./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c --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/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -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 de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 00:51:17,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 00:51:17,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 00:51:17,326 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 00:51:17,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 00:51:17,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 00:51:17,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 00:51:17,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 00:51:17,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 00:51:17,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 00:51:17,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 00:51:17,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 00:51:17,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 00:51:17,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 00:51:17,352 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 00:51:17,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 00:51:17,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 00:51:17,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 00:51:17,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 00:51:17,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 00:51:17,354 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 00:51:17,357 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 00:51:17,357 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 00:51:17,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 00:51:17,358 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 00:51:17,358 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 00:51:17,358 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 00:51:17,358 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 00:51:17,358 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 00:51:17,359 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 00:51:17,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 00:51:17,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 00:51:17,359 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 00:51:17,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:51:17,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 00:51:17,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 00:51:17,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 00:51:17,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 00:51:17,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 00:51:17,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 00:51:17,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 00:51:17,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 00:51:17,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 [2024-11-17 00:51:17,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 00:51:17,586 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 00:51:17,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 00:51:17,589 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 00:51:17,590 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 00:51:17,591 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2024-11-17 00:51:18,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 00:51:19,055 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 00:51:19,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2024-11-17 00:51:19,069 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2152713d/0d71d3c713f446f1a50ae544a725340e/FLAGf5ee25906 [2024-11-17 00:51:19,082 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2152713d/0d71d3c713f446f1a50ae544a725340e [2024-11-17 00:51:19,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 00:51:19,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 00:51:19,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 00:51:19,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 00:51:19,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 00:51:19,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cc9f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19, skipping insertion in model container [2024-11-17 00:51:19,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 00:51:19,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:51:19,351 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 00:51:19,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:51:19,429 INFO L204 MainTranslator]: Completed translation [2024-11-17 00:51:19,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19 WrapperNode [2024-11-17 00:51:19,430 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 00:51:19,431 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 00:51:19,431 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 00:51:19,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 00:51:19,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,532 INFO L138 Inliner]: procedures = 18, calls = 293, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 835 [2024-11-17 00:51:19,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 00:51:19,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 00:51:19,533 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 00:51:19,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 00:51:19,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,587 INFO L175 MemorySlicer]: Split 189 memory accesses to 5 slices as follows [2, 137, 7, 2, 41]. 72 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 0, 7, 2, 0]. The 127 writes are split as follows [0, 127, 0, 0, 0]. [2024-11-17 00:51:19,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,588 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,603 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 00:51:19,614 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 00:51:19,614 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 00:51:19,614 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 00:51:19,615 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (1/1) ... [2024-11-17 00:51:19,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:51:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:51:19,649 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 00:51:19,654 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 00:51:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 00:51:19,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 00:51:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 00:51:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-17 00:51:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-17 00:51:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 00:51:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 00:51:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 00:51:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 00:51:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 00:51:19,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 00:51:19,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-17 00:51:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-17 00:51:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-17 00:51:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-17 00:51:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-17 00:51:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 00:51:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 00:51:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 00:51:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 00:51:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 00:51:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 00:51:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 00:51:19,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 00:51:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 00:51:19,849 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 00:51:19,851 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 00:51:26,168 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L441: havoc main_~Id_MCDC_89____CPAchecker_TMP_2~9#1;havoc main_~__tmp_11~0#1, main_~__VERIFIER_assert__Id_MCDC_92~9#1; [2024-11-17 00:51:26,169 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L408: havoc main_~Id_MCDC_89____CPAchecker_TMP_2~8#1, main_~Id_MCDC_89____CPAchecker_TMP_0~9#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~9#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~9#1;havoc main_~__tmp_10~0#1, main_~__VERIFIER_assert__Id_MCDC_92~8#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~7#1, main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~8#1;havoc main_~__tmp_9~0#1, main_~__VERIFIER_assert__Id_MCDC_92~7#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~6#1, main_~Id_MCDC_89____CPAchecker_TMP_0~7#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~7#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~7#1;havoc main_~__tmp_8~0#1, main_~__VERIFIER_assert__Id_MCDC_92~6#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~5#1, main_~Id_MCDC_89____CPAchecker_TMP_0~6#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~6#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~6#1;havoc main_~__tmp_7~0#1, main_~__VERIFIER_assert__Id_MCDC_92~5#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~4#1, main_~Id_MCDC_89____CPAchecker_TMP_0~5#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~5#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~5#1;havoc main_~__tmp_6~0#1, main_~__VERIFIER_assert__Id_MCDC_92~4#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~3#1, main_~Id_MCDC_89____CPAchecker_TMP_0~4#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~4#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~4#1;havoc main_~__tmp_5~0#1, main_~__VERIFIER_assert__Id_MCDC_92~3#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~2#1, main_~Id_MCDC_89____CPAchecker_TMP_0~3#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~3#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~3#1;havoc main_~__tmp_4~0#1, main_~__VERIFIER_assert__Id_MCDC_92~2#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~1#1, main_~Id_MCDC_89____CPAchecker_TMP_0~2#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~2#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~2#1;havoc main_~__tmp_3~0#1, main_~__VERIFIER_assert__Id_MCDC_92~1#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~0#1, main_~Id_MCDC_89____CPAchecker_TMP_0~1#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~1#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~1#1;havoc main_~__tmp_2~0#1, main_~__VERIFIER_assert__Id_MCDC_92~0#1;call ULTIMATE.dealloc(main_~#Id_MCDC_89__Id_MCDC_95~0#1.base, main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset);havoc main_~#Id_MCDC_89__Id_MCDC_95~0#1.base, main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset;havoc main_~__tmp_1~0#1.base, main_~__tmp_1~0#1.offset, main_~Id_MCDC_89__Id_MCDC_88~0#1.base, main_~Id_MCDC_89__Id_MCDC_88~0#1.offset, main_~Id_MCDC_89__Id_MCDC_94~0#1.base, main_~Id_MCDC_89__Id_MCDC_94~0#1.offset, main_~#Id_MCDC_89__Id_MCDC_95~0#1.base, main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset, main_~Id_MCDC_89__Id_MCDC_96~0#1, main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~0#1;call ULTIMATE.dealloc(main_~#main__Id_MCDC_119~0#1.base, main_~#main__Id_MCDC_119~0#1.offset);havoc main_~#main__Id_MCDC_119~0#1.base, main_~#main__Id_MCDC_119~0#1.offset; [2024-11-17 00:51:26,169 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L460: havoc main_~__tmp_12~0#1, main_~__VERIFIER_assert__Id_MCDC_92~10#1; [2024-11-17 00:51:26,215 INFO L? ?]: Removed 328 outVars from TransFormulas that were not future-live. [2024-11-17 00:51:26,215 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 00:51:26,232 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 00:51:26,232 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 00:51:26,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:51:26 BoogieIcfgContainer [2024-11-17 00:51:26,233 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 00:51:26,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 00:51:26,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 00:51:26,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 00:51:26,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:51:19" (1/3) ... [2024-11-17 00:51:26,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6dea71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:51:26, skipping insertion in model container [2024-11-17 00:51:26,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:19" (2/3) ... [2024-11-17 00:51:26,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6dea71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:51:26, skipping insertion in model container [2024-11-17 00:51:26,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:51:26" (3/3) ... [2024-11-17 00:51:26,243 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2024-11-17 00:51:26,261 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 00:51:26,261 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 104 error locations. [2024-11-17 00:51:26,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 00:51:26,315 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;@12868f21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 00:51:26,315 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-17 00:51:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 143 states have (on average 2.020979020979021) internal successors, (289), 247 states have internal predecessors, (289), 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 00:51:26,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-17 00:51:26,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:51:26,324 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-17 00:51:26,325 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr102REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:51:26,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:51:26,329 INFO L85 PathProgramCache]: Analyzing trace with hash 12404894, now seen corresponding path program 1 times [2024-11-17 00:51:26,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:51:26,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33492100] [2024-11-17 00:51:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:51:26,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:51:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:51:26,966 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 00:51:26,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:51:26,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33492100] [2024-11-17 00:51:26,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33492100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:51:26,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:51:26,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:51:26,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079563246] [2024-11-17 00:51:26,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:51:26,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:51:26,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:51:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:51:26,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:51:26,995 INFO L87 Difference]: Start difference. First operand has 248 states, 143 states have (on average 2.020979020979021) internal successors, (289), 247 states have internal predecessors, (289), 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 00:51:32,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:51:36,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:51:38,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:51:38,159 INFO L93 Difference]: Finished difference Result 206 states and 236 transitions. [2024-11-17 00:51:38,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:51:38,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-17 00:51:38,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:51:38,169 INFO L225 Difference]: With dead ends: 206 [2024-11-17 00:51:38,169 INFO L226 Difference]: Without dead ends: 203 [2024-11-17 00:51:38,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:51:38,173 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 277 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:51:38,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 159 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 267 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2024-11-17 00:51:38,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-17 00:51:38,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-17 00:51:38,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 140 states have (on average 1.6642857142857144) internal successors, (233), 202 states have internal predecessors, (233), 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 00:51:38,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 233 transitions. [2024-11-17 00:51:38,218 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 233 transitions. Word has length 4 [2024-11-17 00:51:38,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:51:38,218 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 233 transitions. [2024-11-17 00:51:38,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 00:51:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 233 transitions. [2024-11-17 00:51:38,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-17 00:51:38,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:51:38,222 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-17 00:51:38,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 00:51:38,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr103REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:51:38,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:51:38,227 INFO L85 PathProgramCache]: Analyzing trace with hash 12404895, now seen corresponding path program 1 times [2024-11-17 00:51:38,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:51:38,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42111876] [2024-11-17 00:51:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:51:38,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:51:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:51:38,932 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 00:51:38,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:51:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42111876] [2024-11-17 00:51:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42111876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:51:38,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:51:38,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:51:38,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370843450] [2024-11-17 00:51:38,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:51:38,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:51:38,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:51:38,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:51:38,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:51:38,935 INFO L87 Difference]: Start difference. First operand 203 states and 233 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 00:51:43,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:51:48,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:51:49,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:51:49,357 INFO L93 Difference]: Finished difference Result 162 states and 192 transitions. [2024-11-17 00:51:49,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:51:49,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-17 00:51:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:51:49,361 INFO L225 Difference]: With dead ends: 162 [2024-11-17 00:51:49,361 INFO L226 Difference]: Without dead ends: 162 [2024-11-17 00:51:49,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:51:49,362 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 80 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:51:49,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 331 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 161 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-17 00:51:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-17 00:51:49,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-17 00:51:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.3714285714285714) internal successors, (192), 161 states have internal predecessors, (192), 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 00:51:49,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 192 transitions. [2024-11-17 00:51:49,371 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 192 transitions. Word has length 4 [2024-11-17 00:51:49,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:51:49,371 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 192 transitions. [2024-11-17 00:51:49,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 00:51:49,371 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 192 transitions. [2024-11-17 00:51:49,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-17 00:51:49,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:51:49,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 00:51:49,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 00:51:49,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:51:49,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:51:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash 384190597, now seen corresponding path program 1 times [2024-11-17 00:51:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:51:49,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733228340] [2024-11-17 00:51:49,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:51:49,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:51:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:51:49,599 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 00:51:49,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:51:49,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733228340] [2024-11-17 00:51:49,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733228340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:51:49,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:51:49,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:51:49,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766287186] [2024-11-17 00:51:49,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:51:49,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:51:49,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:51:49,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:51:49,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:51:49,600 INFO L87 Difference]: Start difference. First operand 162 states and 192 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 00:51:54,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:51:58,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:52:03,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:52:04,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:04,880 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2024-11-17 00:52:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:52:04,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-17 00:52:04,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:04,882 INFO L225 Difference]: With dead ends: 164 [2024-11-17 00:52:04,882 INFO L226 Difference]: Without dead ends: 162 [2024-11-17 00:52:04,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:52:04,883 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 82 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:04,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 298 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2024-11-17 00:52:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-17 00:52:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-17 00:52:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.3642857142857143) internal successors, (191), 161 states have internal predecessors, (191), 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 00:52:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 191 transitions. [2024-11-17 00:52:04,890 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 191 transitions. Word has length 5 [2024-11-17 00:52:04,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:04,890 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 191 transitions. [2024-11-17 00:52:04,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 00:52:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 191 transitions. [2024-11-17 00:52:04,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 00:52:04,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:04,892 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 00:52:04,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 00:52:04,892 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:52:04,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:04,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1287764258, now seen corresponding path program 1 times [2024-11-17 00:52:04,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:04,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885021111] [2024-11-17 00:52:04,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:04,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:10,122 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 00:52:10,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:10,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885021111] [2024-11-17 00:52:10,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885021111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:10,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:10,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:52:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363135283] [2024-11-17 00:52:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:10,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:52:10,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:52:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:52:10,123 INFO L87 Difference]: Start difference. First operand 162 states and 191 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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 00:52:15,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:52:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:17,675 INFO L93 Difference]: Finished difference Result 161 states and 190 transitions. [2024-11-17 00:52:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:52:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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 89 [2024-11-17 00:52:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:17,678 INFO L225 Difference]: With dead ends: 161 [2024-11-17 00:52:17,678 INFO L226 Difference]: Without dead ends: 161 [2024-11-17 00:52:17,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:52:17,679 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 71 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:17,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 257 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-17 00:52:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-17 00:52:17,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-17 00:52:17,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 160 states have internal predecessors, (190), 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 00:52:17,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2024-11-17 00:52:17,689 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 89 [2024-11-17 00:52:17,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:17,690 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2024-11-17 00:52:17,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 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 00:52:17,690 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2024-11-17 00:52:17,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 00:52:17,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:17,691 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 00:52:17,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 00:52:17,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:52:17,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1287764259, now seen corresponding path program 1 times [2024-11-17 00:52:17,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:17,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088839539] [2024-11-17 00:52:17,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:17,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:24,077 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 00:52:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088839539] [2024-11-17 00:52:24,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088839539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:24,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:24,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 00:52:24,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145746217] [2024-11-17 00:52:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:24,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:52:24,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:24,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:52:24,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:52:24,079 INFO L87 Difference]: Start difference. First operand 161 states and 190 transitions. Second operand has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 00:52:29,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:52:32,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:32,979 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions. [2024-11-17 00:52:32,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:52:32,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 89 [2024-11-17 00:52:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:32,982 INFO L225 Difference]: With dead ends: 160 [2024-11-17 00:52:32,982 INFO L226 Difference]: Without dead ends: 160 [2024-11-17 00:52:32,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-17 00:52:32,983 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 112 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:32,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 311 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 314 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2024-11-17 00:52:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-17 00:52:32,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-17 00:52:32,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 140 states have (on average 1.3428571428571427) internal successors, (188), 159 states have internal predecessors, (188), 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 00:52:32,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2024-11-17 00:52:32,990 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 89 [2024-11-17 00:52:32,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:32,994 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2024-11-17 00:52:32,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.25) internal successors, (89), 5 states have internal predecessors, (89), 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 00:52:32,994 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2024-11-17 00:52:32,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-17 00:52:32,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:32,996 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] [2024-11-17 00:52:32,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 00:52:32,996 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:52:32,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:32,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1265800677, now seen corresponding path program 1 times [2024-11-17 00:52:32,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:32,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977924510] [2024-11-17 00:52:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:32,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:37,781 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 00:52:37,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:37,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977924510] [2024-11-17 00:52:37,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977924510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:37,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:37,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:52:37,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409011752] [2024-11-17 00:52:37,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:37,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:52:37,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:37,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:52:37,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:52:37,783 INFO L87 Difference]: Start difference. First operand 160 states and 188 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 00:52:37,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:37,823 INFO L93 Difference]: Finished difference Result 160 states and 187 transitions. [2024-11-17 00:52:37,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:52:37,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2024-11-17 00:52:37,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:37,827 INFO L225 Difference]: With dead ends: 160 [2024-11-17 00:52:37,827 INFO L226 Difference]: Without dead ends: 160 [2024-11-17 00:52:37,827 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 00:52:37,828 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:37,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 00:52:37,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-17 00:52:37,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-17 00:52:37,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 140 states have (on average 1.3357142857142856) internal successors, (187), 159 states have internal predecessors, (187), 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 00:52:37,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 187 transitions. [2024-11-17 00:52:37,838 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 187 transitions. Word has length 90 [2024-11-17 00:52:37,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:37,838 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 187 transitions. [2024-11-17 00:52:37,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 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 00:52:37,838 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 187 transitions. [2024-11-17 00:52:37,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-17 00:52:37,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:37,843 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 00:52:37,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 00:52:37,844 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:52:37,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:37,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1137277983, now seen corresponding path program 1 times [2024-11-17 00:52:37,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:37,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923846570] [2024-11-17 00:52:37,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:37,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:48,161 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 00:52:48,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:48,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923846570] [2024-11-17 00:52:48,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923846570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:48,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:48,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 00:52:48,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387984006] [2024-11-17 00:52:48,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:48,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 00:52:48,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:48,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 00:52:48,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 00:52:48,163 INFO L87 Difference]: Start difference. First operand 160 states and 187 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 00:52:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:52:53,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:53,967 INFO L93 Difference]: Finished difference Result 160 states and 186 transitions. [2024-11-17 00:52:53,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 00:52:53,968 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 92 [2024-11-17 00:52:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:53,969 INFO L225 Difference]: With dead ends: 160 [2024-11-17 00:52:53,969 INFO L226 Difference]: Without dead ends: 160 [2024-11-17 00:52:53,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-17 00:52:53,970 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 2 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:53,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 649 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2024-11-17 00:52:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-17 00:52:53,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-17 00:52:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 140 states have (on average 1.3285714285714285) internal successors, (186), 159 states have internal predecessors, (186), 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 00:52:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 186 transitions. [2024-11-17 00:52:53,973 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 186 transitions. Word has length 92 [2024-11-17 00:52:53,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:53,974 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 186 transitions. [2024-11-17 00:52:53,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 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 00:52:53,974 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 186 transitions. [2024-11-17 00:52:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 00:52:53,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:53,975 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 00:52:53,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 00:52:53,976 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 101 more)] === [2024-11-17 00:52:53,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:53,976 INFO L85 PathProgramCache]: Analyzing trace with hash 2006323287, now seen corresponding path program 1 times [2024-11-17 00:52:53,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:53,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647287833] [2024-11-17 00:52:53,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:53,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms