./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9fd228108b00a337c799c923821cefd2f3f25ea1b43eb489705884efe2b6ca03 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 00:44:19,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 00:44:19,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 00:44:19,649 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 00:44:19,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 00:44:19,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 00:44:19,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 00:44:19,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 00:44:19,668 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 00:44:19,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 00:44:19,668 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 00:44:19,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 00:44:19,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 00:44:19,670 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 00:44:19,671 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 00:44:19,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:44:19,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 00:44:19,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 00:44:19,672 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 9fd228108b00a337c799c923821cefd2f3f25ea1b43eb489705884efe2b6ca03 [2025-03-09 00:44:19,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 00:44:19,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 00:44:19,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 00:44:19,924 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 00:44:19,924 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 00:44:19,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i [2025-03-09 00:44:21,058 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17bafff83/a6903747e7234c6fb33e00561a63da77/FLAGefbc77215 [2025-03-09 00:44:21,380 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 00:44:21,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test5-1.i [2025-03-09 00:44:21,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17bafff83/a6903747e7234c6fb33e00561a63da77/FLAGefbc77215 [2025-03-09 00:44:21,625 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17bafff83/a6903747e7234c6fb33e00561a63da77 [2025-03-09 00:44:21,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 00:44:21,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 00:44:21,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 00:44:21,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 00:44:21,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 00:44:21,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:44:21" (1/1) ... [2025-03-09 00:44:21,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@655b42f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:21, skipping insertion in model container [2025-03-09 00:44:21,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 12:44:21" (1/1) ... [2025-03-09 00:44:21,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 00:44:21,993 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,017 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,020 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,025 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,029 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,058 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,060 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,062 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,066 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,083 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,084 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,085 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,086 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 00:44:22,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:44:22,106 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 00:44:22,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 00:44:22,207 INFO L204 MainTranslator]: Completed translation [2025-03-09 00:44:22,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22 WrapperNode [2025-03-09 00:44:22,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 00:44:22,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 00:44:22,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 00:44:22,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 00:44:22,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,232 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,283 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1990 [2025-03-09 00:44:22,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 00:44:22,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 00:44:22,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 00:44:22,285 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 00:44:22,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,387 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 24, 323]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 83 writes are split as follows [0, 1, 82]. [2025-03-09 00:44:22,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,429 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 00:44:22,457 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 00:44:22,458 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 00:44:22,458 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 00:44:22,458 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (1/1) ... [2025-03-09 00:44:22,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 00:44:22,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:44:22,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 00:44:22,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2025-03-09 00:44:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 00:44:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-09 00:44:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-09 00:44:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-09 00:44:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 00:44:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 00:44:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 00:44:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 00:44:22,719 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 00:44:22,721 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 00:44:24,825 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2025-03-09 00:44:24,953 INFO L? ?]: Removed 1734 outVars from TransFormulas that were not future-live. [2025-03-09 00:44:24,953 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 00:44:25,031 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 00:44:25,032 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2025-03-09 00:44:25,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:44:25 BoogieIcfgContainer [2025-03-09 00:44:25,032 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 00:44:25,037 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 00:44:25,037 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 00:44:25,041 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 00:44:25,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 12:44:21" (1/3) ... [2025-03-09 00:44:25,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64653f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 12:44:25, skipping insertion in model container [2025-03-09 00:44:25,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 12:44:22" (2/3) ... [2025-03-09 00:44:25,042 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64653f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 12:44:25, skipping insertion in model container [2025-03-09 00:44:25,042 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 12:44:25" (3/3) ... [2025-03-09 00:44:25,042 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test5-1.i [2025-03-09 00:44:25,053 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 00:44:25,056 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test5-1.i that has 6 procedures, 1738 locations, 1 initial locations, 46 loop locations, and 712 error locations. [2025-03-09 00:44:25,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 00:44:25,115 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;@a4108b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 00:44:25,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2025-03-09 00:44:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 1728 states, 1005 states have (on average 2.03681592039801) internal successors, (2047), 1718 states have internal predecessors, (2047), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-09 00:44:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:44:25,127 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:25,128 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:44:25,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr709REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:25,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:25,132 INFO L85 PathProgramCache]: Analyzing trace with hash 2071764313, now seen corresponding path program 1 times [2025-03-09 00:44:25,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:25,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171322382] [2025-03-09 00:44:25,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:25,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:25,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:44:25,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:44:25,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:25,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:25,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:25,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171322382] [2025-03-09 00:44:25,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171322382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:25,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:25,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:44:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136491892] [2025-03-09 00:44:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:25,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 00:44:25,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:25,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 00:44:25,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 00:44:25,277 INFO L87 Difference]: Start difference. First operand has 1728 states, 1005 states have (on average 2.03681592039801) internal successors, (2047), 1718 states have internal predecessors, (2047), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-03-09 00:44:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:25,397 INFO L93 Difference]: Finished difference Result 1708 states and 1968 transitions. [2025-03-09 00:44:25,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 00:44:25,398 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2025-03-09 00:44:25,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:25,411 INFO L225 Difference]: With dead ends: 1708 [2025-03-09 00:44:25,412 INFO L226 Difference]: Without dead ends: 1706 [2025-03-09 00:44:25,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 00:44:25,414 INFO L435 NwaCegarLoop]: 1905 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:25,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1905 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:44:25,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2025-03-09 00:44:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2025-03-09 00:44:25,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 995 states have (on average 1.9517587939698493) internal successors, (1942), 1696 states have internal predecessors, (1942), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 1966 transitions. [2025-03-09 00:44:25,493 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 1966 transitions. Word has length 5 [2025-03-09 00:44:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:25,493 INFO L471 AbstractCegarLoop]: Abstraction has 1706 states and 1966 transitions. [2025-03-09 00:44:25,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2025-03-09 00:44:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 1966 transitions. [2025-03-09 00:44:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:44:25,494 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:25,494 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:44:25,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 00:44:25,494 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr709REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:25,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:25,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2071764344, now seen corresponding path program 1 times [2025-03-09 00:44:25,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:25,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495406204] [2025-03-09 00:44:25,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:25,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:25,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:44:25,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:44:25,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:25,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:25,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495406204] [2025-03-09 00:44:25,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495406204] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:25,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:25,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:44:25,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570933655] [2025-03-09 00:44:25,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:25,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:44:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:25,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:44:25,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:44:25,566 INFO L87 Difference]: Start difference. First operand 1706 states and 1966 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-09 00:44:26,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:26,576 INFO L93 Difference]: Finished difference Result 1931 states and 2279 transitions. [2025-03-09 00:44:26,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:44:26,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-03-09 00:44:26,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:26,585 INFO L225 Difference]: With dead ends: 1931 [2025-03-09 00:44:26,585 INFO L226 Difference]: Without dead ends: 1931 [2025-03-09 00:44:26,587 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 [2025-03-09 00:44:26,589 INFO L435 NwaCegarLoop]: 1493 mSDtfsCounter, 1727 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 1798 SdHoareTripleChecker+Invalid, 1107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:26,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 1798 Invalid, 1107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-09 00:44:26,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2025-03-09 00:44:26,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1614. [2025-03-09 00:44:26,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 995 states have (on average 1.8592964824120604) internal successors, (1850), 1604 states have internal predecessors, (1850), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1874 transitions. [2025-03-09 00:44:26,630 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1874 transitions. Word has length 5 [2025-03-09 00:44:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:26,630 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 1874 transitions. [2025-03-09 00:44:26,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-09 00:44:26,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1874 transitions. [2025-03-09 00:44:26,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:44:26,632 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:26,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:44:26,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 00:44:26,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr710REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:26,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:26,634 INFO L85 PathProgramCache]: Analyzing trace with hash 2071764345, now seen corresponding path program 1 times [2025-03-09 00:44:26,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:26,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708405938] [2025-03-09 00:44:26,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:26,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:26,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:44:26,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:44:26,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:26,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708405938] [2025-03-09 00:44:26,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708405938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:26,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:26,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 00:44:26,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853856043] [2025-03-09 00:44:26,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:26,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:44:26,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:26,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:44:26,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:44:26,753 INFO L87 Difference]: Start difference. First operand 1614 states and 1874 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-09 00:44:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:27,763 INFO L93 Difference]: Finished difference Result 2345 states and 2769 transitions. [2025-03-09 00:44:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:44:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-03-09 00:44:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:27,771 INFO L225 Difference]: With dead ends: 2345 [2025-03-09 00:44:27,771 INFO L226 Difference]: Without dead ends: 2345 [2025-03-09 00:44:27,771 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 [2025-03-09 00:44:27,772 INFO L435 NwaCegarLoop]: 1858 mSDtfsCounter, 1209 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:27,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 2740 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-09 00:44:27,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2025-03-09 00:44:27,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1875. [2025-03-09 00:44:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1266 states have (on average 1.8341232227488151) internal successors, (2322), 1865 states have internal predecessors, (2322), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:27,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2346 transitions. [2025-03-09 00:44:27,842 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2346 transitions. Word has length 5 [2025-03-09 00:44:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:27,842 INFO L471 AbstractCegarLoop]: Abstraction has 1875 states and 2346 transitions. [2025-03-09 00:44:27,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-09 00:44:27,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2346 transitions. [2025-03-09 00:44:27,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 00:44:27,842 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:27,842 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 00:44:27,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 00:44:27,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:27,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:27,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2070097592, now seen corresponding path program 1 times [2025-03-09 00:44:27,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:27,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23058985] [2025-03-09 00:44:27,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:27,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:27,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 00:44:27,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 00:44:27,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:27,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:27,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:27,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23058985] [2025-03-09 00:44:27,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23058985] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:27,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:27,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:44:27,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582243479] [2025-03-09 00:44:27,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:27,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:44:27,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:27,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:44:27,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:44:27,895 INFO L87 Difference]: Start difference. First operand 1875 states and 2346 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-09 00:44:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:28,064 INFO L93 Difference]: Finished difference Result 3733 states and 4675 transitions. [2025-03-09 00:44:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:44:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-03-09 00:44:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:28,078 INFO L225 Difference]: With dead ends: 3733 [2025-03-09 00:44:28,078 INFO L226 Difference]: Without dead ends: 3733 [2025-03-09 00:44:28,078 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 [2025-03-09 00:44:28,080 INFO L435 NwaCegarLoop]: 2077 mSDtfsCounter, 1822 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 3869 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:28,080 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 3869 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:44:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3733 states. [2025-03-09 00:44:28,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3733 to 1877. [2025-03-09 00:44:28,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1268 states have (on average 1.832807570977918) internal successors, (2324), 1867 states have internal predecessors, (2324), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2348 transitions. [2025-03-09 00:44:28,117 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2348 transitions. Word has length 5 [2025-03-09 00:44:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:28,117 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2348 transitions. [2025-03-09 00:44:28,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-03-09 00:44:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2348 transitions. [2025-03-09 00:44:28,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-09 00:44:28,118 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:28,118 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:28,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 00:44:28,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr705REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:28,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2133056567, now seen corresponding path program 1 times [2025-03-09 00:44:28,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:28,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469130494] [2025-03-09 00:44:28,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:28,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:28,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 00:44:28,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 00:44:28,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:28,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:28,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:28,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:28,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469130494] [2025-03-09 00:44:28,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469130494] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:28,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:28,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:44:28,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239709778] [2025-03-09 00:44:28,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:28,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:44:28,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:28,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:44:28,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:44:28,179 INFO L87 Difference]: Start difference. First operand 1877 states and 2348 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:44:29,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:29,160 INFO L93 Difference]: Finished difference Result 1903 states and 2401 transitions. [2025-03-09 00:44:29,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:44:29,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-09 00:44:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:29,166 INFO L225 Difference]: With dead ends: 1903 [2025-03-09 00:44:29,166 INFO L226 Difference]: Without dead ends: 1903 [2025-03-09 00:44:29,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:44:29,168 INFO L435 NwaCegarLoop]: 1087 mSDtfsCounter, 1995 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 1615 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:29,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2006 Valid, 2040 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1615 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-09 00:44:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2025-03-09 00:44:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 1854. [2025-03-09 00:44:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1854 states, 1268 states have (on average 1.8146687697160884) internal successors, (2301), 1844 states have internal predecessors, (2301), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:29,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2325 transitions. [2025-03-09 00:44:29,194 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2325 transitions. Word has length 10 [2025-03-09 00:44:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:29,194 INFO L471 AbstractCegarLoop]: Abstraction has 1854 states and 2325 transitions. [2025-03-09 00:44:29,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:44:29,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2325 transitions. [2025-03-09 00:44:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-09 00:44:29,194 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:29,194 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:29,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 00:44:29,195 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr706REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:29,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2133056568, now seen corresponding path program 1 times [2025-03-09 00:44:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:29,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817973534] [2025-03-09 00:44:29,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:29,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:29,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 00:44:29,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 00:44:29,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:29,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:29,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:29,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:29,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817973534] [2025-03-09 00:44:29,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817973534] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:29,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:29,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:44:29,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437834754] [2025-03-09 00:44:29,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:29,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:44:29,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:29,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:44:29,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:44:29,272 INFO L87 Difference]: Start difference. First operand 1854 states and 2325 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:44:29,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:29,361 INFO L93 Difference]: Finished difference Result 1779 states and 2222 transitions. [2025-03-09 00:44:29,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:44:29,361 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-09 00:44:29,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:29,366 INFO L225 Difference]: With dead ends: 1779 [2025-03-09 00:44:29,366 INFO L226 Difference]: Without dead ends: 1779 [2025-03-09 00:44:29,366 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 [2025-03-09 00:44:29,366 INFO L435 NwaCegarLoop]: 1673 mSDtfsCounter, 60 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 3293 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:29,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 3293 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:44:29,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2025-03-09 00:44:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1779. [2025-03-09 00:44:29,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1205 states have (on average 1.8240663900414937) internal successors, (2198), 1769 states have internal predecessors, (2198), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:29,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2222 transitions. [2025-03-09 00:44:29,388 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2222 transitions. Word has length 10 [2025-03-09 00:44:29,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:29,388 INFO L471 AbstractCegarLoop]: Abstraction has 1779 states and 2222 transitions. [2025-03-09 00:44:29,389 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), 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) [2025-03-09 00:44:29,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2222 transitions. [2025-03-09 00:44:29,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-09 00:44:29,389 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:29,389 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:29,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 00:44:29,389 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr682REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:29,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:29,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1700121141, now seen corresponding path program 1 times [2025-03-09 00:44:29,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:29,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902513642] [2025-03-09 00:44:29,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:29,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:29,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-09 00:44:29,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-09 00:44:29,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:29,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:29,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902513642] [2025-03-09 00:44:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902513642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:29,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:29,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:44:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235324525] [2025-03-09 00:44:29,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:29,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:44:29,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:29,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:44:29,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:44:29,436 INFO L87 Difference]: Start difference. First operand 1779 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-03-09 00:44:29,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:29,567 INFO L93 Difference]: Finished difference Result 1761 states and 2197 transitions. [2025-03-09 00:44:29,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:44:29,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2025-03-09 00:44:29,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:29,572 INFO L225 Difference]: With dead ends: 1761 [2025-03-09 00:44:29,572 INFO L226 Difference]: Without dead ends: 1761 [2025-03-09 00:44:29,572 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 [2025-03-09 00:44:29,573 INFO L435 NwaCegarLoop]: 1638 mSDtfsCounter, 41 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 4886 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:29,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 4886 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:44:29,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2025-03-09 00:44:29,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1758. [2025-03-09 00:44:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1191 states have (on average 1.8219983207388748) internal successors, (2170), 1748 states have internal predecessors, (2170), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:29,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2194 transitions. [2025-03-09 00:44:29,598 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2194 transitions. Word has length 11 [2025-03-09 00:44:29,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:29,598 INFO L471 AbstractCegarLoop]: Abstraction has 1758 states and 2194 transitions. [2025-03-09 00:44:29,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2025-03-09 00:44:29,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2194 transitions. [2025-03-09 00:44:29,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 00:44:29,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:29,599 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] [2025-03-09 00:44:29,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 00:44:29,599 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr668REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:29,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash 282939723, now seen corresponding path program 1 times [2025-03-09 00:44:29,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:29,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992103970] [2025-03-09 00:44:29,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:29,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 00:44:29,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 00:44:29,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:29,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:29,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:29,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:29,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992103970] [2025-03-09 00:44:29,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992103970] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:29,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:29,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:44:29,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058900538] [2025-03-09 00:44:29,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:29,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:44:29,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:29,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:44:29,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:44:29,779 INFO L87 Difference]: Start difference. First operand 1758 states and 2194 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2025-03-09 00:44:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:30,982 INFO L93 Difference]: Finished difference Result 2274 states and 2690 transitions. [2025-03-09 00:44:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 00:44:30,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2025-03-09 00:44:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:30,990 INFO L225 Difference]: With dead ends: 2274 [2025-03-09 00:44:30,990 INFO L226 Difference]: Without dead ends: 2274 [2025-03-09 00:44:30,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:44:30,991 INFO L435 NwaCegarLoop]: 1367 mSDtfsCounter, 1215 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:30,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 3205 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-09 00:44:30,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2025-03-09 00:44:31,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1754. [2025-03-09 00:44:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1191 states have (on average 1.818639798488665) internal successors, (2166), 1744 states have internal predecessors, (2166), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2190 transitions. [2025-03-09 00:44:31,019 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2190 transitions. Word has length 25 [2025-03-09 00:44:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:31,019 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 2190 transitions. [2025-03-09 00:44:31,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2025-03-09 00:44:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2190 transitions. [2025-03-09 00:44:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-03-09 00:44:31,021 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:31,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:31,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 00:44:31,021 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr653REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:31,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1144786783, now seen corresponding path program 1 times [2025-03-09 00:44:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:31,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114688256] [2025-03-09 00:44:31,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:31,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:31,056 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-09 00:44:31,063 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-09 00:44:31,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:31,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:31,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:31,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:31,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114688256] [2025-03-09 00:44:31,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114688256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:31,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:31,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:44:31,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289100156] [2025-03-09 00:44:31,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:31,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 00:44:31,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:31,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 00:44:31,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 00:44:31,152 INFO L87 Difference]: Start difference. First operand 1754 states and 2190 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-03-09 00:44:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:31,321 INFO L93 Difference]: Finished difference Result 1754 states and 2186 transitions. [2025-03-09 00:44:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 00:44:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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 59 [2025-03-09 00:44:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:31,328 INFO L225 Difference]: With dead ends: 1754 [2025-03-09 00:44:31,328 INFO L226 Difference]: Without dead ends: 1754 [2025-03-09 00:44:31,329 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 [2025-03-09 00:44:31,330 INFO L435 NwaCegarLoop]: 1633 mSDtfsCounter, 21 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:31,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4868 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:44:31,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2025-03-09 00:44:31,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2025-03-09 00:44:31,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1191 states have (on average 1.8152812762384551) internal successors, (2162), 1744 states have internal predecessors, (2162), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2186 transitions. [2025-03-09 00:44:31,369 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2186 transitions. Word has length 59 [2025-03-09 00:44:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:31,369 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 2186 transitions. [2025-03-09 00:44:31,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2025-03-09 00:44:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2186 transitions. [2025-03-09 00:44:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-09 00:44:31,373 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:31,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:31,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-09 00:44:31,374 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr653REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:31,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:31,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1922542681, now seen corresponding path program 1 times [2025-03-09 00:44:31,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:31,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324716856] [2025-03-09 00:44:31,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:31,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:31,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-09 00:44:31,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-09 00:44:31,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:31,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:31,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:31,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324716856] [2025-03-09 00:44:31,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324716856] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:31,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:31,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 00:44:31,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069131903] [2025-03-09 00:44:31,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:31,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 00:44:31,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:31,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 00:44:31,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 00:44:31,485 INFO L87 Difference]: Start difference. First operand 1754 states and 2186 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2025-03-09 00:44:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:31,587 INFO L93 Difference]: Finished difference Result 1844 states and 2303 transitions. [2025-03-09 00:44:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 00:44:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2025-03-09 00:44:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:31,594 INFO L225 Difference]: With dead ends: 1844 [2025-03-09 00:44:31,594 INFO L226 Difference]: Without dead ends: 1844 [2025-03-09 00:44:31,595 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 [2025-03-09 00:44:31,595 INFO L435 NwaCegarLoop]: 1647 mSDtfsCounter, 54 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:31,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3267 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 00:44:31,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2025-03-09 00:44:31,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1844. [2025-03-09 00:44:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1281 states have (on average 1.7790788446526151) internal successors, (2279), 1834 states have internal predecessors, (2279), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:31,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 2303 transitions. [2025-03-09 00:44:31,617 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 2303 transitions. Word has length 67 [2025-03-09 00:44:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:31,617 INFO L471 AbstractCegarLoop]: Abstraction has 1844 states and 2303 transitions. [2025-03-09 00:44:31,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2025-03-09 00:44:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 2303 transitions. [2025-03-09 00:44:31,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-09 00:44:31,618 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:31,618 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:31,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 00:44:31,619 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr624REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:31,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:31,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1080685650, now seen corresponding path program 1 times [2025-03-09 00:44:31,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:31,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964160046] [2025-03-09 00:44:31,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:31,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:31,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-09 00:44:31,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-09 00:44:31,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:31,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:32,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:32,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964160046] [2025-03-09 00:44:32,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964160046] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:32,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:32,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 00:44:32,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537388747] [2025-03-09 00:44:32,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:32,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 00:44:32,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:32,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 00:44:32,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:44:32,013 INFO L87 Difference]: Start difference. First operand 1844 states and 2303 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:44:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:33,047 INFO L93 Difference]: Finished difference Result 1760 states and 2219 transitions. [2025-03-09 00:44:33,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 00:44:33,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2025-03-09 00:44:33,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:33,051 INFO L225 Difference]: With dead ends: 1760 [2025-03-09 00:44:33,051 INFO L226 Difference]: Without dead ends: 1760 [2025-03-09 00:44:33,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:44:33,051 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 3028 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 1851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:33,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3039 Valid, 1471 Invalid, 1851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-09 00:44:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2025-03-09 00:44:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1489. [2025-03-09 00:44:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1010 states have (on average 1.696039603960396) internal successors, (1713), 1479 states have internal predecessors, (1713), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:33,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1737 transitions. [2025-03-09 00:44:33,067 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1737 transitions. Word has length 70 [2025-03-09 00:44:33,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:33,067 INFO L471 AbstractCegarLoop]: Abstraction has 1489 states and 1737 transitions. [2025-03-09 00:44:33,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 00:44:33,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1737 transitions. [2025-03-09 00:44:33,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-09 00:44:33,068 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:33,069 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:33,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 00:44:33,069 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr617REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:33,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash -583900877, now seen corresponding path program 1 times [2025-03-09 00:44:33,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:33,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716266037] [2025-03-09 00:44:33,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:33,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:33,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-09 00:44:33,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-09 00:44:33,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:33,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:33,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:33,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716266037] [2025-03-09 00:44:33,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716266037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:33,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:33,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:44:33,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009901880] [2025-03-09 00:44:33,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:33,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 00:44:33,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:33,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 00:44:33,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:44:33,274 INFO L87 Difference]: Start difference. First operand 1489 states and 1737 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-03-09 00:44:34,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:34,060 INFO L93 Difference]: Finished difference Result 1488 states and 1736 transitions. [2025-03-09 00:44:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 00:44:34,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2025-03-09 00:44:34,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:34,063 INFO L225 Difference]: With dead ends: 1488 [2025-03-09 00:44:34,064 INFO L226 Difference]: Without dead ends: 1488 [2025-03-09 00:44:34,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:44:34,064 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 2 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:34,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4522 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 00:44:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2025-03-09 00:44:34,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1488. [2025-03-09 00:44:34,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1010 states have (on average 1.695049504950495) internal successors, (1712), 1478 states have internal predecessors, (1712), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:34,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1736 transitions. [2025-03-09 00:44:34,077 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1736 transitions. Word has length 75 [2025-03-09 00:44:34,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:34,077 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1736 transitions. [2025-03-09 00:44:34,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-03-09 00:44:34,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1736 transitions. [2025-03-09 00:44:34,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-09 00:44:34,078 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:34,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:34,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 00:44:34,078 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr618REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:34,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:34,078 INFO L85 PathProgramCache]: Analyzing trace with hash -583900876, now seen corresponding path program 1 times [2025-03-09 00:44:34,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:34,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672624097] [2025-03-09 00:44:34,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:34,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:34,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-09 00:44:34,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-09 00:44:34,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:34,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:34,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:34,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:34,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672624097] [2025-03-09 00:44:34,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672624097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:34,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:34,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 00:44:34,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474545026] [2025-03-09 00:44:34,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:34,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 00:44:34,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:34,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 00:44:34,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 00:44:34,421 INFO L87 Difference]: Start difference. First operand 1488 states and 1736 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-03-09 00:44:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:35,370 INFO L93 Difference]: Finished difference Result 1487 states and 1735 transitions. [2025-03-09 00:44:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 00:44:35,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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 75 [2025-03-09 00:44:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:35,374 INFO L225 Difference]: With dead ends: 1487 [2025-03-09 00:44:35,374 INFO L226 Difference]: Without dead ends: 1487 [2025-03-09 00:44:35,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:44:35,374 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 1 mSDsluCounter, 2985 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4544 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:35,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4544 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-09 00:44:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2025-03-09 00:44:35,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1487. [2025-03-09 00:44:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1009 states have (on average 1.6957383548067393) internal successors, (1711), 1477 states have internal predecessors, (1711), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:35,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1735 transitions. [2025-03-09 00:44:35,391 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1735 transitions. Word has length 75 [2025-03-09 00:44:35,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:35,391 INFO L471 AbstractCegarLoop]: Abstraction has 1487 states and 1735 transitions. [2025-03-09 00:44:35,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-03-09 00:44:35,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1735 transitions. [2025-03-09 00:44:35,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-09 00:44:35,392 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:35,392 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:35,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-09 00:44:35,392 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr613REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:35,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:35,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2009733008, now seen corresponding path program 1 times [2025-03-09 00:44:35,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:35,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219537217] [2025-03-09 00:44:35,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:35,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:35,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-09 00:44:35,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-09 00:44:35,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:35,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:35,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:35,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219537217] [2025-03-09 00:44:35,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219537217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:35,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:35,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 00:44:35,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241662122] [2025-03-09 00:44:35,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:35,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 00:44:35,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:35,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 00:44:35,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-09 00:44:35,591 INFO L87 Difference]: Start difference. First operand 1487 states and 1735 transitions. Second operand has 7 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:36,744 INFO L93 Difference]: Finished difference Result 1499 states and 1753 transitions. [2025-03-09 00:44:36,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 00:44:36,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2025-03-09 00:44:36,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:36,748 INFO L225 Difference]: With dead ends: 1499 [2025-03-09 00:44:36,748 INFO L226 Difference]: Without dead ends: 1499 [2025-03-09 00:44:36,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-03-09 00:44:36,748 INFO L435 NwaCegarLoop]: 1541 mSDtfsCounter, 13 mSDsluCounter, 5545 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7086 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:36,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7086 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-09 00:44:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2025-03-09 00:44:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1493. [2025-03-09 00:44:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1014 states have (on average 1.6942800788954635) internal successors, (1718), 1482 states have internal predecessors, (1718), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2025-03-09 00:44:36,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1748 transitions. [2025-03-09 00:44:36,761 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1748 transitions. Word has length 83 [2025-03-09 00:44:36,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:36,762 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1748 transitions. [2025-03-09 00:44:36,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1748 transitions. [2025-03-09 00:44:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-09 00:44:36,762 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:36,762 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:36,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 00:44:36,762 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr614REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:36,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:36,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2009733009, now seen corresponding path program 1 times [2025-03-09 00:44:36,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:36,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189421199] [2025-03-09 00:44:36,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:36,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:36,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-09 00:44:36,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-09 00:44:36,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:36,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:37,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:37,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189421199] [2025-03-09 00:44:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189421199] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:37,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:37,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 00:44:37,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27759155] [2025-03-09 00:44:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:37,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 00:44:37,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:37,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 00:44:37,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 00:44:37,138 INFO L87 Difference]: Start difference. First operand 1493 states and 1748 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:38,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:38,315 INFO L93 Difference]: Finished difference Result 1493 states and 1747 transitions. [2025-03-09 00:44:38,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 00:44:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2025-03-09 00:44:38,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:38,318 INFO L225 Difference]: With dead ends: 1493 [2025-03-09 00:44:38,318 INFO L226 Difference]: Without dead ends: 1493 [2025-03-09 00:44:38,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-09 00:44:38,319 INFO L435 NwaCegarLoop]: 1548 mSDtfsCounter, 8 mSDsluCounter, 4266 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5814 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:38,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5814 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-09 00:44:38,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2025-03-09 00:44:38,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2025-03-09 00:44:38,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1014 states have (on average 1.693293885601578) internal successors, (1717), 1482 states have internal predecessors, (1717), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2025-03-09 00:44:38,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1747 transitions. [2025-03-09 00:44:38,338 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1747 transitions. Word has length 83 [2025-03-09 00:44:38,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:38,338 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1747 transitions. [2025-03-09 00:44:38,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1747 transitions. [2025-03-09 00:44:38,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-09 00:44:38,340 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:38,340 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:38,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 00:44:38,340 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr613REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:38,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash -776110311, now seen corresponding path program 1 times [2025-03-09 00:44:38,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:38,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827933985] [2025-03-09 00:44:38,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:38,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:38,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-09 00:44:38,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 00:44:38,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:38,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:38,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:38,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827933985] [2025-03-09 00:44:38,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827933985] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:38,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788295637] [2025-03-09 00:44:38,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:38,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:44:38,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:44:38,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:44:38,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 00:44:38,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-09 00:44:38,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 00:44:38,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:38,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:38,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 00:44:38,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:44:38,891 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 [2025-03-09 00:44:38,982 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:44:38,983 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 [2025-03-09 00:44:38,995 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 19 treesize of output 1 [2025-03-09 00:44:39,048 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:44:39,048 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 42 treesize of output 41 [2025-03-09 00:44:39,074 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 31 treesize of output 13 [2025-03-09 00:44:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:39,077 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:44:39,119 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2025-03-09 00:44:39,119 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 21 treesize of output 20 [2025-03-09 00:44:39,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788295637] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:39,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:44:39,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 13 [2025-03-09 00:44:39,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661949258] [2025-03-09 00:44:39,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:44:39,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 00:44:39,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:39,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 00:44:39,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=170, Unknown=5, NotChecked=0, Total=210 [2025-03-09 00:44:39,145 INFO L87 Difference]: Start difference. First operand 1493 states and 1747 transitions. Second operand has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:44:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:41,162 INFO L93 Difference]: Finished difference Result 1492 states and 1746 transitions. [2025-03-09 00:44:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 00:44:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2025-03-09 00:44:41,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:41,165 INFO L225 Difference]: With dead ends: 1492 [2025-03-09 00:44:41,165 INFO L226 Difference]: Without dead ends: 1492 [2025-03-09 00:44:41,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=373, Unknown=5, NotChecked=0, Total=462 [2025-03-09 00:44:41,166 INFO L435 NwaCegarLoop]: 981 mSDtfsCounter, 1533 mSDsluCounter, 7633 mSDsCounter, 0 mSdLazyCounter, 5870 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 8614 SdHoareTripleChecker+Invalid, 5896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:41,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 8614 Invalid, 5896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 5870 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-09 00:44:41,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2025-03-09 00:44:41,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1492. [2025-03-09 00:44:41,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1492 states, 1014 states have (on average 1.6923076923076923) internal successors, (1716), 1481 states have internal predecessors, (1716), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (17), 8 states have call predecessors, (17), 11 states have call successors, (17) [2025-03-09 00:44:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 1746 transitions. [2025-03-09 00:44:41,179 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 1746 transitions. Word has length 84 [2025-03-09 00:44:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:41,179 INFO L471 AbstractCegarLoop]: Abstraction has 1492 states and 1746 transitions. [2025-03-09 00:44:41,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.916666666666666) internal successors, (119), 13 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:44:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 1746 transitions. [2025-03-09 00:44:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-09 00:44:41,179 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:41,180 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:41,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 00:44:41,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-09 00:44:41,384 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr614REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:41,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:41,384 INFO L85 PathProgramCache]: Analyzing trace with hash -776110310, now seen corresponding path program 1 times [2025-03-09 00:44:41,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:41,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090124017] [2025-03-09 00:44:41,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:41,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:41,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-09 00:44:41,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 00:44:41,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:41,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:41,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:41,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090124017] [2025-03-09 00:44:41,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090124017] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:41,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566574132] [2025-03-09 00:44:41,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:41,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:44:41,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:44:41,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:44:41,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 00:44:42,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-09 00:44:42,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 00:44:42,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:42,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:42,081 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-09 00:44:42,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:44:42,089 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 [2025-03-09 00:44:42,172 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 [2025-03-09 00:44:42,179 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:44:42,179 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 [2025-03-09 00:44:42,190 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 19 treesize of output 1 [2025-03-09 00:44:42,196 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 13 treesize of output 9 [2025-03-09 00:44:42,244 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 22 treesize of output 10 [2025-03-09 00:44:42,249 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 9 treesize of output 3 [2025-03-09 00:44:42,336 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:44:42,337 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 62 treesize of output 57 [2025-03-09 00:44:42,348 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 30 treesize of output 13 [2025-03-09 00:44:42,369 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 31 treesize of output 13 [2025-03-09 00:44:42,373 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 9 treesize of output 3 [2025-03-09 00:44:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:42,374 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:44:42,441 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_670 (Array Int Int)) (v_ArrVal_671 (Array Int Int))) (<= (+ 20 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_670) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_671) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_670 (Array Int Int))) (<= 0 (+ 16 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_670) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-03-09 00:44:42,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566574132] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:42,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:44:42,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 14 [2025-03-09 00:44:42,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794756041] [2025-03-09 00:44:42,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:44:42,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 00:44:42,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:42,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 00:44:42,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=225, Unknown=1, NotChecked=30, Total=306 [2025-03-09 00:44:42,443 INFO L87 Difference]: Start difference. First operand 1492 states and 1746 transitions. Second operand has 15 states, 12 states have (on average 10.416666666666666) internal successors, (125), 15 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:44:44,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:44,560 INFO L93 Difference]: Finished difference Result 1499 states and 1753 transitions. [2025-03-09 00:44:44,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 00:44:44,561 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 10.416666666666666) internal successors, (125), 15 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 84 [2025-03-09 00:44:44,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:44,564 INFO L225 Difference]: With dead ends: 1499 [2025-03-09 00:44:44,564 INFO L226 Difference]: Without dead ends: 1499 [2025-03-09 00:44:44,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=345, Unknown=1, NotChecked=38, Total=462 [2025-03-09 00:44:44,565 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 1533 mSDsluCounter, 4862 mSDsCounter, 0 mSdLazyCounter, 5450 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 5848 SdHoareTripleChecker+Invalid, 5491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 5450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:44,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1548 Valid, 5848 Invalid, 5491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 5450 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-09 00:44:44,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2025-03-09 00:44:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1490. [2025-03-09 00:44:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1490 states, 1013 states have (on average 1.6920039486673248) internal successors, (1714), 1479 states have internal predecessors, (1714), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1738 transitions. [2025-03-09 00:44:44,590 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1738 transitions. Word has length 84 [2025-03-09 00:44:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:44,590 INFO L471 AbstractCegarLoop]: Abstraction has 1490 states and 1738 transitions. [2025-03-09 00:44:44,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 10.416666666666666) internal successors, (125), 15 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:44:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1738 transitions. [2025-03-09 00:44:44,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-09 00:44:44,591 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:44,591 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:44,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 00:44:44,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-09 00:44:44,792 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr609REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:44,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash 113636991, now seen corresponding path program 1 times [2025-03-09 00:44:44,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:44,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607030036] [2025-03-09 00:44:44,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:44,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-09 00:44:44,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-09 00:44:44,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:44,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:45,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:45,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:45,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607030036] [2025-03-09 00:44:45,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607030036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:45,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:45,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-09 00:44:45,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114542865] [2025-03-09 00:44:45,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:45,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 00:44:45,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:45,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 00:44:45,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-03-09 00:44:45,140 INFO L87 Difference]: Start difference. First operand 1490 states and 1738 transitions. Second operand has 14 states, 12 states have (on average 7.0) internal successors, (84), 13 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:47,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:47,316 INFO L93 Difference]: Finished difference Result 1503 states and 1757 transitions. [2025-03-09 00:44:47,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 00:44:47,316 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 13 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2025-03-09 00:44:47,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:47,319 INFO L225 Difference]: With dead ends: 1503 [2025-03-09 00:44:47,319 INFO L226 Difference]: Without dead ends: 1503 [2025-03-09 00:44:47,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2025-03-09 00:44:47,320 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 1541 mSDsluCounter, 8621 mSDsCounter, 0 mSdLazyCounter, 6522 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 9601 SdHoareTripleChecker+Invalid, 6548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:47,320 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 9601 Invalid, 6548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6522 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-09 00:44:47,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2025-03-09 00:44:47,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1499. [2025-03-09 00:44:47,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1021 states have (on average 1.6885406464250734) internal successors, (1724), 1487 states have internal predecessors, (1724), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:44:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1749 transitions. [2025-03-09 00:44:47,333 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1749 transitions. Word has length 86 [2025-03-09 00:44:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:47,334 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 1749 transitions. [2025-03-09 00:44:47,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.0) internal successors, (84), 13 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1749 transitions. [2025-03-09 00:44:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-03-09 00:44:47,334 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:47,334 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:47,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-09 00:44:47,335 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr610REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:47,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash 113636992, now seen corresponding path program 1 times [2025-03-09 00:44:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769948589] [2025-03-09 00:44:47,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:47,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:47,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-03-09 00:44:47,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-03-09 00:44:47,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:47,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:47,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:47,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769948589] [2025-03-09 00:44:47,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769948589] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:47,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:47,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-09 00:44:47,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753264889] [2025-03-09 00:44:47,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:47,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 00:44:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:47,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 00:44:47,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-03-09 00:44:47,825 INFO L87 Difference]: Start difference. First operand 1499 states and 1749 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:49,697 INFO L93 Difference]: Finished difference Result 1502 states and 1756 transitions. [2025-03-09 00:44:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 00:44:49,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2025-03-09 00:44:49,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:49,700 INFO L225 Difference]: With dead ends: 1502 [2025-03-09 00:44:49,700 INFO L226 Difference]: Without dead ends: 1502 [2025-03-09 00:44:49,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-03-09 00:44:49,700 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 1534 mSDsluCounter, 5059 mSDsCounter, 0 mSdLazyCounter, 5216 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 6046 SdHoareTripleChecker+Invalid, 5240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:49,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 6046 Invalid, 5240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 5216 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-09 00:44:49,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2025-03-09 00:44:49,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1499. [2025-03-09 00:44:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1021 states have (on average 1.6875612144955925) internal successors, (1723), 1487 states have internal predecessors, (1723), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:44:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1748 transitions. [2025-03-09 00:44:49,726 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1748 transitions. Word has length 86 [2025-03-09 00:44:49,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:49,726 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 1748 transitions. [2025-03-09 00:44:49,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1748 transitions. [2025-03-09 00:44:49,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-09 00:44:49,727 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:49,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:49,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-09 00:44:49,727 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr609REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:49,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:49,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1291618730, now seen corresponding path program 1 times [2025-03-09 00:44:49,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:49,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631069197] [2025-03-09 00:44:49,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:49,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:49,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-09 00:44:49,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 00:44:49,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:49,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:50,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:50,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631069197] [2025-03-09 00:44:50,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631069197] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593905150] [2025-03-09 00:44:50,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:50,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:44:50,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:44:50,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:44:50,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 00:44:50,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-09 00:44:50,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 00:44:50,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:50,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:50,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-09 00:44:50,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:44:50,265 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 [2025-03-09 00:44:50,343 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:44:50,344 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 [2025-03-09 00:44:50,352 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 19 treesize of output 1 [2025-03-09 00:44:50,393 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:44:50,393 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 42 treesize of output 41 [2025-03-09 00:44:50,426 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:44:50,426 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 42 treesize of output 41 [2025-03-09 00:44:50,438 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 31 treesize of output 13 [2025-03-09 00:44:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:50,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:44:50,445 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_928 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_928) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-03-09 00:44:50,498 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2025-03-09 00:44:50,498 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 33 treesize of output 32 [2025-03-09 00:44:50,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593905150] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:50,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:44:50,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 15 [2025-03-09 00:44:50,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845430086] [2025-03-09 00:44:50,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:44:50,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 00:44:50,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:50,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 00:44:50,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=245, Unknown=15, NotChecked=32, Total=342 [2025-03-09 00:44:50,526 INFO L87 Difference]: Start difference. First operand 1499 states and 1748 transitions. Second operand has 16 states, 14 states have (on average 8.857142857142858) internal successors, (124), 15 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:52,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:52,440 INFO L93 Difference]: Finished difference Result 1501 states and 1755 transitions. [2025-03-09 00:44:52,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 00:44:52,440 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.857142857142858) internal successors, (124), 15 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2025-03-09 00:44:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:52,442 INFO L225 Difference]: With dead ends: 1501 [2025-03-09 00:44:52,442 INFO L226 Difference]: Without dead ends: 1501 [2025-03-09 00:44:52,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=483, Unknown=15, NotChecked=46, Total=650 [2025-03-09 00:44:52,443 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 1529 mSDsluCounter, 7661 mSDsCounter, 0 mSdLazyCounter, 5864 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 5889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:52,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 8641 Invalid, 5889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5864 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-09 00:44:52,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2025-03-09 00:44:52,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1498. [2025-03-09 00:44:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1021 states have (on average 1.6865817825661116) internal successors, (1722), 1486 states have internal predecessors, (1722), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:44:52,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 1747 transitions. [2025-03-09 00:44:52,458 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 1747 transitions. Word has length 87 [2025-03-09 00:44:52,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:52,458 INFO L471 AbstractCegarLoop]: Abstraction has 1498 states and 1747 transitions. [2025-03-09 00:44:52,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.857142857142858) internal successors, (124), 15 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:44:52,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 1747 transitions. [2025-03-09 00:44:52,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-09 00:44:52,458 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:52,458 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:52,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 00:44:52,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:44:52,659 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr610REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:52,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:52,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1291618729, now seen corresponding path program 1 times [2025-03-09 00:44:52,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205671585] [2025-03-09 00:44:52,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:52,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:52,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-09 00:44:52,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 00:44:52,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:52,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:53,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:53,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205671585] [2025-03-09 00:44:53,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205671585] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:53,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126891504] [2025-03-09 00:44:53,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:53,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:44:53,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:44:53,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:44:53,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 00:44:53,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-09 00:44:53,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-09 00:44:53,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:53,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:53,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-09 00:44:53,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:44:53,303 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 [2025-03-09 00:44:53,373 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 [2025-03-09 00:44:53,377 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:44:53,377 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 [2025-03-09 00:44:53,402 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 19 treesize of output 1 [2025-03-09 00:44:53,404 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 13 treesize of output 9 [2025-03-09 00:44:53,460 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 22 treesize of output 10 [2025-03-09 00:44:53,463 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 9 treesize of output 3 [2025-03-09 00:44:53,535 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:44:53,535 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 62 treesize of output 57 [2025-03-09 00:44:53,542 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 30 treesize of output 13 [2025-03-09 00:44:53,597 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:44:53,597 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 62 treesize of output 57 [2025-03-09 00:44:53,602 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 30 treesize of output 13 [2025-03-09 00:44:53,611 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 31 treesize of output 13 [2025-03-09 00:44:53,614 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 9 treesize of output 3 [2025-03-09 00:44:53,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:53,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:44:53,677 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1072 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1072) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4))) (forall ((v_ArrVal_1071 (Array Int Int)) (v_ArrVal_1072 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1072) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1071) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-03-09 00:44:53,687 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1072 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1072) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1071 (Array Int Int)) (v_ArrVal_1072 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1072) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1071) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2025-03-09 00:44:53,727 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1078 (Array Int Int)) (v_ArrVal_1077 (Array Int Int)) (v_ArrVal_1072 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1077) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1078) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1072) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 4))) (forall ((v_ArrVal_1071 (Array Int Int)) (v_ArrVal_1078 (Array Int Int)) (v_ArrVal_1077 (Array Int Int)) (v_ArrVal_1072 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1078))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1077) .cse1 v_ArrVal_1072) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_1071) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))) is different from false [2025-03-09 00:44:53,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126891504] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:44:53,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:44:53,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2025-03-09 00:44:53,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041851372] [2025-03-09 00:44:53,729 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:44:53,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-09 00:44:53,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:53,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-09 00:44:53,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=397, Unknown=3, NotChecked=126, Total=600 [2025-03-09 00:44:53,730 INFO L87 Difference]: Start difference. First operand 1498 states and 1747 transitions. Second operand has 20 states, 17 states have (on average 8.058823529411764) internal successors, (137), 20 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:44:58,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:44:58,289 INFO L93 Difference]: Finished difference Result 1500 states and 1754 transitions. [2025-03-09 00:44:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 00:44:58,289 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.058823529411764) internal successors, (137), 20 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 87 [2025-03-09 00:44:58,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:44:58,292 INFO L225 Difference]: With dead ends: 1500 [2025-03-09 00:44:58,292 INFO L226 Difference]: Without dead ends: 1500 [2025-03-09 00:44:58,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=594, Unknown=3, NotChecked=156, Total=870 [2025-03-09 00:44:58,292 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 1526 mSDsluCounter, 10221 mSDsCounter, 0 mSdLazyCounter, 11314 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 11206 SdHoareTripleChecker+Invalid, 11341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 11314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-09 00:44:58,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 11206 Invalid, 11341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 11314 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2025-03-09 00:44:58,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2025-03-09 00:44:58,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1488. [2025-03-09 00:44:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1488 states, 1013 states have (on average 1.6900296150049359) internal successors, (1712), 1477 states have internal predecessors, (1712), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:44:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1736 transitions. [2025-03-09 00:44:58,302 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1736 transitions. Word has length 87 [2025-03-09 00:44:58,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:44:58,302 INFO L471 AbstractCegarLoop]: Abstraction has 1488 states and 1736 transitions. [2025-03-09 00:44:58,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.058823529411764) internal successors, (137), 20 states have internal predecessors, (137), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:44:58,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1736 transitions. [2025-03-09 00:44:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-09 00:44:58,303 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:44:58,303 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:44:58,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 00:44:58,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:44:58,503 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr605REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:44:58,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:44:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash 927064585, now seen corresponding path program 1 times [2025-03-09 00:44:58,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:44:58,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727268604] [2025-03-09 00:44:58,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:44:58,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:44:58,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-09 00:44:58,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-09 00:44:58,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:44:58,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:44:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:44:58,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:44:58,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727268604] [2025-03-09 00:44:58,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727268604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:44:58,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:44:58,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-09 00:44:58,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245766020] [2025-03-09 00:44:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:44:58,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 00:44:58,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:44:58,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 00:44:58,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-03-09 00:44:58,945 INFO L87 Difference]: Start difference. First operand 1488 states and 1736 transitions. Second operand has 15 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 14 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:01,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:01,246 INFO L93 Difference]: Finished difference Result 1504 states and 1758 transitions. [2025-03-09 00:45:01,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 00:45:01,248 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 14 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2025-03-09 00:45:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:01,251 INFO L225 Difference]: With dead ends: 1504 [2025-03-09 00:45:01,251 INFO L226 Difference]: Without dead ends: 1504 [2025-03-09 00:45:01,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2025-03-09 00:45:01,254 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 1536 mSDsluCounter, 9545 mSDsCounter, 0 mSdLazyCounter, 7181 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 10524 SdHoareTripleChecker+Invalid, 7206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:01,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 10524 Invalid, 7206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7181 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-09 00:45:01,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2025-03-09 00:45:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1500. [2025-03-09 00:45:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1024 states have (on average 1.6845703125) internal successors, (1725), 1488 states have internal predecessors, (1725), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1750 transitions. [2025-03-09 00:45:01,265 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1750 transitions. Word has length 89 [2025-03-09 00:45:01,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:01,265 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1750 transitions. [2025-03-09 00:45:01,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 14 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1750 transitions. [2025-03-09 00:45:01,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-09 00:45:01,266 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:01,266 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:01,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-09 00:45:01,266 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr606REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:01,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:01,267 INFO L85 PathProgramCache]: Analyzing trace with hash 927064586, now seen corresponding path program 1 times [2025-03-09 00:45:01,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:01,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524516956] [2025-03-09 00:45:01,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:01,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:01,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-09 00:45:01,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-09 00:45:01,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:01,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:01,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:01,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:01,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524516956] [2025-03-09 00:45:01,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524516956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:45:01,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:45:01,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-03-09 00:45:01,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070775548] [2025-03-09 00:45:01,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:45:01,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 00:45:01,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:01,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 00:45:01,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-03-09 00:45:01,822 INFO L87 Difference]: Start difference. First operand 1500 states and 1750 transitions. Second operand has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:03,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:03,671 INFO L93 Difference]: Finished difference Result 1503 states and 1757 transitions. [2025-03-09 00:45:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 00:45:03,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 89 [2025-03-09 00:45:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:03,673 INFO L225 Difference]: With dead ends: 1503 [2025-03-09 00:45:03,673 INFO L226 Difference]: Without dead ends: 1503 [2025-03-09 00:45:03,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-09 00:45:03,674 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 1535 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 4562 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 5118 SdHoareTripleChecker+Invalid, 4586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 4562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:03,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1550 Valid, 5118 Invalid, 4586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 4562 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-09 00:45:03,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2025-03-09 00:45:03,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1500. [2025-03-09 00:45:03,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1024 states have (on average 1.68359375) internal successors, (1724), 1488 states have internal predecessors, (1724), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1749 transitions. [2025-03-09 00:45:03,684 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1749 transitions. Word has length 89 [2025-03-09 00:45:03,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:03,684 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1749 transitions. [2025-03-09 00:45:03,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.909090909090909) internal successors, (87), 12 states have internal predecessors, (87), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:03,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1749 transitions. [2025-03-09 00:45:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-09 00:45:03,685 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:03,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:03,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-09 00:45:03,685 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr605REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:03,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash 114386, now seen corresponding path program 1 times [2025-03-09 00:45:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169624352] [2025-03-09 00:45:03,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:03,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 00:45:03,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 00:45:03,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:03,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169624352] [2025-03-09 00:45:04,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169624352] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:04,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255010441] [2025-03-09 00:45:04,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:04,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:04,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:45:04,076 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:45:04,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 00:45:04,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 00:45:04,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 00:45:04,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:04,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:04,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-09 00:45:04,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:45:04,282 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 [2025-03-09 00:45:04,350 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:04,350 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 [2025-03-09 00:45:04,356 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 19 treesize of output 1 [2025-03-09 00:45:04,413 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:04,414 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 42 treesize of output 41 [2025-03-09 00:45:04,450 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:04,450 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 42 treesize of output 41 [2025-03-09 00:45:04,486 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:04,486 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 42 treesize of output 41 [2025-03-09 00:45:04,495 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 31 treesize of output 13 [2025-03-09 00:45:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:04,497 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:45:04,506 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1360 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1360) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-03-09 00:45:04,512 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1360 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1360) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2025-03-09 00:45:04,519 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1359 (Array Int Int)) (v_ArrVal_1360 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1359))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1360)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-03-09 00:45:04,565 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2025-03-09 00:45:04,565 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 57 treesize of output 56 [2025-03-09 00:45:04,569 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1359 (Array Int Int)) (v_ArrVal_1363 (Array Int Int)) (v_ArrVal_1360 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1363))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1359)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1360)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem50#1.base|)) is different from false [2025-03-09 00:45:04,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255010441] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:04,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:45:04,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 18 [2025-03-09 00:45:04,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820714334] [2025-03-09 00:45:04,570 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:45:04,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 00:45:04,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:04,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 00:45:04,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=320, Unknown=8, NotChecked=156, Total=552 [2025-03-09 00:45:04,571 INFO L87 Difference]: Start difference. First operand 1500 states and 1749 transitions. Second operand has 19 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 19 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:06,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:06,687 INFO L93 Difference]: Finished difference Result 1502 states and 1756 transitions. [2025-03-09 00:45:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 00:45:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 19 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2025-03-09 00:45:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:06,689 INFO L225 Difference]: With dead ends: 1502 [2025-03-09 00:45:06,689 INFO L226 Difference]: Without dead ends: 1502 [2025-03-09 00:45:06,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 91 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=631, Unknown=8, NotChecked=220, Total=992 [2025-03-09 00:45:06,690 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 1527 mSDsluCounter, 8605 mSDsCounter, 0 mSdLazyCounter, 6502 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 9584 SdHoareTripleChecker+Invalid, 6527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:06,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 9584 Invalid, 6527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 6502 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-09 00:45:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2025-03-09 00:45:06,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1499. [2025-03-09 00:45:06,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1024 states have (on average 1.6826171875) internal successors, (1723), 1487 states have internal predecessors, (1723), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:06,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 1748 transitions. [2025-03-09 00:45:06,699 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 1748 transitions. Word has length 90 [2025-03-09 00:45:06,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:06,700 INFO L471 AbstractCegarLoop]: Abstraction has 1499 states and 1748 transitions. [2025-03-09 00:45:06,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 19 states have internal predecessors, (135), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 1748 transitions. [2025-03-09 00:45:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-09 00:45:06,700 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:06,700 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:06,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 00:45:06,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-09 00:45:06,905 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr606REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:06,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash 114387, now seen corresponding path program 1 times [2025-03-09 00:45:06,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:06,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238513905] [2025-03-09 00:45:06,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:06,918 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 00:45:06,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 00:45:06,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:06,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:07,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:07,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238513905] [2025-03-09 00:45:07,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238513905] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:07,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335707887] [2025-03-09 00:45:07,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:07,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:07,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:45:07,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:45:07,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 00:45:07,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 00:45:07,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 00:45:07,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:07,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:07,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-09 00:45:07,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:45:07,595 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 [2025-03-09 00:45:07,664 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:07,665 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 [2025-03-09 00:45:07,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-09 00:45:07,674 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 13 treesize of output 9 [2025-03-09 00:45:07,680 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 19 treesize of output 1 [2025-03-09 00:45:07,709 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 22 treesize of output 10 [2025-03-09 00:45:07,711 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 9 treesize of output 3 [2025-03-09 00:45:07,772 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:07,772 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 62 treesize of output 57 [2025-03-09 00:45:07,781 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 30 treesize of output 13 [2025-03-09 00:45:07,827 INFO L349 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2025-03-09 00:45:07,828 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 67 treesize of output 39 [2025-03-09 00:45:07,833 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 30 treesize of output 13 [2025-03-09 00:45:07,906 INFO L349 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2025-03-09 00:45:07,906 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 2 case distinctions, treesize of input 77 treesize of output 64 [2025-03-09 00:45:07,912 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 30 treesize of output 13 [2025-03-09 00:45:07,918 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 3 [2025-03-09 00:45:07,927 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 31 treesize of output 13 [2025-03-09 00:45:07,931 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 9 treesize of output 3 [2025-03-09 00:45:07,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:07,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:45:07,975 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int))) (<= (+ 12 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1520) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1519 (Array Int Int))) (<= 0 (+ 8 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2025-03-09 00:45:07,981 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_1520) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1519 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8)))))) is different from false [2025-03-09 00:45:08,001 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8)) (.cse0 (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base|))) (and (forall ((|ULTIMATE.start_main_#t~mem52#1.offset| Int) (v_ArrVal_1519 (Array Int Int)) (v_ArrVal_1517 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1517) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| (store .cse0 (+ |ULTIMATE.start_main_#t~mem52#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((|ULTIMATE.start_main_#t~mem52#1.offset| Int) (v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int)) (v_ArrVal_1517 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| (store .cse0 (+ |ULTIMATE.start_main_#t~mem52#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1517) .cse2 v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1520) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2025-03-09 00:45:08,015 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse0))) (and (forall ((|ULTIMATE.start_main_#t~mem52#1.offset| Int) (v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int)) (v_ArrVal_1517 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse0 (store .cse4 (+ |ULTIMATE.start_main_#t~mem52#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1517) .cse1 v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_1520) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((|ULTIMATE.start_main_#t~mem52#1.offset| Int) (v_ArrVal_1519 (Array Int Int)) (v_ArrVal_1517 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_1517) (select (select (store |c_#memory_$Pointer$#2.base| .cse0 (store .cse4 (+ |ULTIMATE.start_main_#t~mem52#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) is different from false [2025-03-09 00:45:08,060 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1526 (Array Int Int)) (v_ArrVal_1525 (Array Int Int)) (|ULTIMATE.start_main_#t~mem52#1.offset| Int) (v_ArrVal_1519 (Array Int Int)) (v_ArrVal_1517 (Array Int Int))) (<= 0 (+ 8 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1526))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1525) .cse0 v_ArrVal_1517) (select (select (store .cse1 .cse0 (store (select .cse1 .cse0) (+ |ULTIMATE.start_main_#t~mem52#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1519))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (forall ((v_ArrVal_1526 (Array Int Int)) (v_ArrVal_1525 (Array Int Int)) (|ULTIMATE.start_main_#t~mem52#1.offset| Int) (v_ArrVal_1520 (Array Int Int)) (v_ArrVal_1519 (Array Int Int)) (v_ArrVal_1517 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1526))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 (store (select .cse6 .cse3) (+ |ULTIMATE.start_main_#t~mem52#1.offset| 16) |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ 12 (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1525) .cse3 v_ArrVal_1517) .cse4 v_ArrVal_1519) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_1520) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2025-03-09 00:45:08,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335707887] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:08,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:45:08,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 18 [2025-03-09 00:45:08,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325867751] [2025-03-09 00:45:08,062 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:45:08,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 00:45:08,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:08,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 00:45:08,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=355, Unknown=5, NotChecked=210, Total=650 [2025-03-09 00:45:08,064 INFO L87 Difference]: Start difference. First operand 1499 states and 1748 transitions. Second operand has 19 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 19 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:10,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:10,638 INFO L93 Difference]: Finished difference Result 1501 states and 1755 transitions. [2025-03-09 00:45:10,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 00:45:10,638 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 19 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2025-03-09 00:45:10,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:10,641 INFO L225 Difference]: With dead ends: 1501 [2025-03-09 00:45:10,641 INFO L226 Difference]: Without dead ends: 1501 [2025-03-09 00:45:10,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 88 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=636, Unknown=5, NotChecked=280, Total=1056 [2025-03-09 00:45:10,641 INFO L435 NwaCegarLoop]: 984 mSDtfsCounter, 1523 mSDsluCounter, 6565 mSDsCounter, 0 mSdLazyCounter, 6971 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 7549 SdHoareTripleChecker+Invalid, 6998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:10,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 7549 Invalid, 6998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6971 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-09 00:45:10,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2025-03-09 00:45:10,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1486. [2025-03-09 00:45:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1013 states have (on average 1.688055281342547) internal successors, (1710), 1475 states have internal predecessors, (1710), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:45:10,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1734 transitions. [2025-03-09 00:45:10,651 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1734 transitions. Word has length 90 [2025-03-09 00:45:10,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:10,651 INFO L471 AbstractCegarLoop]: Abstraction has 1486 states and 1734 transitions. [2025-03-09 00:45:10,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 7.9411764705882355) internal successors, (135), 19 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1734 transitions. [2025-03-09 00:45:10,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-09 00:45:10,652 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:10,652 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:10,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 00:45:10,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:10,853 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr601REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:10,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1543026456, now seen corresponding path program 1 times [2025-03-09 00:45:10,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:10,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803359842] [2025-03-09 00:45:10,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:10,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:10,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 00:45:10,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 00:45:10,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:10,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:11,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:11,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803359842] [2025-03-09 00:45:11,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803359842] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:45:11,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:45:11,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-09 00:45:11,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741351645] [2025-03-09 00:45:11,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:45:11,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 00:45:11,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:11,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 00:45:11,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2025-03-09 00:45:11,199 INFO L87 Difference]: Start difference. First operand 1486 states and 1734 transitions. Second operand has 16 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:13,654 INFO L93 Difference]: Finished difference Result 1505 states and 1759 transitions. [2025-03-09 00:45:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 00:45:13,657 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2025-03-09 00:45:13,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:13,659 INFO L225 Difference]: With dead ends: 1505 [2025-03-09 00:45:13,659 INFO L226 Difference]: Without dead ends: 1505 [2025-03-09 00:45:13,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2025-03-09 00:45:13,659 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 1554 mSDsluCounter, 9523 mSDsCounter, 0 mSdLazyCounter, 7182 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1569 SdHoareTripleChecker+Valid, 10501 SdHoareTripleChecker+Invalid, 7207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:13,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1569 Valid, 10501 Invalid, 7207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7182 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-03-09 00:45:13,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2025-03-09 00:45:13,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1501. [2025-03-09 00:45:13,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1027 states have (on average 1.6806231742940603) internal successors, (1726), 1489 states have internal predecessors, (1726), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1751 transitions. [2025-03-09 00:45:13,673 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1751 transitions. Word has length 92 [2025-03-09 00:45:13,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:13,673 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 1751 transitions. [2025-03-09 00:45:13,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.428571428571429) internal successors, (90), 15 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1751 transitions. [2025-03-09 00:45:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-09 00:45:13,674 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:13,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:13,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-09 00:45:13,674 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr602REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:13,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:13,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1543026457, now seen corresponding path program 1 times [2025-03-09 00:45:13,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:13,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822316642] [2025-03-09 00:45:13,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:13,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:13,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 00:45:13,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 00:45:13,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:13,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:14,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:14,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822316642] [2025-03-09 00:45:14,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822316642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:45:14,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:45:14,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-09 00:45:14,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803861539] [2025-03-09 00:45:14,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:45:14,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 00:45:14,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:14,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 00:45:14,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-03-09 00:45:14,162 INFO L87 Difference]: Start difference. First operand 1501 states and 1751 transitions. Second operand has 13 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:16,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:16,374 INFO L93 Difference]: Finished difference Result 1504 states and 1758 transitions. [2025-03-09 00:45:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 00:45:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2025-03-09 00:45:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:16,376 INFO L225 Difference]: With dead ends: 1504 [2025-03-09 00:45:16,376 INFO L226 Difference]: Without dead ends: 1504 [2025-03-09 00:45:16,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2025-03-09 00:45:16,377 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 1536 mSDsluCounter, 5797 mSDsCounter, 0 mSdLazyCounter, 6085 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 6109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:16,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1551 Valid, 6782 Invalid, 6109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6085 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-09 00:45:16,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2025-03-09 00:45:16,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1501. [2025-03-09 00:45:16,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 1027 states have (on average 1.679649464459591) internal successors, (1725), 1489 states have internal predecessors, (1725), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:16,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 1750 transitions. [2025-03-09 00:45:16,389 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 1750 transitions. Word has length 92 [2025-03-09 00:45:16,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:16,389 INFO L471 AbstractCegarLoop]: Abstraction has 1501 states and 1750 transitions. [2025-03-09 00:45:16,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 13 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:16,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 1750 transitions. [2025-03-09 00:45:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-09 00:45:16,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:16,390 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:16,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-09 00:45:16,390 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr601REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:16,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:16,390 INFO L85 PathProgramCache]: Analyzing trace with hash -885605969, now seen corresponding path program 1 times [2025-03-09 00:45:16,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:16,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886005978] [2025-03-09 00:45:16,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:16,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:16,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-09 00:45:16,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-09 00:45:16,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:16,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:16,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:16,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886005978] [2025-03-09 00:45:16,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886005978] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:16,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793862724] [2025-03-09 00:45:16,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:16,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:16,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:45:16,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:45:16,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 00:45:16,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-09 00:45:16,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-09 00:45:16,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:16,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:16,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-09 00:45:16,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:45:16,940 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 [2025-03-09 00:45:16,993 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:16,993 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 [2025-03-09 00:45:17,001 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 19 treesize of output 1 [2025-03-09 00:45:17,061 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:17,061 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 42 treesize of output 41 [2025-03-09 00:45:17,087 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:17,088 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 42 treesize of output 41 [2025-03-09 00:45:17,113 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:17,113 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 42 treesize of output 41 [2025-03-09 00:45:17,140 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:17,141 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 42 treesize of output 41 [2025-03-09 00:45:17,148 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 31 treesize of output 13 [2025-03-09 00:45:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:17,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:45:17,159 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1833 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1833) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-03-09 00:45:17,162 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1833 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1833) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2025-03-09 00:45:17,166 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1833 (Array Int Int)) (v_ArrVal_1832 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1832))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1833)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-03-09 00:45:17,193 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1833 (Array Int Int)) (v_ArrVal_1832 (Array Int Int)) (v_ArrVal_1831 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1831))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1832)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1833)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-03-09 00:45:17,197 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1833 (Array Int Int)) (v_ArrVal_1832 (Array Int Int)) (v_ArrVal_1831 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1831))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1832)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1833)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-03-09 00:45:17,220 INFO L349 Elim1Store]: treesize reduction 5, result has 95.0 percent of original size [2025-03-09 00:45:17,220 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 105 treesize of output 104 [2025-03-09 00:45:17,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793862724] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:17,251 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:45:17,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 20 [2025-03-09 00:45:17,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708323593] [2025-03-09 00:45:17,251 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:45:17,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-09 00:45:17,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:17,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-09 00:45:17,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=428, Unknown=12, NotChecked=230, Total=756 [2025-03-09 00:45:17,254 INFO L87 Difference]: Start difference. First operand 1501 states and 1750 transitions. Second operand has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 21 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:19,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:19,924 INFO L93 Difference]: Finished difference Result 1503 states and 1757 transitions. [2025-03-09 00:45:19,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 00:45:19,925 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 21 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2025-03-09 00:45:19,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:19,926 INFO L225 Difference]: With dead ends: 1503 [2025-03-09 00:45:19,926 INFO L226 Difference]: Without dead ends: 1503 [2025-03-09 00:45:19,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=164, Invalid=836, Unknown=12, NotChecked=320, Total=1332 [2025-03-09 00:45:19,927 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 1523 mSDsluCounter, 11466 mSDsCounter, 0 mSdLazyCounter, 8413 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 12444 SdHoareTripleChecker+Invalid, 8438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 8413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:19,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 12444 Invalid, 8438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 8413 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2025-03-09 00:45:19,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2025-03-09 00:45:19,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1500. [2025-03-09 00:45:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1500 states, 1027 states have (on average 1.6786757546251216) internal successors, (1724), 1488 states have internal predecessors, (1724), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:19,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1749 transitions. [2025-03-09 00:45:19,938 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1749 transitions. Word has length 93 [2025-03-09 00:45:19,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:19,938 INFO L471 AbstractCegarLoop]: Abstraction has 1500 states and 1749 transitions. [2025-03-09 00:45:19,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.368421052631579) internal successors, (140), 21 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1749 transitions. [2025-03-09 00:45:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-09 00:45:19,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:19,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:19,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 00:45:20,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:20,139 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr602REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:20,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:20,139 INFO L85 PathProgramCache]: Analyzing trace with hash -885605968, now seen corresponding path program 1 times [2025-03-09 00:45:20,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799763877] [2025-03-09 00:45:20,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:20,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:20,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-09 00:45:20,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-09 00:45:20,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:20,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:20,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:20,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799763877] [2025-03-09 00:45:20,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799763877] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:20,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324736795] [2025-03-09 00:45:20,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:20,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:20,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:45:20,738 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:45:20,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 00:45:20,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-03-09 00:45:20,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-03-09 00:45:20,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:20,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:20,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-03-09 00:45:20,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:45:20,959 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 [2025-03-09 00:45:21,016 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 [2025-03-09 00:45:21,021 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:21,021 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 [2025-03-09 00:45:21,026 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 19 treesize of output 1 [2025-03-09 00:45:21,031 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 13 treesize of output 9 [2025-03-09 00:45:21,058 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 22 treesize of output 10 [2025-03-09 00:45:21,061 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 9 treesize of output 3 [2025-03-09 00:45:21,123 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:21,123 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 62 treesize of output 57 [2025-03-09 00:45:21,131 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 30 treesize of output 13 [2025-03-09 00:45:21,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:21,173 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 62 treesize of output 57 [2025-03-09 00:45:21,176 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 30 treesize of output 13 [2025-03-09 00:45:21,211 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:21,212 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 62 treesize of output 57 [2025-03-09 00:45:21,214 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 30 treesize of output 13 [2025-03-09 00:45:21,247 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:21,247 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 62 treesize of output 57 [2025-03-09 00:45:21,251 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 30 treesize of output 13 [2025-03-09 00:45:21,260 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 31 treesize of output 13 [2025-03-09 00:45:21,262 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 9 treesize of output 3 [2025-03-09 00:45:21,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:21,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:45:21,296 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2004 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20))))) is different from false [2025-03-09 00:45:21,302 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_2004 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))) (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2025-03-09 00:45:21,312 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2002) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 20))) (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2003))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2002) .cse1 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 24) (select |c_#length| (select (select (store .cse2 .cse1 v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))) is different from false [2025-03-09 00:45:21,319 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2003))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ 24 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2002) .cse1 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int))) (<= 0 (+ 20 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2002) (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2025-03-09 00:45:21,336 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int)) (v_ArrVal_2000 (Array Int Int))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2001))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_2003))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2000) .cse0 v_ArrVal_2002) .cse1 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 24) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int)) (v_ArrVal_2000 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2001))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2000) .cse5 v_ArrVal_2002) (select (select (store .cse6 .cse5 v_ArrVal_2003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_2004))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) 20))))) is different from false [2025-03-09 00:45:21,356 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int)) (v_ArrVal_2000 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2001))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_2003))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2000) .cse1 v_ArrVal_2002) .cse2 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int)) (v_ArrVal_2000 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse7 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2001))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2000) .cse6 v_ArrVal_2002) (select (select (store .cse7 .cse6 v_ArrVal_2003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2004))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20)))))) is different from false [2025-03-09 00:45:21,408 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2005 (Array Int Int)) (v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int)) (v_ArrVal_2011 (Array Int Int)) (v_ArrVal_2000 (Array Int Int)) (v_ArrVal_2010 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2011))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_2001))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_2003))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2010) .cse0 v_ArrVal_2000) .cse1 v_ArrVal_2002) .cse2 v_ArrVal_2004) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_2005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_2004 (Array Int Int)) (v_ArrVal_2003 (Array Int Int)) (v_ArrVal_2002 (Array Int Int)) (v_ArrVal_2001 (Array Int Int)) (v_ArrVal_2011 (Array Int Int)) (v_ArrVal_2000 (Array Int Int)) (v_ArrVal_2010 (Array Int Int))) (<= 0 (+ (select (select (let ((.cse10 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2011))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_2001))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2010) .cse7 v_ArrVal_2000) .cse8 v_ArrVal_2002) (select (select (store .cse9 .cse8 v_ArrVal_2003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2004))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20))))) is different from false [2025-03-09 00:45:21,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324736795] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:21,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:45:21,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 19 [2025-03-09 00:45:21,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204276256] [2025-03-09 00:45:21,411 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:45:21,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-09 00:45:21,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:21,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-09 00:45:21,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=394, Unknown=7, NotChecked=322, Total=812 [2025-03-09 00:45:21,412 INFO L87 Difference]: Start difference. First operand 1500 states and 1749 transitions. Second operand has 20 states, 18 states have (on average 7.722222222222222) internal successors, (139), 20 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:24,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:24,424 INFO L93 Difference]: Finished difference Result 1502 states and 1756 transitions. [2025-03-09 00:45:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 00:45:24,424 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 7.722222222222222) internal successors, (139), 20 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2025-03-09 00:45:24,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:24,426 INFO L225 Difference]: With dead ends: 1502 [2025-03-09 00:45:24,426 INFO L226 Difference]: Without dead ends: 1502 [2025-03-09 00:45:24,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=143, Invalid=690, Unknown=7, NotChecked=420, Total=1260 [2025-03-09 00:45:24,427 INFO L435 NwaCegarLoop]: 983 mSDtfsCounter, 1526 mSDsluCounter, 6327 mSDsCounter, 0 mSdLazyCounter, 7165 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 7310 SdHoareTripleChecker+Invalid, 7203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 7165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:24,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 7310 Invalid, 7203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 7165 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-03-09 00:45:24,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2025-03-09 00:45:24,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1484. [2025-03-09 00:45:24,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1013 states have (on average 1.686080947680158) internal successors, (1708), 1473 states have internal predecessors, (1708), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:45:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1732 transitions. [2025-03-09 00:45:24,438 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1732 transitions. Word has length 93 [2025-03-09 00:45:24,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:24,438 INFO L471 AbstractCegarLoop]: Abstraction has 1484 states and 1732 transitions. [2025-03-09 00:45:24,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 7.722222222222222) internal successors, (139), 20 states have internal predecessors, (139), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 00:45:24,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1732 transitions. [2025-03-09 00:45:24,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-09 00:45:24,438 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:24,439 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:24,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 00:45:24,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-09 00:45:24,643 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr597REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:24,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:24,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1221419374, now seen corresponding path program 1 times [2025-03-09 00:45:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:24,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283368280] [2025-03-09 00:45:24,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:24,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:24,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-09 00:45:24,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-09 00:45:24,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:24,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:25,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:25,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:25,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283368280] [2025-03-09 00:45:25,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283368280] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:45:25,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:45:25,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-03-09 00:45:25,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403804999] [2025-03-09 00:45:25,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:45:25,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-09 00:45:25,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:25,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-09 00:45:25,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2025-03-09 00:45:25,084 INFO L87 Difference]: Start difference. First operand 1484 states and 1732 transitions. Second operand has 17 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:27,250 INFO L93 Difference]: Finished difference Result 1507 states and 1761 transitions. [2025-03-09 00:45:27,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 00:45:27,251 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2025-03-09 00:45:27,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:27,253 INFO L225 Difference]: With dead ends: 1507 [2025-03-09 00:45:27,253 INFO L226 Difference]: Without dead ends: 1507 [2025-03-09 00:45:27,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=579, Unknown=0, NotChecked=0, Total=702 [2025-03-09 00:45:27,254 INFO L435 NwaCegarLoop]: 977 mSDtfsCounter, 1538 mSDsluCounter, 8600 mSDsCounter, 0 mSdLazyCounter, 6555 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1553 SdHoareTripleChecker+Valid, 9577 SdHoareTripleChecker+Invalid, 6582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:27,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1553 Valid, 9577 Invalid, 6582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 6555 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-09 00:45:27,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2025-03-09 00:45:27,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1503. [2025-03-09 00:45:27,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1031 states have (on average 1.6760426770126091) internal successors, (1728), 1491 states have internal predecessors, (1728), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:27,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1753 transitions. [2025-03-09 00:45:27,283 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1753 transitions. Word has length 96 [2025-03-09 00:45:27,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:27,283 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1753 transitions. [2025-03-09 00:45:27,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.266666666666667) internal successors, (94), 16 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:27,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1753 transitions. [2025-03-09 00:45:27,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-09 00:45:27,284 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:27,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:27,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-03-09 00:45:27,284 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr598REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:27,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1221419373, now seen corresponding path program 1 times [2025-03-09 00:45:27,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:27,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67881114] [2025-03-09 00:45:27,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:27,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:27,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-03-09 00:45:27,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-03-09 00:45:27,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:27,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:28,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:28,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67881114] [2025-03-09 00:45:28,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67881114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:45:28,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:45:28,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-09 00:45:28,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910040551] [2025-03-09 00:45:28,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:45:28,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 00:45:28,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:28,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 00:45:28,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2025-03-09 00:45:28,084 INFO L87 Difference]: Start difference. First operand 1503 states and 1753 transitions. Second operand has 18 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:30,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:30,903 INFO L93 Difference]: Finished difference Result 1506 states and 1760 transitions. [2025-03-09 00:45:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 00:45:30,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2025-03-09 00:45:30,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:30,905 INFO L225 Difference]: With dead ends: 1506 [2025-03-09 00:45:30,905 INFO L226 Difference]: Without dead ends: 1506 [2025-03-09 00:45:30,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2025-03-09 00:45:30,906 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 1537 mSDsluCounter, 6307 mSDsCounter, 0 mSdLazyCounter, 7235 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1552 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 7264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 7235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:30,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1552 Valid, 7285 Invalid, 7264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 7235 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-09 00:45:30,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2025-03-09 00:45:30,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1503. [2025-03-09 00:45:30,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1031 states have (on average 1.6750727449078564) internal successors, (1727), 1491 states have internal predecessors, (1727), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1752 transitions. [2025-03-09 00:45:30,915 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1752 transitions. Word has length 96 [2025-03-09 00:45:30,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:30,915 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1752 transitions. [2025-03-09 00:45:30,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.875) internal successors, (94), 17 states have internal predecessors, (94), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 00:45:30,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1752 transitions. [2025-03-09 00:45:30,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-09 00:45:30,915 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:30,916 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:30,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-09 00:45:30,916 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr597REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:30,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:30,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2079292841, now seen corresponding path program 1 times [2025-03-09 00:45:30,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:30,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187230791] [2025-03-09 00:45:30,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:30,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:30,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-09 00:45:30,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-09 00:45:30,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:30,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:31,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:31,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:31,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187230791] [2025-03-09 00:45:31,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187230791] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:31,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739390187] [2025-03-09 00:45:31,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:31,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:31,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:45:31,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:45:31,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 00:45:31,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-09 00:45:31,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-09 00:45:31,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:31,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:31,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-03-09 00:45:31,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:45:31,676 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 [2025-03-09 00:45:31,728 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:31,728 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 [2025-03-09 00:45:31,746 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 19 treesize of output 1 [2025-03-09 00:45:31,815 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:31,815 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 42 treesize of output 41 [2025-03-09 00:45:31,838 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:31,838 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 42 treesize of output 41 [2025-03-09 00:45:31,873 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:31,873 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 42 treesize of output 41 [2025-03-09 00:45:31,901 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:31,902 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 42 treesize of output 41 [2025-03-09 00:45:31,937 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:31,937 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 42 treesize of output 41 [2025-03-09 00:45:31,943 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 31 treesize of output 13 [2025-03-09 00:45:31,950 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2025-03-09 00:45:31,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 14 [2025-03-09 00:45:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:31,961 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:45:31,982 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2351 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem55#1.base| v_ArrVal_2351) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2025-03-09 00:45:31,985 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2351 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2351) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2025-03-09 00:45:31,989 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2351 (Array Int Int)) (v_ArrVal_2350 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2350))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2351)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-03-09 00:45:32,081 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2349 (Array Int Int)) (v_ArrVal_2348 (Array Int Int)) (v_ArrVal_2351 (Array Int Int)) (v_ArrVal_2350 (Array Int Int))) (= (select |c_#valid| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2348))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2349)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2350)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2351)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) 1)) is different from false [2025-03-09 00:45:32,160 INFO L349 Elim1Store]: treesize reduction 5, result has 97.5 percent of original size [2025-03-09 00:45:32,161 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 201 treesize of output 200 [2025-03-09 00:45:32,166 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2349 (Array Int Int)) (v_ArrVal_2348 (Array Int Int)) (v_ArrVal_2355 (Array Int Int)) (v_ArrVal_2351 (Array Int Int)) (v_ArrVal_2350 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2355))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2348)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2349)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2350)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2351)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem50#1.base|)) is different from false [2025-03-09 00:45:32,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739390187] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:32,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:45:32,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 23 [2025-03-09 00:45:32,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357588022] [2025-03-09 00:45:32,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:45:32,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-09 00:45:32,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:32,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-09 00:45:32,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=614, Unknown=36, NotChecked=280, Total=1056 [2025-03-09 00:45:32,169 INFO L87 Difference]: Start difference. First operand 1503 states and 1752 transitions. Second operand has 24 states, 21 states have (on average 7.095238095238095) internal successors, (149), 24 states have internal predecessors, (149), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:45:33,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:33,980 INFO L93 Difference]: Finished difference Result 1505 states and 1759 transitions. [2025-03-09 00:45:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 00:45:33,981 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 7.095238095238095) internal successors, (149), 24 states have internal predecessors, (149), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2025-03-09 00:45:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:33,983 INFO L225 Difference]: With dead ends: 1505 [2025-03-09 00:45:33,983 INFO L226 Difference]: Without dead ends: 1505 [2025-03-09 00:45:33,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=211, Invalid=1033, Unknown=36, NotChecked=360, Total=1640 [2025-03-09 00:45:33,984 INFO L435 NwaCegarLoop]: 976 mSDtfsCounter, 1528 mSDsluCounter, 6705 mSDsCounter, 0 mSdLazyCounter, 5301 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 7681 SdHoareTripleChecker+Invalid, 5342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 5301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:33,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 7681 Invalid, 5342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 5301 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-03-09 00:45:33,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2025-03-09 00:45:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1502. [2025-03-09 00:45:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1031 states have (on average 1.6741028128031037) internal successors, (1726), 1490 states have internal predecessors, (1726), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2025-03-09 00:45:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1751 transitions. [2025-03-09 00:45:33,996 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1751 transitions. Word has length 97 [2025-03-09 00:45:33,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:33,996 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 1751 transitions. [2025-03-09 00:45:33,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 7.095238095238095) internal successors, (149), 24 states have internal predecessors, (149), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:45:33,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1751 transitions. [2025-03-09 00:45:33,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-09 00:45:33,996 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:33,996 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:34,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-09 00:45:34,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:34,197 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr598REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:34,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:34,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2079292842, now seen corresponding path program 1 times [2025-03-09 00:45:34,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:34,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9630142] [2025-03-09 00:45:34,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:34,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:34,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-09 00:45:34,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-09 00:45:34,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:34,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:34,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:34,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:34,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9630142] [2025-03-09 00:45:34,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9630142] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:34,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385075573] [2025-03-09 00:45:34,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:34,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 00:45:34,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 00:45:34,908 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 00:45:34,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 00:45:35,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-09 00:45:35,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-09 00:45:35,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:35,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:35,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 53 conjuncts are in the unsatisfiable core [2025-03-09 00:45:35,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 00:45:35,125 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 [2025-03-09 00:45:35,186 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:35,186 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 [2025-03-09 00:45:35,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2025-03-09 00:45:35,207 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 19 treesize of output 1 [2025-03-09 00:45:35,210 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 13 treesize of output 9 [2025-03-09 00:45:35,263 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 22 treesize of output 10 [2025-03-09 00:45:35,265 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 9 treesize of output 3 [2025-03-09 00:45:35,374 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:35,374 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 73 treesize of output 66 [2025-03-09 00:45:35,380 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 30 treesize of output 13 [2025-03-09 00:45:35,462 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:35,462 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 73 treesize of output 66 [2025-03-09 00:45:35,467 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 30 treesize of output 13 [2025-03-09 00:45:35,532 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:35,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 66 [2025-03-09 00:45:35,537 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 30 treesize of output 13 [2025-03-09 00:45:35,602 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:35,602 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 73 treesize of output 66 [2025-03-09 00:45:35,608 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 30 treesize of output 13 [2025-03-09 00:45:35,677 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2025-03-09 00:45:35,677 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 73 treesize of output 66 [2025-03-09 00:45:35,682 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 30 treesize of output 13 [2025-03-09 00:45:35,697 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 42 treesize of output 18 [2025-03-09 00:45:35,699 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 9 treesize of output 3 [2025-03-09 00:45:35,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2025-03-09 00:45:35,740 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2025-03-09 00:45:35,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 21 [2025-03-09 00:45:35,748 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-03-09 00:45:35,748 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 [2025-03-09 00:45:35,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:35,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 00:45:36,057 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (or (forall ((v_ArrVal_2539 (Array Int Int)) (v_ArrVal_2542 (Array Int Int)) (v_ArrVal_2540 (Array Int Int))) (< 0 (+ 1 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2539) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2540) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2542) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc57#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc57#1.base_7|) 0)))) (forall ((v_ArrVal_2539 (Array Int Int)) (v_ArrVal_2542 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc57#1.base_7| Int) (v_ArrVal_2541 (Array Int Int)) (v_ArrVal_2540 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc57#1.base_7|) 0)) (forall ((v_ArrVal_2543 Int)) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2540))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (<= (+ 4 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2539) .cse1 v_ArrVal_2542) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc57#1.base_7| v_ArrVal_2543) (select (select (store .cse2 .cse1 v_ArrVal_2541) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))))))) is different from false [2025-03-09 00:45:36,962 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (or (forall ((|v_ULTIMATE.start_main_#t~malloc57#1.base_7| Int)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc57#1.base_7|) 0))) (forall ((v_ArrVal_2539 (Array Int Int)) (v_ArrVal_2538 (Array Int Int)) (v_ArrVal_2537 (Array Int Int)) (v_ArrVal_2536 (Array Int Int)) (v_ArrVal_2535 (Array Int Int)) (v_ArrVal_2542 (Array Int Int)) (v_ArrVal_2540 (Array Int Int))) (< 0 (+ (select (select (let ((.cse5 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2536))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_2538))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2535) .cse1 v_ArrVal_2537) .cse2 v_ArrVal_2539) (select (select (store .cse3 .cse2 v_ArrVal_2540) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_2542))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 1)))) (forall ((v_ArrVal_2539 (Array Int Int)) (v_ArrVal_2538 (Array Int Int)) (v_ArrVal_2537 (Array Int Int)) (v_ArrVal_2536 (Array Int Int)) (v_ArrVal_2535 (Array Int Int)) (v_ArrVal_2542 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc57#1.base_7| Int) (v_ArrVal_2541 (Array Int Int)) (v_ArrVal_2540 (Array Int Int))) (or (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc57#1.base_7|) 0)) (forall ((v_ArrVal_2543 Int)) (let ((.cse11 (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2536))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_2538))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_2540))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ 4 (select (select (store (store (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_2535) .cse6 v_ArrVal_2537) .cse7 v_ArrVal_2539) .cse8 v_ArrVal_2542) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc57#1.base_7| v_ArrVal_2543) (select (select (store .cse9 .cse8 v_ArrVal_2541) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))))))) is different from false [2025-03-09 00:45:37,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-09 00:45:37,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 604 treesize of output 622 [2025-03-09 00:45:37,959 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_prenex_19 (Array Int Int)) (v_prenex_21 (Array Int Int)) (v_prenex_20 (Array Int Int)) (v_prenex_24 (Array Int Int)) (v_prenex_23 (Array Int Int)) (v_prenex_22 (Array Int Int)) (v_prenex_18 (Array Int Int)) (v_prenex_17 (Array Int Int)) (v_prenex_26 (Array Int Int))) (< 0 (+ (select (select (let ((.cse6 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_prenex_18))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse0 v_prenex_22))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_prenex_19))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_prenex_20) .cse0 v_prenex_23) .cse1 v_prenex_21) .cse2 v_prenex_17) (select (select (store .cse3 .cse2 v_prenex_26) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_prenex_24))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 1))) (forall ((v_ArrVal_2539 (Array Int Int)) (v_ArrVal_2549 (Array Int Int)) (v_ArrVal_2538 (Array Int Int)) (v_ArrVal_2548 (Array Int Int)) (v_ArrVal_2537 (Array Int Int)) (v_ArrVal_2536 (Array Int Int)) (v_ArrVal_2535 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc57#1.base_7| Int) (v_ArrVal_2542 (Array Int Int)) (v_ArrVal_2541 (Array Int Int)) (v_ArrVal_2543 Int) (v_ArrVal_2540 (Array Int Int))) (or (let ((.cse14 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2549))) (let ((.cse7 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse13 (store .cse14 .cse7 v_ArrVal_2536))) (let ((.cse8 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse12 (store .cse13 .cse8 v_ArrVal_2538))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_2540))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (< (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2548) .cse7 v_ArrVal_2535) .cse8 v_ArrVal_2537) .cse9 v_ArrVal_2539) .cse10 v_ArrVal_2542) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 3) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc57#1.base_7| v_ArrVal_2543) (select (select (store .cse11 .cse10 v_ArrVal_2541) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) (= |v_ULTIMATE.start_main_#t~malloc57#1.base_7| |c_ULTIMATE.start_main_#t~mem50#1.base|))) (forall ((v_ArrVal_2539 (Array Int Int)) (v_ArrVal_2549 (Array Int Int)) (v_ArrVal_2538 (Array Int Int)) (v_ArrVal_2548 (Array Int Int)) (v_ArrVal_2537 (Array Int Int)) (v_ArrVal_2536 (Array Int Int)) (v_ArrVal_2535 (Array Int Int)) (v_ArrVal_2542 (Array Int Int)) (|v_ULTIMATE.start_main_#t~malloc57#1.base_7| Int) (v_ArrVal_2541 (Array Int Int)) (v_ArrVal_2543 Int) (v_ArrVal_2540 (Array Int Int))) (or (let ((.cse22 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2549))) (let ((.cse15 (select (select .cse22 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse21 (store .cse22 .cse15 v_ArrVal_2536))) (let ((.cse16 (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse20 (store .cse21 .cse16 v_ArrVal_2538))) (let ((.cse17 (select (select .cse20 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse19 (store .cse20 .cse17 v_ArrVal_2540))) (let ((.cse18 (select (select .cse19 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (< (+ (select (select (store (store (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2548) .cse15 v_ArrVal_2535) .cse16 v_ArrVal_2537) .cse17 v_ArrVal_2539) .cse18 v_ArrVal_2542) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 3) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc57#1.base_7| v_ArrVal_2543) (select (select (store .cse19 .cse18 v_ArrVal_2541) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) (= |v_ULTIMATE.start_main_#t~malloc57#1.base_7| |c_ULTIMATE.start_main_#t~mem50#1.base|))))) is different from false [2025-03-09 00:45:37,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385075573] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 00:45:37,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 00:45:37,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 31 [2025-03-09 00:45:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245763211] [2025-03-09 00:45:37,964 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 00:45:37,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-09 00:45:37,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:37,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-09 00:45:37,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1412, Unknown=54, NotChecked=240, Total=1892 [2025-03-09 00:45:37,966 INFO L87 Difference]: Start difference. First operand 1502 states and 1751 transitions. Second operand has 32 states, 29 states have (on average 5.413793103448276) internal successors, (157), 30 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:45:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 00:45:43,064 INFO L93 Difference]: Finished difference Result 1504 states and 1758 transitions. [2025-03-09 00:45:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-09 00:45:43,065 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 5.413793103448276) internal successors, (157), 30 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 97 [2025-03-09 00:45:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 00:45:43,067 INFO L225 Difference]: With dead ends: 1504 [2025-03-09 00:45:43,067 INFO L226 Difference]: Without dead ends: 1504 [2025-03-09 00:45:43,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=321, Invalid=2187, Unknown=54, NotChecked=300, Total=2862 [2025-03-09 00:45:43,067 INFO L435 NwaCegarLoop]: 976 mSDtfsCounter, 1528 mSDsluCounter, 9666 mSDsCounter, 0 mSdLazyCounter, 10324 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1543 SdHoareTripleChecker+Valid, 10642 SdHoareTripleChecker+Invalid, 10358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 10324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2025-03-09 00:45:43,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1543 Valid, 10642 Invalid, 10358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 10324 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2025-03-09 00:45:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2025-03-09 00:45:43,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1482. [2025-03-09 00:45:43,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1013 states have (on average 1.684106614017769) internal successors, (1706), 1471 states have internal predecessors, (1706), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 00:45:43,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1730 transitions. [2025-03-09 00:45:43,081 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1730 transitions. Word has length 97 [2025-03-09 00:45:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 00:45:43,081 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1730 transitions. [2025-03-09 00:45:43,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 5.413793103448276) internal successors, (157), 30 states have internal predecessors, (157), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 00:45:43,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1730 transitions. [2025-03-09 00:45:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-09 00:45:43,082 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 00:45:43,082 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 00:45:43,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-09 00:45:43,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-09 00:45:43,282 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr593REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2025-03-09 00:45:43,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 00:45:43,282 INFO L85 PathProgramCache]: Analyzing trace with hash -339966016, now seen corresponding path program 1 times [2025-03-09 00:45:43,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 00:45:43,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225104458] [2025-03-09 00:45:43,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 00:45:43,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 00:45:43,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-09 00:45:43,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-09 00:45:43,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 00:45:43,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 00:45:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 00:45:43,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 00:45:43,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225104458] [2025-03-09 00:45:43,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225104458] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 00:45:43,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 00:45:43,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-09 00:45:43,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706509730] [2025-03-09 00:45:43,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 00:45:43,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 00:45:43,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 00:45:43,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 00:45:43,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-03-09 00:45:43,744 INFO L87 Difference]: Start difference. First operand 1482 states and 1730 transitions. Second operand has 15 states, 14 states have (on average 6.928571428571429) internal successors, (97), 15 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)