./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml', '-i', '../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '9a515264e984c16c779a7ffef20874cef8e4933de9530e4e358b0857516d7443'] 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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9a515264e984c16c779a7ffef20874cef8e4933de9530e4e358b0857516d7443 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:42:47,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:42:47,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:42:47,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:42:47,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:42:47,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:42:47,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:42:47,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:42:47,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:42:47,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:42:47,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:42:47,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:42:47,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:42:47,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:42:47,989 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:42:47,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:42:47,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:42:47,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:42:47,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:42:47,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:42:47,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:42:47,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:42:47,992 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 ! call(reach_error())) ) 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a515264e984c16c779a7ffef20874cef8e4933de9530e4e358b0857516d7443 [2024-11-07 11:42:48,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:42:48,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:42:48,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:42:48,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:42:48,241 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:42:48,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i [2024-11-07 11:42:49,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:42:49,820 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:42:49,821 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i [2024-11-07 11:42:49,855 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e82c01cbe/cc3a60261c4142faa2feef3d3d1ed8e0/FLAG5fd33d0ee [2024-11-07 11:42:49,867 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e82c01cbe/cc3a60261c4142faa2feef3d3d1ed8e0 [2024-11-07 11:42:49,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:42:49,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:42:49,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:42:49,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:42:49,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:42:49,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:42:49" (1/1) ... [2024-11-07 11:42:49,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b1bfa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:49, skipping insertion in model container [2024-11-07 11:42:49,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:42:49" (1/1) ... [2024-11-07 11:42:49,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:42:50,142 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i[4495,4508] [2024-11-07 11:42:50,148 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i[4555,4568] [2024-11-07 11:42:50,587 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,588 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,588 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,589 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,589 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,598 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,598 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,599 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:50,600 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,112 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,113 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:42:51,254 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:42:51,270 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i[4495,4508] [2024-11-07 11:42:51,271 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_clean_up_harness_negated.i[4555,4568] [2024-11-07 11:42:51,340 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,341 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,341 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,341 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,345 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,355 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,356 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,361 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,361 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8061] [2024-11-07 11:42:51,535 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,535 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:42:51,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8547-8558] [2024-11-07 11:42:51,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:42:51,771 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:42:51,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51 WrapperNode [2024-11-07 11:42:51,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:42:51,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:42:51,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:42:51,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:42:51,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:51,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:51,968 INFO L138 Inliner]: procedures = 680, calls = 2500, calls flagged for inlining = 53, calls inlined = 4, statements flattened = 757 [2024-11-07 11:42:51,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:42:51,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:42:51,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:42:51,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:42:51,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:51,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:51,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,043 INFO L175 MemorySlicer]: Split 530 memory accesses to 5 slices as follows [2, 27, 257, 238, 6]. 48 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 4, 0, 6, 5]. The 495 writes are split as follows [0, 6, 257, 232, 0]. [2024-11-07 11:42:52,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,104 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:42:52,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:42:52,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:42:52,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:42:52,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (1/1) ... [2024-11-07 11:42:52,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:42:52,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:42:52,142 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 11:42:52,144 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 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_clean_up [2024-11-07 11:42:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_clean_up [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-07 11:42:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-07 11:42:52,161 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 11:42:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:42:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:42:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:42:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-07 11:42:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:42:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:42:52,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-07 11:42:52,163 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:42:52,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:42:52,394 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:42:52,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:42:59,698 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2024-11-07 11:42:59,698 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:42:59,705 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:42:59,706 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:42:59,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:59 BoogieIcfgContainer [2024-11-07 11:42:59,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:42:59,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:42:59,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:42:59,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:42:59,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:42:49" (1/3) ... [2024-11-07 11:42:59,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1096f0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:42:59, skipping insertion in model container [2024-11-07 11:42:59,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:42:51" (2/3) ... [2024-11-07 11:42:59,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1096f0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:42:59, skipping insertion in model container [2024-11-07 11:42:59,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:42:59" (3/3) ... [2024-11-07 11:42:59,718 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_clean_up_harness_negated.i [2024-11-07 11:42:59,733 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:42:59,734 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:42:59,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:42:59,771 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=LoopHeads, 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;@2e3cb647, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:42:59,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:42:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 59 states have internal predecessors, (72), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 11:42:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 11:42:59,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:42:59,779 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:42:59,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:42:59,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:42:59,783 INFO L85 PathProgramCache]: Analyzing trace with hash 2004625470, now seen corresponding path program 1 times [2024-11-07 11:42:59,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:42:59,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813860519] [2024-11-07 11:42:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:42:59,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:44:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:44:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-07 11:44:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:44:10,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-07 11:44:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 11:44:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 11:44:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:44:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:44:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-07 11:44:10,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:44:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813860519] [2024-11-07 11:44:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813860519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:44:10,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:44:10,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:44:10,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240242552] [2024-11-07 11:44:10,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:44:10,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:44:10,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:44:10,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:44:10,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:44:10,682 INFO L87 Difference]: Start difference. First operand has 84 states, 58 states have (on average 1.2413793103448276) internal successors, (72), 59 states have internal predecessors, (72), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 11:44:14,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:44:19,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:44:21,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:44:21,759 INFO L93 Difference]: Finished difference Result 158 states and 207 transitions. [2024-11-07 11:44:21,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:44:21,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2024-11-07 11:44:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:44:21,775 INFO L225 Difference]: With dead ends: 158 [2024-11-07 11:44:21,776 INFO L226 Difference]: Without dead ends: 85 [2024-11-07 11:44:21,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:44:21,788 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 98 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-07 11:44:21,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 64 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 106 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2024-11-07 11:44:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-07 11:44:21,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 79. [2024-11-07 11:44:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 55 states have internal predecessors, (66), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 11:44:21,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 97 transitions. [2024-11-07 11:44:21,830 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 97 transitions. Word has length 56 [2024-11-07 11:44:21,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:44:21,831 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 97 transitions. [2024-11-07 11:44:21,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-07 11:44:21,831 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 97 transitions. [2024-11-07 11:44:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 11:44:21,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:44:21,833 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:21,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:44:21,834 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:44:21,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:44:21,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1565352712, now seen corresponding path program 1 times [2024-11-07 11:44:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:44:21,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991648990] [2024-11-07 11:44:21,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:44:21,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms