./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 18:56:11,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 18:56:12,005 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 18:56:12,009 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 18:56:12,010 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 18:56:12,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 18:56:12,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 18:56:12,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 18:56:12,025 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 18:56:12,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 18:56:12,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 18:56:12,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 18:56:12,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 18:56:12,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 18:56:12,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 18:56:12,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 18:56:12,026 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 18:56:12,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 18:56:12,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 18:56:12,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 18:56:12,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 18:56:12,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:56:12,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 18:56:12,028 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 18:56:12,029 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2024-11-07 18:56:12,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 18:56:12,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 18:56:12,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 18:56:12,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 18:56:12,232 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 18:56:12,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2024-11-07 18:56:13,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 18:56:13,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 18:56:13,796 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2024-11-07 18:56:13,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cbe45cb8d/050d255b9c54441d815c325a9d10f4bb/FLAG58d278a72 [2024-11-07 18:56:14,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cbe45cb8d/050d255b9c54441d815c325a9d10f4bb [2024-11-07 18:56:14,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 18:56:14,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 18:56:14,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 18:56:14,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 18:56:14,039 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 18:56:14,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@653464ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14, skipping insertion in model container [2024-11-07 18:56:14,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:56:14,446 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,460 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,463 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,465 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,469 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,485 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,487 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,489 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,490 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:56:14,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:56:14,508 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 18:56:14,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:56:14,651 INFO L204 MainTranslator]: Completed translation [2024-11-07 18:56:14,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14 WrapperNode [2024-11-07 18:56:14,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 18:56:14,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 18:56:14,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 18:56:14,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 18:56:14,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,749 INFO L138 Inliner]: procedures = 177, calls = 724, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3292 [2024-11-07 18:56:14,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 18:56:14,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 18:56:14,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 18:56:14,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 18:56:14,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,852 INFO L175 MemorySlicer]: Split 208 memory accesses to 3 slices as follows [2, 172, 34]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 46 writes are split as follows [0, 42, 4]. [2024-11-07 18:56:14,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,930 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 18:56:14,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 18:56:14,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 18:56:14,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 18:56:14,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (1/1) ... [2024-11-07 18:56:14,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:56:14,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:56:14,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 18:56:14,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-07 18:56:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 18:56:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-07 18:56:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-07 18:56:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-07 18:56:15,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-07 18:56:15,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 18:56:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 18:56:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 18:56:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 18:56:15,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 18:56:15,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 18:56:15,193 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 18:56:15,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 18:56:15,205 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:56:15,225 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:56:15,238 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:56:17,845 INFO L? ?]: Removed 1537 outVars from TransFormulas that were not future-live. [2024-11-07 18:56:17,845 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 18:56:17,880 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 18:56:17,881 INFO L316 CfgBuilder]: Removed 54 assume(true) statements. [2024-11-07 18:56:17,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:56:17 BoogieIcfgContainer [2024-11-07 18:56:17,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 18:56:17,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 18:56:17,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 18:56:17,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 18:56:17,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:56:14" (1/3) ... [2024-11-07 18:56:17,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509659fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:56:17, skipping insertion in model container [2024-11-07 18:56:17,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:56:14" (2/3) ... [2024-11-07 18:56:17,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509659fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:56:17, skipping insertion in model container [2024-11-07 18:56:17,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:56:17" (3/3) ... [2024-11-07 18:56:17,888 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test9-1.i [2024-11-07 18:56:17,897 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 18:56:17,897 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 424 error locations. [2024-11-07 18:56:17,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 18:56:17,946 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;@763edd92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 18:56:17,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 424 error locations. [2024-11-07 18:56:17,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2024-11-07 18:56:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-07 18:56:17,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:17,957 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-07 18:56:17,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:17,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:17,961 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-07 18:56:17,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:17,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483364055] [2024-11-07 18:56:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:17,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:18,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:18,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483364055] [2024-11-07 18:56:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483364055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:18,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:18,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:56:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730648068] [2024-11-07 18:56:18,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:18,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:56:18,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:18,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:56:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:18,095 INFO L87 Difference]: Start difference. First operand has 2066 states, 1136 states have (on average 2.007042253521127) internal successors, (2280), 2059 states have internal predecessors, (2280), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-07 18:56:19,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:19,107 INFO L93 Difference]: Finished difference Result 2052 states and 3216 transitions. [2024-11-07 18:56:19,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:56:19,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-07 18:56:19,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:19,128 INFO L225 Difference]: With dead ends: 2052 [2024-11-07 18:56:19,129 INFO L226 Difference]: Without dead ends: 2050 [2024-11-07 18:56:19,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:19,132 INFO L432 NwaCegarLoop]: 2827 mSDtfsCounter, 2091 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2594 SdHoareTripleChecker+Valid, 2879 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:19,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2594 Valid, 2879 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 18:56:19,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-07 18:56:19,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2024-11-07 18:56:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1138 states have (on average 1.9384885764499122) internal successors, (2206), 2043 states have internal predecessors, (2206), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2024-11-07 18:56:19,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3214 transitions. [2024-11-07 18:56:19,512 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3214 transitions. Word has length 3 [2024-11-07 18:56:19,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:19,516 INFO L471 AbstractCegarLoop]: Abstraction has 2050 states and 3214 transitions. [2024-11-07 18:56:19,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-07 18:56:19,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3214 transitions. [2024-11-07 18:56:19,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-07 18:56:19,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:19,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-07 18:56:19,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 18:56:19,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:19,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-07 18:56:19,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:19,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156379878] [2024-11-07 18:56:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:19,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156379878] [2024-11-07 18:56:19,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156379878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:19,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:19,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:56:19,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404474290] [2024-11-07 18:56:19,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:19,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:56:19,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:19,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:56:19,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:19,611 INFO L87 Difference]: Start difference. First operand 2050 states and 3214 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-07 18:56:20,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:20,839 INFO L93 Difference]: Finished difference Result 3814 states and 6130 transitions. [2024-11-07 18:56:20,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:56:20,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-11-07 18:56:20,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:20,856 INFO L225 Difference]: With dead ends: 3814 [2024-11-07 18:56:20,856 INFO L226 Difference]: Without dead ends: 3814 [2024-11-07 18:56:20,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:20,857 INFO L432 NwaCegarLoop]: 2929 mSDtfsCounter, 1908 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 5209 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:20,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 5209 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 18:56:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2024-11-07 18:56:21,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3550. [2024-11-07 18:56:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2139 states have (on average 1.9205236091631603) internal successors, (4108), 3541 states have internal predecessors, (4108), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6120 transitions. [2024-11-07 18:56:21,190 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6120 transitions. Word has length 3 [2024-11-07 18:56:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:21,190 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6120 transitions. [2024-11-07 18:56:21,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-07 18:56:21,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6120 transitions. [2024-11-07 18:56:21,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 18:56:21,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:21,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:21,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 18:56:21,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:21,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:21,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278099, now seen corresponding path program 1 times [2024-11-07 18:56:21,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:21,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695841614] [2024-11-07 18:56:21,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:21,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:21,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:21,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695841614] [2024-11-07 18:56:21,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695841614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:21,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:21,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:56:21,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105822023] [2024-11-07 18:56:21,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:21,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:56:21,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:21,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:56:21,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:21,302 INFO L87 Difference]: Start difference. First operand 3550 states and 6120 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:56:22,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:22,545 INFO L93 Difference]: Finished difference Result 6220 states and 11072 transitions. [2024-11-07 18:56:22,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:56:22,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-07 18:56:22,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:22,569 INFO L225 Difference]: With dead ends: 6220 [2024-11-07 18:56:22,569 INFO L226 Difference]: Without dead ends: 6220 [2024-11-07 18:56:22,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:22,570 INFO L432 NwaCegarLoop]: 5189 mSDtfsCounter, 1816 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 7679 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:22,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 7679 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 18:56:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2024-11-07 18:56:23,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 3618. [2024-11-07 18:56:23,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 2217 states have (on average 1.9174560216508796) internal successors, (4251), 3609 states have internal predecessors, (4251), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 6263 transitions. [2024-11-07 18:56:23,126 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 6263 transitions. Word has length 8 [2024-11-07 18:56:23,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:23,126 INFO L471 AbstractCegarLoop]: Abstraction has 3618 states and 6263 transitions. [2024-11-07 18:56:23,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:56:23,126 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 6263 transitions. [2024-11-07 18:56:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 18:56:23,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:23,127 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:23,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 18:56:23,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:23,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:23,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1329278098, now seen corresponding path program 1 times [2024-11-07 18:56:23,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:23,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067951788] [2024-11-07 18:56:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:23,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:23,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:23,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:23,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067951788] [2024-11-07 18:56:23,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067951788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:23,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:23,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:56:23,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22157063] [2024-11-07 18:56:23,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:23,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:56:23,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:23,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:56:23,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:23,181 INFO L87 Difference]: Start difference. First operand 3618 states and 6263 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:56:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:24,085 INFO L93 Difference]: Finished difference Result 4881 states and 8573 transitions. [2024-11-07 18:56:24,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:56:24,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-07 18:56:24,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:24,102 INFO L225 Difference]: With dead ends: 4881 [2024-11-07 18:56:24,103 INFO L226 Difference]: Without dead ends: 4881 [2024-11-07 18:56:24,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:24,104 INFO L432 NwaCegarLoop]: 5027 mSDtfsCounter, 2076 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2579 SdHoareTripleChecker+Valid, 7332 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:24,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2579 Valid, 7332 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 18:56:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4881 states. [2024-11-07 18:56:24,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4881 to 3571. [2024-11-07 18:56:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3571 states, 2217 states have (on average 1.8822733423545333) internal successors, (4173), 3562 states have internal predecessors, (4173), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:24,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3571 states to 3571 states and 6185 transitions. [2024-11-07 18:56:24,386 INFO L78 Accepts]: Start accepts. Automaton has 3571 states and 6185 transitions. Word has length 8 [2024-11-07 18:56:24,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:24,386 INFO L471 AbstractCegarLoop]: Abstraction has 3571 states and 6185 transitions. [2024-11-07 18:56:24,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:56:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3571 states and 6185 transitions. [2024-11-07 18:56:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-07 18:56:24,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:24,390 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:24,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 18:56:24,391 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr422ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:24,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1321452160, now seen corresponding path program 1 times [2024-11-07 18:56:24,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:24,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878587955] [2024-11-07 18:56:24,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:24,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:24,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:24,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:24,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878587955] [2024-11-07 18:56:24,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878587955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:24,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:24,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:56:24,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189129263] [2024-11-07 18:56:24,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:24,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:56:24,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:24,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:56:24,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:56:24,466 INFO L87 Difference]: Start difference. First operand 3571 states and 6185 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-07 18:56:25,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:25,218 INFO L93 Difference]: Finished difference Result 6790 states and 11777 transitions. [2024-11-07 18:56:25,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:56:25,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-07 18:56:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:25,270 INFO L225 Difference]: With dead ends: 6790 [2024-11-07 18:56:25,271 INFO L226 Difference]: Without dead ends: 6790 [2024-11-07 18:56:25,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:25,275 INFO L432 NwaCegarLoop]: 3407 mSDtfsCounter, 2105 mSDsluCounter, 5997 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 9404 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:25,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 9404 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 18:56:25,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6790 states. [2024-11-07 18:56:25,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6790 to 3573. [2024-11-07 18:56:25,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 2219 states have (on average 1.8814781433077963) internal successors, (4175), 3564 states have internal predecessors, (4175), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:25,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 6187 transitions. [2024-11-07 18:56:25,709 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 6187 transitions. Word has length 10 [2024-11-07 18:56:25,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:25,710 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 6187 transitions. [2024-11-07 18:56:25,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-11-07 18:56:25,710 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 6187 transitions. [2024-11-07 18:56:25,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-07 18:56:25,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:25,710 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:25,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 18:56:25,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:25,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:25,713 INFO L85 PathProgramCache]: Analyzing trace with hash 183846334, now seen corresponding path program 1 times [2024-11-07 18:56:25,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:25,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653064359] [2024-11-07 18:56:25,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:25,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:25,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:25,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653064359] [2024-11-07 18:56:25,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653064359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:25,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:25,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:56:25,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686063678] [2024-11-07 18:56:25,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:25,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:56:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:25,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:56:25,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:56:25,788 INFO L87 Difference]: Start difference. First operand 3573 states and 6187 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-07 18:56:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:27,837 INFO L93 Difference]: Finished difference Result 3648 states and 6293 transitions. [2024-11-07 18:56:27,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:56:27,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-07 18:56:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:27,850 INFO L225 Difference]: With dead ends: 3648 [2024-11-07 18:56:27,850 INFO L226 Difference]: Without dead ends: 3648 [2024-11-07 18:56:27,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:27,852 INFO L432 NwaCegarLoop]: 2728 mSDtfsCounter, 2341 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2844 SdHoareTripleChecker+Valid, 4328 SdHoareTripleChecker+Invalid, 2368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:27,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2844 Valid, 4328 Invalid, 2368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 18:56:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3648 states. [2024-11-07 18:56:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3648 to 3550. [2024-11-07 18:56:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 2219 states have (on average 1.8607480847228481) internal successors, (4129), 3541 states have internal predecessors, (4129), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 6141 transitions. [2024-11-07 18:56:28,071 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 6141 transitions. Word has length 18 [2024-11-07 18:56:28,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:28,071 INFO L471 AbstractCegarLoop]: Abstraction has 3550 states and 6141 transitions. [2024-11-07 18:56:28,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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) [2024-11-07 18:56:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 6141 transitions. [2024-11-07 18:56:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-07 18:56:28,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:28,072 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:28,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 18:56:28,073 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:28,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:28,074 INFO L85 PathProgramCache]: Analyzing trace with hash 183846335, now seen corresponding path program 1 times [2024-11-07 18:56:28,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:28,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172668687] [2024-11-07 18:56:28,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:28,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:28,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:28,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172668687] [2024-11-07 18:56:28,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172668687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:28,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:28,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:56:28,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482117188] [2024-11-07 18:56:28,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:28,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:56:28,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:28,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:56:28,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:28,143 INFO L87 Difference]: Start difference. First operand 3550 states and 6141 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-07 18:56:28,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:28,179 INFO L93 Difference]: Finished difference Result 3412 states and 5935 transitions. [2024-11-07 18:56:28,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:56:28,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-07 18:56:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:28,189 INFO L225 Difference]: With dead ends: 3412 [2024-11-07 18:56:28,189 INFO L226 Difference]: Without dead ends: 3412 [2024-11-07 18:56:28,189 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 [2024-11-07 18:56:28,191 INFO L432 NwaCegarLoop]: 3009 mSDtfsCounter, 61 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 5965 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:28,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 5965 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:56:28,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2024-11-07 18:56:28,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3412. [2024-11-07 18:56:28,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 2093 states have (on average 1.8743430482560917) internal successors, (3923), 3403 states have internal predecessors, (3923), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 5935 transitions. [2024-11-07 18:56:28,379 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 5935 transitions. Word has length 18 [2024-11-07 18:56:28,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:28,379 INFO L471 AbstractCegarLoop]: Abstraction has 3412 states and 5935 transitions. [2024-11-07 18:56:28,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-07 18:56:28,379 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 5935 transitions. [2024-11-07 18:56:28,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 18:56:28,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:28,380 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] [2024-11-07 18:56:28,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 18:56:28,380 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:28,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash 582825947, now seen corresponding path program 1 times [2024-11-07 18:56:28,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:28,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387907116] [2024-11-07 18:56:28,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:28,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:28,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:28,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387907116] [2024-11-07 18:56:28,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387907116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:28,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:28,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:56:28,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023017268] [2024-11-07 18:56:28,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:28,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:56:28,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:28,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:56:28,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:56:28,446 INFO L87 Difference]: Start difference. First operand 3412 states and 5935 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-07 18:56:28,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:28,499 INFO L93 Difference]: Finished difference Result 3383 states and 5885 transitions. [2024-11-07 18:56:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:56:28,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2024-11-07 18:56:28,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:28,507 INFO L225 Difference]: With dead ends: 3383 [2024-11-07 18:56:28,507 INFO L226 Difference]: Without dead ends: 3383 [2024-11-07 18:56:28,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:28,509 INFO L432 NwaCegarLoop]: 2974 mSDtfsCounter, 41 mSDsluCounter, 5920 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 8894 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:28,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 8894 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:56:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-07 18:56:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3377. [2024-11-07 18:56:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 2065 states have (on average 1.872639225181598) internal successors, (3867), 3368 states have internal predecessors, (3867), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5879 transitions. [2024-11-07 18:56:28,666 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5879 transitions. Word has length 20 [2024-11-07 18:56:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:28,667 INFO L471 AbstractCegarLoop]: Abstraction has 3377 states and 5879 transitions. [2024-11-07 18:56:28,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2024-11-07 18:56:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5879 transitions. [2024-11-07 18:56:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-07 18:56:28,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:28,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:28,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 18:56:28,668 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:28,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:28,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1292750889, now seen corresponding path program 1 times [2024-11-07 18:56:28,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:28,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998759065] [2024-11-07 18:56:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:28,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:28,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:28,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998759065] [2024-11-07 18:56:28,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998759065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:28,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:28,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:56:28,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519222852] [2024-11-07 18:56:28,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:28,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:56:28,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:28,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:56:28,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:56:28,813 INFO L87 Difference]: Start difference. First operand 3377 states and 5879 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-07 18:56:30,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:30,783 INFO L93 Difference]: Finished difference Result 6073 states and 10832 transitions. [2024-11-07 18:56:30,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:56:30,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2024-11-07 18:56:30,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:30,797 INFO L225 Difference]: With dead ends: 6073 [2024-11-07 18:56:30,798 INFO L226 Difference]: Without dead ends: 6073 [2024-11-07 18:56:30,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:30,798 INFO L432 NwaCegarLoop]: 2812 mSDtfsCounter, 1817 mSDsluCounter, 3579 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:30,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 6391 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 18:56:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6073 states. [2024-11-07 18:56:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6073 to 3373. [2024-11-07 18:56:31,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2065 states have (on average 1.8687651331719128) internal successors, (3859), 3364 states have internal predecessors, (3859), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:31,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 5871 transitions. [2024-11-07 18:56:31,163 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 5871 transitions. Word has length 34 [2024-11-07 18:56:31,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:31,164 INFO L471 AbstractCegarLoop]: Abstraction has 3373 states and 5871 transitions. [2024-11-07 18:56:31,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-07 18:56:31,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 5871 transitions. [2024-11-07 18:56:31,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 18:56:31,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:31,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:56:31,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 18:56:31,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:31,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:31,166 INFO L85 PathProgramCache]: Analyzing trace with hash 808848765, now seen corresponding path program 1 times [2024-11-07 18:56:31,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:31,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192959663] [2024-11-07 18:56:31,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:31,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:31,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:31,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:31,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192959663] [2024-11-07 18:56:31,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192959663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:31,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:31,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:56:31,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7273902] [2024-11-07 18:56:31,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:31,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:56:31,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:31,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:56:31,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:56:31,259 INFO L87 Difference]: Start difference. First operand 3373 states and 5871 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-07 18:56:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:31,321 INFO L93 Difference]: Finished difference Result 3373 states and 5863 transitions. [2024-11-07 18:56:31,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:56:31,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 68 [2024-11-07 18:56:31,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:31,331 INFO L225 Difference]: With dead ends: 3373 [2024-11-07 18:56:31,331 INFO L226 Difference]: Without dead ends: 3373 [2024-11-07 18:56:31,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:31,333 INFO L432 NwaCegarLoop]: 2969 mSDtfsCounter, 21 mSDsluCounter, 5907 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8876 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:31,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8876 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:56:31,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2024-11-07 18:56:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3373. [2024-11-07 18:56:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3373 states, 2065 states have (on average 1.8648910411622277) internal successors, (3851), 3364 states have internal predecessors, (3851), 1007 states have call successors, (1007), 3 states have call predecessors, (1007), 2 states have return successors, (1005), 7 states have call predecessors, (1005), 1005 states have call successors, (1005) [2024-11-07 18:56:31,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3373 states to 3373 states and 5863 transitions. [2024-11-07 18:56:31,584 INFO L78 Accepts]: Start accepts. Automaton has 3373 states and 5863 transitions. Word has length 68 [2024-11-07 18:56:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:31,585 INFO L471 AbstractCegarLoop]: Abstraction has 3373 states and 5863 transitions. [2024-11-07 18:56:31,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-07 18:56:31,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3373 states and 5863 transitions. [2024-11-07 18:56:31,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 18:56:31,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:31,587 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] [2024-11-07 18:56:31,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 18:56:31,587 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:31,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash -324916151, now seen corresponding path program 1 times [2024-11-07 18:56:31,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:31,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939890726] [2024-11-07 18:56:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:31,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:31,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939890726] [2024-11-07 18:56:31,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939890726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:31,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:31,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:56:31,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257000074] [2024-11-07 18:56:31,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:31,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:56:31,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:31,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:56:31,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:56:31,730 INFO L87 Difference]: Start difference. First operand 3373 states and 5863 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-07 18:56:31,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:31,813 INFO L93 Difference]: Finished difference Result 5883 states and 10585 transitions. [2024-11-07 18:56:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:56:31,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2024-11-07 18:56:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:31,830 INFO L225 Difference]: With dead ends: 5883 [2024-11-07 18:56:31,830 INFO L226 Difference]: Without dead ends: 5883 [2024-11-07 18:56:31,830 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 [2024-11-07 18:56:31,831 INFO L432 NwaCegarLoop]: 3283 mSDtfsCounter, 1354 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 6222 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:31,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 6222 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:56:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5883 states. [2024-11-07 18:56:32,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5883 to 5826. [2024-11-07 18:56:32,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 3518 states have (on average 1.8675383740761797) internal successors, (6570), 5817 states have internal predecessors, (6570), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-07 18:56:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 10582 transitions. [2024-11-07 18:56:32,195 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 10582 transitions. Word has length 76 [2024-11-07 18:56:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:32,195 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 10582 transitions. [2024-11-07 18:56:32,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2024-11-07 18:56:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 10582 transitions. [2024-11-07 18:56:32,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 18:56:32,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:32,198 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] [2024-11-07 18:56:32,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 18:56:32,199 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:32,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:32,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1172114397, now seen corresponding path program 1 times [2024-11-07 18:56:32,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:32,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353188487] [2024-11-07 18:56:32,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:32,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:32,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:32,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353188487] [2024-11-07 18:56:32,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353188487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:32,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:32,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 18:56:32,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672073952] [2024-11-07 18:56:32,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:32,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 18:56:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 18:56:32,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 18:56:32,580 INFO L87 Difference]: Start difference. First operand 5826 states and 10582 transitions. Second operand has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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) [2024-11-07 18:56:34,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:34,462 INFO L93 Difference]: Finished difference Result 5788 states and 10530 transitions. [2024-11-07 18:56:34,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:56:34,463 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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 79 [2024-11-07 18:56:34,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:34,477 INFO L225 Difference]: With dead ends: 5788 [2024-11-07 18:56:34,477 INFO L226 Difference]: Without dead ends: 5788 [2024-11-07 18:56:34,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-07 18:56:34,478 INFO L432 NwaCegarLoop]: 2492 mSDtfsCounter, 3737 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4240 SdHoareTripleChecker+Valid, 3944 SdHoareTripleChecker+Invalid, 2475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:34,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4240 Valid, 3944 Invalid, 2475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 18:56:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2024-11-07 18:56:34,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5710. [2024-11-07 18:56:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5710 states, 3440 states have (on average 1.8494186046511627) internal successors, (6362), 5701 states have internal predecessors, (6362), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-07 18:56:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5710 states to 5710 states and 10374 transitions. [2024-11-07 18:56:34,808 INFO L78 Accepts]: Start accepts. Automaton has 5710 states and 10374 transitions. Word has length 79 [2024-11-07 18:56:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:34,809 INFO L471 AbstractCegarLoop]: Abstraction has 5710 states and 10374 transitions. [2024-11-07 18:56:34,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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) [2024-11-07 18:56:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5710 states and 10374 transitions. [2024-11-07 18:56:34,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 18:56:34,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:34,810 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] [2024-11-07 18:56:34,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 18:56:34,810 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:34,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:34,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1012783132, now seen corresponding path program 1 times [2024-11-07 18:56:34,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:34,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971120170] [2024-11-07 18:56:34,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:34,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:35,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:35,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971120170] [2024-11-07 18:56:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971120170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:35,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:35,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:56:35,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333958460] [2024-11-07 18:56:35,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:35,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 18:56:35,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 18:56:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:35,005 INFO L87 Difference]: Start difference. First operand 5710 states and 10374 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-07 18:56:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:35,520 INFO L93 Difference]: Finished difference Result 5709 states and 10372 transitions. [2024-11-07 18:56:35,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:56:35,521 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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 84 [2024-11-07 18:56:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:35,534 INFO L225 Difference]: With dead ends: 5709 [2024-11-07 18:56:35,534 INFO L226 Difference]: Without dead ends: 5709 [2024-11-07 18:56:35,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 18:56:35,535 INFO L432 NwaCegarLoop]: 2942 mSDtfsCounter, 2 mSDsluCounter, 7858 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10800 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:35,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10800 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 975 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 18:56:35,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5709 states. [2024-11-07 18:56:35,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5709 to 5709. [2024-11-07 18:56:35,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5709 states, 3440 states have (on average 1.8488372093023255) internal successors, (6360), 5700 states have internal predecessors, (6360), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-07 18:56:35,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5709 states to 5709 states and 10372 transitions. [2024-11-07 18:56:35,872 INFO L78 Accepts]: Start accepts. Automaton has 5709 states and 10372 transitions. Word has length 84 [2024-11-07 18:56:35,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:35,872 INFO L471 AbstractCegarLoop]: Abstraction has 5709 states and 10372 transitions. [2024-11-07 18:56:35,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-07 18:56:35,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5709 states and 10372 transitions. [2024-11-07 18:56:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 18:56:35,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:35,873 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] [2024-11-07 18:56:35,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 18:56:35,873 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:35,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1012783133, now seen corresponding path program 1 times [2024-11-07 18:56:35,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:35,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343788082] [2024-11-07 18:56:35,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:36,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:36,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343788082] [2024-11-07 18:56:36,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343788082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:36,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:36,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:56:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451587817] [2024-11-07 18:56:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:36,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 18:56:36,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:36,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 18:56:36,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:56:36,202 INFO L87 Difference]: Start difference. First operand 5709 states and 10372 transitions. Second operand has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-07 18:56:36,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:36,781 INFO L93 Difference]: Finished difference Result 5708 states and 10370 transitions. [2024-11-07 18:56:36,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:56:36,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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 84 [2024-11-07 18:56:36,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:36,793 INFO L225 Difference]: With dead ends: 5708 [2024-11-07 18:56:36,794 INFO L226 Difference]: Without dead ends: 5708 [2024-11-07 18:56:36,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 18:56:36,794 INFO L432 NwaCegarLoop]: 2942 mSDtfsCounter, 1 mSDsluCounter, 7842 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10784 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:36,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10784 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 18:56:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5708 states. [2024-11-07 18:56:37,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5708 to 5708. [2024-11-07 18:56:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5708 states, 3438 states have (on average 1.8493310063990693) internal successors, (6358), 5699 states have internal predecessors, (6358), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 2 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-07 18:56:37,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5708 states to 5708 states and 10370 transitions. [2024-11-07 18:56:37,219 INFO L78 Accepts]: Start accepts. Automaton has 5708 states and 10370 transitions. Word has length 84 [2024-11-07 18:56:37,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:37,219 INFO L471 AbstractCegarLoop]: Abstraction has 5708 states and 10370 transitions. [2024-11-07 18:56:37,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.0) internal successors, (84), 5 states have internal predecessors, (84), 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) [2024-11-07 18:56:37,219 INFO L276 IsEmpty]: Start isEmpty. Operand 5708 states and 10370 transitions. [2024-11-07 18:56:37,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 18:56:37,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:37,220 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] [2024-11-07 18:56:37,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 18:56:37,220 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:37,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash 901507843, now seen corresponding path program 1 times [2024-11-07 18:56:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421789860] [2024-11-07 18:56:37,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:37,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:37,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:56:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:37,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:37,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421789860] [2024-11-07 18:56:37,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421789860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 18:56:37,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300779818] [2024-11-07 18:56:37,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:37,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 18:56:37,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 18:56:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 18:56:37,422 INFO L87 Difference]: Start difference. First operand 5708 states and 10370 transitions. Second operand has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:56:41,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:41,518 INFO L93 Difference]: Finished difference Result 5726 states and 10396 transitions. [2024-11-07 18:56:41,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 18:56:41,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2024-11-07 18:56:41,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:41,539 INFO L225 Difference]: With dead ends: 5726 [2024-11-07 18:56:41,539 INFO L226 Difference]: Without dead ends: 5726 [2024-11-07 18:56:41,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-07 18:56:41,540 INFO L432 NwaCegarLoop]: 2927 mSDtfsCounter, 17 mSDsluCounter, 9915 mSDsCounter, 0 mSdLazyCounter, 4312 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12842 SdHoareTripleChecker+Invalid, 4817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 4312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:41,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 12842 Invalid, 4817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 4312 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-07 18:56:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5726 states. [2024-11-07 18:56:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5726 to 5717. [2024-11-07 18:56:41,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3446 states have (on average 1.8482298316889147) internal successors, (6369), 5706 states have internal predecessors, (6369), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-07 18:56:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 10386 transitions. [2024-11-07 18:56:41,896 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 10386 transitions. Word has length 92 [2024-11-07 18:56:41,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:41,896 INFO L471 AbstractCegarLoop]: Abstraction has 5717 states and 10386 transitions. [2024-11-07 18:56:41,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:56:41,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 10386 transitions. [2024-11-07 18:56:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 18:56:41,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:41,897 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] [2024-11-07 18:56:41,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 18:56:41,897 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:41,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:41,899 INFO L85 PathProgramCache]: Analyzing trace with hash 901507844, now seen corresponding path program 1 times [2024-11-07 18:56:41,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:41,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929561911] [2024-11-07 18:56:41,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:41,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:42,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:56:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:42,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:42,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929561911] [2024-11-07 18:56:42,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929561911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:56:42,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:56:42,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 18:56:42,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176880063] [2024-11-07 18:56:42,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:56:42,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 18:56:42,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:42,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 18:56:42,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 18:56:42,352 INFO L87 Difference]: Start difference. First operand 5717 states and 10386 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:56:45,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:45,663 INFO L93 Difference]: Finished difference Result 5717 states and 10384 transitions. [2024-11-07 18:56:45,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:56:45,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 92 [2024-11-07 18:56:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:45,699 INFO L225 Difference]: With dead ends: 5717 [2024-11-07 18:56:45,699 INFO L226 Difference]: Without dead ends: 5717 [2024-11-07 18:56:45,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-07 18:56:45,700 INFO L432 NwaCegarLoop]: 2931 mSDtfsCounter, 18 mSDsluCounter, 8135 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 1007 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11066 SdHoareTripleChecker+Invalid, 4147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1007 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:45,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11066 Invalid, 4147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1007 Valid, 3140 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-07 18:56:45,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5717 states. [2024-11-07 18:56:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5717 to 5717. [2024-11-07 18:56:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5717 states, 3446 states have (on average 1.8476494486361) internal successors, (6367), 5706 states have internal predecessors, (6367), 2007 states have call successors, (2007), 3 states have call predecessors, (2007), 3 states have return successors, (2010), 11 states have call predecessors, (2010), 2005 states have call successors, (2010) [2024-11-07 18:56:46,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5717 states to 5717 states and 10384 transitions. [2024-11-07 18:56:46,177 INFO L78 Accepts]: Start accepts. Automaton has 5717 states and 10384 transitions. Word has length 92 [2024-11-07 18:56:46,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:46,177 INFO L471 AbstractCegarLoop]: Abstraction has 5717 states and 10384 transitions. [2024-11-07 18:56:46,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:56:46,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5717 states and 10384 transitions. [2024-11-07 18:56:46,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 18:56:46,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:46,178 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] [2024-11-07 18:56:46,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 18:56:46,178 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:56:46,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:56:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash 97138687, now seen corresponding path program 1 times [2024-11-07 18:56:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:56:46,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91087534] [2024-11-07 18:56:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:46,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:56:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:46,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:56:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:46,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:46,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:56:46,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91087534] [2024-11-07 18:56:46,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91087534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:56:46,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273278772] [2024-11-07 18:56:46,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:56:46,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 18:56:46,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:56:46,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 18:56:46,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 18:56:46,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:56:46,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-07 18:56:46,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:56:46,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 18:56:46,876 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-07 18:56:46,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-07 18:56:46,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-07 18:56:46,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-07 18:56:47,108 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-07 18:56:47,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-07 18:56:47,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-07 18:56:47,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:56:47,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:56:47,189 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_646 (Array Int Int))) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem54#1.base| v_ArrVal_646) |c_ULTIMATE.start_main_~user~0#1.base|) (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) 1)) is different from false [2024-11-07 18:56:47,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273278772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:56:47,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:56:47,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-07 18:56:47,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645707327] [2024-11-07 18:56:47,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:56:47,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 18:56:47,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:56:47,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 18:56:47,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=292, Unknown=1, NotChecked=34, Total=380 [2024-11-07 18:56:47,193 INFO L87 Difference]: Start difference. First operand 5717 states and 10384 transitions. Second operand has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 18:56:59,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:56:59,335 INFO L93 Difference]: Finished difference Result 5724 states and 10390 transitions. [2024-11-07 18:56:59,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 18:56:59,335 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 93 [2024-11-07 18:56:59,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:56:59,348 INFO L225 Difference]: With dead ends: 5724 [2024-11-07 18:56:59,348 INFO L226 Difference]: Without dead ends: 5724 [2024-11-07 18:56:59,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=469, Unknown=1, NotChecked=44, Total=600 [2024-11-07 18:56:59,349 INFO L432 NwaCegarLoop]: 2616 mSDtfsCounter, 1881 mSDsluCounter, 21246 mSDsCounter, 0 mSdLazyCounter, 14384 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 23862 SdHoareTripleChecker+Invalid, 14899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 14384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-07 18:56:59,349 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 23862 Invalid, 14899 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 14384 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-07 18:56:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2024-11-07 18:56:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5721. [2024-11-07 18:56:59,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5721 states, 3450 states have (on average 1.846376811594203) internal successors, (6370), 5709 states have internal predecessors, (6370), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-07 18:56:59,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5721 states to 5721 states and 10384 transitions. [2024-11-07 18:56:59,856 INFO L78 Accepts]: Start accepts. Automaton has 5721 states and 10384 transitions. Word has length 93 [2024-11-07 18:56:59,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:56:59,856 INFO L471 AbstractCegarLoop]: Abstraction has 5721 states and 10384 transitions. [2024-11-07 18:56:59,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 18:56:59,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5721 states and 10384 transitions. [2024-11-07 18:56:59,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 18:56:59,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:56:59,857 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] [2024-11-07 18:56:59,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 18:57:00,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 18:57:00,062 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:57:00,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:57:00,065 INFO L85 PathProgramCache]: Analyzing trace with hash 97138688, now seen corresponding path program 1 times [2024-11-07 18:57:00,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:57:00,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788452069] [2024-11-07 18:57:00,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:00,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:57:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:00,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:57:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:00,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:57:00,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788452069] [2024-11-07 18:57:00,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788452069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:57:00,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718377991] [2024-11-07 18:57:00,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:00,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 18:57:00,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:57:00,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 18:57:00,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 18:57:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:00,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-07 18:57:00,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:57:00,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 18:57:00,921 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-07 18:57:00,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-07 18:57:00,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-07 18:57:00,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-07 18:57:00,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-07 18:57:01,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-07 18:57:01,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-07 18:57:01,117 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-07 18:57:01,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-07 18:57:01,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-07 18:57:01,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-07 18:57:01,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-07 18:57:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:01,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:57:01,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718377991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:57:01,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:57:01,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2024-11-07 18:57:01,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624566103] [2024-11-07 18:57:01,281 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:57:01,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 18:57:01,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:57:01,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 18:57:01,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=389, Unknown=8, NotChecked=0, Total=462 [2024-11-07 18:57:01,281 INFO L87 Difference]: Start difference. First operand 5721 states and 10384 transitions. Second operand has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 18:57:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:57:10,832 INFO L93 Difference]: Finished difference Result 5723 states and 10388 transitions. [2024-11-07 18:57:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 18:57:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 93 [2024-11-07 18:57:10,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:57:10,853 INFO L225 Difference]: With dead ends: 5723 [2024-11-07 18:57:10,857 INFO L226 Difference]: Without dead ends: 5723 [2024-11-07 18:57:10,858 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=588, Unknown=8, NotChecked=0, Total=702 [2024-11-07 18:57:10,858 INFO L432 NwaCegarLoop]: 2619 mSDtfsCounter, 1889 mSDsluCounter, 18228 mSDsCounter, 0 mSdLazyCounter, 10975 mSolverCounterSat, 1022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 20847 SdHoareTripleChecker+Invalid, 11997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1022 IncrementalHoareTripleChecker+Valid, 10975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-07 18:57:10,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 20847 Invalid, 11997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1022 Valid, 10975 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-07 18:57:10,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5723 states. [2024-11-07 18:57:11,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5723 to 5711. [2024-11-07 18:57:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5711 states, 3442 states have (on average 1.847472399767577) internal successors, (6359), 5701 states have internal predecessors, (6359), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 3 states have return successors, (2005), 9 states have call predecessors, (2005), 2005 states have call successors, (2005) [2024-11-07 18:57:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5711 states to 5711 states and 10371 transitions. [2024-11-07 18:57:11,279 INFO L78 Accepts]: Start accepts. Automaton has 5711 states and 10371 transitions. Word has length 93 [2024-11-07 18:57:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:57:11,279 INFO L471 AbstractCegarLoop]: Abstraction has 5711 states and 10371 transitions. [2024-11-07 18:57:11,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.1875) internal successors, (147), 18 states have internal predecessors, (147), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 18:57:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 5711 states and 10371 transitions. [2024-11-07 18:57:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 18:57:11,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:57:11,280 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:57:11,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 18:57:11,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 18:57:11,482 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:57:11,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:57:11,483 INFO L85 PathProgramCache]: Analyzing trace with hash 390288452, now seen corresponding path program 1 times [2024-11-07 18:57:11,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:57:11,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242429134] [2024-11-07 18:57:11,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:11,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:57:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:11,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:57:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:11,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:57:11,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242429134] [2024-11-07 18:57:11,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242429134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:57:11,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:57:11,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 18:57:11,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363706559] [2024-11-07 18:57:11,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:57:11,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 18:57:11,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:57:11,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 18:57:11,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-07 18:57:11,889 INFO L87 Difference]: Start difference. First operand 5711 states and 10371 transitions. Second operand has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:57:17,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:57:17,964 INFO L93 Difference]: Finished difference Result 5730 states and 10396 transitions. [2024-11-07 18:57:17,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 18:57:17,964 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2024-11-07 18:57:17,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:57:17,984 INFO L225 Difference]: With dead ends: 5730 [2024-11-07 18:57:17,985 INFO L226 Difference]: Without dead ends: 5730 [2024-11-07 18:57:17,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-07 18:57:17,985 INFO L432 NwaCegarLoop]: 2616 mSDtfsCounter, 1907 mSDsluCounter, 14334 mSDsCounter, 0 mSdLazyCounter, 9544 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 16950 SdHoareTripleChecker+Invalid, 10057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 9544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-07 18:57:17,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 16950 Invalid, 10057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 9544 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-07 18:57:17,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5730 states. [2024-11-07 18:57:18,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5730 to 5726. [2024-11-07 18:57:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 3456 states have (on average 1.8449074074074074) internal successors, (6376), 5714 states have internal predecessors, (6376), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-07 18:57:18,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 10390 transitions. [2024-11-07 18:57:18,840 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 10390 transitions. Word has length 95 [2024-11-07 18:57:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:57:18,840 INFO L471 AbstractCegarLoop]: Abstraction has 5726 states and 10390 transitions. [2024-11-07 18:57:18,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 7.75) internal successors, (93), 13 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:57:18,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 10390 transitions. [2024-11-07 18:57:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-07 18:57:18,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:57:18,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:57:18,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 18:57:18,841 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:57:18,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:57:18,844 INFO L85 PathProgramCache]: Analyzing trace with hash 390288453, now seen corresponding path program 1 times [2024-11-07 18:57:18,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:57:18,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663749117] [2024-11-07 18:57:18,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:18,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:57:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:19,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:57:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:19,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:57:19,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663749117] [2024-11-07 18:57:19,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663749117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:57:19,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:57:19,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 18:57:19,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989248456] [2024-11-07 18:57:19,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:57:19,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 18:57:19,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:57:19,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 18:57:19,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 18:57:19,728 INFO L87 Difference]: Start difference. First operand 5726 states and 10390 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:57:26,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:57:26,466 INFO L93 Difference]: Finished difference Result 5729 states and 10394 transitions. [2024-11-07 18:57:26,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 18:57:26,467 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2024-11-07 18:57:26,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:57:26,478 INFO L225 Difference]: With dead ends: 5729 [2024-11-07 18:57:26,478 INFO L226 Difference]: Without dead ends: 5729 [2024-11-07 18:57:26,479 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-07 18:57:26,479 INFO L432 NwaCegarLoop]: 2620 mSDtfsCounter, 1911 mSDsluCounter, 13172 mSDsCounter, 0 mSdLazyCounter, 7194 mSolverCounterSat, 1016 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2415 SdHoareTripleChecker+Valid, 15792 SdHoareTripleChecker+Invalid, 8210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1016 IncrementalHoareTripleChecker+Valid, 7194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:57:26,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2415 Valid, 15792 Invalid, 8210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1016 Valid, 7194 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-07 18:57:26,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5729 states. [2024-11-07 18:57:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5729 to 5726. [2024-11-07 18:57:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5726 states, 3456 states have (on average 1.8443287037037037) internal successors, (6374), 5714 states have internal predecessors, (6374), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-07 18:57:26,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5726 states to 5726 states and 10388 transitions. [2024-11-07 18:57:26,881 INFO L78 Accepts]: Start accepts. Automaton has 5726 states and 10388 transitions. Word has length 95 [2024-11-07 18:57:26,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:57:26,882 INFO L471 AbstractCegarLoop]: Abstraction has 5726 states and 10388 transitions. [2024-11-07 18:57:26,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 11 states have internal predecessors, (93), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 18:57:26,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5726 states and 10388 transitions. [2024-11-07 18:57:26,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 18:57:26,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:57:26,883 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:57:26,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 18:57:26,883 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:57:26,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:57:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash -948693560, now seen corresponding path program 1 times [2024-11-07 18:57:26,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:57:26,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029421161] [2024-11-07 18:57:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:26,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:57:26,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:27,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:57:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:27,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:27,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:57:27,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029421161] [2024-11-07 18:57:27,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029421161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:57:27,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18735106] [2024-11-07 18:57:27,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:27,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 18:57:27,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:57:27,228 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 18:57:27,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 18:57:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:27,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-07 18:57:27,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:57:27,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 18:57:27,512 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-07 18:57:27,513 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-07 18:57:27,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-07 18:57:27,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-07 18:57:27,709 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-07 18:57:27,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-07 18:57:27,777 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-07 18:57:27,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2024-11-07 18:57:27,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-07 18:57:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:27,820 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:57:27,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18735106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:57:27,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:57:27,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2024-11-07 18:57:27,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880398699] [2024-11-07 18:57:27,932 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:57:27,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-07 18:57:27,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 18:57:27,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-07 18:57:27,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=488, Unknown=31, NotChecked=0, Total=600 [2024-11-07 18:57:27,933 INFO L87 Difference]: Start difference. First operand 5726 states and 10388 transitions. Second operand has 22 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 18:57:41,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:57:41,939 INFO L93 Difference]: Finished difference Result 5728 states and 10392 transitions. [2024-11-07 18:57:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 18:57:41,940 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 96 [2024-11-07 18:57:41,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:57:41,947 INFO L225 Difference]: With dead ends: 5728 [2024-11-07 18:57:41,947 INFO L226 Difference]: Without dead ends: 5728 [2024-11-07 18:57:41,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=671, Unknown=32, NotChecked=0, Total=812 [2024-11-07 18:57:41,948 INFO L432 NwaCegarLoop]: 2615 mSDtfsCounter, 1868 mSDsluCounter, 26010 mSDsCounter, 0 mSdLazyCounter, 18379 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2372 SdHoareTripleChecker+Valid, 28625 SdHoareTripleChecker+Invalid, 18894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 18379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-07 18:57:41,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2372 Valid, 28625 Invalid, 18894 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 18379 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2024-11-07 18:57:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5728 states. [2024-11-07 18:57:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5728 to 5725. [2024-11-07 18:57:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 3456 states have (on average 1.84375) internal successors, (6372), 5713 states have internal predecessors, (6372), 2007 states have call successors, (2007), 4 states have call predecessors, (2007), 4 states have return successors, (2007), 11 states have call predecessors, (2007), 2005 states have call successors, (2007) [2024-11-07 18:57:42,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 10386 transitions. [2024-11-07 18:57:42,298 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 10386 transitions. Word has length 96 [2024-11-07 18:57:42,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:57:42,298 INFO L471 AbstractCegarLoop]: Abstraction has 5725 states and 10386 transitions. [2024-11-07 18:57:42,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 8.052631578947368) internal successors, (153), 21 states have internal predecessors, (153), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 18:57:42,299 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 10386 transitions. [2024-11-07 18:57:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-07 18:57:42,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:57:42,299 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:57:42,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 18:57:42,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 18:57:42,504 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 421 more)] === [2024-11-07 18:57:42,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:57:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash -948693559, now seen corresponding path program 1 times [2024-11-07 18:57:42,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 18:57:42,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739997293] [2024-11-07 18:57:42,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:42,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 18:57:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:42,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-07 18:57:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:57:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:57:43,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 18:57:43,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739997293] [2024-11-07 18:57:43,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739997293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:57:43,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465010093] [2024-11-07 18:57:43,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:57:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 18:57:43,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:57:43,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 18:57:43,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process