./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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_FNV_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 c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:47:59,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:47:59,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 02:47:59,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:47:59,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:47:59,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:47:59,169 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:47:59,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:47:59,169 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:47:59,172 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:47:59,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:47:59,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:47:59,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:47:59,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:47:59,174 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:47:59,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:47:59,175 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:47:59,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:47:59,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:47:59,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:47:59,175 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:47:59,177 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:47:59,177 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:47:59,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:47:59,177 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:47:59,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:47:59,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:47:59,178 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:47:59,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:47:59,178 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:47:59,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:47:59,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:47:59,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:47:59,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:47:59,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:47:59,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:47:59,179 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 02:47:59,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 02:47:59,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:47:59,180 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:47:59,180 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:47:59,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:47:59,181 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2024-11-17 02:47:59,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:47:59,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:47:59,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:47:59,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:47:59,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:47:59,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2024-11-17 02:48:00,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:48:00,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:48:00,806 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2024-11-17 02:48:00,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deb311c45/f619f19303f749b9a74d4ca3c598c259/FLAG67d913e84 [2024-11-17 02:48:01,140 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deb311c45/f619f19303f749b9a74d4ca3c598c259 [2024-11-17 02:48:01,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:48:01,143 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:48:01,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:48:01,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:48:01,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:48:01,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f644356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01, skipping insertion in model container [2024-11-17 02:48:01,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,196 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:48:01,506 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,538 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,563 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,571 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,578 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,618 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,623 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,624 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,627 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,641 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,642 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,643 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,643 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:01,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:48:01,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 02:48:01,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:48:01,786 INFO L204 MainTranslator]: Completed translation [2024-11-17 02:48:01,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01 WrapperNode [2024-11-17 02:48:01,787 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:48:01,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 02:48:01,788 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 02:48:01,788 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 02:48:01,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,886 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2006 [2024-11-17 02:48:01,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 02:48:01,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 02:48:01,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 02:48:01,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 02:48:01,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,913 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,979 INFO L175 MemorySlicer]: Split 349 memory accesses to 3 slices as follows [2, 323, 24]. 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, 82, 1]. [2024-11-17 02:48:01,979 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:01,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:02,022 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:02,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:02,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:02,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:02,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 02:48:02,053 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 02:48:02,053 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 02:48:02,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 02:48:02,054 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (1/1) ... [2024-11-17 02:48:02,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:48:02,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:02,082 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) [2024-11-17 02:48:02,084 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 [2024-11-17 02:48:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-17 02:48:02,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-17 02:48:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 02:48:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 02:48:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 02:48:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 02:48:02,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 02:48:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 02:48:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 02:48:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 02:48:02,120 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 02:48:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 02:48:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 02:48:02,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 02:48:02,283 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 02:48:02,285 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 02:48:04,218 INFO L1250 $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; [2024-11-17 02:48:04,365 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-17 02:48:04,365 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 02:48:04,432 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 02:48:04,434 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-17 02:48:04,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:48:04 BoogieIcfgContainer [2024-11-17 02:48:04,435 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 02:48:04,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 02:48:04,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 02:48:04,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 02:48:04,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:48:01" (1/3) ... [2024-11-17 02:48:04,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18148afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:48:04, skipping insertion in model container [2024-11-17 02:48:04,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:01" (2/3) ... [2024-11-17 02:48:04,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18148afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:48:04, skipping insertion in model container [2024-11-17 02:48:04,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:48:04" (3/3) ... [2024-11-17 02:48:04,443 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-1.i [2024-11-17 02:48:04,455 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 02:48:04,456 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 712 error locations. [2024-11-17 02:48:04,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 02:48:04,524 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;@534932f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 02:48:04,524 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2024-11-17 02:48:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand has 1768 states, 1045 states have (on average 2.0047846889952154) internal successors, (2095), 1758 states have internal predecessors, (2095), 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) [2024-11-17 02:48:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 02:48:04,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:04,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 02:48:04,540 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)] === [2024-11-17 02:48:04,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:04,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1279329309, now seen corresponding path program 1 times [2024-11-17 02:48:04,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:04,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352223047] [2024-11-17 02:48:04,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:04,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:04,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:04,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352223047] [2024-11-17 02:48:04,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352223047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:04,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:04,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:04,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735213057] [2024-11-17 02:48:04,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:04,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 02:48:04,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:04,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 02:48:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 02:48:04,785 INFO L87 Difference]: Start difference. First operand has 1768 states, 1045 states have (on average 2.0047846889952154) internal successors, (2095), 1758 states have internal predecessors, (2095), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:04,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:04,929 INFO L93 Difference]: Finished difference Result 1746 states and 2006 transitions. [2024-11-17 02:48:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 02:48:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-17 02:48:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:04,950 INFO L225 Difference]: With dead ends: 1746 [2024-11-17 02:48:04,950 INFO L226 Difference]: Without dead ends: 1743 [2024-11-17 02:48:04,952 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 02:48:04,955 INFO L432 NwaCegarLoop]: 1943 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, 1943 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 [2024-11-17 02:48:04,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1943 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-17 02:48:05,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2024-11-17 02:48:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1032 states have (on average 1.9176356589147288) internal successors, (1979), 1733 states have internal predecessors, (1979), 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) [2024-11-17 02:48:05,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2003 transitions. [2024-11-17 02:48:05,043 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2003 transitions. Word has length 6 [2024-11-17 02:48:05,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:05,043 INFO L471 AbstractCegarLoop]: Abstraction has 1743 states and 2003 transitions. [2024-11-17 02:48:05,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:05,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2003 transitions. [2024-11-17 02:48:05,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 02:48:05,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:05,044 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 02:48:05,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 02:48:05,044 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)] === [2024-11-17 02:48:05,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:05,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1279329340, now seen corresponding path program 1 times [2024-11-17 02:48:05,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:05,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910213977] [2024-11-17 02:48:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:05,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:05,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:05,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910213977] [2024-11-17 02:48:05,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910213977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:05,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:05,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:05,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165332685] [2024-11-17 02:48:05,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:05,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:05,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:05,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:05,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:05,136 INFO L87 Difference]: Start difference. First operand 1743 states and 2003 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:06,167 INFO L93 Difference]: Finished difference Result 1980 states and 2328 transitions. [2024-11-17 02:48:06,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:06,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-17 02:48:06,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:06,181 INFO L225 Difference]: With dead ends: 1980 [2024-11-17 02:48:06,183 INFO L226 Difference]: Without dead ends: 1980 [2024-11-17 02:48:06,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:06,185 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1763 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:06,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 1859 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-17 02:48:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2024-11-17 02:48:06,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1651. [2024-11-17 02:48:06,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1651 states, 1032 states have (on average 1.8284883720930232) internal successors, (1887), 1641 states have internal predecessors, (1887), 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) [2024-11-17 02:48:06,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1911 transitions. [2024-11-17 02:48:06,224 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1911 transitions. Word has length 6 [2024-11-17 02:48:06,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:06,225 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 1911 transitions. [2024-11-17 02:48:06,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:06,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1911 transitions. [2024-11-17 02:48:06,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 02:48:06,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:06,226 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 02:48:06,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 02:48:06,226 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)] === [2024-11-17 02:48:06,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1279329341, now seen corresponding path program 1 times [2024-11-17 02:48:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:06,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900982083] [2024-11-17 02:48:06,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:06,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:06,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:06,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:06,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900982083] [2024-11-17 02:48:06,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900982083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:06,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:06,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:06,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789200959] [2024-11-17 02:48:06,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:06,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:06,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:06,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:06,365 INFO L87 Difference]: Start difference. First operand 1651 states and 1911 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:07,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:07,415 INFO L93 Difference]: Finished difference Result 2404 states and 2828 transitions. [2024-11-17 02:48:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-17 02:48:07,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:07,421 INFO L225 Difference]: With dead ends: 2404 [2024-11-17 02:48:07,421 INFO L226 Difference]: Without dead ends: 2404 [2024-11-17 02:48:07,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:07,422 INFO L432 NwaCegarLoop]: 1909 mSDtfsCounter, 1236 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 2823 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 [2024-11-17 02:48:07,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 2823 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 02:48:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2024-11-17 02:48:07,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1921. [2024-11-17 02:48:07,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1312 states have (on average 1.8048780487804879) internal successors, (2368), 1911 states have internal predecessors, (2368), 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) [2024-11-17 02:48:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2392 transitions. [2024-11-17 02:48:07,452 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2392 transitions. Word has length 6 [2024-11-17 02:48:07,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:07,452 INFO L471 AbstractCegarLoop]: Abstraction has 1921 states and 2392 transitions. [2024-11-17 02:48:07,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:07,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2392 transitions. [2024-11-17 02:48:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 02:48:07,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:07,453 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:07,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 02:48:07,454 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 709 more)] === [2024-11-17 02:48:07,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:07,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1020955448, now seen corresponding path program 1 times [2024-11-17 02:48:07,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:07,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017607810] [2024-11-17 02:48:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:07,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:07,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:07,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:07,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017607810] [2024-11-17 02:48:07,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017607810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:07,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:07,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:07,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307174519] [2024-11-17 02:48:07,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:07,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:07,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:07,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:07,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:07,492 INFO L87 Difference]: Start difference. First operand 1921 states and 2392 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:07,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:07,669 INFO L93 Difference]: Finished difference Result 3822 states and 4764 transitions. [2024-11-17 02:48:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:07,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2024-11-17 02:48:07,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:07,679 INFO L225 Difference]: With dead ends: 3822 [2024-11-17 02:48:07,679 INFO L226 Difference]: Without dead ends: 3822 [2024-11-17 02:48:07,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:07,680 INFO L432 NwaCegarLoop]: 2067 mSDtfsCounter, 1855 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:07,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 3894 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:07,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2024-11-17 02:48:07,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 1925. [2024-11-17 02:48:07,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1316 states have (on average 1.8024316109422491) internal successors, (2372), 1915 states have internal predecessors, (2372), 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) [2024-11-17 02:48:07,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2396 transitions. [2024-11-17 02:48:07,713 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2396 transitions. Word has length 8 [2024-11-17 02:48:07,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:07,714 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2396 transitions. [2024-11-17 02:48:07,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:07,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2396 transitions. [2024-11-17 02:48:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 02:48:07,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:07,714 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:07,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 02:48:07,715 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)] === [2024-11-17 02:48:07,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:07,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1400782018, now seen corresponding path program 1 times [2024-11-17 02:48:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:07,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230211981] [2024-11-17 02:48:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:07,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:07,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:07,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:07,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230211981] [2024-11-17 02:48:07,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230211981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:07,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:07,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:07,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904114519] [2024-11-17 02:48:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:07,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:07,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:07,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:07,781 INFO L87 Difference]: Start difference. First operand 1925 states and 2396 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:08,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:08,740 INFO L93 Difference]: Finished difference Result 1951 states and 2449 transitions. [2024-11-17 02:48:08,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:08,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-17 02:48:08,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:08,746 INFO L225 Difference]: With dead ends: 1951 [2024-11-17 02:48:08,746 INFO L226 Difference]: Without dead ends: 1951 [2024-11-17 02:48:08,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:08,747 INFO L432 NwaCegarLoop]: 1123 mSDtfsCounter, 2031 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:08,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 2112 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-17 02:48:08,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2024-11-17 02:48:08,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1902. [2024-11-17 02:48:08,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1316 states have (on average 1.784954407294833) internal successors, (2349), 1892 states have internal predecessors, (2349), 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) [2024-11-17 02:48:08,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2373 transitions. [2024-11-17 02:48:08,768 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2373 transitions. Word has length 13 [2024-11-17 02:48:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:08,768 INFO L471 AbstractCegarLoop]: Abstraction has 1902 states and 2373 transitions. [2024-11-17 02:48:08,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:08,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2373 transitions. [2024-11-17 02:48:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 02:48:08,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:08,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:08,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 02:48:08,769 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)] === [2024-11-17 02:48:08,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:08,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1400782017, now seen corresponding path program 1 times [2024-11-17 02:48:08,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:08,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396189622] [2024-11-17 02:48:08,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:08,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:08,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:08,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:08,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396189622] [2024-11-17 02:48:08,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396189622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:08,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:08,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:08,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871408748] [2024-11-17 02:48:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:08,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:08,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:08,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:08,830 INFO L87 Difference]: Start difference. First operand 1902 states and 2373 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:08,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:08,919 INFO L93 Difference]: Finished difference Result 1827 states and 2270 transitions. [2024-11-17 02:48:08,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:08,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-17 02:48:08,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:08,925 INFO L225 Difference]: With dead ends: 1827 [2024-11-17 02:48:08,925 INFO L226 Difference]: Without dead ends: 1827 [2024-11-17 02:48:08,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:08,926 INFO L432 NwaCegarLoop]: 1709 mSDtfsCounter, 61 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:08,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3364 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-17 02:48:08,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1827. [2024-11-17 02:48:08,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1827 states, 1253 states have (on average 1.7924980047885075) internal successors, (2246), 1817 states have internal predecessors, (2246), 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) [2024-11-17 02:48:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2270 transitions. [2024-11-17 02:48:08,949 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2270 transitions. Word has length 13 [2024-11-17 02:48:08,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:08,950 INFO L471 AbstractCegarLoop]: Abstraction has 1827 states and 2270 transitions. [2024-11-17 02:48:08,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2270 transitions. [2024-11-17 02:48:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-17 02:48:08,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:08,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:08,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 02:48:08,951 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)] === [2024-11-17 02:48:08,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:08,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1826839390, now seen corresponding path program 1 times [2024-11-17 02:48:08,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:08,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200471539] [2024-11-17 02:48:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:08,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:09,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:09,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200471539] [2024-11-17 02:48:09,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200471539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:09,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:09,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:09,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610486791] [2024-11-17 02:48:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:09,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:09,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:09,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:09,004 INFO L87 Difference]: Start difference. First operand 1827 states and 2270 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:09,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:09,136 INFO L93 Difference]: Finished difference Result 1812 states and 2248 transitions. [2024-11-17 02:48:09,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:09,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-17 02:48:09,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:09,141 INFO L225 Difference]: With dead ends: 1812 [2024-11-17 02:48:09,141 INFO L226 Difference]: Without dead ends: 1812 [2024-11-17 02:48:09,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:09,141 INFO L432 NwaCegarLoop]: 1671 mSDtfsCounter, 45 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 4989 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:09,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 4989 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:09,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-11-17 02:48:09,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1812. [2024-11-17 02:48:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1245 states have (on average 1.7863453815261043) internal successors, (2224), 1802 states have internal predecessors, (2224), 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) [2024-11-17 02:48:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2248 transitions. [2024-11-17 02:48:09,161 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2248 transitions. Word has length 15 [2024-11-17 02:48:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:09,161 INFO L471 AbstractCegarLoop]: Abstraction has 1812 states and 2248 transitions. [2024-11-17 02:48:09,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2248 transitions. [2024-11-17 02:48:09,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 02:48:09,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:09,162 INFO L215 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] [2024-11-17 02:48:09,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 02:48:09,162 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)] === [2024-11-17 02:48:09,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash 2106893528, now seen corresponding path program 1 times [2024-11-17 02:48:09,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:09,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693068333] [2024-11-17 02:48:09,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:09,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:09,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:09,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:09,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693068333] [2024-11-17 02:48:09,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693068333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:09,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:09,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:09,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168770719] [2024-11-17 02:48:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:09,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:09,290 INFO L87 Difference]: Start difference. First operand 1812 states and 2248 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:10,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:10,414 INFO L93 Difference]: Finished difference Result 2342 states and 2758 transitions. [2024-11-17 02:48:10,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:10,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-17 02:48:10,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:10,421 INFO L225 Difference]: With dead ends: 2342 [2024-11-17 02:48:10,422 INFO L226 Difference]: Without dead ends: 2342 [2024-11-17 02:48:10,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:10,426 INFO L432 NwaCegarLoop]: 1405 mSDtfsCounter, 1241 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 3311 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:10,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 3311 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-17 02:48:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-17 02:48:10,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1808. [2024-11-17 02:48:10,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1245 states have (on average 1.783132530120482) internal successors, (2220), 1798 states have internal predecessors, (2220), 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) [2024-11-17 02:48:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2244 transitions. [2024-11-17 02:48:10,446 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2244 transitions. Word has length 29 [2024-11-17 02:48:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:10,446 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2244 transitions. [2024-11-17 02:48:10,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2244 transitions. [2024-11-17 02:48:10,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-17 02:48:10,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:10,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:10,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 02:48:10,448 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)] === [2024-11-17 02:48:10,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1736803853, now seen corresponding path program 1 times [2024-11-17 02:48:10,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:10,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202224272] [2024-11-17 02:48:10,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:10,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:10,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:10,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202224272] [2024-11-17 02:48:10,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202224272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:10,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:10,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:10,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251215886] [2024-11-17 02:48:10,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:10,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:10,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:10,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:10,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:10,515 INFO L87 Difference]: Start difference. First operand 1808 states and 2244 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:10,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:10,662 INFO L93 Difference]: Finished difference Result 1802 states and 2234 transitions. [2024-11-17 02:48:10,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:10,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-17 02:48:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:10,667 INFO L225 Difference]: With dead ends: 1802 [2024-11-17 02:48:10,667 INFO L226 Difference]: Without dead ends: 1802 [2024-11-17 02:48:10,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:10,668 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 21 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4975 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:10,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4975 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-17 02:48:10,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2024-11-17 02:48:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1239 states have (on average 1.7836965294592413) internal successors, (2210), 1792 states have internal predecessors, (2210), 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) [2024-11-17 02:48:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2234 transitions. [2024-11-17 02:48:10,684 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2234 transitions. Word has length 64 [2024-11-17 02:48:10,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:10,685 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2234 transitions. [2024-11-17 02:48:10,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:10,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2234 transitions. [2024-11-17 02:48:10,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-17 02:48:10,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:10,686 INFO L215 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] [2024-11-17 02:48:10,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 02:48:10,686 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)] === [2024-11-17 02:48:10,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash -475789525, now seen corresponding path program 1 times [2024-11-17 02:48:10,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:10,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534049773] [2024-11-17 02:48:10,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:10,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:10,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:10,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534049773] [2024-11-17 02:48:10,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534049773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:10,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:10,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:10,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477186419] [2024-11-17 02:48:10,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:10,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:10,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:10,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:10,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:10,803 INFO L87 Difference]: Start difference. First operand 1802 states and 2234 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:10,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:10,909 INFO L93 Difference]: Finished difference Result 1896 states and 2355 transitions. [2024-11-17 02:48:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:10,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2024-11-17 02:48:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:10,916 INFO L225 Difference]: With dead ends: 1896 [2024-11-17 02:48:10,916 INFO L226 Difference]: Without dead ends: 1896 [2024-11-17 02:48:10,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:10,916 INFO L432 NwaCegarLoop]: 1684 mSDtfsCounter, 54 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 3341 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 [2024-11-17 02:48:10,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 3341 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:10,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-11-17 02:48:10,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1896. [2024-11-17 02:48:10,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1333 states have (on average 1.7486871717929482) internal successors, (2331), 1886 states have internal predecessors, (2331), 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) [2024-11-17 02:48:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2355 transitions. [2024-11-17 02:48:10,937 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2355 transitions. Word has length 72 [2024-11-17 02:48:10,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:10,937 INFO L471 AbstractCegarLoop]: Abstraction has 1896 states and 2355 transitions. [2024-11-17 02:48:10,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:10,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2355 transitions. [2024-11-17 02:48:10,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-17 02:48:10,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:10,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:10,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 02:48:10,939 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)] === [2024-11-17 02:48:10,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:10,941 INFO L85 PathProgramCache]: Analyzing trace with hash -854221678, now seen corresponding path program 1 times [2024-11-17 02:48:10,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:10,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670082606] [2024-11-17 02:48:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:10,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:11,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:11,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670082606] [2024-11-17 02:48:11,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670082606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:11,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:11,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 02:48:11,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658030492] [2024-11-17 02:48:11,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:11,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 02:48:11,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:11,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 02:48:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:48:11,320 INFO L87 Difference]: Start difference. First operand 1896 states and 2355 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 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) [2024-11-17 02:48:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:12,350 INFO L93 Difference]: Finished difference Result 1812 states and 2271 transitions. [2024-11-17 02:48:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:12,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 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 [2024-11-17 02:48:12,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:12,355 INFO L225 Difference]: With dead ends: 1812 [2024-11-17 02:48:12,356 INFO L226 Difference]: Without dead ends: 1812 [2024-11-17 02:48:12,356 INFO L431 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 [2024-11-17 02:48:12,357 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 1580 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:12,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 1566 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 02:48:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-11-17 02:48:12,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1532. [2024-11-17 02:48:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1053 states have (on average 1.667616334283001) internal successors, (1756), 1522 states have internal predecessors, (1756), 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) [2024-11-17 02:48:12,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1780 transitions. [2024-11-17 02:48:12,372 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1780 transitions. Word has length 75 [2024-11-17 02:48:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:12,373 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1780 transitions. [2024-11-17 02:48:12,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 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) [2024-11-17 02:48:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1780 transitions. [2024-11-17 02:48:12,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 02:48:12,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:12,375 INFO L215 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] [2024-11-17 02:48:12,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 02:48:12,375 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)] === [2024-11-17 02:48:12,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:12,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1472879306, now seen corresponding path program 1 times [2024-11-17 02:48:12,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:12,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664058961] [2024-11-17 02:48:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:12,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:12,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:12,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664058961] [2024-11-17 02:48:12,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664058961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:12,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:12,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719598286] [2024-11-17 02:48:12,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:12,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:48:12,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:12,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:48:12,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:12,553 INFO L87 Difference]: Start difference. First operand 1532 states and 1780 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:13,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:13,411 INFO L93 Difference]: Finished difference Result 1531 states and 1779 transitions. [2024-11-17 02:48:13,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:13,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2024-11-17 02:48:13,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:13,415 INFO L225 Difference]: With dead ends: 1531 [2024-11-17 02:48:13,415 INFO L226 Difference]: Without dead ends: 1531 [2024-11-17 02:48:13,416 INFO L431 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 [2024-11-17 02:48:13,416 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 2 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 1944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:13,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4664 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 02:48:13,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-17 02:48:13,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1531. [2024-11-17 02:48:13,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1053 states have (on average 1.6666666666666667) internal successors, (1755), 1521 states have internal predecessors, (1755), 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) [2024-11-17 02:48:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1779 transitions. [2024-11-17 02:48:13,430 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1779 transitions. Word has length 80 [2024-11-17 02:48:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:13,430 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1779 transitions. [2024-11-17 02:48:13,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1779 transitions. [2024-11-17 02:48:13,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 02:48:13,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:13,431 INFO L215 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] [2024-11-17 02:48:13,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 02:48:13,431 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)] === [2024-11-17 02:48:13,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:13,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1472879305, now seen corresponding path program 1 times [2024-11-17 02:48:13,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:13,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667932076] [2024-11-17 02:48:13,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:13,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:13,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667932076] [2024-11-17 02:48:13,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667932076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:13,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:13,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:13,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615509368] [2024-11-17 02:48:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:13,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:48:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:13,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:48:13,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:13,767 INFO L87 Difference]: Start difference. First operand 1531 states and 1779 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:14,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:14,634 INFO L93 Difference]: Finished difference Result 1530 states and 1778 transitions. [2024-11-17 02:48:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:14,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 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 80 [2024-11-17 02:48:14,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:14,641 INFO L225 Difference]: With dead ends: 1530 [2024-11-17 02:48:14,642 INFO L226 Difference]: Without dead ends: 1530 [2024-11-17 02:48:14,642 INFO L431 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 [2024-11-17 02:48:14,642 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 1 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:14,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4692 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 02:48:14,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2024-11-17 02:48:14,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1530. [2024-11-17 02:48:14,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1052 states have (on average 1.667300380228137) internal successors, (1754), 1520 states have internal predecessors, (1754), 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) [2024-11-17 02:48:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 1778 transitions. [2024-11-17 02:48:14,657 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 1778 transitions. Word has length 80 [2024-11-17 02:48:14,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:14,657 INFO L471 AbstractCegarLoop]: Abstraction has 1530 states and 1778 transitions. [2024-11-17 02:48:14,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:14,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 1778 transitions. [2024-11-17 02:48:14,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-17 02:48:14,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:14,659 INFO L215 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] [2024-11-17 02:48:14,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 02:48:14,659 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)] === [2024-11-17 02:48:14,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1481159437, now seen corresponding path program 1 times [2024-11-17 02:48:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:14,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285228075] [2024-11-17 02:48:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:14,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:14,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:14,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:14,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285228075] [2024-11-17 02:48:14,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285228075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:14,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:14,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 02:48:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379621315] [2024-11-17 02:48:14,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:14,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 02:48:14,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 02:48:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 02:48:14,825 INFO L87 Difference]: Start difference. First operand 1530 states and 1778 transitions. Second operand has 7 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-11-17 02:48:16,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:16,113 INFO L93 Difference]: Finished difference Result 1542 states and 1796 transitions. [2024-11-17 02:48:16,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 02:48:16,113 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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 88 [2024-11-17 02:48:16,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:16,124 INFO L225 Difference]: With dead ends: 1542 [2024-11-17 02:48:16,124 INFO L226 Difference]: Without dead ends: 1542 [2024-11-17 02:48:16,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 02:48:16,124 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 17 mSDsluCounter, 5632 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7210 SdHoareTripleChecker+Invalid, 2697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:16,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7210 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 02:48:16,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-17 02:48:16,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1536. [2024-11-17 02:48:16,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1057 states have (on average 1.6660359508041627) internal successors, (1761), 1525 states have internal predecessors, (1761), 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) [2024-11-17 02:48:16,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 1791 transitions. [2024-11-17 02:48:16,140 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 1791 transitions. Word has length 88 [2024-11-17 02:48:16,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:16,140 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 1791 transitions. [2024-11-17 02:48:16,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 17.2) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-11-17 02:48:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 1791 transitions. [2024-11-17 02:48:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-17 02:48:16,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:16,141 INFO L215 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] [2024-11-17 02:48:16,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 02:48:16,141 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)] === [2024-11-17 02:48:16,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1481159436, now seen corresponding path program 1 times [2024-11-17 02:48:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:16,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650464464] [2024-11-17 02:48:16,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:16,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:16,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:16,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:16,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:16,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650464464] [2024-11-17 02:48:16,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650464464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:16,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:16,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 02:48:16,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537870596] [2024-11-17 02:48:16,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:16,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 02:48:16,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:16,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 02:48:16,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 02:48:16,600 INFO L87 Difference]: Start difference. First operand 1536 states and 1791 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-11-17 02:48:17,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:17,688 INFO L93 Difference]: Finished difference Result 1536 states and 1790 transitions. [2024-11-17 02:48:17,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:17,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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 88 [2024-11-17 02:48:17,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:17,691 INFO L225 Difference]: With dead ends: 1536 [2024-11-17 02:48:17,691 INFO L226 Difference]: Without dead ends: 1536 [2024-11-17 02:48:17,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-17 02:48:17,692 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 18 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 5999 SdHoareTripleChecker+Invalid, 2262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:17,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5999 Invalid, 2262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 02:48:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2024-11-17 02:48:17,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2024-11-17 02:48:17,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1057 states have (on average 1.6650898770104068) internal successors, (1760), 1525 states have internal predecessors, (1760), 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) [2024-11-17 02:48:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 1790 transitions. [2024-11-17 02:48:17,706 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 1790 transitions. Word has length 88 [2024-11-17 02:48:17,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:17,706 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 1790 transitions. [2024-11-17 02:48:17,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 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) [2024-11-17 02:48:17,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 1790 transitions. [2024-11-17 02:48:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 02:48:17,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:17,707 INFO L215 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] [2024-11-17 02:48:17,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 02:48:17,707 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)] === [2024-11-17 02:48:17,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:17,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1674677226, now seen corresponding path program 1 times [2024-11-17 02:48:17,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:17,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492150300] [2024-11-17 02:48:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:18,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:18,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:18,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492150300] [2024-11-17 02:48:18,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492150300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:18,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570331099] [2024-11-17 02:48:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:18,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:48:18,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:18,080 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) [2024-11-17 02:48:18,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 02:48:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:18,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-17 02:48:18,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:18,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:48:18,400 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:48:18,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:48:18,409 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 [2024-11-17 02:48:18,474 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:18,475 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 [2024-11-17 02:48:18,497 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 [2024-11-17 02:48:18,500 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:18,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:18,543 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2024-11-17 02:48:18,543 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 [2024-11-17 02:48:18,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570331099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:18,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:18,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2024-11-17 02:48:18,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479901605] [2024-11-17 02:48:18,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:18,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 02:48:18,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 02:48:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=195, Unknown=7, NotChecked=0, Total=240 [2024-11-17 02:48:18,580 INFO L87 Difference]: Start difference. First operand 1536 states and 1790 transitions. Second operand has 15 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:48:20,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:20,982 INFO L93 Difference]: Finished difference Result 1535 states and 1789 transitions. [2024-11-17 02:48:20,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 02:48:20,986 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2024-11-17 02:48:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:20,989 INFO L225 Difference]: With dead ends: 1535 [2024-11-17 02:48:20,989 INFO L226 Difference]: Without dead ends: 1535 [2024-11-17 02:48:20,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=451, Unknown=8, NotChecked=0, Total=552 [2024-11-17 02:48:20,989 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 1569 mSDsluCounter, 8955 mSDsCounter, 0 mSdLazyCounter, 6510 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1584 SdHoareTripleChecker+Valid, 9972 SdHoareTripleChecker+Invalid, 6536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:20,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 9972 Invalid, 6536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6510 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-17 02:48:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-11-17 02:48:21,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1535. [2024-11-17 02:48:21,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1057 states have (on average 1.664143803216651) internal successors, (1759), 1524 states have internal predecessors, (1759), 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) [2024-11-17 02:48:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1789 transitions. [2024-11-17 02:48:21,011 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1789 transitions. Word has length 89 [2024-11-17 02:48:21,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:21,012 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 1789 transitions. [2024-11-17 02:48:21,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 9.846153846153847) internal successors, (128), 13 states have internal predecessors, (128), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:48:21,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1789 transitions. [2024-11-17 02:48:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 02:48:21,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:21,013 INFO L215 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] [2024-11-17 02:48:21,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:21,216 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 [2024-11-17 02:48:21,217 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)] === [2024-11-17 02:48:21,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:21,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1674677225, now seen corresponding path program 1 times [2024-11-17 02:48:21,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:21,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940309382] [2024-11-17 02:48:21,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:21,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:21,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:21,729 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:21,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:21,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940309382] [2024-11-17 02:48:21,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940309382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:21,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267573294] [2024-11-17 02:48:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:21,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:48:21,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:21,731 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) [2024-11-17 02:48:21,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 02:48:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:21,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-17 02:48:21,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:21,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:48:22,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-17 02:48:22,013 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:48:22,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:48:22,024 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 [2024-11-17 02:48:22,030 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 [2024-11-17 02:48:22,077 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 [2024-11-17 02:48:22,080 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 [2024-11-17 02:48:22,166 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:22,166 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 [2024-11-17 02:48:22,171 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 [2024-11-17 02:48:22,200 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 [2024-11-17 02:48:22,203 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 [2024-11-17 02:48:22,206 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:22,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:22,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [267573294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:22,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:22,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 15 [2024-11-17 02:48:22,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141628227] [2024-11-17 02:48:22,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:22,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-17 02:48:22,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:22,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-17 02:48:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=274, Unknown=12, NotChecked=0, Total=342 [2024-11-17 02:48:22,311 INFO L87 Difference]: Start difference. First operand 1535 states and 1789 transitions. Second operand has 16 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 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) [2024-11-17 02:48:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:25,240 INFO L93 Difference]: Finished difference Result 1542 states and 1796 transitions. [2024-11-17 02:48:25,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 02:48:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 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 89 [2024-11-17 02:48:25,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:25,243 INFO L225 Difference]: With dead ends: 1542 [2024-11-17 02:48:25,244 INFO L226 Difference]: Without dead ends: 1542 [2024-11-17 02:48:25,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=445, Unknown=15, NotChecked=0, Total=552 [2024-11-17 02:48:25,244 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 1576 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 6988 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 7862 SdHoareTripleChecker+Invalid, 7026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 6988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:25,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 7862 Invalid, 7026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 6988 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:48:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-17 02:48:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1533. [2024-11-17 02:48:25,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1056 states have (on average 1.6638257575757576) internal successors, (1757), 1522 states have internal predecessors, (1757), 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) [2024-11-17 02:48:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1781 transitions. [2024-11-17 02:48:25,270 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1781 transitions. Word has length 89 [2024-11-17 02:48:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:25,271 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 1781 transitions. [2024-11-17 02:48:25,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 10.23076923076923) internal successors, (133), 15 states have internal predecessors, (133), 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) [2024-11-17 02:48:25,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1781 transitions. [2024-11-17 02:48:25,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 02:48:25,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:25,272 INFO L215 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] [2024-11-17 02:48:25,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 02:48:25,476 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 [2024-11-17 02:48:25,477 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)] === [2024-11-17 02:48:25,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:25,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1274952067, now seen corresponding path program 1 times [2024-11-17 02:48:25,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:25,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558032026] [2024-11-17 02:48:25,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:25,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:25,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:25,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:25,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558032026] [2024-11-17 02:48:25,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558032026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:25,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:25,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-17 02:48:25,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362260071] [2024-11-17 02:48:25,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:25,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 02:48:25,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:25,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 02:48:25,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-17 02:48:25,861 INFO L87 Difference]: Start difference. First operand 1533 states and 1781 transitions. Second operand has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 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) [2024-11-17 02:48:28,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:28,387 INFO L93 Difference]: Finished difference Result 1546 states and 1800 transitions. [2024-11-17 02:48:28,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 02:48:28,388 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 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 91 [2024-11-17 02:48:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:28,390 INFO L225 Difference]: With dead ends: 1546 [2024-11-17 02:48:28,390 INFO L226 Difference]: Without dead ends: 1546 [2024-11-17 02:48:28,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-17 02:48:28,390 INFO L432 NwaCegarLoop]: 1016 mSDtfsCounter, 1574 mSDsluCounter, 10898 mSDsCounter, 0 mSdLazyCounter, 7864 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 11914 SdHoareTripleChecker+Invalid, 7889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:28,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 11914 Invalid, 7889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7864 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:48:28,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-17 02:48:28,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1542. [2024-11-17 02:48:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1064 states have (on average 1.6607142857142858) internal successors, (1767), 1530 states have internal predecessors, (1767), 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) [2024-11-17 02:48:28,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1792 transitions. [2024-11-17 02:48:28,404 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1792 transitions. Word has length 91 [2024-11-17 02:48:28,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:28,404 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1792 transitions. [2024-11-17 02:48:28,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 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) [2024-11-17 02:48:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1792 transitions. [2024-11-17 02:48:28,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 02:48:28,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:28,405 INFO L215 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] [2024-11-17 02:48:28,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 02:48:28,405 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)] === [2024-11-17 02:48:28,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1274952068, now seen corresponding path program 1 times [2024-11-17 02:48:28,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:28,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538258024] [2024-11-17 02:48:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:28,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:28,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:28,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:28,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:28,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538258024] [2024-11-17 02:48:28,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538258024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:28,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:28,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-17 02:48:28,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383494691] [2024-11-17 02:48:28,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:28,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 02:48:28,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:28,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 02:48:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-17 02:48:28,885 INFO L87 Difference]: Start difference. First operand 1542 states and 1792 transitions. Second operand has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 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) [2024-11-17 02:48:31,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:31,437 INFO L93 Difference]: Finished difference Result 1545 states and 1799 transitions. [2024-11-17 02:48:31,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 02:48:31,438 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 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 91 [2024-11-17 02:48:31,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:31,440 INFO L225 Difference]: With dead ends: 1545 [2024-11-17 02:48:31,440 INFO L226 Difference]: Without dead ends: 1545 [2024-11-17 02:48:31,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-17 02:48:31,441 INFO L432 NwaCegarLoop]: 1023 mSDtfsCounter, 1591 mSDsluCounter, 6848 mSDsCounter, 0 mSdLazyCounter, 6956 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 7871 SdHoareTripleChecker+Invalid, 6980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:31,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 7871 Invalid, 6980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6956 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:48:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-17 02:48:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1542. [2024-11-17 02:48:31,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1064 states have (on average 1.6597744360902256) internal successors, (1766), 1530 states have internal predecessors, (1766), 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) [2024-11-17 02:48:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1791 transitions. [2024-11-17 02:48:31,453 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1791 transitions. Word has length 91 [2024-11-17 02:48:31,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:31,453 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1791 transitions. [2024-11-17 02:48:31,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 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) [2024-11-17 02:48:31,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1791 transitions. [2024-11-17 02:48:31,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-17 02:48:31,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:31,454 INFO L215 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] [2024-11-17 02:48:31,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 02:48:31,454 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)] === [2024-11-17 02:48:31,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:31,455 INFO L85 PathProgramCache]: Analyzing trace with hash 32611200, now seen corresponding path program 1 times [2024-11-17 02:48:31,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:31,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929323704] [2024-11-17 02:48:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:31,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:31,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:31,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:31,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929323704] [2024-11-17 02:48:31,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929323704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857531684] [2024-11-17 02:48:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:31,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:48:31,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:31,813 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) [2024-11-17 02:48:31,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 02:48:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:32,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-17 02:48:32,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:32,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:48:32,082 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:48:32,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:48:32,087 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 [2024-11-17 02:48:32,137 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:32,137 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 [2024-11-17 02:48:32,172 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:32,172 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 [2024-11-17 02:48:32,182 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 [2024-11-17 02:48:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:32,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:32,192 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_946 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_946) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-17 02:48:32,199 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_946 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_946) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-17 02:48:32,228 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2024-11-17 02:48:32,228 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 [2024-11-17 02:48:32,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857531684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:32,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:32,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 16 [2024-11-17 02:48:32,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169126379] [2024-11-17 02:48:32,264 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:32,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-17 02:48:32,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:32,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-17 02:48:32,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=257, Unknown=6, NotChecked=66, Total=380 [2024-11-17 02:48:32,265 INFO L87 Difference]: Start difference. First operand 1542 states and 1791 transitions. Second operand has 17 states, 15 states have (on average 8.866666666666667) internal successors, (133), 15 states have internal predecessors, (133), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 02:48:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:34,137 INFO L93 Difference]: Finished difference Result 1544 states and 1798 transitions. [2024-11-17 02:48:34,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 02:48:34,138 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 8.866666666666667) internal successors, (133), 15 states have internal predecessors, (133), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2024-11-17 02:48:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:34,140 INFO L225 Difference]: With dead ends: 1544 [2024-11-17 02:48:34,140 INFO L226 Difference]: Without dead ends: 1544 [2024-11-17 02:48:34,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=543, Unknown=6, NotChecked=98, Total=756 [2024-11-17 02:48:34,140 INFO L432 NwaCegarLoop]: 1016 mSDtfsCounter, 1565 mSDsluCounter, 7948 mSDsCounter, 0 mSdLazyCounter, 5869 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 8964 SdHoareTripleChecker+Invalid, 5894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 5869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:34,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 8964 Invalid, 5894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5869 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-17 02:48:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-17 02:48:34,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1541. [2024-11-17 02:48:34,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1064 states have (on average 1.6588345864661653) internal successors, (1765), 1529 states have internal predecessors, (1765), 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) [2024-11-17 02:48:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1790 transitions. [2024-11-17 02:48:34,154 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1790 transitions. Word has length 92 [2024-11-17 02:48:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:34,155 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 1790 transitions. [2024-11-17 02:48:34,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 8.866666666666667) internal successors, (133), 15 states have internal predecessors, (133), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 02:48:34,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1790 transitions. [2024-11-17 02:48:34,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-17 02:48:34,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:34,155 INFO L215 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] [2024-11-17 02:48:34,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 02:48:34,359 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 [2024-11-17 02:48:34,360 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)] === [2024-11-17 02:48:34,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:34,360 INFO L85 PathProgramCache]: Analyzing trace with hash 32611201, now seen corresponding path program 1 times [2024-11-17 02:48:34,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:34,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624629778] [2024-11-17 02:48:34,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:34,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:34,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:34,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:34,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624629778] [2024-11-17 02:48:34,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624629778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:34,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292846237] [2024-11-17 02:48:34,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:34,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:48:34,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:34,890 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) [2024-11-17 02:48:34,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 02:48:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:35,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-17 02:48:35,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:35,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:48:35,161 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:48:35,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:48:35,166 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 [2024-11-17 02:48:35,201 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 [2024-11-17 02:48:35,208 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 [2024-11-17 02:48:35,267 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 [2024-11-17 02:48:35,270 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 [2024-11-17 02:48:35,341 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:35,342 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 [2024-11-17 02:48:35,345 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 [2024-11-17 02:48:35,400 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:35,401 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 [2024-11-17 02:48:35,403 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 [2024-11-17 02:48:35,416 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 [2024-11-17 02:48:35,419 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 [2024-11-17 02:48:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:35,434 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:35,481 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1097 (Array Int Int)) (v_ArrVal_1096 (Array Int Int))) (<= (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1097) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1096) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1097 (Array Int Int))) (<= 0 (+ 4 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1097) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-17 02:48:35,557 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1103 (Array Int Int)) (v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1097 (Array Int Int)) (v_ArrVal_1096 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1102))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1103) .cse0 v_ArrVal_1097) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1096) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1103 (Array Int Int)) (v_ArrVal_1102 (Array Int Int)) (v_ArrVal_1097 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1103) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1102) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1097) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 4))))) is different from false [2024-11-17 02:48:35,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292846237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:35,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:35,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2024-11-17 02:48:35,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468747376] [2024-11-17 02:48:35,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:35,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 02:48:35,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:35,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 02:48:35,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=473, Unknown=4, NotChecked=90, Total=650 [2024-11-17 02:48:35,560 INFO L87 Difference]: Start difference. First operand 1541 states and 1790 transitions. Second operand has 21 states, 18 states have (on average 8.055555555555555) internal successors, (145), 20 states have internal predecessors, (145), 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) [2024-11-17 02:48:39,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:39,314 INFO L93 Difference]: Finished difference Result 1543 states and 1797 transitions. [2024-11-17 02:48:39,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 02:48:39,315 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.055555555555555) internal successors, (145), 20 states have internal predecessors, (145), 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 92 [2024-11-17 02:48:39,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:39,317 INFO L225 Difference]: With dead ends: 1543 [2024-11-17 02:48:39,317 INFO L226 Difference]: Without dead ends: 1543 [2024-11-17 02:48:39,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=737, Unknown=4, NotChecked=114, Total=992 [2024-11-17 02:48:39,317 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 1571 mSDsluCounter, 9722 mSDsCounter, 0 mSdLazyCounter, 10721 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 10761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 10721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:39,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 10743 Invalid, 10761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 10721 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-17 02:48:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-17 02:48:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1531. [2024-11-17 02:48:39,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1056 states have (on average 1.6619318181818181) internal successors, (1755), 1520 states have internal predecessors, (1755), 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) [2024-11-17 02:48:39,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1779 transitions. [2024-11-17 02:48:39,329 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1779 transitions. Word has length 92 [2024-11-17 02:48:39,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:39,329 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1779 transitions. [2024-11-17 02:48:39,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.055555555555555) internal successors, (145), 20 states have internal predecessors, (145), 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) [2024-11-17 02:48:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1779 transitions. [2024-11-17 02:48:39,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 02:48:39,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:39,330 INFO L215 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] [2024-11-17 02:48:39,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 02:48:39,531 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 [2024-11-17 02:48:39,531 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)] === [2024-11-17 02:48:39,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1702963148, now seen corresponding path program 1 times [2024-11-17 02:48:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755254218] [2024-11-17 02:48:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:39,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:39,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:39,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755254218] [2024-11-17 02:48:39,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755254218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:39,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:39,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-17 02:48:39,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438331565] [2024-11-17 02:48:39,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:39,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 02:48:39,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:39,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 02:48:39,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-17 02:48:39,919 INFO L87 Difference]: Start difference. First operand 1531 states and 1779 transitions. Second operand has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 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) [2024-11-17 02:48:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:41,957 INFO L93 Difference]: Finished difference Result 1547 states and 1801 transitions. [2024-11-17 02:48:41,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 02:48:41,958 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 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 94 [2024-11-17 02:48:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:41,960 INFO L225 Difference]: With dead ends: 1547 [2024-11-17 02:48:41,960 INFO L226 Difference]: Without dead ends: 1547 [2024-11-17 02:48:41,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2024-11-17 02:48:41,961 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 1579 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 5906 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 8932 SdHoareTripleChecker+Invalid, 5932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 5906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:41,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 8932 Invalid, 5932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 5906 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-17 02:48:41,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-17 02:48:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1543. [2024-11-17 02:48:41,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1067 states have (on average 1.6569821930646673) internal successors, (1768), 1531 states have internal predecessors, (1768), 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) [2024-11-17 02:48:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 1793 transitions. [2024-11-17 02:48:41,972 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 1793 transitions. Word has length 94 [2024-11-17 02:48:41,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:41,973 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 1793 transitions. [2024-11-17 02:48:41,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.076923076923077) internal successors, (92), 14 states have internal predecessors, (92), 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) [2024-11-17 02:48:41,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 1793 transitions. [2024-11-17 02:48:41,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 02:48:41,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:41,973 INFO L215 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] [2024-11-17 02:48:41,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-17 02:48:41,974 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)] === [2024-11-17 02:48:41,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:41,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1702963149, now seen corresponding path program 1 times [2024-11-17 02:48:41,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:41,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736226203] [2024-11-17 02:48:41,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:41,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:42,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:42,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:42,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:42,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736226203] [2024-11-17 02:48:42,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736226203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:42,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:42,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-17 02:48:42,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149962079] [2024-11-17 02:48:42,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:42,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 02:48:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:42,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 02:48:42,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-17 02:48:42,508 INFO L87 Difference]: Start difference. First operand 1543 states and 1793 transitions. Second operand has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2024-11-17 02:48:44,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:44,514 INFO L93 Difference]: Finished difference Result 1546 states and 1800 transitions. [2024-11-17 02:48:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 02:48:44,514 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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 94 [2024-11-17 02:48:44,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:44,516 INFO L225 Difference]: With dead ends: 1546 [2024-11-17 02:48:44,516 INFO L226 Difference]: Without dead ends: 1546 [2024-11-17 02:48:44,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-17 02:48:44,517 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 1599 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 5443 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 6103 SdHoareTripleChecker+Invalid, 5479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 5443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:44,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 6103 Invalid, 5479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 5443 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-17 02:48:44,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-17 02:48:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1543. [2024-11-17 02:48:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1067 states have (on average 1.656044985941893) internal successors, (1767), 1531 states have internal predecessors, (1767), 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) [2024-11-17 02:48:44,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 1792 transitions. [2024-11-17 02:48:44,528 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 1792 transitions. Word has length 94 [2024-11-17 02:48:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:44,528 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 1792 transitions. [2024-11-17 02:48:44,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.666666666666667) internal successors, (92), 12 states have internal predecessors, (92), 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) [2024-11-17 02:48:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 1792 transitions. [2024-11-17 02:48:44,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-17 02:48:44,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:44,529 INFO L215 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] [2024-11-17 02:48:44,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-17 02:48:44,529 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)] === [2024-11-17 02:48:44,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 859383983, now seen corresponding path program 1 times [2024-11-17 02:48:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:44,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649139632] [2024-11-17 02:48:44,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:44,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:44,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:44,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:44,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649139632] [2024-11-17 02:48:44,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649139632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:44,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321161604] [2024-11-17 02:48:44,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:44,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:48:44,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:44,917 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) [2024-11-17 02:48:44,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 02:48:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:45,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-17 02:48:45,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:45,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:48:45,187 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:48:45,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:48:45,193 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 [2024-11-17 02:48:45,251 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:45,252 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 [2024-11-17 02:48:45,291 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:45,291 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 [2024-11-17 02:48:45,320 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:45,321 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 [2024-11-17 02:48:45,328 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 [2024-11-17 02:48:45,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:45,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:45,336 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1391 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1391) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-17 02:48:45,339 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1391 (Array Int Int))) (= (select |c_#valid| (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_1391) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) 1)) is different from false [2024-11-17 02:48:45,431 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2024-11-17 02:48:45,431 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 [2024-11-17 02:48:45,437 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1390 (Array Int Int)) (v_ArrVal_1394 (Array Int Int)) (v_ArrVal_1391 (Array Int Int))) (= |c_ULTIMATE.start_main_#t~mem50#1.base| (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1394))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1390)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1391)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-17 02:48:45,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321161604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:45,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:45,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 19 [2024-11-17 02:48:45,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233943673] [2024-11-17 02:48:45,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:45,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-17 02:48:45,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-17 02:48:45,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=381, Unknown=20, NotChecked=126, Total=600 [2024-11-17 02:48:45,440 INFO L87 Difference]: Start difference. First operand 1543 states and 1792 transitions. Second operand has 20 states, 18 states have (on average 7.944444444444445) internal successors, (143), 19 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:48:47,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:47,977 INFO L93 Difference]: Finished difference Result 1545 states and 1799 transitions. [2024-11-17 02:48:47,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 02:48:47,977 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 7.944444444444445) internal successors, (143), 19 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 95 [2024-11-17 02:48:47,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:47,980 INFO L225 Difference]: With dead ends: 1545 [2024-11-17 02:48:47,980 INFO L226 Difference]: Without dead ends: 1545 [2024-11-17 02:48:47,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=771, Unknown=25, NotChecked=180, Total=1122 [2024-11-17 02:48:47,981 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 1559 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 7847 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 11889 SdHoareTripleChecker+Invalid, 7873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 7847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:47,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 11889 Invalid, 7873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 7847 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:48:47,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-17 02:48:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1542. [2024-11-17 02:48:47,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1542 states, 1067 states have (on average 1.655107778819119) internal successors, (1766), 1530 states have internal predecessors, (1766), 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) [2024-11-17 02:48:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1791 transitions. [2024-11-17 02:48:47,992 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1791 transitions. Word has length 95 [2024-11-17 02:48:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:47,992 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1791 transitions. [2024-11-17 02:48:47,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 7.944444444444445) internal successors, (143), 19 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:48:47,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1791 transitions. [2024-11-17 02:48:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-17 02:48:47,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:47,994 INFO L215 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] [2024-11-17 02:48:48,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 02:48:48,195 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 [2024-11-17 02:48:48,195 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)] === [2024-11-17 02:48:48,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:48,196 INFO L85 PathProgramCache]: Analyzing trace with hash 859383984, now seen corresponding path program 1 times [2024-11-17 02:48:48,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:48,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975361138] [2024-11-17 02:48:48,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:48,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:48,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:48,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:48,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:48,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975361138] [2024-11-17 02:48:48,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975361138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:48,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624092339] [2024-11-17 02:48:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:48,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:48:48,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:48,788 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) [2024-11-17 02:48:48,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 02:48:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:48,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-17 02:48:48,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:49,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:48:49,076 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:48:49,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:48:49,082 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 [2024-11-17 02:48:49,090 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 [2024-11-17 02:48:49,092 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 [2024-11-17 02:48:49,122 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 [2024-11-17 02:48:49,129 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 [2024-11-17 02:48:49,192 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:49,192 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 [2024-11-17 02:48:49,196 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 [2024-11-17 02:48:49,238 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:49,238 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 [2024-11-17 02:48:49,243 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 [2024-11-17 02:48:49,283 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:49,284 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 [2024-11-17 02:48:49,287 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 [2024-11-17 02:48:49,298 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 [2024-11-17 02:48:49,301 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 [2024-11-17 02:48:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:49,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:49,353 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1556 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 8))) (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1555 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1555) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-17 02:48:49,359 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1556 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8))) (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1555 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1555) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))) is different from false [2024-11-17 02:48:49,375 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1555 (Array Int Int)) (v_ArrVal_1554 (Array Int Int)) (v_ArrVal_1553 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1553))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1554) .cse0 v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_1555) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1554 (Array Int Int)) (v_ArrVal_1553 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1554) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1553) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 8))))) is different from false [2024-11-17 02:48:49,384 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$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1554 (Array Int Int)) (v_ArrVal_1553 (Array Int Int))) (<= 0 (+ 8 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1554) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1553) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1555 (Array Int Int)) (v_ArrVal_1554 (Array Int Int)) (v_ArrVal_1553 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_1553))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ 12 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_1554) .cse2 v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_1555) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))))))) is different from false [2024-11-17 02:48:49,422 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1554 (Array Int Int)) (v_ArrVal_1553 (Array Int Int)) (v_ArrVal_1562 (Array Int Int)) (v_ArrVal_1561 (Array Int Int))) (<= 0 (+ 8 (select (select (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1561))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1562) .cse0 v_ArrVal_1554) (select (select (store .cse1 .cse0 v_ArrVal_1553) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1556))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (forall ((v_ArrVal_1556 (Array Int Int)) (v_ArrVal_1555 (Array Int Int)) (v_ArrVal_1554 (Array Int Int)) (v_ArrVal_1553 (Array Int Int)) (v_ArrVal_1562 (Array Int Int)) (v_ArrVal_1561 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1561))) (let ((.cse3 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse5 (store .cse6 .cse3 v_ArrVal_1553))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (<= (+ 12 (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1562) .cse3 v_ArrVal_1554) .cse4 v_ArrVal_1556) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse5 .cse4 v_ArrVal_1555) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))))) is different from false [2024-11-17 02:48:49,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624092339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:49,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:49,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 18 [2024-11-17 02:48:49,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382980122] [2024-11-17 02:48:49,424 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:49,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 02:48:49,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:49,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 02:48:49,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=362, Unknown=5, NotChecked=210, Total=650 [2024-11-17 02:48:49,425 INFO L87 Difference]: Start difference. First operand 1542 states and 1791 transitions. Second operand has 19 states, 17 states have (on average 8.352941176470589) internal successors, (142), 18 states have internal predecessors, (142), 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) [2024-11-17 02:48:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:53,486 INFO L93 Difference]: Finished difference Result 1544 states and 1798 transitions. [2024-11-17 02:48:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 02:48:53,487 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.352941176470589) internal successors, (142), 18 states have internal predecessors, (142), 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 95 [2024-11-17 02:48:53,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:53,490 INFO L225 Difference]: With dead ends: 1544 [2024-11-17 02:48:53,490 INFO L226 Difference]: Without dead ends: 1544 [2024-11-17 02:48:53,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=749, Unknown=5, NotChecked=300, Total=1190 [2024-11-17 02:48:53,490 INFO L432 NwaCegarLoop]: 1013 mSDtfsCounter, 1566 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 9874 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 9894 SdHoareTripleChecker+Invalid, 9902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 9874 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:53,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 9894 Invalid, 9902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 9874 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-17 02:48:53,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-17 02:48:53,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1529. [2024-11-17 02:48:53,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1056 states have (on average 1.660037878787879) internal successors, (1753), 1518 states have internal predecessors, (1753), 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) [2024-11-17 02:48:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1777 transitions. [2024-11-17 02:48:53,501 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1777 transitions. Word has length 95 [2024-11-17 02:48:53,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:53,501 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 1777 transitions. [2024-11-17 02:48:53,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.352941176470589) internal successors, (142), 18 states have internal predecessors, (142), 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) [2024-11-17 02:48:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1777 transitions. [2024-11-17 02:48:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 02:48:53,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:53,502 INFO L215 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] [2024-11-17 02:48:53,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 02:48:53,706 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 [2024-11-17 02:48:53,707 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)] === [2024-11-17 02:48:53,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:53,707 INFO L85 PathProgramCache]: Analyzing trace with hash 823168444, now seen corresponding path program 1 times [2024-11-17 02:48:53,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:53,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289284256] [2024-11-17 02:48:53,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:53,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:54,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:54,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:54,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:54,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289284256] [2024-11-17 02:48:54,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289284256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:54,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:54,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-17 02:48:54,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863734823] [2024-11-17 02:48:54,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:54,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-17 02:48:54,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:54,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-17 02:48:54,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-17 02:48:54,121 INFO L87 Difference]: Start difference. First operand 1529 states and 1777 transitions. Second operand has 16 states, 14 states have (on average 6.785714285714286) internal successors, (95), 15 states have internal predecessors, (95), 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) [2024-11-17 02:48:56,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:56,280 INFO L93 Difference]: Finished difference Result 1548 states and 1802 transitions. [2024-11-17 02:48:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 02:48:56,281 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.785714285714286) internal successors, (95), 15 states have internal predecessors, (95), 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 97 [2024-11-17 02:48:56,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:56,283 INFO L225 Difference]: With dead ends: 1548 [2024-11-17 02:48:56,283 INFO L226 Difference]: Without dead ends: 1548 [2024-11-17 02:48:56,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-17 02:48:56,283 INFO L432 NwaCegarLoop]: 1014 mSDtfsCounter, 1582 mSDsluCounter, 8909 mSDsCounter, 0 mSdLazyCounter, 6545 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 9923 SdHoareTripleChecker+Invalid, 6571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 6545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:56,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 9923 Invalid, 6571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6545 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-17 02:48:56,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-17 02:48:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1544. [2024-11-17 02:48:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1070 states have (on average 1.6532710280373832) internal successors, (1769), 1532 states have internal predecessors, (1769), 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) [2024-11-17 02:48:56,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1794 transitions. [2024-11-17 02:48:56,293 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1794 transitions. Word has length 97 [2024-11-17 02:48:56,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:56,294 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 1794 transitions. [2024-11-17 02:48:56,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.785714285714286) internal successors, (95), 15 states have internal predecessors, (95), 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) [2024-11-17 02:48:56,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1794 transitions. [2024-11-17 02:48:56,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 02:48:56,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:56,294 INFO L215 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] [2024-11-17 02:48:56,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-17 02:48:56,294 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)] === [2024-11-17 02:48:56,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:56,295 INFO L85 PathProgramCache]: Analyzing trace with hash 823168445, now seen corresponding path program 1 times [2024-11-17 02:48:56,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:56,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42748914] [2024-11-17 02:48:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:56,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:56,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:48:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:56,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:56,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:48:56,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42748914] [2024-11-17 02:48:56,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42748914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:56,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:56,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-17 02:48:56,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933620219] [2024-11-17 02:48:56,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:56,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 02:48:56,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:48:56,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 02:48:56,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-17 02:48:56,889 INFO L87 Difference]: Start difference. First operand 1544 states and 1794 transitions. Second operand has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 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) [2024-11-17 02:48:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:59,630 INFO L93 Difference]: Finished difference Result 1547 states and 1801 transitions. [2024-11-17 02:48:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-17 02:48:59,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 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 97 [2024-11-17 02:48:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:59,633 INFO L225 Difference]: With dead ends: 1547 [2024-11-17 02:48:59,633 INFO L226 Difference]: Without dead ends: 1547 [2024-11-17 02:48:59,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-17 02:48:59,633 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 1580 mSDsluCounter, 7587 mSDsCounter, 0 mSdLazyCounter, 7838 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 8608 SdHoareTripleChecker+Invalid, 7874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 7838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:59,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 8608 Invalid, 7874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 7838 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-17 02:48:59,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-17 02:48:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1544. [2024-11-17 02:48:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1070 states have (on average 1.652336448598131) internal successors, (1768), 1532 states have internal predecessors, (1768), 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) [2024-11-17 02:48:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1793 transitions. [2024-11-17 02:48:59,644 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1793 transitions. Word has length 97 [2024-11-17 02:48:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:59,644 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 1793 transitions. [2024-11-17 02:48:59,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.3076923076923075) internal successors, (95), 13 states have internal predecessors, (95), 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) [2024-11-17 02:48:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1793 transitions. [2024-11-17 02:48:59,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-17 02:48:59,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:59,645 INFO L215 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] [2024-11-17 02:48:59,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-17 02:48:59,645 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)] === [2024-11-17 02:48:59,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:59,646 INFO L85 PathProgramCache]: Analyzing trace with hash -390087175, now seen corresponding path program 1 times [2024-11-17 02:48:59,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:48:59,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463181199] [2024-11-17 02:48:59,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:59,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:48:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:00,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:49:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:49:00,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:49:00,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463181199] [2024-11-17 02:49:00,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463181199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:49:00,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746403853] [2024-11-17 02:49:00,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:49:00,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:49:00,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:49:00,044 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) [2024-11-17 02:49:00,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 02:49:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:00,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-17 02:49:00,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:49:00,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:49:00,316 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:49:00,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:49:00,323 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 [2024-11-17 02:49:00,351 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:49:00,351 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 31 treesize of output 32 [2024-11-17 02:49:00,375 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:49:00,376 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 31 treesize of output 32 [2024-11-17 02:49:00,406 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:49:00,406 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 [2024-11-17 02:49:00,439 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:49:00,439 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 [2024-11-17 02:49:00,445 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 [2024-11-17 02:49:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:49:00,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:49:00,452 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1875 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_1875) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-17 02:49:00,479 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2024-11-17 02:49:00,479 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 [2024-11-17 02:49:00,485 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1875 (Array Int Int)) (v_ArrVal_1874 (Array Int Int))) (= (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_1874))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1875)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem53#1.base|)) is different from false [2024-11-17 02:49:04,520 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1875 (Array Int Int)) (v_ArrVal_1874 (Array Int Int)) (v_ArrVal_1873 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_1873)) (.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_1874))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1875)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3)))) is different from false [2024-11-17 02:49:04,526 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1875 (Array Int Int)) (v_ArrVal_1874 (Array Int Int)) (v_ArrVal_1873 (Array Int Int))) (let ((.cse2 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1873))) (let ((.cse0 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (let ((.cse1 (store .cse3 .cse0 v_ArrVal_1874))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_1875)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-17 02:49:04,547 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1878 (Array Int Int)) (v_ArrVal_1875 (Array Int Int)) (v_ArrVal_1874 (Array Int Int)) (v_ArrVal_1873 (Array Int Int))) (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_1878))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1873)))) (let ((.cse3 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (let ((.cse0 (store .cse2 .cse3 v_ArrVal_1874))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_1875)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse3))))) is different from false [2024-11-17 02:49:04,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746403853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:49:04,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:49:04,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 18 [2024-11-17 02:49:04,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729766494] [2024-11-17 02:49:04,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:49:04,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 02:49:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:49:04,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 02:49:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=350, Unknown=13, NotChecked=210, Total=650 [2024-11-17 02:49:04,550 INFO L87 Difference]: Start difference. First operand 1544 states and 1793 transitions. Second operand has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 18 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 02:49:07,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:49:07,300 INFO L93 Difference]: Finished difference Result 1546 states and 1800 transitions. [2024-11-17 02:49:07,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 02:49:07,300 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 18 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2024-11-17 02:49:07,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:49:07,303 INFO L225 Difference]: With dead ends: 1546 [2024-11-17 02:49:07,303 INFO L226 Difference]: Without dead ends: 1546 [2024-11-17 02:49:07,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 102 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=144, Invalid=675, Unknown=13, NotChecked=290, Total=1122 [2024-11-17 02:49:07,304 INFO L432 NwaCegarLoop]: 1020 mSDtfsCounter, 1565 mSDsluCounter, 8959 mSDsCounter, 0 mSdLazyCounter, 6470 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1580 SdHoareTripleChecker+Valid, 9979 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 6470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:49:07,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 9979 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 6470 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-17 02:49:07,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-17 02:49:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1543. [2024-11-17 02:49:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1070 states have (on average 1.6514018691588785) internal successors, (1767), 1531 states have internal predecessors, (1767), 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) [2024-11-17 02:49:07,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 1792 transitions. [2024-11-17 02:49:07,315 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 1792 transitions. Word has length 98 [2024-11-17 02:49:07,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:49:07,315 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 1792 transitions. [2024-11-17 02:49:07,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 8.411764705882353) internal successors, (143), 18 states have internal predecessors, (143), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 02:49:07,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 1792 transitions. [2024-11-17 02:49:07,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-17 02:49:07,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:49:07,316 INFO L215 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] [2024-11-17 02:49:07,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-17 02:49:07,517 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 [2024-11-17 02:49:07,517 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)] === [2024-11-17 02:49:07,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:49:07,517 INFO L85 PathProgramCache]: Analyzing trace with hash -390087174, now seen corresponding path program 1 times [2024-11-17 02:49:07,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:49:07,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949753714] [2024-11-17 02:49:07,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:49:07,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:49:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:08,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:49:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:49:08,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:49:08,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949753714] [2024-11-17 02:49:08,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949753714] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:49:08,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475983820] [2024-11-17 02:49:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:49:08,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 02:49:08,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:49:08,140 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) [2024-11-17 02:49:08,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 02:49:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:08,343 INFO L255 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-17 02:49:08,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:49:08,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 02:49:08,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-17 02:49:08,567 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 02:49:08,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 02:49:08,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 02:49:08,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 02:49:08,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-17 02:49:08,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-17 02:49:08,747 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-17 02:49:08,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-17 02:49:08,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-17 02:49:08,819 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-17 02:49:08,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-17 02:49:08,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-17 02:49:08,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2024-11-17 02:49:08,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-17 02:49:08,951 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-17 02:49:08,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-17 02:49:08,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-17 02:49:08,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-17 02:49:08,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-17 02:49:09,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:49:09,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:49:09,053 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2053 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) 24) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2053) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2054 (Array Int Int))) (<= 0 (+ 20 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-17 02:49:09,156 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8)) (.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base|)) (.cse4 (+ |c_ULTIMATE.start_main_#t~mem53#1.offset| 4))) (and (forall ((v_ArrVal_2052 (Array Int Int))) (or (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2053 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2052))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2051) .cse0 v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 24) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_2053) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (not (= (store .cse3 .cse4 (select v_ArrVal_2052 .cse4)) v_ArrVal_2052)))) (forall ((v_ArrVal_2052 (Array Int Int))) (or (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2051) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem53#1.base| v_ArrVal_2052) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) 20))) (not (= (store .cse3 .cse4 (select v_ArrVal_2052 .cse4)) v_ArrVal_2052)))))) is different from false [2024-11-17 02:49:09,174 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse2 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse0 (select |c_#memory_$Pointer$#1.base| .cse2)) (.cse1 (+ (select (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 4))) (and (forall ((v_ArrVal_2052 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2052 .cse1)) v_ArrVal_2052)) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2053 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (let ((.cse5 (store |c_#memory_$Pointer$#1.base| .cse2 v_ArrVal_2052))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse2 v_ArrVal_2051) .cse3 v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 24) (select |c_#length| (select (select (store .cse5 .cse3 v_ArrVal_2053) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))) (forall ((v_ArrVal_2052 (Array Int Int))) (or (not (= (store .cse0 .cse1 (select v_ArrVal_2052 .cse1)) v_ArrVal_2052)) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse2 v_ArrVal_2051) (select (select (store |c_#memory_$Pointer$#1.base| .cse2 v_ArrVal_2052) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 20))))))))) is different from false [2024-11-17 02:49:09,208 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2052 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2049))) (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2050)) (.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (or (not (= v_ArrVal_2052 (let ((.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 4))) (store (select .cse0 .cse1) .cse2 (select v_ArrVal_2052 .cse2))))) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2053 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (let ((.cse6 (store .cse0 .cse1 v_ArrVal_2052))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store .cse3 .cse1 v_ArrVal_2051) .cse5 v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 24) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_2053) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))) (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2052 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2049))) (let ((.cse10 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem52#1.base| v_ArrVal_2050)) (.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (or (not (= v_ArrVal_2052 (let ((.cse9 (+ (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 4))) (store (select .cse7 .cse8) .cse9 (select v_ArrVal_2052 .cse9))))) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (<= 0 (+ (select (select (store (store .cse10 .cse8 v_ArrVal_2051) (select (select (store .cse7 .cse8 v_ArrVal_2052) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 20))))))))) is different from false [2024-11-17 02:49:09,233 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse5 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2052 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| .cse5 v_ArrVal_2049))) (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| .cse5 v_ArrVal_2050)) (.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (or (not (= (let ((.cse2 (+ (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 4))) (store (select .cse0 .cse1) .cse2 (select v_ArrVal_2052 .cse2))) v_ArrVal_2052)) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (<= 0 (+ (select (select (store (store .cse3 .cse1 v_ArrVal_2051) (select (select (store .cse0 .cse1 v_ArrVal_2052) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 20))))))) (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2052 (Array Int Int))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| .cse5 v_ArrVal_2049))) (let ((.cse9 (store |c_#memory_$Pointer$#1.offset| .cse5 v_ArrVal_2050)) (.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (or (not (= (let ((.cse8 (+ (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 4))) (store (select .cse6 .cse7) .cse8 (select v_ArrVal_2052 .cse8))) v_ArrVal_2052)) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2053 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (let ((.cse11 (store .cse6 .cse7 v_ArrVal_2052))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (<= (+ (select (select (store (store .cse9 .cse7 v_ArrVal_2051) .cse10 v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 24) (select |c_#length| (select (select (store .cse11 .cse10 v_ArrVal_2053) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))))) is different from false [2024-11-17 02:49:09,304 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2060 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2059 (Array Int Int)) (v_ArrVal_2052 (Array Int Int))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2059))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse8 .cse7 v_ArrVal_2049))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (.cse0 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2060) .cse7 v_ArrVal_2050))) (or (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2053 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_2052))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (<= (+ (select (select (store (store .cse0 .cse1 v_ArrVal_2051) .cse2 v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 24) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_2053) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))) (not (= (let ((.cse6 (+ (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 4))) (store (select .cse5 .cse1) .cse6 (select v_ArrVal_2052 .cse6))) v_ArrVal_2052)))))))) (forall ((v_ArrVal_2050 (Array Int Int)) (v_ArrVal_2060 (Array Int Int)) (v_ArrVal_2049 (Array Int Int)) (v_ArrVal_2059 (Array Int Int)) (v_ArrVal_2052 (Array Int Int))) (let ((.cse14 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2059))) (let ((.cse13 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse9 (store .cse14 .cse13 v_ArrVal_2049))) (let ((.cse12 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem50#1.base| v_ArrVal_2060) .cse13 v_ArrVal_2050)) (.cse10 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (or (not (= (let ((.cse11 (+ (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 4))) (store (select .cse9 .cse10) .cse11 (select v_ArrVal_2052 .cse11))) v_ArrVal_2052)) (forall ((v_ArrVal_2054 (Array Int Int)) (v_ArrVal_2051 (Array Int Int))) (<= 0 (+ (select (select (store (store .cse12 .cse10 v_ArrVal_2051) (select (select (store .cse9 .cse10 v_ArrVal_2052) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_2054) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) 20))))))))))) is different from false [2024-11-17 02:49:09,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475983820] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:49:09,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:49:09,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 26 [2024-11-17 02:49:09,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414659502] [2024-11-17 02:49:09,308 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:49:09,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-17 02:49:09,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:49:09,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-17 02:49:09,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=765, Unknown=13, NotChecked=366, Total=1260 [2024-11-17 02:49:09,310 INFO L87 Difference]: Start difference. First operand 1543 states and 1792 transitions. Second operand has 27 states, 24 states have (on average 7.875) internal successors, (189), 26 states have internal predecessors, (189), 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) [2024-11-17 02:49:15,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:49:15,128 INFO L93 Difference]: Finished difference Result 2433 states and 2863 transitions. [2024-11-17 02:49:15,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 02:49:15,129 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 7.875) internal successors, (189), 26 states have internal predecessors, (189), 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 98 [2024-11-17 02:49:15,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:49:15,133 INFO L225 Difference]: With dead ends: 2433 [2024-11-17 02:49:15,133 INFO L226 Difference]: Without dead ends: 2433 [2024-11-17 02:49:15,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=226, Invalid=1425, Unknown=13, NotChecked=498, Total=2162 [2024-11-17 02:49:15,134 INFO L432 NwaCegarLoop]: 1006 mSDtfsCounter, 4053 mSDsluCounter, 12251 mSDsCounter, 0 mSdLazyCounter, 12610 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 13257 SdHoareTripleChecker+Invalid, 12720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 12610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:49:15,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 13257 Invalid, 12720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 12610 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-17 02:49:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2024-11-17 02:49:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 1527. [2024-11-17 02:49:15,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1056 states have (on average 1.6581439393939394) internal successors, (1751), 1516 states have internal predecessors, (1751), 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) [2024-11-17 02:49:15,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1775 transitions. [2024-11-17 02:49:15,146 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1775 transitions. Word has length 98 [2024-11-17 02:49:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:49:15,146 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1775 transitions. [2024-11-17 02:49:15,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 7.875) internal successors, (189), 26 states have internal predecessors, (189), 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) [2024-11-17 02:49:15,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1775 transitions. [2024-11-17 02:49:15,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-17 02:49:15,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:49:15,147 INFO L215 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, 1, 1] [2024-11-17 02:49:15,162 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-17 02:49:15,348 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 [2024-11-17 02:49:15,349 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)] === [2024-11-17 02:49:15,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:49:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash -108473098, now seen corresponding path program 1 times [2024-11-17 02:49:15,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:49:15,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177931637] [2024-11-17 02:49:15,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:49:15,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:49:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:15,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:49:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:49:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:49:15,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177931637] [2024-11-17 02:49:15,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177931637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:49:15,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:49:15,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-17 02:49:15,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155240326] [2024-11-17 02:49:15,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:49:15,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-17 02:49:15,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:49:15,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-17 02:49:15,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-17 02:49:15,886 INFO L87 Difference]: Start difference. First operand 1527 states and 1775 transitions. Second operand has 17 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 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) [2024-11-17 02:49:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:49:18,653 INFO L93 Difference]: Finished difference Result 1550 states and 1804 transitions. [2024-11-17 02:49:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 02:49:18,654 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 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 101 [2024-11-17 02:49:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:49:18,656 INFO L225 Difference]: With dead ends: 1550 [2024-11-17 02:49:18,656 INFO L226 Difference]: Without dead ends: 1550 [2024-11-17 02:49:18,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2024-11-17 02:49:18,657 INFO L432 NwaCegarLoop]: 1013 mSDtfsCounter, 1582 mSDsluCounter, 8899 mSDsCounter, 0 mSdLazyCounter, 6579 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 9912 SdHoareTripleChecker+Invalid, 6607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:49:18,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 9912 Invalid, 6607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 6579 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-17 02:49:18,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2024-11-17 02:49:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1546. [2024-11-17 02:49:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1074 states have (on average 1.648975791433892) internal successors, (1771), 1534 states have internal predecessors, (1771), 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) [2024-11-17 02:49:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 1796 transitions. [2024-11-17 02:49:18,667 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 1796 transitions. Word has length 101 [2024-11-17 02:49:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:49:18,667 INFO L471 AbstractCegarLoop]: Abstraction has 1546 states and 1796 transitions. [2024-11-17 02:49:18,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.6) internal successors, (99), 16 states have internal predecessors, (99), 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) [2024-11-17 02:49:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 1796 transitions. [2024-11-17 02:49:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-17 02:49:18,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:49:18,668 INFO L215 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, 1, 1] [2024-11-17 02:49:18,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-17 02:49:18,668 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)] === [2024-11-17 02:49:18,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:49:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash -108473097, now seen corresponding path program 1 times [2024-11-17 02:49:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 02:49:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213481285] [2024-11-17 02:49:18,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:49:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 02:49:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:19,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 02:49:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:49:19,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:49:19,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 02:49:19,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213481285] [2024-11-17 02:49:19,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213481285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:49:19,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:49:19,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-17 02:49:19,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89250126] [2024-11-17 02:49:19,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:49:19,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 02:49:19,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 02:49:19,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 02:49:19,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-17 02:49:19,504 INFO L87 Difference]: Start difference. First operand 1546 states and 1796 transitions. Second operand has 18 states, 16 states have (on average 6.1875) internal successors, (99), 17 states have internal predecessors, (99), 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)