202eb02609b90cbc83f5bf4487618c2a09bffcfe320d65f90 [2024-11-28 04:45:27,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:45:27,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:45:27,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:45:27,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:45:27,172 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:45:27,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/forester-heap/sll-queue-1.i [2024-11-28 04:45:30,745 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/data/08bc6e6ef/26f3e30cb96540628b0a62fd9e5e7d22/FLAG86305495d [2024-11-28 04:45:31,238 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:45:31,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/sv-benchmarks/c/forester-heap/sll-queue-1.i [2024-11-28 04:45:31,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/data/08bc6e6ef/26f3e30cb96540628b0a62fd9e5e7d22/FLAG86305495d [2024-11-28 04:45:31,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/data/08bc6e6ef/26f3e30cb96540628b0a62fd9e5e7d22 [2024-11-28 04:45:31,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:45:31,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:45:31,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:31,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:45:31,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:45:31,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,314 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2511d8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31, skipping insertion in model container [2024-11-28 04:45:31,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:45:31,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:31,884 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:45:31,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:31,999 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:45:31,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31 WrapperNode [2024-11-28 04:45:32,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:32,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:32,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:45:32,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:45:32,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,085 INFO L138 Inliner]: procedures = 119, calls = 49, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 206 [2024-11-28 04:45:32,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:32,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:45:32,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:45:32,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:45:32,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,125 INFO L175 MemorySlicer]: Split 28 memory accesses to 2 slices as follows [2, 26]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2024-11-28 04:45:32,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,137 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:45:32,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:45:32,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:45:32,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:45:32,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:32,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:32,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:45:32,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:45:32,259 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 04:45:32,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 04:45:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:45:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:45:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:45:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:45:32,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:45:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:45:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:45:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:45:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:45:32,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:45:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:45:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:45:32,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:45:32,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:45:32,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:45:32,443 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:45:32,445 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:45:33,197 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-28 04:45:33,197 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:45:33,228 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:45:33,228 INFO L312 CfgBuilder]: Removed 17 assume(true) statements. [2024-11-28 04:45:33,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:33 BoogieIcfgContainer [2024-11-28 04:45:33,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:45:33,235 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:45:33,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:45:33,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:45:33,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:45:31" (1/3) ... [2024-11-28 04:45:33,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a5914c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:33, skipping insertion in model container [2024-11-28 04:45:33,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (2/3) ... [2024-11-28 04:45:33,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a5914c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:33, skipping insertion in model container [2024-11-28 04:45:33,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:33" (3/3) ... [2024-11-28 04:45:33,249 INFO L128 eAbstractionObserver]: Analyzing ICFG sll-queue-1.i [2024-11-28 04:45:33,270 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:45:33,272 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sll-queue-1.i that has 2 procedures, 178 locations, 1 initial locations, 17 loop locations, and 57 error locations. [2024-11-28 04:45:33,372 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:45:33,394 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;@1e1fb667, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:45:33,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-11-28 04:45:33,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 105 states have (on average 2.085714285714286) internal successors, (219), 162 states have internal predecessors, (219), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 04:45:33,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:45:33,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:33,410 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:45:33,410 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:33,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:33,420 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2024-11-28 04:45:33,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:33,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626578922] [2024-11-28 04:45:33,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:33,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:33,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:33,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626578922] [2024-11-28 04:45:33,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626578922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:33,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:33,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:33,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308607846] [2024-11-28 04:45:33,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:33,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:33,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:33,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:33,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:33,718 INFO L87 Difference]: Start difference. First operand has 178 states, 105 states have (on average 2.085714285714286) internal successors, (219), 162 states have internal predecessors, (219), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-28 04:45:34,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:34,126 INFO L93 Difference]: Finished difference Result 155 states and 180 transitions. [2024-11-28 04:45:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:34,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:45:34,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:34,142 INFO L225 Difference]: With dead ends: 155 [2024-11-28 04:45:34,143 INFO L226 Difference]: Without dead ends: 153 [2024-11-28 04:45:34,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:34,149 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 131 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:34,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 116 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:45:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-28 04:45:34,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-28 04:45:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 92 states have (on average 1.7826086956521738) internal successors, (164), 151 states have internal predecessors, (164), 14 states have call successors, (14), 1 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 178 transitions. [2024-11-28 04:45:34,219 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 178 transitions. Word has length 3 [2024-11-28 04:45:34,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:34,220 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 178 transitions. [2024-11-28 04:45:34,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-28 04:45:34,220 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 178 transitions. [2024-11-28 04:45:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:45:34,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:34,221 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:45:34,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:45:34,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:34,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:34,223 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2024-11-28 04:45:34,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:34,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909707826] [2024-11-28 04:45:34,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:34,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:34,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:34,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909707826] [2024-11-28 04:45:34,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909707826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:34,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:34,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:34,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036497701] [2024-11-28 04:45:34,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:34,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:34,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:34,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:34,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:34,408 INFO L87 Difference]: Start difference. First operand 153 states and 178 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-28 04:45:34,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:34,666 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2024-11-28 04:45:34,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:34,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-28 04:45:34,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:34,668 INFO L225 Difference]: With dead ends: 143 [2024-11-28 04:45:34,668 INFO L226 Difference]: Without dead ends: 143 [2024-11-28 04:45:34,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:34,669 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 131 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:34,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 117 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:45:34,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-28 04:45:34,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-28 04:45:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 92 states have (on average 1.6630434782608696) internal successors, (153), 141 states have internal predecessors, (153), 14 states have call successors, (14), 1 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:34,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2024-11-28 04:45:34,694 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 3 [2024-11-28 04:45:34,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:34,694 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2024-11-28 04:45:34,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-28 04:45:34,694 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2024-11-28 04:45:34,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:45:34,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:34,695 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:34,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:45:34,695 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:34,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:34,700 INFO L85 PathProgramCache]: Analyzing trace with hash 919193298, now seen corresponding path program 1 times [2024-11-28 04:45:34,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:34,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270890789] [2024-11-28 04:45:34,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:34,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:35,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:35,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:35,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270890789] [2024-11-28 04:45:35,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270890789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:35,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:35,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:35,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347755277] [2024-11-28 04:45:35,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:35,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:35,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:35,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:35,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:35,197 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:35,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:35,645 INFO L93 Difference]: Finished difference Result 217 states and 258 transitions. [2024-11-28 04:45:35,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:35,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 04:45:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:35,648 INFO L225 Difference]: With dead ends: 217 [2024-11-28 04:45:35,648 INFO L226 Difference]: Without dead ends: 217 [2024-11-28 04:45:35,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:35,654 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 279 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:35,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 183 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:45:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-28 04:45:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 151. [2024-11-28 04:45:35,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 100 states have (on average 1.64) internal successors, (164), 149 states have internal predecessors, (164), 14 states have call successors, (14), 1 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 178 transitions. [2024-11-28 04:45:35,675 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 178 transitions. Word has length 9 [2024-11-28 04:45:35,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:35,675 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 178 transitions. [2024-11-28 04:45:35,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 178 transitions. [2024-11-28 04:45:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:45:35,679 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:35,679 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:35,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:45:35,679 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:35,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:35,680 INFO L85 PathProgramCache]: Analyzing trace with hash 919193297, now seen corresponding path program 1 times [2024-11-28 04:45:35,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:35,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714556478] [2024-11-28 04:45:35,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:35,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:35,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:35,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:35,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714556478] [2024-11-28 04:45:35,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714556478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:35,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:35,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:35,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111469789] [2024-11-28 04:45:35,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:35,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:45:35,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:35,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:45:35,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:45:35,865 INFO L87 Difference]: Start difference. First operand 151 states and 178 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:36,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:36,139 INFO L93 Difference]: Finished difference Result 152 states and 180 transitions. [2024-11-28 04:45:36,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:36,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-28 04:45:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:36,141 INFO L225 Difference]: With dead ends: 152 [2024-11-28 04:45:36,141 INFO L226 Difference]: Without dead ends: 152 [2024-11-28 04:45:36,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:36,144 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 221 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:36,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 123 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:45:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-28 04:45:36,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2024-11-28 04:45:36,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 105 states have (on average 1.5714285714285714) internal successors, (165), 149 states have internal predecessors, (165), 14 states have call successors, (14), 1 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:36,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 179 transitions. [2024-11-28 04:45:36,165 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 179 transitions. Word has length 9 [2024-11-28 04:45:36,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:36,166 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 179 transitions. [2024-11-28 04:45:36,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:36,166 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 179 transitions. [2024-11-28 04:45:36,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:45:36,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:36,167 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:36,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:45:36,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:36,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1413703274, now seen corresponding path program 1 times [2024-11-28 04:45:36,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:36,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447148779] [2024-11-28 04:45:36,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:36,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:36,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:36,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447148779] [2024-11-28 04:45:36,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447148779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:36,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:36,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:36,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463200625] [2024-11-28 04:45:36,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:36,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:36,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:36,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:36,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:36,217 INFO L87 Difference]: Start difference. First operand 151 states and 179 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:36,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:36,276 INFO L93 Difference]: Finished difference Result 146 states and 168 transitions. [2024-11-28 04:45:36,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:36,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 04:45:36,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:36,278 INFO L225 Difference]: With dead ends: 146 [2024-11-28 04:45:36,278 INFO L226 Difference]: Without dead ends: 146 [2024-11-28 04:45:36,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:36,279 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 117 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:36,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 149 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:36,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-28 04:45:36,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-28 04:45:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 105 states have (on average 1.5142857142857142) internal successors, (159), 144 states have internal predecessors, (159), 9 states have call successors, (9), 1 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 168 transitions. [2024-11-28 04:45:36,299 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 168 transitions. Word has length 11 [2024-11-28 04:45:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:36,299 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 168 transitions. [2024-11-28 04:45:36,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 168 transitions. [2024-11-28 04:45:36,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:45:36,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:36,300 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:36,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:45:36,300 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:36,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:36,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1678154925, now seen corresponding path program 1 times [2024-11-28 04:45:36,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:36,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947638987] [2024-11-28 04:45:36,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:36,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:36,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:36,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947638987] [2024-11-28 04:45:36,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947638987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:36,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:36,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:45:36,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076723560] [2024-11-28 04:45:36,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:36,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:36,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:36,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:36,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:36,593 INFO L87 Difference]: Start difference. First operand 146 states and 168 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-28 04:45:37,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:37,054 INFO L93 Difference]: Finished difference Result 208 states and 240 transitions. [2024-11-28 04:45:37,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:45:37,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-11-28 04:45:37,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:37,056 INFO L225 Difference]: With dead ends: 208 [2024-11-28 04:45:37,057 INFO L226 Difference]: Without dead ends: 208 [2024-11-28 04:45:37,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:37,058 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 91 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:37,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 679 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:45:37,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-28 04:45:37,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 145. [2024-11-28 04:45:37,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 105 states have (on average 1.5047619047619047) internal successors, (158), 143 states have internal predecessors, (158), 9 states have call successors, (9), 1 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 167 transitions. [2024-11-28 04:45:37,066 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 167 transitions. Word has length 13 [2024-11-28 04:45:37,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:37,067 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 167 transitions. [2024-11-28 04:45:37,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-28 04:45:37,067 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 167 transitions. [2024-11-28 04:45:37,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:45:37,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:37,068 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:37,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:45:37,069 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:37,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:37,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1678154924, now seen corresponding path program 1 times [2024-11-28 04:45:37,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:37,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174725156] [2024-11-28 04:45:37,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:37,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:37,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174725156] [2024-11-28 04:45:37,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174725156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:37,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:37,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:45:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118698528] [2024-11-28 04:45:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:37,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:37,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:37,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:37,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:37,421 INFO L87 Difference]: Start difference. First operand 145 states and 167 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-28 04:45:37,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:37,883 INFO L93 Difference]: Finished difference Result 201 states and 233 transitions. [2024-11-28 04:45:37,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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 13 [2024-11-28 04:45:37,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:37,886 INFO L225 Difference]: With dead ends: 201 [2024-11-28 04:45:37,886 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 04:45:37,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:37,887 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 87 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:37,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 676 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:45:37,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 04:45:37,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 133. [2024-11-28 04:45:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 131 states have internal predecessors, (145), 9 states have call successors, (9), 1 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:37,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2024-11-28 04:45:37,906 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 13 [2024-11-28 04:45:37,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:37,906 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2024-11-28 04:45:37,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) [2024-11-28 04:45:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2024-11-28 04:45:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-28 04:45:37,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:37,907 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:37,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 04:45:37,908 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:37,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:37,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1705325276, now seen corresponding path program 1 times [2024-11-28 04:45:37,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:37,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587247202] [2024-11-28 04:45:37,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:37,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:37,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:37,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:37,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587247202] [2024-11-28 04:45:37,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587247202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:37,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:37,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590374287] [2024-11-28 04:45:37,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:37,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:37,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:37,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:37,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:37,966 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:38,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:38,007 INFO L93 Difference]: Finished difference Result 190 states and 219 transitions. [2024-11-28 04:45:38,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:38,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-28 04:45:38,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:38,008 INFO L225 Difference]: With dead ends: 190 [2024-11-28 04:45:38,009 INFO L226 Difference]: Without dead ends: 190 [2024-11-28 04:45:38,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:38,010 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 46 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:38,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 259 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:38,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-28 04:45:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 147. [2024-11-28 04:45:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 113 states have (on average 1.415929203539823) internal successors, (160), 145 states have internal predecessors, (160), 9 states have call successors, (9), 1 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:38,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 169 transitions. [2024-11-28 04:45:38,017 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 169 transitions. Word has length 17 [2024-11-28 04:45:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:38,017 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 169 transitions. [2024-11-28 04:45:38,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 169 transitions. [2024-11-28 04:45:38,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:45:38,018 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:38,018 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:38,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:45:38,018 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:38,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:38,020 INFO L85 PathProgramCache]: Analyzing trace with hash -842713174, now seen corresponding path program 1 times [2024-11-28 04:45:38,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:38,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666025742] [2024-11-28 04:45:38,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:38,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:38,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666025742] [2024-11-28 04:45:38,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666025742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:38,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:38,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:45:38,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010637201] [2024-11-28 04:45:38,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:38,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:38,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:38,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:38,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:38,379 INFO L87 Difference]: Start difference. First operand 147 states and 169 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-11-28 04:45:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:38,604 INFO L93 Difference]: Finished difference Result 156 states and 178 transitions. [2024-11-28 04:45:38,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:38,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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 20 [2024-11-28 04:45:38,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:38,605 INFO L225 Difference]: With dead ends: 156 [2024-11-28 04:45:38,606 INFO L226 Difference]: Without dead ends: 156 [2024-11-28 04:45:38,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:45:38,607 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 14 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:38,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 597 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:45:38,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-28 04:45:38,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2024-11-28 04:45:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 118 states have (on average 1.3983050847457628) internal successors, (165), 150 states have internal predecessors, (165), 9 states have call successors, (9), 1 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 174 transitions. [2024-11-28 04:45:38,614 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 174 transitions. Word has length 20 [2024-11-28 04:45:38,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:38,615 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 174 transitions. [2024-11-28 04:45:38,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 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) [2024-11-28 04:45:38,615 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 174 transitions. [2024-11-28 04:45:38,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 04:45:38,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:38,616 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:38,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:45:38,616 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:38,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:38,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1930095483, now seen corresponding path program 1 times [2024-11-28 04:45:38,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:38,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937415412] [2024-11-28 04:45:38,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:38,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:38,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:38,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937415412] [2024-11-28 04:45:38,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937415412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:38,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:38,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:45:38,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851855859] [2024-11-28 04:45:38,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:38,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:38,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:38,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:38,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:38,829 INFO L87 Difference]: Start difference. First operand 152 states and 174 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:39,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:39,006 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2024-11-28 04:45:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:45:39,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-28 04:45:39,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:39,010 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:45:39,010 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:45:39,011 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:45:39,011 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 81 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:39,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 572 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:39,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:45:39,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-28 04:45:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 118 states have (on average 1.3898305084745763) internal successors, (164), 149 states have internal predecessors, (164), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 172 transitions. [2024-11-28 04:45:39,019 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 172 transitions. Word has length 22 [2024-11-28 04:45:39,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:39,020 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 172 transitions. [2024-11-28 04:45:39,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:39,020 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 172 transitions. [2024-11-28 04:45:39,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 04:45:39,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:39,022 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:39,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:45:39,022 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:39,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash 934520084, now seen corresponding path program 1 times [2024-11-28 04:45:39,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:39,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269508899] [2024-11-28 04:45:39,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:39,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:39,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:39,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:39,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269508899] [2024-11-28 04:45:39,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269508899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:39,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:39,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:45:39,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891211689] [2024-11-28 04:45:39,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:39,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:45:39,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:39,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:45:39,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:39,146 INFO L87 Difference]: Start difference. First operand 151 states and 172 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-28 04:45:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:39,291 INFO L93 Difference]: Finished difference Result 151 states and 171 transitions. [2024-11-28 04:45:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:39,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2024-11-28 04:45:39,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:39,293 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:45:39,293 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:45:39,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:39,294 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 127 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:39,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 209 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:45:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-28 04:45:39,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 118 states have (on average 1.38135593220339) internal successors, (163), 149 states have internal predecessors, (163), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 171 transitions. [2024-11-28 04:45:39,305 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 171 transitions. Word has length 23 [2024-11-28 04:45:39,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:39,307 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 171 transitions. [2024-11-28 04:45:39,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-28 04:45:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 171 transitions. [2024-11-28 04:45:39,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:45:39,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:39,308 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:39,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:45:39,309 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:39,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:39,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1029146377, now seen corresponding path program 1 times [2024-11-28 04:45:39,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:39,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128933343] [2024-11-28 04:45:39,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:39,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:39,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:39,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:39,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128933343] [2024-11-28 04:45:39,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128933343] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:39,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201843370] [2024-11-28 04:45:39,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:39,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:39,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:39,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:39,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:45:39,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:39,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:45:39,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:39,794 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 [2024-11-28 04:45:39,805 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 [2024-11-28 04:45:39,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-28 04:45:39,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-11-28 04:45:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:40,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:40,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201843370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:40,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:40,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-11-28 04:45:40,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359625237] [2024-11-28 04:45:40,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:40,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:45:40,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:40,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:45:40,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:40,266 INFO L87 Difference]: Start difference. First operand 151 states and 171 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-11-28 04:45:40,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:40,388 INFO L93 Difference]: Finished difference Result 160 states and 180 transitions. [2024-11-28 04:45:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:40,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2024-11-28 04:45:40,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:40,390 INFO L225 Difference]: With dead ends: 160 [2024-11-28 04:45:40,390 INFO L226 Difference]: Without dead ends: 160 [2024-11-28 04:45:40,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:40,391 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 2 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:40,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 473 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-28 04:45:40,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-28 04:45:40,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 127 states have (on average 1.3543307086614174) internal successors, (172), 158 states have internal predecessors, (172), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions. [2024-11-28 04:45:40,398 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 27 [2024-11-28 04:45:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:40,398 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions. [2024-11-28 04:45:40,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2024-11-28 04:45:40,398 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions. [2024-11-28 04:45:40,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 04:45:40,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:40,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:40,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:45:40,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:45:40,600 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:40,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:40,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1029148747, now seen corresponding path program 1 times [2024-11-28 04:45:40,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:40,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331812359] [2024-11-28 04:45:40,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:40,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:40,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:40,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331812359] [2024-11-28 04:45:40,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331812359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:40,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978674249] [2024-11-28 04:45:40,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:40,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:40,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:40,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:40,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:45:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:40,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:45:40,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:41,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 04:45:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:41,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:41,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978674249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:41,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:41,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-28 04:45:41,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586091501] [2024-11-28 04:45:41,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:41,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:45:41,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:41,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:45:41,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:45:41,140 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-28 04:45:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:41,441 INFO L93 Difference]: Finished difference Result 162 states and 181 transitions. [2024-11-28 04:45:41,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:45:41,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 27 [2024-11-28 04:45:41,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:41,443 INFO L225 Difference]: With dead ends: 162 [2024-11-28 04:45:41,443 INFO L226 Difference]: Without dead ends: 142 [2024-11-28 04:45:41,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:45:41,444 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 11 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:41,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 482 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:45:41,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-28 04:45:41,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-11-28 04:45:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 109 states have (on average 1.4036697247706422) internal successors, (153), 140 states have internal predecessors, (153), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 161 transitions. [2024-11-28 04:45:41,451 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 161 transitions. Word has length 27 [2024-11-28 04:45:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:41,452 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 161 transitions. [2024-11-28 04:45:41,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2024-11-28 04:45:41,452 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 161 transitions. [2024-11-28 04:45:41,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 04:45:41,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:41,453 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:41,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:45:41,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:45:41,655 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:41,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1065998208, now seen corresponding path program 1 times [2024-11-28 04:45:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:41,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74886736] [2024-11-28 04:45:41,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:42,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:42,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74886736] [2024-11-28 04:45:42,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74886736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:42,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582561030] [2024-11-28 04:45:42,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:42,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:42,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:42,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:42,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:45:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:42,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:45:42,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:42,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:45:42,429 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:45:42,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:45:42,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:45:42,657 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:45:42,657 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 1 case distinctions, treesize of input 32 treesize of output 23 [2024-11-28 04:45:42,717 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:45:42,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32 [2024-11-28 04:45:42,847 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 24 treesize of output 12 [2024-11-28 04:45:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:42,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:43,082 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:43,082 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-11-28 04:45:43,095 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:43,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2024-11-28 04:45:43,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 18 [2024-11-28 04:45:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:43,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582561030] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:43,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:43,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 21 [2024-11-28 04:45:43,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33382395] [2024-11-28 04:45:43,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:43,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:45:43,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:43,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:45:43,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=349, Unknown=16, NotChecked=0, Total=420 [2024-11-28 04:45:43,373 INFO L87 Difference]: Start difference. First operand 142 states and 161 transitions. Second operand has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 21 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:44,485 INFO L93 Difference]: Finished difference Result 240 states and 275 transitions. [2024-11-28 04:45:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:45:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 21 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-28 04:45:44,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:44,490 INFO L225 Difference]: With dead ends: 240 [2024-11-28 04:45:44,490 INFO L226 Difference]: Without dead ends: 240 [2024-11-28 04:45:44,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=127, Invalid=612, Unknown=17, NotChecked=0, Total=756 [2024-11-28 04:45:44,491 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 731 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:44,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1040 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:45:44,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-11-28 04:45:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 157. [2024-11-28 04:45:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 124 states have (on average 1.3709677419354838) internal successors, (170), 155 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 178 transitions. [2024-11-28 04:45:44,502 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 178 transitions. Word has length 32 [2024-11-28 04:45:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:44,502 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 178 transitions. [2024-11-28 04:45:44,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.4285714285714284) internal successors, (72), 21 states have internal predecessors, (72), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 178 transitions. [2024-11-28 04:45:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 04:45:44,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:44,503 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:44,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:45:44,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:45:44,704 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:44,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:44,705 INFO L85 PathProgramCache]: Analyzing trace with hash 723948989, now seen corresponding path program 1 times [2024-11-28 04:45:44,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:44,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790756139] [2024-11-28 04:45:44,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:44,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:44,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:44,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:44,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790756139] [2024-11-28 04:45:44,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790756139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:44,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:44,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:45:44,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811589649] [2024-11-28 04:45:44,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:44,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:45:44,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:44,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:45:44,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:44,759 INFO L87 Difference]: Start difference. First operand 157 states and 178 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:44,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:44,801 INFO L93 Difference]: Finished difference Result 220 states and 247 transitions. [2024-11-28 04:45:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:45:44,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2024-11-28 04:45:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:44,803 INFO L225 Difference]: With dead ends: 220 [2024-11-28 04:45:44,803 INFO L226 Difference]: Without dead ends: 220 [2024-11-28 04:45:44,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:45:44,804 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 53 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:44,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 256 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:44,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-28 04:45:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 176. [2024-11-28 04:45:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 143 states have (on average 1.3216783216783217) internal successors, (189), 174 states have internal predecessors, (189), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 197 transitions. [2024-11-28 04:45:44,811 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 197 transitions. Word has length 33 [2024-11-28 04:45:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:44,812 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 197 transitions. [2024-11-28 04:45:44,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 197 transitions. [2024-11-28 04:45:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:45:44,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:44,813 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:44,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:45:44,813 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:44,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:44,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1125255652, now seen corresponding path program 1 times [2024-11-28 04:45:44,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:44,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521077534] [2024-11-28 04:45:44,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:44,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521077534] [2024-11-28 04:45:45,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521077534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936737298] [2024-11-28 04:45:45,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:45,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:45,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:45,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:45,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:45:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:45,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 04:45:45,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:45,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:45:45,642 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 04:45:45,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 04:45:45,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:45:45,873 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:45:45,874 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 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-28 04:45:45,921 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:45:45,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-28 04:45:46,123 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 25 treesize of output 13 [2024-11-28 04:45:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:46,271 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:46,437 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_417 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_417) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 1)) is different from false [2024-11-28 04:45:46,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:46,511 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2024-11-28 04:45:46,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:46,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 37 [2024-11-28 04:45:46,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 5 [2024-11-28 04:45:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:47,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936737298] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:47,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:47,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 27 [2024-11-28 04:45:47,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601050937] [2024-11-28 04:45:47,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:47,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:45:47,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:47,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:45:47,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=566, Unknown=17, NotChecked=50, Total=756 [2024-11-28 04:45:47,106 INFO L87 Difference]: Start difference. First operand 176 states and 197 transitions. Second operand has 28 states, 27 states have (on average 4.185185185185185) internal successors, (113), 28 states have internal predecessors, (113), 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) [2024-11-28 04:45:48,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:48,906 INFO L93 Difference]: Finished difference Result 301 states and 345 transitions. [2024-11-28 04:45:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:45:48,907 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.185185185185185) internal successors, (113), 28 states have internal predecessors, (113), 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 40 [2024-11-28 04:45:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:48,909 INFO L225 Difference]: With dead ends: 301 [2024-11-28 04:45:48,910 INFO L226 Difference]: Without dead ends: 301 [2024-11-28 04:45:48,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=293, Invalid=1097, Unknown=20, NotChecked=72, Total=1482 [2024-11-28 04:45:48,911 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 759 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 1522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 307 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:48,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1073 Invalid, 1522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1174 Invalid, 0 Unknown, 307 Unchecked, 1.3s Time] [2024-11-28 04:45:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-28 04:45:48,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 187. [2024-11-28 04:45:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 154 states have (on average 1.3246753246753247) internal successors, (204), 185 states have internal predecessors, (204), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:48,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 212 transitions. [2024-11-28 04:45:48,926 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 212 transitions. Word has length 40 [2024-11-28 04:45:48,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:48,927 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 212 transitions. [2024-11-28 04:45:48,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.185185185185185) internal successors, (113), 28 states have internal predecessors, (113), 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) [2024-11-28 04:45:48,927 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 212 transitions. [2024-11-28 04:45:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 04:45:48,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:48,928 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:48,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:45:49,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:45:49,129 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr47REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:45:49,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1125255651, now seen corresponding path program 1 times [2024-11-28 04:45:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:45:49,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217459338] [2024-11-28 04:45:49,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:49,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:45:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:49,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:49,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:45:49,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217459338] [2024-11-28 04:45:49,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217459338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:45:49,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319237413] [2024-11-28 04:45:49,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:49,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:45:49,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:49,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:45:49,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:45:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:50,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:45:50,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:50,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:45:50,186 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 [2024-11-28 04:45:50,192 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 [2024-11-28 04:45:50,421 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-28 04:45:50,422 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 1 case distinctions, treesize of input 21 treesize of output 24 [2024-11-28 04:45:50,463 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-28 04:45:50,464 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 1 case distinctions, treesize of input 19 treesize of output 18 [2024-11-28 04:45:50,625 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-28 04:45:50,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 33 [2024-11-28 04:45:50,641 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-28 04:45:50,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 21 [2024-11-28 04:45:51,509 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:45:51,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 20 [2024-11-28 04:45:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:51,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:45:52,296 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4))) (and (forall ((v_ArrVal_494 Int)) (< 0 (+ 5 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (forall ((v_ArrVal_493 (Array Int Int))) (or (not (= v_ArrVal_493 (store .cse2 .cse1 (select v_ArrVal_493 .cse1)))) (forall ((v_ArrVal_494 Int)) (let ((.cse3 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (or (< (+ 7 .cse3) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (= .cse3 0)))))) (forall ((v_ArrVal_493 (Array Int Int))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (or (forall ((v_ArrVal_494 Int)) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 8) (select |c_#length| .cse4))) (not (= v_ArrVal_493 (store .cse2 .cse1 (select v_ArrVal_493 .cse1)))) (= .cse4 0)))) (or (forall ((v_ArrVal_493 (Array Int Int))) (or (not (= v_ArrVal_493 (store .cse2 .cse1 (select v_ArrVal_493 .cse1)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) (forall ((v_ArrVal_494 Int)) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)))))) is different from false [2024-11-28 04:45:53,715 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 1442 treesize of output 1410 [2024-11-28 04:45:53,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:53,800 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 74 [2024-11-28 04:45:53,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:45:53,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:45:53,812 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:45:53,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:53,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 89 treesize of output 89 [2024-11-28 04:45:53,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2024-11-28 04:45:53,897 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:45:53,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 80 [2024-11-28 04:45:53,947 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:53,948 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 84 [2024-11-28 04:45:53,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:45:53,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:45:53,959 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:45:53,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:45:53,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 121 treesize of output 119 [2024-11-28 04:45:54,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 57 [2024-11-28 04:45:54,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2024-11-28 04:45:54,147 WARN L214 Elim1Store]: Array PQE input equivalent to true [2024-11-28 04:45:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:45:54,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319237413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:45:54,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:45:54,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2024-11-28 04:45:54,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448283917] [2024-11-28 04:45:54,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:45:54,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 04:45:54,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:45:54,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 04:45:54,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1168, Unknown=1, NotChecked=70, Total=1406 [2024-11-28 04:45:54,430 INFO L87 Difference]: Start difference. First operand 187 states and 212 transitions. Second operand has 38 states, 37 states have (on average 3.189189189189189) internal successors, (118), 38 states have internal predecessors, (118), 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) [2024-11-28 04:45:58,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:46:00,009 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~head~0#1.base|))) (let ((.cse4 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse3 (select |c_#length| (select .cse2 0))) (.cse5 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4)) (.cse8 (= |c_ULTIMATE.start_main_~head~0#1.base| |c_ULTIMATE.start_main_~item~0#1.base|))) (and (forall ((v_ArrVal_494 Int)) (< 0 (+ 5 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (= (select |c_#length| (select .cse2 |c_ULTIMATE.start_main_~head~0#1.offset|)) 8) (= |c_ULTIMATE.start_main_~head~0#1.offset| 0) (= (select .cse0 0) 0) (<= 8 .cse3) (= (select .cse4 0) 0) (forall ((v_ArrVal_493 (Array Int Int))) (or (not (= v_ArrVal_493 (store .cse5 .cse1 (select v_ArrVal_493 .cse1)))) (forall ((v_ArrVal_494 Int)) (let ((.cse6 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (or (< (+ 7 .cse6) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (= .cse6 0)))))) (forall ((v_ArrVal_493 (Array Int Int))) (let ((.cse7 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (or (forall ((v_ArrVal_494 Int)) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 8) (select |c_#length| .cse7))) (not (= v_ArrVal_493 (store .cse5 .cse1 (select v_ArrVal_493 .cse1)))) (= .cse7 0)))) (= (select .cse4 |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (= (select .cse5 0) 0) (or (= |c_ULTIMATE.start_main_~status~0#1| 0) (and (= (select |c_#length| |c_ULTIMATE.start_main_#t~mem19#1.base|) 8) (= 0 |c_ULTIMATE.start_main_#t~mem19#1.offset|))) (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_main_~head~0#1.base|) 1) (or (and (exists ((v_arrayElimCell_19 Int)) (<= 8 (select |c_#length| v_arrayElimCell_19))) .cse8) (< 7 .cse3)) (or (forall ((v_ArrVal_493 (Array Int Int))) (or (not (= v_ArrVal_493 (store .cse5 .cse1 (select v_ArrVal_493 .cse1)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) (forall ((v_ArrVal_494 Int)) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)))) (not .cse8)))) is different from false [2024-11-28 04:46:00,022 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse2 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~head~0#1.base|)) (.cse4 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse0 (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse1 (+ |c_ULTIMATE.start_main_~item~0#1.offset| 4)) (.cse7 (= |c_ULTIMATE.start_main_~head~0#1.base| |c_ULTIMATE.start_main_~item~0#1.base|))) (and (forall ((v_ArrVal_494 Int)) (< 0 (+ 5 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (= (select |c_#length| (select .cse2 |c_ULTIMATE.start_main_~head~0#1.offset|)) 8) (= |c_ULTIMATE.start_main_~head~0#1.offset| 0) (= (select .cse0 0) 0) (= (select .cse3 0) 0) (forall ((v_ArrVal_493 (Array Int Int))) (or (not (= v_ArrVal_493 (store .cse4 .cse1 (select v_ArrVal_493 .cse1)))) (forall ((v_ArrVal_494 Int)) (let ((.cse5 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (or (< (+ 7 .cse5) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (= .cse5 0)))))) (forall ((v_ArrVal_493 (Array Int Int))) (let ((.cse6 (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (or (forall ((v_ArrVal_494 Int)) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 8) (select |c_#length| .cse6))) (not (= v_ArrVal_493 (store .cse4 .cse1 (select v_ArrVal_493 .cse1)))) (= .cse6 0)))) (= (select .cse3 |c_ULTIMATE.start_main_~head~0#1.offset|) 0) (= (select .cse4 0) 0) (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (or (and (exists ((v_arrayElimCell_19 Int)) (<= 8 (select |c_#length| v_arrayElimCell_19))) .cse7) (< 7 (select |c_#length| (select .cse2 0)))) (or (forall ((v_ArrVal_493 (Array Int Int))) (or (not (= v_ArrVal_493 (store .cse4 .cse1 (select v_ArrVal_493 .cse1)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_493) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) (forall ((v_ArrVal_494 Int)) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 .cse1 v_ArrVal_494)) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4)))) (not .cse7))) is different from false [2024-11-28 04:46:04,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:04,528 INFO L93 Difference]: Finished difference Result 306 states and 351 transitions. [2024-11-28 04:46:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:46:04,529 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.189189189189189) internal successors, (118), 38 states have internal predecessors, (118), 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 40 [2024-11-28 04:46:04,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:04,530 INFO L225 Difference]: With dead ends: 306 [2024-11-28 04:46:04,530 INFO L226 Difference]: Without dead ends: 306 [2024-11-28 04:46:04,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=582, Invalid=2967, Unknown=3, NotChecked=354, Total=3906 [2024-11-28 04:46:04,532 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 837 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 2654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 378 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:04,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1915 Invalid, 2654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2213 Invalid, 1 Unknown, 378 Unchecked, 7.7s Time] [2024-11-28 04:46:04,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-28 04:46:04,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 191. [2024-11-28 04:46:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.3164556962025316) internal successors, (208), 189 states have internal predecessors, (208), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:04,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 216 transitions. [2024-11-28 04:46:04,541 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 216 transitions. Word has length 40 [2024-11-28 04:46:04,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:04,541 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 216 transitions. [2024-11-28 04:46:04,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.189189189189189) internal successors, (118), 38 states have internal predecessors, (118), 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) [2024-11-28 04:46:04,542 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 216 transitions. [2024-11-28 04:46:04,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:46:04,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:04,543 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:04,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:46:04,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:46:04,747 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:04,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash -272578807, now seen corresponding path program 1 times [2024-11-28 04:46:04,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:04,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302896059] [2024-11-28 04:46:04,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:04,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:46:04,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:04,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302896059] [2024-11-28 04:46:04,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302896059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:04,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:04,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:04,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512472062] [2024-11-28 04:46:04,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:04,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:04,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:04,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:04,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:04,816 INFO L87 Difference]: Start difference. First operand 191 states and 216 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:04,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:04,830 INFO L93 Difference]: Finished difference Result 192 states and 216 transitions. [2024-11-28 04:46:04,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:04,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2024-11-28 04:46:04,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:04,831 INFO L225 Difference]: With dead ends: 192 [2024-11-28 04:46:04,832 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 04:46:04,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:04,832 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:04,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:46:04,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 04:46:04,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-11-28 04:46:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 159 states have (on average 1.3081761006289307) internal successors, (208), 190 states have internal predecessors, (208), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:04,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 216 transitions. [2024-11-28 04:46:04,840 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 216 transitions. Word has length 43 [2024-11-28 04:46:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:04,841 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 216 transitions. [2024-11-28 04:46:04,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 216 transitions. [2024-11-28 04:46:04,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:46:04,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:04,842 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:04,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:46:04,842 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:04,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1559188494, now seen corresponding path program 1 times [2024-11-28 04:46:04,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:04,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301374962] [2024-11-28 04:46:04,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:04,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:05,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:05,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301374962] [2024-11-28 04:46:05,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301374962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:05,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648708532] [2024-11-28 04:46:05,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:05,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:05,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:05,916 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:05,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:46:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:06,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 04:46:06,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:06,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:06,148 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:46:06,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:46:06,191 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 [2024-11-28 04:46:06,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:46:06,333 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 04:46:06,333 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-28 04:46:06,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-28 04:46:06,361 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:46:06,361 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 1 case distinctions, treesize of input 24 treesize of output 17 [2024-11-28 04:46:06,423 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:46:06,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 59 [2024-11-28 04:46:06,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-28 04:46:06,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2024-11-28 04:46:06,573 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 33 treesize of output 21 [2024-11-28 04:46:06,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2024-11-28 04:46:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:06,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:06,846 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 69 treesize of output 49 [2024-11-28 04:46:06,857 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_607 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_607) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~item~0#1.offset|)) (forall ((v_ArrVal_605 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_605) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~item~0#1.base|))) is different from false [2024-11-28 04:46:06,886 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_605 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem4#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_605) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (forall ((v_ArrVal_607 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem4#1.offset| (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_607) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2024-11-28 04:46:07,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:07,008 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2024-11-28 04:46:07,022 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:07,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 33 [2024-11-28 04:46:07,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5 treesize of output 3 [2024-11-28 04:46:07,055 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-28 04:46:07,055 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 1 [2024-11-28 04:46:07,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:07,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648708532] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:07,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:07,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 35 [2024-11-28 04:46:07,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139148323] [2024-11-28 04:46:07,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:07,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-28 04:46:07,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:07,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-28 04:46:07,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=944, Unknown=10, NotChecked=126, Total=1190 [2024-11-28 04:46:07,197 INFO L87 Difference]: Start difference. First operand 192 states and 216 transitions. Second operand has 35 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 35 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:09,290 INFO L93 Difference]: Finished difference Result 308 states and 348 transitions. [2024-11-28 04:46:09,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:46:09,291 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 35 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-28 04:46:09,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:09,292 INFO L225 Difference]: With dead ends: 308 [2024-11-28 04:46:09,292 INFO L226 Difference]: Without dead ends: 308 [2024-11-28 04:46:09,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=347, Invalid=2101, Unknown=10, NotChecked=194, Total=2652 [2024-11-28 04:46:09,294 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 1072 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 600 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:09,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 1396 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1236 Invalid, 0 Unknown, 600 Unchecked, 1.1s Time] [2024-11-28 04:46:09,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-28 04:46:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 191. [2024-11-28 04:46:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 158 states have (on average 1.3037974683544304) internal successors, (206), 189 states have internal predecessors, (206), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 214 transitions. [2024-11-28 04:46:09,302 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 214 transitions. Word has length 45 [2024-11-28 04:46:09,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:09,302 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 214 transitions. [2024-11-28 04:46:09,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.5142857142857142) internal successors, (123), 35 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 214 transitions. [2024-11-28 04:46:09,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:46:09,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:09,303 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:09,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:46:09,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:09,504 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:09,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:09,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1172087768, now seen corresponding path program 1 times [2024-11-28 04:46:09,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:09,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014431448] [2024-11-28 04:46:09,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:09,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 04:46:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:09,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014431448] [2024-11-28 04:46:09,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014431448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:46:09,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:46:09,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:46:09,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828875081] [2024-11-28 04:46:09,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:46:09,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:46:09,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:09,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:46:09,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:09,582 INFO L87 Difference]: Start difference. First operand 191 states and 214 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:09,627 INFO L93 Difference]: Finished difference Result 255 states and 284 transitions. [2024-11-28 04:46:09,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:46:09,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-28 04:46:09,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:09,629 INFO L225 Difference]: With dead ends: 255 [2024-11-28 04:46:09,629 INFO L226 Difference]: Without dead ends: 255 [2024-11-28 04:46:09,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:46:09,630 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 61 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:09,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 295 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:46:09,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-28 04:46:09,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 210. [2024-11-28 04:46:09,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 177 states have (on average 1.2768361581920904) internal successors, (226), 208 states have internal predecessors, (226), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:09,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 234 transitions. [2024-11-28 04:46:09,637 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 234 transitions. Word has length 48 [2024-11-28 04:46:09,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:09,638 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 234 transitions. [2024-11-28 04:46:09,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:09,638 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 234 transitions. [2024-11-28 04:46:09,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:46:09,639 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:09,639 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:09,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:46:09,639 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:09,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:09,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1017136743, now seen corresponding path program 1 times [2024-11-28 04:46:09,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:09,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92981693] [2024-11-28 04:46:09,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:10,161 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:10,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:10,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92981693] [2024-11-28 04:46:10,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92981693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:10,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294101595] [2024-11-28 04:46:10,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:10,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:10,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:10,164 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:10,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:46:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:10,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 04:46:10,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:10,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:10,395 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-28 04:46:10,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 04:46:10,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:46:10,628 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:46:10,629 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 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-28 04:46:10,669 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:46:10,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2024-11-28 04:46:10,951 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 25 treesize of output 13 [2024-11-28 04:46:11,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2024-11-28 04:46:11,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:11,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:11,335 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_737 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_737) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 1)) (forall ((v_ArrVal_737 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_737) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~head~0#1.base|)))) is different from false [2024-11-28 04:46:11,346 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (and (forall ((v_ArrVal_737 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_737) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) 1)) (forall ((v_ArrVal_737 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_737) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) |c_ULTIMATE.start_main_~head~0#1.base|))))) is different from false [2024-11-28 04:46:11,362 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:11,362 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20 [2024-11-28 04:46:11,376 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:11,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 36 [2024-11-28 04:46:11,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 20 treesize of output 18 [2024-11-28 04:46:11,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:11,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21 [2024-11-28 04:46:11,410 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:11,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-28 04:46:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:11,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294101595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:11,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:11,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 26 [2024-11-28 04:46:11,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862175248] [2024-11-28 04:46:11,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:11,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:46:11,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:11,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:46:11,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=499, Unknown=6, NotChecked=94, Total=702 [2024-11-28 04:46:11,572 INFO L87 Difference]: Start difference. First operand 210 states and 234 transitions. Second operand has 27 states, 26 states have (on average 4.0) internal successors, (104), 27 states have internal predecessors, (104), 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) [2024-11-28 04:46:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:12,518 INFO L93 Difference]: Finished difference Result 246 states and 277 transitions. [2024-11-28 04:46:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:46:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.0) internal successors, (104), 27 states have internal predecessors, (104), 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 47 [2024-11-28 04:46:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:12,520 INFO L225 Difference]: With dead ends: 246 [2024-11-28 04:46:12,520 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:46:12,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=103, Invalid=499, Unknown=6, NotChecked=94, Total=702 [2024-11-28 04:46:12,521 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 331 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 401 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:12,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1076 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 919 Invalid, 0 Unknown, 401 Unchecked, 0.9s Time] [2024-11-28 04:46:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:46:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 235. [2024-11-28 04:46:12,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 202 states have (on average 1.297029702970297) internal successors, (262), 233 states have internal predecessors, (262), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 270 transitions. [2024-11-28 04:46:12,529 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 270 transitions. Word has length 47 [2024-11-28 04:46:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:12,530 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 270 transitions. [2024-11-28 04:46:12,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.0) internal successors, (104), 27 states have internal predecessors, (104), 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) [2024-11-28 04:46:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 270 transitions. [2024-11-28 04:46:12,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:46:12,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:12,531 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:12,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:46:12,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:46:12,732 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr51REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:12,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:12,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1017136742, now seen corresponding path program 1 times [2024-11-28 04:46:12,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:12,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253886003] [2024-11-28 04:46:12,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:12,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:13,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:13,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253886003] [2024-11-28 04:46:13,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253886003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:13,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560118405] [2024-11-28 04:46:13,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:13,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:13,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:13,314 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:13,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:46:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:13,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:46:13,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:13,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:13,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-28 04:46:13,535 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:46:13,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:46:13,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:46:13,607 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 [2024-11-28 04:46:13,745 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:46:13,745 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 1 case distinctions, treesize of input 33 treesize of output 24 [2024-11-28 04:46:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:46:13,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-28 04:46:13,785 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-28 04:46:13,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-28 04:46:13,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-28 04:46:14,021 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 25 treesize of output 13 [2024-11-28 04:46:14,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-28 04:46:14,127 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:14,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:14,556 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_818 (Array Int Int)) (v_ArrVal_817 (Array Int Int))) (<= (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_818) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_817) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) (forall ((v_ArrVal_818 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_818) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))) is different from false [2024-11-28 04:46:14,571 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|))) (and (forall ((v_ArrVal_818 (Array Int Int))) (<= 0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_818) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|))) (forall ((v_ArrVal_818 (Array Int Int)) (v_ArrVal_817 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_818) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 4) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_817) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|)))))) is different from false [2024-11-28 04:46:14,593 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:14,593 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38 [2024-11-28 04:46:14,602 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:14,602 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2024-11-28 04:46:14,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:14,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 55 [2024-11-28 04:46:14,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:14,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 81 [2024-11-28 04:46:14,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 9 [2024-11-28 04:46:14,679 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 7 [2024-11-28 04:46:14,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:14,689 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2024-11-28 04:46:14,693 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:46:14,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-28 04:46:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:14,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560118405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:14,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:14,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2024-11-28 04:46:14,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241560791] [2024-11-28 04:46:14,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:14,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:46:14,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:14,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:46:14,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=522, Unknown=5, NotChecked=94, Total=702 [2024-11-28 04:46:14,897 INFO L87 Difference]: Start difference. First operand 235 states and 270 transitions. Second operand has 27 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 27 states have internal predecessors, (135), 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) [2024-11-28 04:46:16,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:16,032 INFO L93 Difference]: Finished difference Result 246 states and 276 transitions. [2024-11-28 04:46:16,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:46:16,033 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 27 states have internal predecessors, (135), 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 47 [2024-11-28 04:46:16,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:16,034 INFO L225 Difference]: With dead ends: 246 [2024-11-28 04:46:16,034 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 04:46:16,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=169, Invalid=826, Unknown=5, NotChecked=122, Total=1122 [2024-11-28 04:46:16,037 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 728 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 401 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:16,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 807 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 867 Invalid, 0 Unknown, 401 Unchecked, 0.8s Time] [2024-11-28 04:46:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 04:46:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 235. [2024-11-28 04:46:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 202 states have (on average 1.2920792079207921) internal successors, (261), 233 states have internal predecessors, (261), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 269 transitions. [2024-11-28 04:46:16,045 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 269 transitions. Word has length 47 [2024-11-28 04:46:16,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:16,045 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 269 transitions. [2024-11-28 04:46:16,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 27 states have internal predecessors, (135), 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) [2024-11-28 04:46:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 269 transitions. [2024-11-28 04:46:16,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:46:16,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:16,047 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:16,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:16,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:46:16,251 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:16,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:16,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1017134373, now seen corresponding path program 1 times [2024-11-28 04:46:16,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:16,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450572652] [2024-11-28 04:46:16,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:16,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:46:16,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:16,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450572652] [2024-11-28 04:46:16,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450572652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:16,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886499117] [2024-11-28 04:46:16,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:16,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:16,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:16,398 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:16,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:46:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:16,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:46:16,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:16,690 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 25 treesize of output 17 [2024-11-28 04:46:16,693 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 21 treesize of output 13 [2024-11-28 04:46:16,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:46:16,716 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:16,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:46:16,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886499117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:16,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:16,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 12 [2024-11-28 04:46:16,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465667178] [2024-11-28 04:46:16,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:16,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:46:16,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:16,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:46:16,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:46:16,878 INFO L87 Difference]: Start difference. First operand 235 states and 269 transitions. Second operand has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 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) [2024-11-28 04:46:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:17,539 INFO L93 Difference]: Finished difference Result 267 states and 308 transitions. [2024-11-28 04:46:17,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:46:17,540 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 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 47 [2024-11-28 04:46:17,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:17,541 INFO L225 Difference]: With dead ends: 267 [2024-11-28 04:46:17,542 INFO L226 Difference]: Without dead ends: 267 [2024-11-28 04:46:17,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:46:17,543 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 180 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:17,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 919 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:46:17,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2024-11-28 04:46:17,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 251. [2024-11-28 04:46:17,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 218 states have (on average 1.2660550458715596) internal successors, (276), 249 states have internal predecessors, (276), 8 states have call successors, (8), 1 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 284 transitions. [2024-11-28 04:46:17,551 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 284 transitions. Word has length 47 [2024-11-28 04:46:17,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:17,551 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 284 transitions. [2024-11-28 04:46:17,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 12 states have internal predecessors, (59), 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) [2024-11-28 04:46:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 284 transitions. [2024-11-28 04:46:17,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:46:17,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:17,552 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:17,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:46:17,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:46:17,753 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:17,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:17,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1385137509, now seen corresponding path program 1 times [2024-11-28 04:46:17,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:17,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927050028] [2024-11-28 04:46:17,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:17,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:18,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927050028] [2024-11-28 04:46:18,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927050028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:18,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983986219] [2024-11-28 04:46:18,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:18,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:18,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:18,600 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:18,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:46:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:18,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 04:46:18,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:18,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:18,851 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:46:18,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:46:18,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 04:46:19,096 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:46:19,097 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 1 case distinctions, treesize of input 32 treesize of output 23 [2024-11-28 04:46:19,138 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-28 04:46:19,138 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 1 case distinctions, treesize of input 32 treesize of output 23 [2024-11-28 04:46:19,248 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-28 04:46:19,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-28 04:46:19,320 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-28 04:46:19,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 19 [2024-11-28 04:46:19,555 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-28 04:46:19,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 43 [2024-11-28 04:46:19,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 8 [2024-11-28 04:46:19,693 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-28 04:46:19,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 50 [2024-11-28 04:46:19,805 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 24 treesize of output 12 [2024-11-28 04:46:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:19,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:19,925 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1005 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem4#1.base| v_ArrVal_1005) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2024-11-28 04:46:19,932 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1005 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset|) v_ArrVal_1005) |c_ULTIMATE.start_main_~head~0#1.base|) |c_ULTIMATE.start_main_~head~0#1.offset|) 0))) is different from false [2024-11-28 04:46:20,183 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:20,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2024-11-28 04:46:20,422 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:20,422 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 25 [2024-11-28 04:46:20,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:20,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 76 [2024-11-28 04:46:20,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:20,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 65 [2024-11-28 04:46:20,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 50 treesize of output 46 [2024-11-28 04:46:20,472 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-28 04:46:20,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2024-11-28 04:46:20,750 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2024-11-28 04:46:20,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983986219] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:46:20,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:46:20,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 37 [2024-11-28 04:46:20,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832891346] [2024-11-28 04:46:20,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:46:20,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 04:46:20,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:46:20,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 04:46:20,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1021, Unknown=29, NotChecked=134, Total=1332 [2024-11-28 04:46:20,753 INFO L87 Difference]: Start difference. First operand 251 states and 284 transitions. Second operand has 37 states, 37 states have (on average 3.189189189189189) internal successors, (118), 37 states have internal predecessors, (118), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:46:23,642 INFO L93 Difference]: Finished difference Result 289 states and 323 transitions. [2024-11-28 04:46:23,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:46:23,643 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.189189189189189) internal successors, (118), 37 states have internal predecessors, (118), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-28 04:46:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:46:23,644 INFO L225 Difference]: With dead ends: 289 [2024-11-28 04:46:23,644 INFO L226 Difference]: Without dead ends: 289 [2024-11-28 04:46:23,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=546, Invalid=2855, Unknown=29, NotChecked=230, Total=3660 [2024-11-28 04:46:23,646 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 956 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 87 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 430 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:46:23,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 1386 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1522 Invalid, 1 Unknown, 430 Unchecked, 1.5s Time] [2024-11-28 04:46:23,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2024-11-28 04:46:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 250. [2024-11-28 04:46:23,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 218 states have (on average 1.261467889908257) internal successors, (275), 248 states have internal predecessors, (275), 7 states have call successors, (7), 1 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:23,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 282 transitions. [2024-11-28 04:46:23,653 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 282 transitions. Word has length 49 [2024-11-28 04:46:23,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:46:23,654 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 282 transitions. [2024-11-28 04:46:23,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.189189189189189) internal successors, (118), 37 states have internal predecessors, (118), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:46:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 282 transitions. [2024-11-28 04:46:23,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-28 04:46:23,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:46:23,655 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:46:23,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:46:23,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:23,856 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 54 more)] === [2024-11-28 04:46:23,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:46:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1385012895, now seen corresponding path program 1 times [2024-11-28 04:46:23,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:46:23,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192745456] [2024-11-28 04:46:23,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:23,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:46:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:24,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:46:24,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192745456] [2024-11-28 04:46:24,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192745456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:46:24,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159572237] [2024-11-28 04:46:24,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:46:24,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:46:24,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:46:24,559 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:46:24,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f50d0a06-0391-4a24-929a-b6c715cf5232/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:46:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:46:24,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 04:46:24,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:46:24,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:46:24,912 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 [2024-11-28 04:46:24,922 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 [2024-11-28 04:46:25,010 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 [2024-11-28 04:46:25,157 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 04:46:25,157 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 1 case distinctions, treesize of input 25 treesize of output 22 [2024-11-28 04:46:25,173 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 9 [2024-11-28 04:46:25,263 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-28 04:46:25,263 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 1 case distinctions, treesize of input 20 treesize of output 19 [2024-11-28 04:46:25,461 INFO L349 Elim1Store]: treesize reduction 48, result has 28.4 percent of original size [2024-11-28 04:46:25,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 24 treesize of output 28 [2024-11-28 04:46:25,574 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2024-11-28 04:46:25,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 19 [2024-11-28 04:46:25,870 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-28 04:46:25,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 52 [2024-11-28 04:46:25,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 8 [2024-11-28 04:46:26,051 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-28 04:46:26,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 52 [2024-11-28 04:46:26,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 8 [2024-11-28 04:46:26,266 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 25 treesize of output 13 [2024-11-28 04:46:26,305 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:46:26,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:26,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:26,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2024-11-28 04:46:27,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:27,020 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 31 [2024-11-28 04:46:27,033 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:27,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 96 treesize of output 99 [2024-11-28 04:46:27,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:27,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 80 [2024-11-28 04:46:27,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 66 treesize of output 62 [2024-11-28 04:46:54,264 WARN L286 SmtUtils]: Spent 26.39s on a formula simplification that was a NOOP. DAG size: 2313 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-28 04:46:54,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:46:54,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 0 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 561 case distinctions, treesize of input 710 treesize of output 5130