./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_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_eq_c_str_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', '885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1'] 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_eq_c_str_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 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:43:17,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:43:17,669 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 11:43:17,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:43:17,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:43:17,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:43:17,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:43:17,697 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:43:17,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:43:17,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:43:17,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:43:17,698 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:43:17,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:43:17,699 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:43:17,699 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:43:17,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:43:17,699 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:43:17,699 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:43:17,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:43:17,700 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:43:17,700 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:43:17,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:43:17,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:43:17,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:43:17,700 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:43:17,700 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:43:17,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:43:17,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:43:17,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:43:17,701 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:43:17,701 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:43:17,701 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:43:17,701 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:43:17,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:43:17,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:43:17,702 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:43:17,702 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:43:17,702 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:43:17,702 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:43:17,702 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 -> 885bac69872c2b34c2b244d1618f4ab60115ba2f5fec2456cdf32ad6a7277fb1 [2024-11-07 11:43:17,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:43:17,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:43:17,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:43:17,980 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:43:17,980 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:43:17,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2024-11-07 11:43:19,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:43:19,828 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:43:19,829 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_byte_buf_eq_c_str_harness_negated.i [2024-11-07 11:43:19,880 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a83571bf/9001a5e6ebc04c3f9f0cf7f2e44d9333/FLAG6ec096b44 [2024-11-07 11:43:20,294 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5a83571bf/9001a5e6ebc04c3f9f0cf7f2e44d9333 [2024-11-07 11:43:20,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:43:20,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:43:20,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:43:20,299 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:43:20,303 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:43:20,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:43:20" (1/1) ... [2024-11-07 11:43:20,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a4d8513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:20, skipping insertion in model container [2024-11-07 11:43:20,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:43:20" (1/1) ... [2024-11-07 11:43:20,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:43:20,654 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_eq_c_str_harness_negated.i[4495,4508] [2024-11-07 11:43:20,664 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_eq_c_str_harness_negated.i[4555,4568] [2024-11-07 11:43:21,229 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,230 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,231 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,231 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,244 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,245 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,246 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,247 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,731 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,735 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:43:21,900 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:43:21,918 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_eq_c_str_harness_negated.i[4495,4508] [2024-11-07 11:43:21,918 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_eq_c_str_harness_negated.i[4555,4568] [2024-11-07 11:43:21,969 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,969 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,969 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,970 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,970 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,979 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,980 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,981 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:21,981 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:22,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8245] [2024-11-07 11:43:22,098 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:22,098 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-07 11:43:22,110 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8731-8742] [2024-11-07 11:43:22,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:43:22,359 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:43:22,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22 WrapperNode [2024-11-07 11:43:22,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:43:22,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:43:22,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:43:22,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:43:22,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,440 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,550 INFO L138 Inliner]: procedures = 680, calls = 2633, calls flagged for inlining = 64, calls inlined = 10, statements flattened = 902 [2024-11-07 11:43:22,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:43:22,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:43:22,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:43:22,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:43:22,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,568 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,642 INFO L175 MemorySlicer]: Split 556 memory accesses to 6 slices as follows [2, 257, 238, 40, 13, 6]. 46 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [2, 0, 6, 8, 5, 0]. The 493 writes are split as follows [0, 257, 232, 2, 0, 2]. [2024-11-07 11:43:22,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,643 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:43:22,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:43:22,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:43:22,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:43:22,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (1/1) ... [2024-11-07 11:43:22,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:43:22,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:43:22,782 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 11:43:22,789 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 11:43:22,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq_c_str [2024-11-07 11:43:22,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq_c_str [2024-11-07 11:43:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-11-07 11:43:22,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-11-07 11:43:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 11:43:22,810 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-07 11:43:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 11:43:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure save_byte_from_array [2024-11-07 11:43:22,811 INFO L138 BoogieDeclarations]: Found implementation of procedure save_byte_from_array [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 11:43:22,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:43:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-07 11:43:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-11-07 11:43:22,812 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 11:43:22,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 11:43:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 11:43:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 11:43:22,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 11:43:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 11:43:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 11:43:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 11:43:22,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-07 11:43:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-07 11:43:22,815 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:43:22,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 11:43:23,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:43:23,121 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:43:31,923 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-07 11:43:31,924 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:43:31,937 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:43:31,937 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 11:43:31,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:43:31 BoogieIcfgContainer [2024-11-07 11:43:31,937 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:43:31,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:43:31,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:43:31,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:43:31,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:43:20" (1/3) ... [2024-11-07 11:43:31,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219883a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:43:31, skipping insertion in model container [2024-11-07 11:43:31,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:43:22" (2/3) ... [2024-11-07 11:43:31,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@219883a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:43:31, skipping insertion in model container [2024-11-07 11:43:31,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:43:31" (3/3) ... [2024-11-07 11:43:31,949 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_eq_c_str_harness_negated.i [2024-11-07 11:43:31,962 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:43:31,962 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:43:32,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:43:32,026 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;@6cf04dcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:43:32,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 11:43:32,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-07 11:43:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-07 11:43:32,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:43:32,045 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 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 11:43:32,045 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:43:32,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:43:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1835431672, now seen corresponding path program 1 times [2024-11-07 11:43:32,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:43:32,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593728662] [2024-11-07 11:43:32,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:43:32,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:44:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 11:44:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-07 11:44:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-07 11:44:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:44:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 11:44:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 11:44:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 11:44:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:42,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 11:44:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:44:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-07 11:44:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 11:44:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-07 11:44:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-07 11:44:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 11:44:43,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 11:44:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 11:44:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 11:44:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 11:44:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-07 11:44:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 11:44:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:44:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-07 11:44:43,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:44:43,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593728662] [2024-11-07 11:44:43,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593728662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:44:43,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:44:43,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:44:43,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296253380] [2024-11-07 11:44:43,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:44:43,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:44:43,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:44:43,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:44:43,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:44:43,380 INFO L87 Difference]: Start difference. First operand has 140 states, 92 states have (on average 1.25) internal successors, (115), 94 states have internal predecessors, (115), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-07 11:44:47,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 11:44:50,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 11:44:50,366 INFO L93 Difference]: Finished difference Result 277 states and 398 transitions. [2024-11-07 11:44:50,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:44:50,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 125 [2024-11-07 11:44:50,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 11:44:50,376 INFO L225 Difference]: With dead ends: 277 [2024-11-07 11:44:50,376 INFO L226 Difference]: Without dead ends: 137 [2024-11-07 11:44:50,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 11:44:50,382 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 122 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 79 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-07 11:44:50,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 208 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2024-11-07 11:44:50,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-07 11:44:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-11-07 11:44:50,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 88 states have (on average 1.2159090909090908) internal successors, (107), 89 states have internal predecessors, (107), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-07 11:44:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2024-11-07 11:44:50,431 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 125 [2024-11-07 11:44:50,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 11:44:50,432 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2024-11-07 11:44:50,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-07 11:44:50,432 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2024-11-07 11:44:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-07 11:44:50,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 11:44:50,437 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 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 11:44:50,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:44:50,438 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 11:44:50,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:44:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2027802770, now seen corresponding path program 1 times [2024-11-07 11:44:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:44:50,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332494084] [2024-11-07 11:44:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:44:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms