./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_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_SFH_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 adfc1710e761824cc0d761ee45a1724b8fd34135f47dcc82b27f8b64b97ca013 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:01:50,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:01:50,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:01:50,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:01:50,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:01:50,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:01:50,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:01:50,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:01:50,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:01:50,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:01:50,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:01:50,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:01:50,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:01:50,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:01:50,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:01:50,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:01:50,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:01:50,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:01:50,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:01:50,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:01:50,583 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:01:50,583 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:01:50,584 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:01:50,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:01:50,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:01:50,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:01:50,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:01:50,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:01:50,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:01:50,585 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:01:50,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:01:50,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:01:50,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:01:50,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:01:50,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:01:50,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:01:50,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:01:50,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:01:50,591 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:01:50,591 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:01:50,591 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:01:50,592 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:01:50,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adfc1710e761824cc0d761ee45a1724b8fd34135f47dcc82b27f8b64b97ca013 [2024-11-17 03:01:50,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:01:50,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:01:50,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:01:50,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:01:50,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:01:50,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i [2024-11-17 03:01:52,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:01:52,727 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:01:52,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i [2024-11-17 03:01:52,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a9bed1d/214b39249a9244948018608470c2e2c2/FLAG333cf8e41 [2024-11-17 03:01:52,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91a9bed1d/214b39249a9244948018608470c2e2c2 [2024-11-17 03:01:52,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:01:52,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:01:52,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:01:52,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:01:52,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:01:52,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:01:52" (1/1) ... [2024-11-17 03:01:52,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae8f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:52, skipping insertion in model container [2024-11-17 03:01:52,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:01:52" (1/1) ... [2024-11-17 03:01:52,855 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:01:53,313 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 03:01:53,339 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 03:01:53,343 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 03:01:53,349 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 03:01:53,362 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 03:01:53,394 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 03:01:53,396 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 03:01:53,398 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 03:01:53,402 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 03:01:53,442 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 03:01:53,442 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 03:01:53,448 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 03:01:53,448 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 03:01:53,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:01:53,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:01:53,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:01:53,647 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:01:53,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53 WrapperNode [2024-11-17 03:01:53,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:01:53,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:01:53,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:01:53,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:01:53,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,762 INFO L138 Inliner]: procedures = 177, calls = 375, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2006 [2024-11-17 03:01:53,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:01:53,763 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:01:53,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:01:53,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:01:53,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,925 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 03:01:53,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,980 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:53,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:54,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:54,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:01:54,027 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:01:54,027 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:01:54,027 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:01:54,028 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (1/1) ... [2024-11-17 03:01:54,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:01:54,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:01:54,063 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 03:01:54,065 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 03:01:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-17 03:01:54,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-17 03:01:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 03:01:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 03:01:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 03:01:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 03:01:54,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 03:01:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 03:01:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 03:01:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 03:01:54,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 03:01:54,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 03:01:54,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 03:01:54,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 03:01:54,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 03:01:54,127 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 03:01:54,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 03:01:54,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:01:54,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 03:01:54,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 03:01:54,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 03:01:54,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 03:01:54,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 03:01:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 03:01:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 03:01:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 03:01:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:01:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 03:01:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 03:01:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:01:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:01:54,461 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:01:54,463 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:01:56,971 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 03:01:57,155 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-17 03:01:57,155 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:01:57,237 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:01:57,237 INFO L336 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-17 03:01:57,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:01:57 BoogieIcfgContainer [2024-11-17 03:01:57,238 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:01:57,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:01:57,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:01:57,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:01:57,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:01:52" (1/3) ... [2024-11-17 03:01:57,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd0e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:01:57, skipping insertion in model container [2024-11-17 03:01:57,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:01:53" (2/3) ... [2024-11-17 03:01:57,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcd0e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:01:57, skipping insertion in model container [2024-11-17 03:01:57,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:01:57" (3/3) ... [2024-11-17 03:01:57,246 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-1.i [2024-11-17 03:01:57,263 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:01:57,264 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 712 error locations. [2024-11-17 03:01:57,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:01:57,352 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;@19276003, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:01:57,353 INFO L334 AbstractCegarLoop]: Starting to check reachability of 712 error locations. [2024-11-17 03:01:57,362 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 03:01:57,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 03:01:57,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:57,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:01:57,369 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 03:01:57,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:57,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1279329309, now seen corresponding path program 1 times [2024-11-17 03:01:57,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:57,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336790688] [2024-11-17 03:01:57,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:57,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:57,574 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 03:01:57,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:57,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336790688] [2024-11-17 03:01:57,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336790688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:57,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:57,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:01:57,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148865655] [2024-11-17 03:01:57,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:57,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:01:57,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:01:57,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:01:57,619 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 03:01:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:57,807 INFO L93 Difference]: Finished difference Result 1746 states and 2006 transitions. [2024-11-17 03:01:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:01:57,810 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 03:01:57,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:57,831 INFO L225 Difference]: With dead ends: 1746 [2024-11-17 03:01:57,831 INFO L226 Difference]: Without dead ends: 1743 [2024-11-17 03:01:57,832 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 03:01:57,835 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 03:01:57,836 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 03:01:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2024-11-17 03:01:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2024-11-17 03:01:57,941 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 03:01:57,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2003 transitions. [2024-11-17 03:01:57,949 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2003 transitions. Word has length 6 [2024-11-17 03:01:57,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:57,950 INFO L471 AbstractCegarLoop]: Abstraction has 1743 states and 2003 transitions. [2024-11-17 03:01:57,950 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 03:01:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2003 transitions. [2024-11-17 03:01:57,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 03:01:57,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:57,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:01:57,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:01:57,952 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 03:01:57,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:57,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1279329340, now seen corresponding path program 1 times [2024-11-17 03:01:57,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:57,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688453229] [2024-11-17 03:01:57,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:57,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:58,056 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 03:01:58,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:58,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688453229] [2024-11-17 03:01:58,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688453229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:58,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:58,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:01:58,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376684258] [2024-11-17 03:01:58,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:58,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:01:58,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:58,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:01:58,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:58,065 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 03:01:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:01:59,280 INFO L93 Difference]: Finished difference Result 1980 states and 2328 transitions. [2024-11-17 03:01:59,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:01:59,281 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 03:01:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:01:59,293 INFO L225 Difference]: With dead ends: 1980 [2024-11-17 03:01:59,293 INFO L226 Difference]: Without dead ends: 1980 [2024-11-17 03:01:59,294 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 03:01:59,295 INFO L432 NwaCegarLoop]: 1541 mSDtfsCounter, 1763 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:01:59,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 1859 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:01:59,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2024-11-17 03:01:59,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1651. [2024-11-17 03:01:59,353 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 03:01:59,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1651 states to 1651 states and 1911 transitions. [2024-11-17 03:01:59,366 INFO L78 Accepts]: Start accepts. Automaton has 1651 states and 1911 transitions. Word has length 6 [2024-11-17 03:01:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:01:59,366 INFO L471 AbstractCegarLoop]: Abstraction has 1651 states and 1911 transitions. [2024-11-17 03:01:59,366 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 03:01:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1651 states and 1911 transitions. [2024-11-17 03:01:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 03:01:59,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:01:59,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 03:01:59,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:01:59,367 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 03:01:59,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:01:59,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1279329341, now seen corresponding path program 1 times [2024-11-17 03:01:59,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:01:59,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239678460] [2024-11-17 03:01:59,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:01:59,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:01:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:01:59,502 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 03:01:59,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:01:59,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239678460] [2024-11-17 03:01:59,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239678460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:01:59,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:01:59,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:01:59,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131925355] [2024-11-17 03:01:59,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:01:59,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:01:59,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:01:59,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:01:59,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:01:59,505 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 03:02:00,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:00,749 INFO L93 Difference]: Finished difference Result 2404 states and 2828 transitions. [2024-11-17 03:02:00,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:02:00,749 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 03:02:00,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:00,759 INFO L225 Difference]: With dead ends: 2404 [2024-11-17 03:02:00,759 INFO L226 Difference]: Without dead ends: 2404 [2024-11-17 03:02:00,762 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 03:02:00,763 INFO L432 NwaCegarLoop]: 1909 mSDtfsCounter, 1236 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 1077 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:00,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 2823 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1077 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:02:00,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2024-11-17 03:02:00,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1921. [2024-11-17 03:02:00,801 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 03:02:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2392 transitions. [2024-11-17 03:02:00,807 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2392 transitions. Word has length 6 [2024-11-17 03:02:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:00,807 INFO L471 AbstractCegarLoop]: Abstraction has 1921 states and 2392 transitions. [2024-11-17 03:02:00,807 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 03:02:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2392 transitions. [2024-11-17 03:02:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 03:02:00,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:00,809 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:02:00,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:02:00,809 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 03:02:00,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1020955448, now seen corresponding path program 1 times [2024-11-17 03:02:00,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:00,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762106850] [2024-11-17 03:02:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:00,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:00,856 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 03:02:00,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:00,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762106850] [2024-11-17 03:02:00,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762106850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:00,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:00,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:02:00,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632559231] [2024-11-17 03:02:00,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:00,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:02:00,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:00,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:02:00,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:02:00,860 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 03:02:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:01,130 INFO L93 Difference]: Finished difference Result 3822 states and 4764 transitions. [2024-11-17 03:02:01,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:02:01,131 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 03:02:01,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:01,145 INFO L225 Difference]: With dead ends: 3822 [2024-11-17 03:02:01,145 INFO L226 Difference]: Without dead ends: 3822 [2024-11-17 03:02:01,146 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 03:02:01,148 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:01,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 3894 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 03:02:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3822 states. [2024-11-17 03:02:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3822 to 1925. [2024-11-17 03:02:01,200 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 03:02:01,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2396 transitions. [2024-11-17 03:02:01,206 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2396 transitions. Word has length 8 [2024-11-17 03:02:01,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:01,206 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2396 transitions. [2024-11-17 03:02:01,207 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 03:02:01,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2396 transitions. [2024-11-17 03:02:01,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 03:02:01,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:01,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:02:01,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:02:01,208 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 03:02:01,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1400782018, now seen corresponding path program 1 times [2024-11-17 03:02:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928117299] [2024-11-17 03:02:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:01,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:01,305 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 03:02:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928117299] [2024-11-17 03:02:01,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928117299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:01,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:01,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:02:01,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418802280] [2024-11-17 03:02:01,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:01,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:02:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:01,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:02:01,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:02:01,308 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 03:02:02,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:02,545 INFO L93 Difference]: Finished difference Result 1951 states and 2449 transitions. [2024-11-17 03:02:02,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:02:02,545 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 03:02:02,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:02,552 INFO L225 Difference]: With dead ends: 1951 [2024-11-17 03:02:02,552 INFO L226 Difference]: Without dead ends: 1951 [2024-11-17 03:02:02,552 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 03:02:02,553 INFO L432 NwaCegarLoop]: 1123 mSDtfsCounter, 2031 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 1619 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:02,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 2112 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1619 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:02:02,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2024-11-17 03:02:02,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1902. [2024-11-17 03:02:02,584 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 03:02:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2373 transitions. [2024-11-17 03:02:02,590 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2373 transitions. Word has length 13 [2024-11-17 03:02:02,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:02,590 INFO L471 AbstractCegarLoop]: Abstraction has 1902 states and 2373 transitions. [2024-11-17 03:02:02,591 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 03:02:02,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2373 transitions. [2024-11-17 03:02:02,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 03:02:02,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:02,594 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:02:02,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:02:02,595 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 03:02:02,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:02,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1400782017, now seen corresponding path program 1 times [2024-11-17 03:02:02,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:02,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790974341] [2024-11-17 03:02:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:02,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:02,669 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 03:02:02,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:02,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790974341] [2024-11-17 03:02:02,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790974341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:02,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:02,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:02:02,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427855760] [2024-11-17 03:02:02,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:02,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:02:02,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:02,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:02:02,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:02:02,672 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 03:02:02,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:02,785 INFO L93 Difference]: Finished difference Result 1827 states and 2270 transitions. [2024-11-17 03:02:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:02:02,786 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 03:02:02,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:02,791 INFO L225 Difference]: With dead ends: 1827 [2024-11-17 03:02:02,791 INFO L226 Difference]: Without dead ends: 1827 [2024-11-17 03:02:02,791 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 03:02:02,792 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 03:02:02,792 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 03:02:02,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-17 03:02:02,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1827. [2024-11-17 03:02:02,815 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 03:02:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1827 states to 1827 states and 2270 transitions. [2024-11-17 03:02:02,819 INFO L78 Accepts]: Start accepts. Automaton has 1827 states and 2270 transitions. Word has length 13 [2024-11-17 03:02:02,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:02,820 INFO L471 AbstractCegarLoop]: Abstraction has 1827 states and 2270 transitions. [2024-11-17 03:02:02,820 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 03:02:02,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1827 states and 2270 transitions. [2024-11-17 03:02:02,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-17 03:02:02,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:02,821 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:02:02,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:02:02,821 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 03:02:02,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1826839390, now seen corresponding path program 1 times [2024-11-17 03:02:02,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:02,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067322129] [2024-11-17 03:02:02,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:02,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:02,902 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 03:02:02,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:02,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067322129] [2024-11-17 03:02:02,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067322129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:02,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:02,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:02:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859616236] [2024-11-17 03:02:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:02,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:02:02,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:02:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:02:02,904 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 03:02:03,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:03,083 INFO L93 Difference]: Finished difference Result 1812 states and 2248 transitions. [2024-11-17 03:02:03,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:02:03,084 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 03:02:03,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:03,089 INFO L225 Difference]: With dead ends: 1812 [2024-11-17 03:02:03,090 INFO L226 Difference]: Without dead ends: 1812 [2024-11-17 03:02:03,090 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 03:02:03,091 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 03:02:03,091 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 03:02:03,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-11-17 03:02:03,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1812. [2024-11-17 03:02:03,113 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 03:02:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2248 transitions. [2024-11-17 03:02:03,117 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2248 transitions. Word has length 15 [2024-11-17 03:02:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:03,118 INFO L471 AbstractCegarLoop]: Abstraction has 1812 states and 2248 transitions. [2024-11-17 03:02:03,118 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 03:02:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2248 transitions. [2024-11-17 03:02:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 03:02:03,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:03,119 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 03:02:03,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:02:03,119 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 03:02:03,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:03,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2106893528, now seen corresponding path program 1 times [2024-11-17 03:02:03,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:03,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286455262] [2024-11-17 03:02:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:03,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:03,259 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 03:02:03,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:03,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286455262] [2024-11-17 03:02:03,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286455262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:03,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:03,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:02:03,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589521460] [2024-11-17 03:02:03,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:03,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:02:03,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:03,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:02:03,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:02:03,261 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 03:02:04,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:04,773 INFO L93 Difference]: Finished difference Result 2342 states and 2758 transitions. [2024-11-17 03:02:04,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:02:04,774 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 03:02:04,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:04,781 INFO L225 Difference]: With dead ends: 2342 [2024-11-17 03:02:04,782 INFO L226 Difference]: Without dead ends: 2342 [2024-11-17 03:02:04,782 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 03:02:04,783 INFO L432 NwaCegarLoop]: 1405 mSDtfsCounter, 1241 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:04,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 3311 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 03:02:04,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-17 03:02:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1808. [2024-11-17 03:02:04,840 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 03:02:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2244 transitions. [2024-11-17 03:02:04,844 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2244 transitions. Word has length 29 [2024-11-17 03:02:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:04,845 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 2244 transitions. [2024-11-17 03:02:04,845 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 03:02:04,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2244 transitions. [2024-11-17 03:02:04,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-17 03:02:04,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:04,847 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 03:02:04,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:02:04,848 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 03:02:04,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:04,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1736803853, now seen corresponding path program 1 times [2024-11-17 03:02:04,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:04,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878059887] [2024-11-17 03:02:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:04,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:04,958 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 03:02:04,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:04,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878059887] [2024-11-17 03:02:04,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878059887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:04,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:04,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:02:04,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036109045] [2024-11-17 03:02:04,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:04,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:02:04,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:04,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:02:04,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:02:04,961 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 03:02:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:05,134 INFO L93 Difference]: Finished difference Result 1802 states and 2234 transitions. [2024-11-17 03:02:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:02:05,135 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 03:02:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:05,140 INFO L225 Difference]: With dead ends: 1802 [2024-11-17 03:02:05,140 INFO L226 Difference]: Without dead ends: 1802 [2024-11-17 03:02:05,141 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 03:02:05,141 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 03:02:05,142 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 03:02:05,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2024-11-17 03:02:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2024-11-17 03:02:05,170 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 03:02:05,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2234 transitions. [2024-11-17 03:02:05,174 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2234 transitions. Word has length 64 [2024-11-17 03:02:05,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:05,174 INFO L471 AbstractCegarLoop]: Abstraction has 1802 states and 2234 transitions. [2024-11-17 03:02:05,175 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 03:02:05,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2234 transitions. [2024-11-17 03:02:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-17 03:02:05,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:05,177 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 03:02:05,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:02:05,177 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 03:02:05,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:05,178 INFO L85 PathProgramCache]: Analyzing trace with hash -475789525, now seen corresponding path program 1 times [2024-11-17 03:02:05,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:05,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555065591] [2024-11-17 03:02:05,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:05,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:05,316 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 03:02:05,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:05,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555065591] [2024-11-17 03:02:05,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555065591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:05,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:05,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:02:05,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239124253] [2024-11-17 03:02:05,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:05,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:02:05,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:05,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:02:05,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:02:05,319 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 03:02:05,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:05,456 INFO L93 Difference]: Finished difference Result 1896 states and 2355 transitions. [2024-11-17 03:02:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:02:05,456 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 03:02:05,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:05,464 INFO L225 Difference]: With dead ends: 1896 [2024-11-17 03:02:05,465 INFO L226 Difference]: Without dead ends: 1896 [2024-11-17 03:02:05,465 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 03:02:05,466 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 03:02:05,466 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 03:02:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2024-11-17 03:02:05,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1896. [2024-11-17 03:02:05,491 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 03:02:05,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2355 transitions. [2024-11-17 03:02:05,494 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2355 transitions. Word has length 72 [2024-11-17 03:02:05,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:05,494 INFO L471 AbstractCegarLoop]: Abstraction has 1896 states and 2355 transitions. [2024-11-17 03:02:05,494 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 03:02:05,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2355 transitions. [2024-11-17 03:02:05,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-17 03:02:05,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:05,496 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 03:02:05,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 03:02:05,496 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 03:02:05,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:05,497 INFO L85 PathProgramCache]: Analyzing trace with hash -854221678, now seen corresponding path program 1 times [2024-11-17 03:02:05,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:05,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790513722] [2024-11-17 03:02:05,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:05,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:05,975 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 03:02:05,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:05,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790513722] [2024-11-17 03:02:05,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790513722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:05,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:05,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:02:05,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596336348] [2024-11-17 03:02:05,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:05,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:02:05,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:05,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:02:05,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:02:05,978 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 03:02:07,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:07,172 INFO L93 Difference]: Finished difference Result 1812 states and 2271 transitions. [2024-11-17 03:02:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:02:07,172 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 03:02:07,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:07,178 INFO L225 Difference]: With dead ends: 1812 [2024-11-17 03:02:07,179 INFO L226 Difference]: Without dead ends: 1812 [2024-11-17 03:02:07,179 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 03:02:07,179 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 1580 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:07,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 1566 Invalid, 1873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:02:07,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-11-17 03:02:07,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1532. [2024-11-17 03:02:07,198 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 03:02:07,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1780 transitions. [2024-11-17 03:02:07,201 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1780 transitions. Word has length 75 [2024-11-17 03:02:07,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:07,201 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1780 transitions. [2024-11-17 03:02:07,202 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 03:02:07,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1780 transitions. [2024-11-17 03:02:07,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 03:02:07,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:07,203 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 03:02:07,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 03:02:07,203 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 03:02:07,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:07,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1472879306, now seen corresponding path program 1 times [2024-11-17 03:02:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:07,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670160037] [2024-11-17 03:02:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:07,461 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 03:02:07,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:07,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670160037] [2024-11-17 03:02:07,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670160037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:07,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:07,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:02:07,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075303747] [2024-11-17 03:02:07,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:07,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:02:07,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:07,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:02:07,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:02:07,463 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 03:02:08,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:08,532 INFO L93 Difference]: Finished difference Result 1531 states and 1779 transitions. [2024-11-17 03:02:08,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:02:08,533 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 03:02:08,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:08,538 INFO L225 Difference]: With dead ends: 1531 [2024-11-17 03:02:08,538 INFO L226 Difference]: Without dead ends: 1531 [2024-11-17 03:02:08,538 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 03:02:08,539 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 2 mSDsluCounter, 3068 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:08,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4664 Invalid, 1944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 03:02:08,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1531 states. [2024-11-17 03:02:08,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1531 to 1531. [2024-11-17 03:02:08,558 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 03:02:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1779 transitions. [2024-11-17 03:02:08,560 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1779 transitions. Word has length 80 [2024-11-17 03:02:08,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:08,561 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1779 transitions. [2024-11-17 03:02:08,561 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 03:02:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1779 transitions. [2024-11-17 03:02:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 03:02:08,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:08,562 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 03:02:08,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 03:02:08,562 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 03:02:08,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1472879305, now seen corresponding path program 1 times [2024-11-17 03:02:08,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023991531] [2024-11-17 03:02:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:09,009 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 03:02:09,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:09,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023991531] [2024-11-17 03:02:09,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023991531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:09,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:09,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:02:09,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610213776] [2024-11-17 03:02:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:09,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:02:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:02:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:02:09,012 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 03:02:10,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:10,100 INFO L93 Difference]: Finished difference Result 1530 states and 1778 transitions. [2024-11-17 03:02:10,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:02:10,101 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 03:02:10,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:10,105 INFO L225 Difference]: With dead ends: 1530 [2024-11-17 03:02:10,105 INFO L226 Difference]: Without dead ends: 1530 [2024-11-17 03:02:10,105 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 03:02:10,106 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 1 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 1912 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:10,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4692 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1912 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-17 03:02:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2024-11-17 03:02:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1530. [2024-11-17 03:02:10,123 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 03:02:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 1778 transitions. [2024-11-17 03:02:10,125 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 1778 transitions. Word has length 80 [2024-11-17 03:02:10,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:10,126 INFO L471 AbstractCegarLoop]: Abstraction has 1530 states and 1778 transitions. [2024-11-17 03:02:10,126 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 03:02:10,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 1778 transitions. [2024-11-17 03:02:10,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-17 03:02:10,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:10,127 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 03:02:10,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 03:02:10,127 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 03:02:10,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:10,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1481159437, now seen corresponding path program 1 times [2024-11-17 03:02:10,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:10,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791011599] [2024-11-17 03:02:10,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:10,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:10,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:10,378 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 03:02:10,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:10,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791011599] [2024-11-17 03:02:10,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791011599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:10,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:10,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:02:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731370557] [2024-11-17 03:02:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:10,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:02:10,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:10,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:02:10,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:02:10,382 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 03:02:11,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:11,919 INFO L93 Difference]: Finished difference Result 1542 states and 1796 transitions. [2024-11-17 03:02:11,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:02:11,919 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 03:02:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:11,924 INFO L225 Difference]: With dead ends: 1542 [2024-11-17 03:02:11,924 INFO L226 Difference]: Without dead ends: 1542 [2024-11-17 03:02:11,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-17 03:02:11,925 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 17 mSDsluCounter, 5632 mSDsCounter, 0 mSdLazyCounter, 2684 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:11,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7210 Invalid, 2697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2684 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 03:02:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-17 03:02:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1536. [2024-11-17 03:02:11,948 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 03:02:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 1791 transitions. [2024-11-17 03:02:11,950 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 1791 transitions. Word has length 88 [2024-11-17 03:02:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:11,951 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 1791 transitions. [2024-11-17 03:02:11,951 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 03:02:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 1791 transitions. [2024-11-17 03:02:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-17 03:02:11,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:11,952 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 03:02:11,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 03:02:11,952 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 03:02:11,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1481159436, now seen corresponding path program 1 times [2024-11-17 03:02:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195253493] [2024-11-17 03:02:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:12,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:12,447 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 03:02:12,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:12,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195253493] [2024-11-17 03:02:12,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195253493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:12,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:12,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:02:12,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118768400] [2024-11-17 03:02:12,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:12,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:02:12,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:02:12,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:02:12,449 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 03:02:13,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:13,695 INFO L93 Difference]: Finished difference Result 1536 states and 1790 transitions. [2024-11-17 03:02:13,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:02:13,695 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 03:02:13,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:13,699 INFO L225 Difference]: With dead ends: 1536 [2024-11-17 03:02:13,699 INFO L226 Difference]: Without dead ends: 1536 [2024-11-17 03:02:13,699 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 03:02:13,700 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 18 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 2239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:13,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 5999 Invalid, 2262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2239 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-17 03:02:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2024-11-17 03:02:13,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2024-11-17 03:02:13,723 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 03:02:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 1790 transitions. [2024-11-17 03:02:13,730 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 1790 transitions. Word has length 88 [2024-11-17 03:02:13,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:13,730 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 1790 transitions. [2024-11-17 03:02:13,731 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 03:02:13,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 1790 transitions. [2024-11-17 03:02:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 03:02:13,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:13,732 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 03:02:13,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 03:02:13,733 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 03:02:13,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1674677226, now seen corresponding path program 1 times [2024-11-17 03:02:13,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:13,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064440001] [2024-11-17 03:02:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:13,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:14,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:14,207 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 03:02:14,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:14,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064440001] [2024-11-17 03:02:14,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064440001] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:14,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053781151] [2024-11-17 03:02:14,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:14,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:14,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:14,212 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 03:02:14,214 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 03:02:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:14,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-17 03:02:14,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:14,524 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 03:02:14,657 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:14,658 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 03:02:14,674 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 03:02:14,756 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:14,757 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 03:02:14,787 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 03:02:14,790 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 03:02:14,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:14,840 INFO L349 Elim1Store]: treesize reduction 5, result has 70.6 percent of original size [2024-11-17 03:02:14,840 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 03:02:14,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053781151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:14,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:14,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 14 [2024-11-17 03:02:14,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089105744] [2024-11-17 03:02:14,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:14,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 03:02:14,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:14,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 03:02:14,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=195, Unknown=7, NotChecked=0, Total=240 [2024-11-17 03:02:14,894 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 03:02:17,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:17,864 INFO L93 Difference]: Finished difference Result 1535 states and 1789 transitions. [2024-11-17 03:02:17,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:02:17,865 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 03:02:17,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:17,868 INFO L225 Difference]: With dead ends: 1535 [2024-11-17 03:02:17,869 INFO L226 Difference]: Without dead ends: 1535 [2024-11-17 03:02:17,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=451, Unknown=8, NotChecked=0, Total=552 [2024-11-17 03:02:17,870 INFO L432 NwaCegarLoop]: 1017 mSDtfsCounter, 1569 mSDsluCounter, 8955 mSDsCounter, 0 mSdLazyCounter, 6510 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:17,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1584 Valid, 9972 Invalid, 6536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6510 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 03:02:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-11-17 03:02:17,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1535. [2024-11-17 03:02:17,886 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 03:02:17,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1789 transitions. [2024-11-17 03:02:17,889 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1789 transitions. Word has length 89 [2024-11-17 03:02:17,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:17,889 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 1789 transitions. [2024-11-17 03:02:17,889 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 03:02:17,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1789 transitions. [2024-11-17 03:02:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 03:02:17,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:17,890 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 03:02:17,910 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 03:02:18,091 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 03:02:18,092 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 03:02:18,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:18,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1674677225, now seen corresponding path program 1 times [2024-11-17 03:02:18,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:18,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994057633] [2024-11-17 03:02:18,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:18,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:18,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:18,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:18,870 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 03:02:18,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:18,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994057633] [2024-11-17 03:02:18,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994057633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:18,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480091684] [2024-11-17 03:02:18,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:18,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:18,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:18,873 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 03:02:18,876 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 03:02:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:19,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-17 03:02:19,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:19,122 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 03:02:19,238 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 03:02:19,247 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:19,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-17 03:02:19,265 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 03:02:19,275 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 03:02:19,354 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 03:02:19,359 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 03:02:19,466 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:19,466 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 03:02:19,472 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 03:02:19,508 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 03:02:19,512 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 03:02:19,515 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 03:02:19,515 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:19,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480091684] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:19,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:19,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 15 [2024-11-17 03:02:19,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302618557] [2024-11-17 03:02:19,637 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:19,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-17 03:02:19,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:19,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-17 03:02:19,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=274, Unknown=12, NotChecked=0, Total=342 [2024-11-17 03:02:19,639 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 03:02:23,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:23,051 INFO L93 Difference]: Finished difference Result 1542 states and 1796 transitions. [2024-11-17 03:02:23,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 03:02:23,052 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 03:02:23,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:23,055 INFO L225 Difference]: With dead ends: 1542 [2024-11-17 03:02:23,055 INFO L226 Difference]: Without dead ends: 1542 [2024-11-17 03:02:23,055 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 03:02:23,056 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 1576 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 6988 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 3.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:23,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 7862 Invalid, 7026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 6988 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-17 03:02:23,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2024-11-17 03:02:23,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1533. [2024-11-17 03:02:23,074 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 03:02:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1781 transitions. [2024-11-17 03:02:23,076 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1781 transitions. Word has length 89 [2024-11-17 03:02:23,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:23,076 INFO L471 AbstractCegarLoop]: Abstraction has 1533 states and 1781 transitions. [2024-11-17 03:02:23,077 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 03:02:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1781 transitions. [2024-11-17 03:02:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 03:02:23,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:23,078 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 03:02:23,097 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 03:02:23,281 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 03:02:23,282 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 03:02:23,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:23,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1274952067, now seen corresponding path program 1 times [2024-11-17 03:02:23,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:23,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588955590] [2024-11-17 03:02:23,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:23,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:23,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:23,764 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 03:02:23,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588955590] [2024-11-17 03:02:23,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588955590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:23,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:23,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-17 03:02:23,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575268104] [2024-11-17 03:02:23,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:23,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 03:02:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 03:02:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-17 03:02:23,767 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 03:02:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:26,806 INFO L93 Difference]: Finished difference Result 1546 states and 1800 transitions. [2024-11-17 03:02:26,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 03:02:26,806 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 03:02:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:26,810 INFO L225 Difference]: With dead ends: 1546 [2024-11-17 03:02:26,810 INFO L226 Difference]: Without dead ends: 1546 [2024-11-17 03:02:26,810 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 03:02:26,811 INFO L432 NwaCegarLoop]: 1016 mSDtfsCounter, 1574 mSDsluCounter, 10898 mSDsCounter, 0 mSdLazyCounter, 7864 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.9s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:26,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 11914 Invalid, 7889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 7864 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-17 03:02:26,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-17 03:02:26,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1542. [2024-11-17 03:02:26,829 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 03:02:26,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1792 transitions. [2024-11-17 03:02:26,831 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1792 transitions. Word has length 91 [2024-11-17 03:02:26,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:26,832 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1792 transitions. [2024-11-17 03:02:26,832 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 03:02:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1792 transitions. [2024-11-17 03:02:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 03:02:26,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:26,833 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 03:02:26,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 03:02:26,833 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 03:02:26,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1274952068, now seen corresponding path program 1 times [2024-11-17 03:02:26,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:26,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108630434] [2024-11-17 03:02:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:26,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:27,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:27,475 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 03:02:27,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:27,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108630434] [2024-11-17 03:02:27,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108630434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:27,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:27,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-17 03:02:27,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146927814] [2024-11-17 03:02:27,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:27,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 03:02:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:27,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 03:02:27,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-17 03:02:27,478 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 03:02:30,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:30,631 INFO L93 Difference]: Finished difference Result 1545 states and 1799 transitions. [2024-11-17 03:02:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:02:30,631 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 03:02:30,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:30,634 INFO L225 Difference]: With dead ends: 1545 [2024-11-17 03:02:30,634 INFO L226 Difference]: Without dead ends: 1545 [2024-11-17 03:02:30,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-17 03:02:30,635 INFO L432 NwaCegarLoop]: 1023 mSDtfsCounter, 1591 mSDsluCounter, 6848 mSDsCounter, 0 mSdLazyCounter, 6956 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 3.0s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:30,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 7871 Invalid, 6980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 6956 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-17 03:02:30,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-17 03:02:30,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1542. [2024-11-17 03:02:30,661 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 03:02:30,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1791 transitions. [2024-11-17 03:02:30,665 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1791 transitions. Word has length 91 [2024-11-17 03:02:30,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:30,665 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1791 transitions. [2024-11-17 03:02:30,666 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 03:02:30,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1791 transitions. [2024-11-17 03:02:30,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-17 03:02:30,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:30,667 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 03:02:30,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 03:02:30,667 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 03:02:30,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:30,668 INFO L85 PathProgramCache]: Analyzing trace with hash 32611200, now seen corresponding path program 1 times [2024-11-17 03:02:30,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:30,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453038166] [2024-11-17 03:02:30,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:30,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:31,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:31,186 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 03:02:31,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:31,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453038166] [2024-11-17 03:02:31,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453038166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848126384] [2024-11-17 03:02:31,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:31,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:31,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:31,189 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 03:02:31,191 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 03:02:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:31,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-17 03:02:31,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:31,460 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 03:02:31,555 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:31,555 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 03:02:31,564 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 03:02:31,631 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:31,631 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 03:02:31,684 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:31,684 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 03:02:31,699 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 03:02:31,704 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 03:02:31,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:31,715 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 03:02:31,724 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 03:02:31,766 INFO L349 Elim1Store]: treesize reduction 5, result has 82.8 percent of original size [2024-11-17 03:02:31,767 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 03:02:31,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848126384] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:31,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:31,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 16 [2024-11-17 03:02:31,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101498173] [2024-11-17 03:02:31,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:31,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-17 03:02:31,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:31,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-17 03:02:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=257, Unknown=6, NotChecked=66, Total=380 [2024-11-17 03:02:31,825 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 03:02:34,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:34,159 INFO L93 Difference]: Finished difference Result 1544 states and 1798 transitions. [2024-11-17 03:02:34,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:02:34,159 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 03:02:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:34,162 INFO L225 Difference]: With dead ends: 1544 [2024-11-17 03:02:34,162 INFO L226 Difference]: Without dead ends: 1544 [2024-11-17 03:02:34,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=543, Unknown=6, NotChecked=98, Total=756 [2024-11-17 03:02:34,163 INFO L432 NwaCegarLoop]: 1016 mSDtfsCounter, 1565 mSDsluCounter, 7948 mSDsCounter, 0 mSdLazyCounter, 5869 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 2.2s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:34,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1580 Valid, 8964 Invalid, 5894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 5869 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-17 03:02:34,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-17 03:02:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1541. [2024-11-17 03:02:34,179 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 03:02:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1790 transitions. [2024-11-17 03:02:34,181 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1790 transitions. Word has length 92 [2024-11-17 03:02:34,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:34,181 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 1790 transitions. [2024-11-17 03:02:34,181 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 03:02:34,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1790 transitions. [2024-11-17 03:02:34,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-17 03:02:34,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:34,182 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 03:02:34,201 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 03:02:34,383 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 03:02:34,383 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 03:02:34,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:34,384 INFO L85 PathProgramCache]: Analyzing trace with hash 32611201, now seen corresponding path program 1 times [2024-11-17 03:02:34,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:34,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169534818] [2024-11-17 03:02:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:35,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:35,087 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 03:02:35,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:35,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169534818] [2024-11-17 03:02:35,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169534818] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:35,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399126078] [2024-11-17 03:02:35,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:35,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:35,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:35,090 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 03:02:35,091 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 03:02:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:35,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-17 03:02:35,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:35,354 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 03:02:35,442 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:35,443 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 03:02:35,450 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 03:02:35,474 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 03:02:35,479 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 03:02:35,552 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 03:02:35,556 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 03:02:35,650 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:35,650 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 03:02:35,655 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 03:02:35,752 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:35,752 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 03:02:35,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-17 03:02:35,774 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 03:02:35,778 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 03:02:35,798 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 03:02:35,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:35,855 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 03:02:35,958 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 03:02:35,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399126078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:35,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2024-11-17 03:02:35,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032223048] [2024-11-17 03:02:35,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:35,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 03:02:35,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:35,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 03:02:35,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=473, Unknown=4, NotChecked=90, Total=650 [2024-11-17 03:02:35,963 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 03:02:40,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:40,501 INFO L93 Difference]: Finished difference Result 1543 states and 1797 transitions. [2024-11-17 03:02:40,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 03:02:40,502 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 03:02:40,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:40,505 INFO L225 Difference]: With dead ends: 1543 [2024-11-17 03:02:40,505 INFO L226 Difference]: Without dead ends: 1543 [2024-11-17 03:02:40,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=137, Invalid=737, Unknown=4, NotChecked=114, Total=992 [2024-11-17 03:02:40,506 INFO L432 NwaCegarLoop]: 1021 mSDtfsCounter, 1571 mSDsluCounter, 9722 mSDsCounter, 0 mSdLazyCounter, 10721 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s 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, 4.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:40,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 10743 Invalid, 10761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 10721 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-17 03:02:40,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-17 03:02:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1531. [2024-11-17 03:02:40,520 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 03:02:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 1779 transitions. [2024-11-17 03:02:40,522 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 1779 transitions. Word has length 92 [2024-11-17 03:02:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:40,522 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 1779 transitions. [2024-11-17 03:02:40,523 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 03:02:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 1779 transitions. [2024-11-17 03:02:40,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 03:02:40,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:40,524 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 03:02:40,543 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 03:02:40,724 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 03:02:40,724 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 03:02:40,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:40,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1702963148, now seen corresponding path program 1 times [2024-11-17 03:02:40,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:40,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120160920] [2024-11-17 03:02:40,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:40,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:40,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:41,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:41,256 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 03:02:41,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:41,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120160920] [2024-11-17 03:02:41,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120160920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:41,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-17 03:02:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324505601] [2024-11-17 03:02:41,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:41,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 03:02:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:41,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 03:02:41,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-17 03:02:41,260 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 03:02:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:43,683 INFO L93 Difference]: Finished difference Result 1547 states and 1801 transitions. [2024-11-17 03:02:43,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 03:02:43,684 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 03:02:43,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:43,686 INFO L225 Difference]: With dead ends: 1547 [2024-11-17 03:02:43,686 INFO L226 Difference]: Without dead ends: 1547 [2024-11-17 03:02:43,686 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 03:02:43,687 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 1579 mSDsluCounter, 7917 mSDsCounter, 0 mSdLazyCounter, 5906 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:43,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 8932 Invalid, 5932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 5906 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-17 03:02:43,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-17 03:02:43,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1543. [2024-11-17 03:02:43,701 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 03:02:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 1793 transitions. [2024-11-17 03:02:43,706 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 1793 transitions. Word has length 94 [2024-11-17 03:02:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:43,707 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 1793 transitions. [2024-11-17 03:02:43,707 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 03:02:43,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 1793 transitions. [2024-11-17 03:02:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 03:02:43,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:43,708 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 03:02:43,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-17 03:02:43,709 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 03:02:43,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:43,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1702963149, now seen corresponding path program 1 times [2024-11-17 03:02:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114773461] [2024-11-17 03:02:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:43,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:44,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:44,471 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 03:02:44,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:44,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114773461] [2024-11-17 03:02:44,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114773461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:44,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:44,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-17 03:02:44,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612197636] [2024-11-17 03:02:44,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:44,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-17 03:02:44,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:44,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-17 03:02:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-17 03:02:44,475 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 03:02:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:46,933 INFO L93 Difference]: Finished difference Result 1546 states and 1800 transitions. [2024-11-17 03:02:46,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:02:46,934 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 03:02:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:46,936 INFO L225 Difference]: With dead ends: 1546 [2024-11-17 03:02:46,936 INFO L226 Difference]: Without dead ends: 1546 [2024-11-17 03:02:46,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2024-11-17 03:02:46,937 INFO L432 NwaCegarLoop]: 1022 mSDtfsCounter, 1599 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 5443 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.3s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:46,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 6103 Invalid, 5479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 5443 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-17 03:02:46,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2024-11-17 03:02:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1543. [2024-11-17 03:02:46,950 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 03:02:46,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 1792 transitions. [2024-11-17 03:02:46,952 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 1792 transitions. Word has length 94 [2024-11-17 03:02:46,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:46,953 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 1792 transitions. [2024-11-17 03:02:46,953 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 03:02:46,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 1792 transitions. [2024-11-17 03:02:46,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-17 03:02:46,954 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:46,954 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 03:02:46,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-17 03:02:46,954 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 03:02:46,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash 859383983, now seen corresponding path program 1 times [2024-11-17 03:02:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341607814] [2024-11-17 03:02:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:46,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:47,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:47,453 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 03:02:47,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:47,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341607814] [2024-11-17 03:02:47,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341607814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:47,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246056794] [2024-11-17 03:02:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:47,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:47,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:47,456 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 03:02:47,470 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 03:02:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:47,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-17 03:02:47,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:47,766 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 03:02:47,860 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:47,860 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 03:02:47,866 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 03:02:47,938 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:47,939 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 03:02:47,974 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:47,975 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 03:02:48,012 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:48,012 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 03:02:48,025 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 03:02:48,029 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 03:02:48,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:48,039 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 03:02:48,045 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 03:02:48,164 INFO L349 Elim1Store]: treesize reduction 5, result has 90.6 percent of original size [2024-11-17 03:02:48,165 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 03:02:48,175 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 03:02:48,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246056794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:48,177 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:48,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 19 [2024-11-17 03:02:48,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971662787] [2024-11-17 03:02:48,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:48,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-17 03:02:48,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:48,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-17 03:02:48,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=381, Unknown=20, NotChecked=126, Total=600 [2024-11-17 03:02:48,178 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 03:02:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:51,298 INFO L93 Difference]: Finished difference Result 1545 states and 1799 transitions. [2024-11-17 03:02:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 03:02:51,298 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 03:02:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:51,300 INFO L225 Difference]: With dead ends: 1545 [2024-11-17 03:02:51,300 INFO L226 Difference]: Without dead ends: 1545 [2024-11-17 03:02:51,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=146, Invalid=771, Unknown=25, NotChecked=180, Total=1122 [2024-11-17 03:02:51,301 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 1559 mSDsluCounter, 10874 mSDsCounter, 0 mSdLazyCounter, 7847 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.9s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:51,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 11889 Invalid, 7873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 7847 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-17 03:02:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2024-11-17 03:02:51,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1542. [2024-11-17 03:02:51,315 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 03:02:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1542 states to 1542 states and 1791 transitions. [2024-11-17 03:02:51,317 INFO L78 Accepts]: Start accepts. Automaton has 1542 states and 1791 transitions. Word has length 95 [2024-11-17 03:02:51,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:51,317 INFO L471 AbstractCegarLoop]: Abstraction has 1542 states and 1791 transitions. [2024-11-17 03:02:51,318 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 03:02:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1542 states and 1791 transitions. [2024-11-17 03:02:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-17 03:02:51,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:51,318 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 03:02:51,338 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 03:02:51,522 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 03:02:51,523 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 03:02:51,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:51,523 INFO L85 PathProgramCache]: Analyzing trace with hash 859383984, now seen corresponding path program 1 times [2024-11-17 03:02:51,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:51,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871670264] [2024-11-17 03:02:51,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:51,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:52,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:52,363 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 03:02:52,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:52,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871670264] [2024-11-17 03:02:52,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871670264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:52,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845953604] [2024-11-17 03:02:52,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:52,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:02:52,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:02:52,367 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 03:02:52,368 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 03:02:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:52,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-17 03:02:52,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:02:52,658 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 03:02:52,736 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-17 03:02:52,737 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 03:02:52,742 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 03:02:52,750 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 03:02:52,753 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 03:02:52,794 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 03:02:52,797 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 03:02:52,873 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:52,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-17 03:02:52,878 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 03:02:52,928 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:52,928 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 03:02:52,934 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 03:02:52,977 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 03:02:52,977 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 03:02:52,980 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 03:02:52,992 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 03:02:52,995 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 03:02:52,997 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 03:02:52,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:02:53,041 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 03:02:53,051 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 03:02:53,069 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 03:02:53,084 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 03:02:53,135 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 03:02:53,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845953604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:02:53,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 03:02:53,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 18 [2024-11-17 03:02:53,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395126739] [2024-11-17 03:02:53,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 03:02:53,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 03:02:53,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:53,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 03:02:53,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=362, Unknown=5, NotChecked=210, Total=650 [2024-11-17 03:02:53,140 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 03:02:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:02:58,141 INFO L93 Difference]: Finished difference Result 1544 states and 1798 transitions. [2024-11-17 03:02:58,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 03:02:58,143 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 03:02:58,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:02:58,145 INFO L225 Difference]: With dead ends: 1544 [2024-11-17 03:02:58,145 INFO L226 Difference]: Without dead ends: 1544 [2024-11-17 03:02:58,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 94 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=749, Unknown=5, NotChecked=300, Total=1190 [2024-11-17 03:02:58,147 INFO L432 NwaCegarLoop]: 1013 mSDtfsCounter, 1566 mSDsluCounter, 8881 mSDsCounter, 0 mSdLazyCounter, 9874 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.8s IncrementalHoareTripleChecker+Time [2024-11-17 03:02:58,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1581 Valid, 9894 Invalid, 9902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 9874 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-17 03:02:58,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2024-11-17 03:02:58,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1529. [2024-11-17 03:02:58,161 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 03:02:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1777 transitions. [2024-11-17 03:02:58,163 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1777 transitions. Word has length 95 [2024-11-17 03:02:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:02:58,164 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 1777 transitions. [2024-11-17 03:02:58,164 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 03:02:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1777 transitions. [2024-11-17 03:02:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 03:02:58,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:02:58,165 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 03:02:58,185 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 03:02:58,365 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 03:02:58,366 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 03:02:58,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:02:58,366 INFO L85 PathProgramCache]: Analyzing trace with hash 823168444, now seen corresponding path program 1 times [2024-11-17 03:02:58,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:02:58,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042889260] [2024-11-17 03:02:58,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:02:58,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:02:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:58,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:02:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:02:58,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:02:58,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:02:58,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042889260] [2024-11-17 03:02:58,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042889260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:02:58,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:02:58,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-17 03:02:58,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780759712] [2024-11-17 03:02:58,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:02:58,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-17 03:02:58,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:02:58,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-17 03:02:58,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-17 03:02:58,944 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 03:03:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 03:03:01,632 INFO L93 Difference]: Finished difference Result 1548 states and 1802 transitions. [2024-11-17 03:03:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 03:03:01,633 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 03:03:01,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 03:03:01,636 INFO L225 Difference]: With dead ends: 1548 [2024-11-17 03:03:01,636 INFO L226 Difference]: Without dead ends: 1548 [2024-11-17 03:03:01,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650 [2024-11-17 03:03:01,636 INFO L432 NwaCegarLoop]: 1014 mSDtfsCounter, 1582 mSDsluCounter, 8909 mSDsCounter, 0 mSdLazyCounter, 6545 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.5s IncrementalHoareTripleChecker+Time [2024-11-17 03:03:01,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 9923 Invalid, 6571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 6545 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-17 03:03:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-17 03:03:01,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1544. [2024-11-17 03:03:01,650 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 03:03:01,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1794 transitions. [2024-11-17 03:03:01,652 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1794 transitions. Word has length 97 [2024-11-17 03:03:01,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 03:03:01,652 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 1794 transitions. [2024-11-17 03:03:01,652 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 03:03:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1794 transitions. [2024-11-17 03:03:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 03:03:01,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 03:03:01,653 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 03:03:01,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-17 03:03:01,654 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 03:03:01,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:03:01,654 INFO L85 PathProgramCache]: Analyzing trace with hash 823168445, now seen corresponding path program 1 times [2024-11-17 03:03:01,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:03:01,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221390937] [2024-11-17 03:03:01,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:03:01,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:03:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:03:02,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-17 03:03:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:03:02,461 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 03:03:02,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:03:02,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221390937] [2024-11-17 03:03:02,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221390937] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:03:02,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:03:02,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-17 03:03:02,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145911697] [2024-11-17 03:03:02,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:03:02,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 03:03:02,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:03:02,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 03:03:02,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-17 03:03:02,462 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)