./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-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+nlh-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 e486f0f9d7d5faf0af2c33128bdcb8eeb95bb04afff03e23e86c60ceb8da8466 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 00:51:25,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 00:51:25,540 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 00:51:25,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 00:51:25,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 00:51:25,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 00:51:25,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 00:51:25,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 00:51:25,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 00:51:25,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 00:51:25,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 00:51:25,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 00:51:25,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 00:51:25,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 00:51:25,577 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 00:51:25,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 00:51:25,578 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 00:51:25,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 00:51:25,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 00:51:25,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 00:51:25,579 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 00:51:25,583 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 00:51:25,584 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 00:51:25,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 00:51:25,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 00:51:25,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 00:51:25,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 00:51:25,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 00:51:25,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 00:51:25,585 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 00:51:25,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 00:51:25,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 00:51:25,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 00:51:25,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:51:25,587 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 00:51:25,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 00:51:25,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 00:51:25,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 00:51:25,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 00:51:25,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 00:51:25,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 00:51:25,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 00:51:25,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e486f0f9d7d5faf0af2c33128bdcb8eeb95bb04afff03e23e86c60ceb8da8466 [2024-11-17 00:51:25,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 00:51:25,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 00:51:25,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 00:51:25,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 00:51:25,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 00:51:25,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2024-11-17 00:51:27,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 00:51:27,708 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 00:51:27,709 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2024-11-17 00:51:27,732 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29786c3fe/b52036b823a54cdda69b041831516e92/FLAGf80bc7ed5 [2024-11-17 00:51:27,750 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29786c3fe/b52036b823a54cdda69b041831516e92 [2024-11-17 00:51:27,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 00:51:27,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 00:51:27,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 00:51:27,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 00:51:27,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 00:51:27,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:51:27" (1/1) ... [2024-11-17 00:51:27,763 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da64b04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:27, skipping insertion in model container [2024-11-17 00:51:27,763 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 12:51:27" (1/1) ... [2024-11-17 00:51:27,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 00:51:28,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:51:28,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 00:51:28,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 00:51:28,538 INFO L204 MainTranslator]: Completed translation [2024-11-17 00:51:28,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28 WrapperNode [2024-11-17 00:51:28,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 00:51:28,540 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 00:51:28,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 00:51:28,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 00:51:28,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,676 INFO L138 Inliner]: procedures = 18, calls = 620, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2285 [2024-11-17 00:51:28,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 00:51:28,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 00:51:28,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 00:51:28,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 00:51:28,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,708 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,775 INFO L175 MemorySlicer]: Split 221 memory accesses to 5 slices as follows [2, 41, 7, 2, 169]. 76 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, 0, 0, 0, 127]. [2024-11-17 00:51:28,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,879 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,898 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 00:51:28,929 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 00:51:28,929 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 00:51:28,933 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 00:51:28,934 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (1/1) ... [2024-11-17 00:51:28,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 00:51:28,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 00:51:29,011 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 00:51:29,015 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 00:51:29,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 00:51:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 00:51:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 00:51:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-17 00:51:29,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-17 00:51:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 00:51:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 00:51:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 00:51:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 00:51:29,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-17 00:51:29,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 00:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 00:51:29,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 00:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 00:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 00:51:29,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 00:51:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 00:51:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 00:51:29,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 00:51:29,250 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 00:51:29,252 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 00:51:37,073 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1280: havoc main_~__tmp_44~0#1, main_~__VERIFIER_assert__Id_MCDC_92~42#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~41#1, main_~Id_MCDC_89____CPAchecker_TMP_0~42#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~42#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~42#1;havoc main_~__tmp_43~0#1, main_~__VERIFIER_assert__Id_MCDC_92~41#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~40#1, main_~Id_MCDC_89____CPAchecker_TMP_0~41#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~41#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~41#1;havoc main_~__tmp_42~0#1, main_~__VERIFIER_assert__Id_MCDC_92~40#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~39#1, main_~Id_MCDC_89____CPAchecker_TMP_0~40#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~40#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~40#1;havoc main_~__tmp_41~0#1, main_~__VERIFIER_assert__Id_MCDC_92~39#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~38#1, main_~Id_MCDC_89____CPAchecker_TMP_0~39#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~39#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~39#1;havoc main_~__tmp_40~0#1, main_~__VERIFIER_assert__Id_MCDC_92~38#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~37#1, main_~Id_MCDC_89____CPAchecker_TMP_0~38#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~38#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~38#1;havoc main_~__tmp_39~0#1, main_~__VERIFIER_assert__Id_MCDC_92~37#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~36#1, main_~Id_MCDC_89____CPAchecker_TMP_0~37#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~37#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~37#1;havoc main_~__tmp_38~0#1, main_~__VERIFIER_assert__Id_MCDC_92~36#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~35#1, main_~Id_MCDC_89____CPAchecker_TMP_0~36#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~36#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~36#1;havoc main_~__tmp_37~0#1, main_~__VERIFIER_assert__Id_MCDC_92~35#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~34#1, main_~Id_MCDC_89____CPAchecker_TMP_0~35#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~35#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~35#1;havoc main_~__tmp_36~0#1, main_~__VERIFIER_assert__Id_MCDC_92~34#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~33#1, main_~Id_MCDC_89____CPAchecker_TMP_0~34#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~34#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~34#1;havoc main_~__tmp_35~0#1, main_~__VERIFIER_assert__Id_MCDC_92~33#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~32#1, main_~Id_MCDC_89____CPAchecker_TMP_0~33#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~33#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~33#1;havoc main_~__tmp_34~0#1, main_~__VERIFIER_assert__Id_MCDC_92~32#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~31#1, main_~Id_MCDC_89____CPAchecker_TMP_0~32#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~32#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~32#1;havoc main_~__tmp_33~0#1, main_~__VERIFIER_assert__Id_MCDC_92~31#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~30#1, main_~Id_MCDC_89____CPAchecker_TMP_0~31#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~31#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~31#1;havoc main_~__tmp_32~0#1, main_~__VERIFIER_assert__Id_MCDC_92~30#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~29#1, main_~Id_MCDC_89____CPAchecker_TMP_0~30#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~30#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~30#1;havoc main_~__tmp_31~0#1, main_~__VERIFIER_assert__Id_MCDC_92~29#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~28#1, main_~Id_MCDC_89____CPAchecker_TMP_0~29#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~29#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~29#1;havoc main_~__tmp_30~0#1, main_~__VERIFIER_assert__Id_MCDC_92~28#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~27#1, main_~Id_MCDC_89____CPAchecker_TMP_0~28#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~28#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~28#1;havoc main_~__tmp_29~0#1, main_~__VERIFIER_assert__Id_MCDC_92~27#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~26#1, main_~Id_MCDC_89____CPAchecker_TMP_0~27#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~27#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~27#1;havoc main_~__tmp_28~0#1, main_~__VERIFIER_assert__Id_MCDC_92~26#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~25#1, main_~Id_MCDC_89____CPAchecker_TMP_0~26#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~26#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~26#1;havoc main_~__tmp_27~0#1, main_~__VERIFIER_assert__Id_MCDC_92~25#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~24#1, main_~Id_MCDC_89____CPAchecker_TMP_0~25#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~25#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~25#1;havoc main_~__tmp_26~0#1, main_~__VERIFIER_assert__Id_MCDC_92~24#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~23#1, main_~Id_MCDC_89____CPAchecker_TMP_0~24#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~24#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~24#1;havoc main_~__tmp_25~0#1, main_~__VERIFIER_assert__Id_MCDC_92~23#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~22#1, main_~Id_MCDC_89____CPAchecker_TMP_0~23#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~23#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~23#1;havoc main_~__tmp_24~0#1, main_~__VERIFIER_assert__Id_MCDC_92~22#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~21#1, main_~Id_MCDC_89____CPAchecker_TMP_0~22#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~22#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~22#1;havoc main_~__tmp_23~0#1, main_~__VERIFIER_assert__Id_MCDC_92~21#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~20#1, main_~Id_MCDC_89____CPAchecker_TMP_0~21#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~21#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~21#1;havoc main_~__tmp_22~0#1, main_~__VERIFIER_assert__Id_MCDC_92~20#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~19#1, main_~Id_MCDC_89____CPAchecker_TMP_0~20#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~20#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~20#1;havoc main_~__tmp_21~0#1, main_~__VERIFIER_assert__Id_MCDC_92~19#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~18#1, main_~Id_MCDC_89____CPAchecker_TMP_0~19#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~19#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~19#1;havoc main_~__tmp_20~0#1, main_~__VERIFIER_assert__Id_MCDC_92~18#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~17#1, main_~Id_MCDC_89____CPAchecker_TMP_0~18#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~18#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~18#1;havoc main_~__tmp_19~0#1, main_~__VERIFIER_assert__Id_MCDC_92~17#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~16#1, main_~Id_MCDC_89____CPAchecker_TMP_0~17#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~17#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~17#1;havoc main_~__tmp_18~0#1, main_~__VERIFIER_assert__Id_MCDC_92~16#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~15#1, main_~Id_MCDC_89____CPAchecker_TMP_0~16#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~16#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~16#1;havoc main_~__tmp_17~0#1, main_~__VERIFIER_assert__Id_MCDC_92~15#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~14#1, main_~Id_MCDC_89____CPAchecker_TMP_0~15#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~15#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~15#1;havoc main_~__tmp_16~0#1, main_~__VERIFIER_assert__Id_MCDC_92~14#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~13#1, main_~Id_MCDC_89____CPAchecker_TMP_0~14#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~14#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~14#1;havoc main_~__tmp_15~0#1, main_~__VERIFIER_assert__Id_MCDC_92~13#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~12#1, main_~Id_MCDC_89____CPAchecker_TMP_0~13#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~13#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~13#1;havoc main_~__tmp_14~0#1, main_~__VERIFIER_assert__Id_MCDC_92~12#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~11#1, main_~Id_MCDC_89____CPAchecker_TMP_0~12#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~12#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~12#1;havoc main_~__tmp_13~0#1, main_~__VERIFIER_assert__Id_MCDC_92~11#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~10#1, main_~Id_MCDC_89____CPAchecker_TMP_0~11#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~11#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~11#1;havoc main_~__tmp_12~0#1, main_~__VERIFIER_assert__Id_MCDC_92~10#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~9#1, main_~Id_MCDC_89____CPAchecker_TMP_0~10#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~10#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~10#1;havoc main_~__tmp_11~0#1, main_~__VERIFIER_assert__Id_MCDC_92~9#1;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 00:51:37,183 INFO L? ?]: Removed 646 outVars from TransFormulas that were not future-live. [2024-11-17 00:51:37,183 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 00:51:37,219 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 00:51:37,220 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 00:51:37,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:51:37 BoogieIcfgContainer [2024-11-17 00:51:37,220 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 00:51:37,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 00:51:37,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 00:51:37,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 00:51:37,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 12:51:27" (1/3) ... [2024-11-17 00:51:37,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f95410b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:51:37, skipping insertion in model container [2024-11-17 00:51:37,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 12:51:28" (2/3) ... [2024-11-17 00:51:37,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f95410b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 12:51:37, skipping insertion in model container [2024-11-17 00:51:37,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 12:51:37" (3/3) ... [2024-11-17 00:51:37,235 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+nlh-reducer.c [2024-11-17 00:51:37,253 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 00:51:37,253 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 168 error locations. [2024-11-17 00:51:37,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 00:51:37,334 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;@55e0daf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 00:51:37,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 168 error locations. [2024-11-17 00:51:37,340 INFO L276 IsEmpty]: Start isEmpty. Operand has 473 states, 304 states have (on average 2.1184210526315788) internal successors, (644), 472 states have internal predecessors, (644), 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 00:51:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-17 00:51:37,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:51:37,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-17 00:51:37,352 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr166REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-17 00:51:37,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:51:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash 31337054, now seen corresponding path program 1 times [2024-11-17 00:51:37,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:51:37,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930554000] [2024-11-17 00:51:37,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:51:37,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:51:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:51:38,213 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 00:51:38,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:51:38,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930554000] [2024-11-17 00:51:38,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930554000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:51:38,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:51:38,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:51:38,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84926836] [2024-11-17 00:51:38,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:51:38,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:51:38,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:51:38,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:51:38,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:51:38,253 INFO L87 Difference]: Start difference. First operand has 473 states, 304 states have (on average 2.1184210526315788) internal successors, (644), 472 states have internal predecessors, (644), 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 00:51:43,567 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 00:51:47,862 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 00:51:53,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:51:53,870 INFO L93 Difference]: Finished difference Result 431 states and 558 transitions. [2024-11-17 00:51:53,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:51:53,873 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 00:51:53,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:51:53,885 INFO L225 Difference]: With dead ends: 431 [2024-11-17 00:51:53,885 INFO L226 Difference]: Without dead ends: 428 [2024-11-17 00:51:53,886 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 00:51:53,889 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 501 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-17 00:51:53,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 479 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 689 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2024-11-17 00:51:53,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-17 00:51:53,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2024-11-17 00:51:53,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 301 states have (on average 1.8438538205980066) internal successors, (555), 427 states have internal predecessors, (555), 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 00:51:53,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 555 transitions. [2024-11-17 00:51:53,943 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 555 transitions. Word has length 4 [2024-11-17 00:51:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:51:53,944 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 555 transitions. [2024-11-17 00:51:53,944 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 00:51:53,944 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 555 transitions. [2024-11-17 00:51:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-17 00:51:53,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:51:53,945 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-17 00:51:53,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 00:51:53,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr167REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-17 00:51:53,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:51:53,946 INFO L85 PathProgramCache]: Analyzing trace with hash 31337055, now seen corresponding path program 1 times [2024-11-17 00:51:53,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:51:53,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557412728] [2024-11-17 00:51:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:51:53,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:51:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:51:54,528 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 00:51:54,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:51:54,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557412728] [2024-11-17 00:51:54,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557412728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:51:54,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:51:54,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:51:54,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662528071] [2024-11-17 00:51:54,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:51:54,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:51:54,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:51:54,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:51:54,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:51:54,532 INFO L87 Difference]: Start difference. First operand 428 states and 555 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 00:51:59,539 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 00:52:03,826 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 00:52:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:07,614 INFO L93 Difference]: Finished difference Result 387 states and 514 transitions. [2024-11-17 00:52:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:52:07,615 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 00:52:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:07,617 INFO L225 Difference]: With dead ends: 387 [2024-11-17 00:52:07,617 INFO L226 Difference]: Without dead ends: 387 [2024-11-17 00:52:07,617 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 00:52:07,619 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 80 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:07,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 1071 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 387 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2024-11-17 00:52:07,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-17 00:52:07,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-17 00:52:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 301 states have (on average 1.7076411960132891) internal successors, (514), 386 states have internal predecessors, (514), 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 00:52:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 514 transitions. [2024-11-17 00:52:07,643 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 514 transitions. Word has length 4 [2024-11-17 00:52:07,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:07,643 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 514 transitions. [2024-11-17 00:52:07,643 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 00:52:07,644 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 514 transitions. [2024-11-17 00:52:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-17 00:52:07,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:07,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 00:52:07,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 00:52:07,648 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-17 00:52:07,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash 970477477, now seen corresponding path program 1 times [2024-11-17 00:52:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:07,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857936620] [2024-11-17 00:52:07,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:07,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:07,962 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 00:52:07,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:07,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857936620] [2024-11-17 00:52:07,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857936620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:07,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:07,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:52:07,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570907244] [2024-11-17 00:52:07,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:07,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:52:07,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:07,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:52:07,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:52:07,968 INFO L87 Difference]: Start difference. First operand 387 states and 514 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 00:52:13,124 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 00:52:17,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-17 00:52:21,726 WARN L539 Checker$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 00:52:27,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:27,322 INFO L93 Difference]: Finished difference Result 389 states and 515 transitions. [2024-11-17 00:52:27,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:52:27,322 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 00:52:27,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:27,324 INFO L225 Difference]: With dead ends: 389 [2024-11-17 00:52:27,324 INFO L226 Difference]: Without dead ends: 387 [2024-11-17 00:52:27,325 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 00:52:27,325 INFO L432 NwaCegarLoop]: 470 mSDtfsCounter, 82 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:27,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 940 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 515 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2024-11-17 00:52:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-17 00:52:27,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2024-11-17 00:52:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 301 states have (on average 1.7043189368770764) internal successors, (513), 386 states have internal predecessors, (513), 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 00:52:27,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 513 transitions. [2024-11-17 00:52:27,343 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 513 transitions. Word has length 5 [2024-11-17 00:52:27,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:27,343 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 513 transitions. [2024-11-17 00:52:27,343 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 00:52:27,343 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 513 transitions. [2024-11-17 00:52:27,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 00:52:27,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:27,346 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 00:52:27,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 00:52:27,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-17 00:52:27,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:27,349 INFO L85 PathProgramCache]: Analyzing trace with hash -947198100, now seen corresponding path program 1 times [2024-11-17 00:52:27,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:27,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528087753] [2024-11-17 00:52:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:27,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:33,259 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 00:52:33,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:33,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528087753] [2024-11-17 00:52:33,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528087753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:33,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:33,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:52:33,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206577310] [2024-11-17 00:52:33,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:33,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 00:52:33,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:33,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 00:52:33,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:52:33,262 INFO L87 Difference]: Start difference. First operand 387 states and 513 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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 00:52:35,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:35,558 INFO L93 Difference]: Finished difference Result 390 states and 514 transitions. [2024-11-17 00:52:35,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 00:52:35,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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 00:52:35,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:35,560 INFO L225 Difference]: With dead ends: 390 [2024-11-17 00:52:35,560 INFO L226 Difference]: Without dead ends: 390 [2024-11-17 00:52:35,561 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 00:52:35,562 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 92 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:35,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 762 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-17 00:52:35,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-17 00:52:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 387. [2024-11-17 00:52:35,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 301 states have (on average 1.7009966777408638) internal successors, (512), 386 states have internal predecessors, (512), 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 00:52:35,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 512 transitions. [2024-11-17 00:52:35,572 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 512 transitions. Word has length 89 [2024-11-17 00:52:35,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:35,572 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 512 transitions. [2024-11-17 00:52:35,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 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 00:52:35,573 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 512 transitions. [2024-11-17 00:52:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 00:52:35,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:35,575 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 00:52:35,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 00:52:35,576 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-17 00:52:35,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:35,576 INFO L85 PathProgramCache]: Analyzing trace with hash -947174135, now seen corresponding path program 1 times [2024-11-17 00:52:35,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:35,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926466826] [2024-11-17 00:52:35,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:35,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 00:52:40,960 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 00:52:40,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 00:52:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926466826] [2024-11-17 00:52:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926466826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 00:52:40,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 00:52:40,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 00:52:40,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267219502] [2024-11-17 00:52:40,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 00:52:40,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 00:52:40,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 00:52:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 00:52:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 00:52:40,962 INFO L87 Difference]: Start difference. First operand 387 states and 512 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 00:52:46,136 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 00:52:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 00:52:53,910 INFO L93 Difference]: Finished difference Result 386 states and 511 transitions. [2024-11-17 00:52:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 00:52:53,911 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 00:52:53,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 00:52:53,913 INFO L225 Difference]: With dead ends: 386 [2024-11-17 00:52:53,913 INFO L226 Difference]: Without dead ends: 386 [2024-11-17 00:52:53,913 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 00:52:53,915 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 295 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-17 00:52:53,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 513 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2024-11-17 00:52:53,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-11-17 00:52:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-11-17 00:52:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 301 states have (on average 1.697674418604651) internal successors, (511), 385 states have internal predecessors, (511), 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 00:52:53,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 511 transitions. [2024-11-17 00:52:53,922 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 511 transitions. Word has length 89 [2024-11-17 00:52:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 00:52:53,923 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 511 transitions. [2024-11-17 00:52:53,923 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 00:52:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 511 transitions. [2024-11-17 00:52:53,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-17 00:52:53,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 00:52:53,930 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 00:52:53,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 00:52:53,930 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 165 more)] === [2024-11-17 00:52:53,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 00:52:53,931 INFO L85 PathProgramCache]: Analyzing trace with hash -947174134, now seen corresponding path program 1 times [2024-11-17 00:52:53,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 00:52:53,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674228854] [2024-11-17 00:52:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 00:52:53,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 00:52:58,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat