./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 023d838f 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-023d838-m [2024-11-10 15:32:41,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 15:32:41,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 15:32:41,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 15:32:41,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 15:32:41,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 15:32:41,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 15:32:41,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 15:32:41,472 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 15:32:41,472 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 15:32:41,472 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 15:32:41,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 15:32:41,473 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 15:32:41,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 15:32:41,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 15:32:41,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 15:32:41,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 15:32:41,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 15:32:41,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 15:32:41,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 15:32:41,478 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 15:32:41,478 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 15:32:41,478 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 15:32:41,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 15:32:41,479 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 15:32:41,479 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 15:32:41,479 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 15:32:41,479 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 15:32:41,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 15:32:41,479 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 15:32:41,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 15:32:41,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 15:32:41,480 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 15:32:41,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 15:32:41,480 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 15:32:41,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 15:32:41,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 15:32:41,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 15:32:41,481 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 15:32:41,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 15:32:41,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 15:32:41,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 15:32:41,483 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5a591efb40e891e226106d8590a7409596f3a27aca8b697af826abd4fe5201 [2024-11-10 15:32:41,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 15:32:41,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 15:32:41,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 15:32:41,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 15:32:41,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 15:32:41,686 INFO L431 ainManager$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 [2024-11-10 15:32:42,894 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 15:32:43,053 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 15:32:43,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2024-11-10 15:32:43,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a8e168c8/29beeb89e6b0401487c3f148df07c793/FLAGb9ae335bf [2024-11-10 15:32:43,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a8e168c8/29beeb89e6b0401487c3f148df07c793 [2024-11-10 15:32:43,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 15:32:43,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 15:32:43,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 15:32:43,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 15:32:43,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 15:32:43,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad963ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43, skipping insertion in model container [2024-11-10 15:32:43,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 15:32:43,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 15:32:43,360 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 15:32:43,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 15:32:43,468 INFO L204 MainTranslator]: Completed translation [2024-11-10 15:32:43,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43 WrapperNode [2024-11-10 15:32:43,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 15:32:43,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 15:32:43,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 15:32:43,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 15:32:43,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,524 INFO L138 Inliner]: procedures = 18, calls = 293, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 835 [2024-11-10 15:32:43,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 15:32:43,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 15:32:43,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 15:32:43,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 15:32:43,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,575 INFO L175 MemorySlicer]: Split 189 memory accesses to 5 slices as follows [2, 7, 2, 41, 137]. 72 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 7, 2, 0, 0]. The 127 writes are split as follows [0, 0, 0, 0, 127]. [2024-11-10 15:32:43,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,601 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 15:32:43,616 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 15:32:43,617 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 15:32:43,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 15:32:43,617 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (1/1) ... [2024-11-10 15:32:43,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 15:32:43,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 15:32:43,647 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) [2024-11-10 15:32:43,649 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 [2024-11-10 15:32:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 15:32:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 15:32:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 15:32:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 15:32:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 15:32:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 15:32:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 15:32:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 15:32:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 15:32:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 15:32:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 15:32:43,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 15:32:43,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 15:32:43,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 15:32:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 15:32:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 15:32:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 15:32:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 15:32:43,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 15:32:43,825 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 15:32:43,827 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: 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; [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L382: 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; [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L252: 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; [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L252: 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; [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L304: 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; [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L304: 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; [2024-11-10 15:32:49,992 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: 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; [2024-11-10 15:32:49,993 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L356: 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; [2024-11-10 15:32:49,993 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L176: 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; [2024-11-10 15:32:49,993 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: 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; [2024-11-10 15:32:49,993 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L226: 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; [2024-11-10 15:32:49,993 INFO L1247 $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; [2024-11-10 15:32:49,993 INFO L1247 $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; [2024-11-10 15:32:49,993 INFO L1247 $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; [2024-11-10 15:32:49,993 INFO L1247 $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; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L278: 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; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L278: 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; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L460: havoc main_~__tmp_12~0#1, main_~__VERIFIER_assert__Id_MCDC_92~10#1; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L330: 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; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L330: 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; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L200: 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; [2024-11-10 15:32:49,994 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L200: 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; [2024-11-10 15:32:50,036 INFO L? ?]: Removed 328 outVars from TransFormulas that were not future-live. [2024-11-10 15:32:50,037 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 15:32:50,055 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 15:32:50,057 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 15:32:50,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:32:50 BoogieIcfgContainer [2024-11-10 15:32:50,058 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 15:32:50,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 15:32:50,060 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 15:32:50,062 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 15:32:50,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:32:43" (1/3) ... [2024-11-10 15:32:50,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad96b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:32:50, skipping insertion in model container [2024-11-10 15:32:50,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:32:43" (2/3) ... [2024-11-10 15:32:50,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad96b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:32:50, skipping insertion in model container [2024-11-10 15:32:50,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 03:32:50" (3/3) ... [2024-11-10 15:32:50,065 INFO L112 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2024-11-10 15:32:50,078 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 15:32:50,078 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 104 error locations. [2024-11-10 15:32:50,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 15:32:50,123 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;@4f8c963, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 15:32:50,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 104 error locations. [2024-11-10 15:32:50,127 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) [2024-11-10 15:32:50,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-10 15:32:50,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:32:50,131 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-10 15:32:50,131 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)] === [2024-11-10 15:32:50,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:32:50,135 INFO L85 PathProgramCache]: Analyzing trace with hash 12435678, now seen corresponding path program 1 times [2024-11-10 15:32:50,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:32:50,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494647476] [2024-11-10 15:32:50,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:32:50,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:32:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:32:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:32:50,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:32:50,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494647476] [2024-11-10 15:32:50,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494647476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:32:50,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:32:50,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 15:32:50,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184659950] [2024-11-10 15:32:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:32:50,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 15:32:50,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:32:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 15:32:50,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 15:32:50,865 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) [2024-11-10 15:32:56,051 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 [] [2024-11-10 15:33:00,090 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 [] [2024-11-10 15:33:01,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:33:01,469 INFO L93 Difference]: Finished difference Result 206 states and 236 transitions. [2024-11-10 15:33:01,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 15:33:01,471 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 [2024-11-10 15:33:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:33:01,478 INFO L225 Difference]: With dead ends: 206 [2024-11-10 15:33:01,478 INFO L226 Difference]: Without dead ends: 203 [2024-11-10 15:33:01,479 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 [2024-11-10 15:33:01,481 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 277 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 41 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s 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, 10.5s IncrementalHoareTripleChecker+Time [2024-11-10 15:33:01,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 159 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 267 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-10 15:33:01,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-10 15:33:01,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-10 15:33:01,511 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) [2024-11-10 15:33:01,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 233 transitions. [2024-11-10 15:33:01,513 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 233 transitions. Word has length 4 [2024-11-10 15:33:01,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:33:01,514 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 233 transitions. [2024-11-10 15:33:01,514 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) [2024-11-10 15:33:01,514 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 233 transitions. [2024-11-10 15:33:01,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-10 15:33:01,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:33:01,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-10 15:33:01,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 15:33:01,515 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)] === [2024-11-10 15:33:01,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:33:01,515 INFO L85 PathProgramCache]: Analyzing trace with hash 12435679, now seen corresponding path program 1 times [2024-11-10 15:33:01,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:33:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337126791] [2024-11-10 15:33:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:33:01,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:33:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:33:01,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:33:01,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:33:01,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337126791] [2024-11-10 15:33:01,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337126791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:33:01,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:33:01,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 15:33:01,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679418545] [2024-11-10 15:33:01,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:33:01,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 15:33:01,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:33:01,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 15:33:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 15:33:01,984 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) [2024-11-10 15:33:06,946 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 [] [2024-11-10 15:33:10,975 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 [] [2024-11-10 15:33:11,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:33:11,829 INFO L93 Difference]: Finished difference Result 162 states and 192 transitions. [2024-11-10 15:33:11,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 15:33:11,829 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 [2024-11-10 15:33:11,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:33:11,831 INFO L225 Difference]: With dead ends: 162 [2024-11-10 15:33:11,831 INFO L226 Difference]: Without dead ends: 162 [2024-11-10 15:33:11,831 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 [2024-11-10 15:33:11,832 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, 9.8s IncrementalHoareTripleChecker+Time [2024-11-10 15:33:11,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 331 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 161 Invalid, 2 Unknown, 0 Unchecked, 9.8s Time] [2024-11-10 15:33:11,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-10 15:33:11,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-10 15:33:11,838 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) [2024-11-10 15:33:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 192 transitions. [2024-11-10 15:33:11,839 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 192 transitions. Word has length 4 [2024-11-10 15:33:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:33:11,839 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 192 transitions. [2024-11-10 15:33:11,839 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) [2024-11-10 15:33:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 192 transitions. [2024-11-10 15:33:11,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-10 15:33:11,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:33:11,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-10 15:33:11,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 15:33:11,840 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)] === [2024-11-10 15:33:11,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:33:11,841 INFO L85 PathProgramCache]: Analyzing trace with hash 385143909, now seen corresponding path program 1 times [2024-11-10 15:33:11,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:33:11,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700521740] [2024-11-10 15:33:11,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:33:11,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:33:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:33:12,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:33:12,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:33:12,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700521740] [2024-11-10 15:33:12,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700521740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:33:12,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:33:12,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 15:33:12,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710015767] [2024-11-10 15:33:12,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:33:12,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 15:33:12,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:33:12,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 15:33:12,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 15:33:12,040 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) [2024-11-10 15:33:17,061 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 [] [2024-11-10 15:33:21,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 15:33:25,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 15:33:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:33:26,433 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2024-11-10 15:33:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 15:33:26,434 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 [2024-11-10 15:33:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:33:26,435 INFO L225 Difference]: With dead ends: 164 [2024-11-10 15:33:26,435 INFO L226 Difference]: Without dead ends: 162 [2024-11-10 15:33:26,435 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 [2024-11-10 15:33:26,436 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 82 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s 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, 14.4s IncrementalHoareTripleChecker+Time [2024-11-10 15:33:26,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 298 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2024-11-10 15:33:26,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-10 15:33:26,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-10 15:33:26,455 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) [2024-11-10 15:33:26,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 191 transitions. [2024-11-10 15:33:26,455 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 191 transitions. Word has length 5 [2024-11-10 15:33:26,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:33:26,456 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 191 transitions. [2024-11-10 15:33:26,456 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) [2024-11-10 15:33:26,456 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 191 transitions. [2024-11-10 15:33:26,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 15:33:26,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:33:26,458 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] [2024-11-10 15:33:26,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 15:33:26,459 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)] === [2024-11-10 15:33:26,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:33:26,459 INFO L85 PathProgramCache]: Analyzing trace with hash 746417123, now seen corresponding path program 1 times [2024-11-10 15:33:26,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:33:26,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27763026] [2024-11-10 15:33:26,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:33:26,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:33:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:33:31,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:33:31,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:33:31,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27763026] [2024-11-10 15:33:31,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27763026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:33:31,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:33:31,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 15:33:31,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343694723] [2024-11-10 15:33:31,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:33:31,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 15:33:31,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:33:31,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 15:33:31,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 15:33:31,089 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) [2024-11-10 15:33:36,180 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 [] [2024-11-10 15:33:38,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:33:38,167 INFO L93 Difference]: Finished difference Result 161 states and 190 transitions. [2024-11-10 15:33:38,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 15:33:38,168 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 [2024-11-10 15:33:38,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:33:38,170 INFO L225 Difference]: With dead ends: 161 [2024-11-10 15:33:38,170 INFO L226 Difference]: Without dead ends: 161 [2024-11-10 15:33:38,171 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 [2024-11-10 15:33:38,171 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 71 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s 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, 7.0s IncrementalHoareTripleChecker+Time [2024-11-10 15:33:38,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 257 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 237 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-10 15:33:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-10 15:33:38,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-10 15:33:38,176 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) [2024-11-10 15:33:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 190 transitions. [2024-11-10 15:33:38,177 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 190 transitions. Word has length 89 [2024-11-10 15:33:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:33:38,177 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 190 transitions. [2024-11-10 15:33:38,177 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) [2024-11-10 15:33:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 190 transitions. [2024-11-10 15:33:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 15:33:38,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:33:38,179 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] [2024-11-10 15:33:38,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 15:33:38,180 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)] === [2024-11-10 15:33:38,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:33:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash 746417124, now seen corresponding path program 1 times [2024-11-10 15:33:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:33:38,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593824090] [2024-11-10 15:33:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:33:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:33:41,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:33:43,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:33:43,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:33:43,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593824090] [2024-11-10 15:33:43,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593824090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:33:43,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:33:43,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 15:33:43,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314534543] [2024-11-10 15:33:43,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:33:43,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 15:33:43,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:33:43,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 15:33:43,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 15:33:43,132 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) [2024-11-10 15:33:48,716 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 [] [2024-11-10 15:33:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:33:51,332 INFO L93 Difference]: Finished difference Result 160 states and 188 transitions. [2024-11-10 15:33:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 15:33:51,333 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 [2024-11-10 15:33:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:33:51,334 INFO L225 Difference]: With dead ends: 160 [2024-11-10 15:33:51,334 INFO L226 Difference]: Without dead ends: 160 [2024-11-10 15:33:51,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 15:33:51,335 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 112 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s 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, 7.9s IncrementalHoareTripleChecker+Time [2024-11-10 15:33:51,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 311 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 314 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2024-11-10 15:33:51,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-10 15:33:51,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-10 15:33:51,338 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) [2024-11-10 15:33:51,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2024-11-10 15:33:51,339 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 89 [2024-11-10 15:33:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:33:51,339 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2024-11-10 15:33:51,339 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) [2024-11-10 15:33:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2024-11-10 15:33:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-10 15:33:51,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:33:51,341 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] [2024-11-10 15:33:51,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 15:33:51,341 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)] === [2024-11-10 15:33:51,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:33:51,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1663906692, now seen corresponding path program 1 times [2024-11-10 15:33:51,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:33:51,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250828976] [2024-11-10 15:33:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:33:51,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:33:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:33:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:33:55,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:33:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250828976] [2024-11-10 15:33:55,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250828976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:33:55,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:33:55,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 15:33:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115371269] [2024-11-10 15:33:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:33:55,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 15:33:55,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:33:55,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 15:33:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 15:33:55,350 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) [2024-11-10 15:33:55,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:33:55,387 INFO L93 Difference]: Finished difference Result 160 states and 187 transitions. [2024-11-10 15:33:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 15:33:55,389 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 [2024-11-10 15:33:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:33:55,391 INFO L225 Difference]: With dead ends: 160 [2024-11-10 15:33:55,391 INFO L226 Difference]: Without dead ends: 160 [2024-11-10 15:33:55,392 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 [2024-11-10 15:33:55,392 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 [2024-11-10 15:33:55,394 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] [2024-11-10 15:33:55,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-10 15:33:55,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-10 15:33:55,396 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) [2024-11-10 15:33:55,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 187 transitions. [2024-11-10 15:33:55,397 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 187 transitions. Word has length 90 [2024-11-10 15:33:55,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:33:55,397 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 187 transitions. [2024-11-10 15:33:55,397 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) [2024-11-10 15:33:55,397 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 187 transitions. [2024-11-10 15:33:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-10 15:33:55,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:33:55,398 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] [2024-11-10 15:33:55,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 15:33:55,398 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)] === [2024-11-10 15:33:55,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:33:55,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1466976639, now seen corresponding path program 1 times [2024-11-10 15:33:55,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:33:55,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555528926] [2024-11-10 15:33:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:33:55,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:33:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:34:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:34:04,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:34:04,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555528926] [2024-11-10 15:34:04,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555528926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:34:04,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:34:04,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 15:34:04,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371376911] [2024-11-10 15:34:04,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:34:04,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 15:34:04,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:34:04,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 15:34:04,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 15:34:04,911 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) [2024-11-10 15:34:09,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 15:34:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 15:34:10,465 INFO L93 Difference]: Finished difference Result 160 states and 186 transitions. [2024-11-10 15:34:10,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 15:34:10,466 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 [2024-11-10 15:34:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 15:34:10,467 INFO L225 Difference]: With dead ends: 160 [2024-11-10 15:34:10,467 INFO L226 Difference]: Without dead ends: 160 [2024-11-10 15:34:10,467 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 [2024-11-10 15:34:10,467 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, 5.2s IncrementalHoareTripleChecker+Time [2024-11-10 15:34:10,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 649 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-11-10 15:34:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-10 15:34:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-10 15:34:10,470 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) [2024-11-10 15:34:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 186 transitions. [2024-11-10 15:34:10,470 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 186 transitions. Word has length 92 [2024-11-10 15:34:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 15:34:10,470 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 186 transitions. [2024-11-10 15:34:10,470 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) [2024-11-10 15:34:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 186 transitions. [2024-11-10 15:34:10,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-10 15:34:10,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 15:34:10,471 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] [2024-11-10 15:34:10,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 15:34:10,471 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)] === [2024-11-10 15:34:10,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 15:34:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1019213367, now seen corresponding path program 1 times [2024-11-10 15:34:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 15:34:10,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228439492] [2024-11-10 15:34:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 15:34:10,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 15:34:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 15:34:14,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 15:34:14,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 15:34:14,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228439492] [2024-11-10 15:34:14,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228439492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 15:34:14,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 15:34:14,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 15:34:14,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587771223] [2024-11-10 15:34:14,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 15:34:14,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 15:34:14,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 15:34:14,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 15:34:14,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 15:34:14,810 INFO L87 Difference]: Start difference. First operand 160 states and 186 transitions. Second operand has 5 states, 4 states have (on average 23.5) internal successors, (94), 5 states have internal predecessors, (94), 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)