./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1 --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 848e8aaf2da1050f60bda552a6204df78dfc0f4df819a9c6dc06d2a6a5e3d82f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:44:25,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:44:25,992 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:44:25,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:44:25,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:44:26,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:44:26,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:44:26,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:44:26,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:44:26,016 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:44:26,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:44:26,016 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:44:26,017 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:44:26,017 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:44:26,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:44:26,018 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:44:26,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:44:26,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:44:26,019 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:44:26,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:44:26,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:44:26,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:44:26,020 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1 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 -> 848e8aaf2da1050f60bda552a6204df78dfc0f4df819a9c6dc06d2a6a5e3d82f [2024-12-02 11:44:26,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:44:26,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:44:26,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:44:26,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:44:26,219 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:44:26,220 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2024-12-02 11:44:28,774 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/data/f97da664f/2233840519ff41b58b80f5a14e75a893/FLAG274532695 [2024-12-02 11:44:29,159 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:44:29,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i [2024-12-02 11:44:29,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/data/f97da664f/2233840519ff41b58b80f5a14e75a893/FLAG274532695 [2024-12-02 11:44:29,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/data/f97da664f/2233840519ff41b58b80f5a14e75a893 [2024-12-02 11:44:29,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:44:29,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:44:29,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:44:29,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:44:29,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:44:29,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:44:29" (1/1) ... [2024-12-02 11:44:29,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e2a972f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:29, skipping insertion in model container [2024-12-02 11:44:29,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:44:29" (1/1) ... [2024-12-02 11:44:29,432 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:44:29,622 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2024-12-02 11:44:29,628 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2024-12-02 11:44:30,321 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,322 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,322 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,323 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,324 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,338 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,339 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,340 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,341 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,948 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:30,949 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:44:31,055 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:44:31,068 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4497,4510] [2024-12-02 11:44:31,069 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/sv-benchmarks/c/aws-c-common/aws_byte_buf_write_be64_harness.i[4557,4570] [2024-12-02 11:44:31,110 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,110 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,110 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,111 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,111 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,117 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,117 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,118 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,118 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8291] [2024-12-02 11:44:31,235 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,235 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 11:44:31,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8777-8788] [2024-12-02 11:44:31,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:44:31,484 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:44:31,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31 WrapperNode [2024-12-02 11:44:31,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:44:31,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:44:31,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:44:31,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:44:31,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,602 INFO L138 Inliner]: procedures = 680, calls = 2618, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 871 [2024-12-02 11:44:31,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:44:31,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:44:31,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:44:31,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:44:31,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,617 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,674 INFO L175 MemorySlicer]: Split 564 memory accesses to 8 slices as follows [2, 257, 2, 238, 6, 4, 8, 47]. 46 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 1, 6, 0, 0, 5, 8]. The 497 writes are split as follows [0, 257, 0, 232, 2, 2, 1, 3]. [2024-12-02 11:44:31,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,707 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:44:31,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:44:31,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:44:31,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:44:31,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (1/1) ... [2024-12-02 11:44:31,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:44:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:44:31,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:44:31,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:44:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hton64 [2024-12-02 11:44:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hton64 [2024-12-02 11:44:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2024-12-02 11:44:31,784 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2024-12-02 11:44:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:44:31,784 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 11:44:31,785 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:44:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 11:44:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:44:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-12-02 11:44:31,786 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:44:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 11:44:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-12-02 11:44:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 11:44:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:44:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-12-02 11:44:31,788 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:44:31,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_write [2024-12-02 11:44:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_write [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 11:44:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 11:44:31,789 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:44:31,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_big_endian [2024-12-02 11:44:31,790 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_big_endian [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:44:31,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:44:32,049 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:44:32,050 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:44:39,576 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-12-02 11:44:39,576 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:44:39,586 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:44:39,586 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 11:44:39,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:44:39 BoogieIcfgContainer [2024-12-02 11:44:39,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:44:39,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:44:39,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:44:39,593 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:44:39,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:44:29" (1/3) ... [2024-12-02 11:44:39,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd46877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:44:39, skipping insertion in model container [2024-12-02 11:44:39,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:44:31" (2/3) ... [2024-12-02 11:44:39,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd46877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:44:39, skipping insertion in model container [2024-12-02 11:44:39,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:44:39" (3/3) ... [2024-12-02 11:44:39,595 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_byte_buf_write_be64_harness.i [2024-12-02 11:44:39,609 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:44:39,610 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_byte_buf_write_be64_harness.i that has 14 procedures, 151 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:44:39,661 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:44:39,672 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;@32bdf579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:44:39,672 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:44:39,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-12-02 11:44:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 11:44:39,685 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:39,685 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:44:39,686 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:39,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:39,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1920013511, now seen corresponding path program 1 times [2024-12-02 11:44:39,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:44:39,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144707952] [2024-12-02 11:44:39,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 11:46:04,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:04,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144707952] [2024-12-02 11:46:04,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144707952] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:46:04,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199353133] [2024-12-02 11:46:04,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:04,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:46:04,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:46:04,449 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:46:04,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:47:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:36,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:47:36,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:47:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-12-02 11:47:36,553 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:47:36,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199353133] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:36,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:47:36,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:47:36,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130121923] [2024-12-02 11:47:36,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:36,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:47:36,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:36,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:47:36,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:47:36,576 INFO L87 Difference]: Start difference. First operand has 151 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:47:36,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:36,609 INFO L93 Difference]: Finished difference Result 293 states and 408 transitions. [2024-12-02 11:47:36,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:47:36,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 101 [2024-12-02 11:47:36,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:36,618 INFO L225 Difference]: With dead ends: 293 [2024-12-02 11:47:36,618 INFO L226 Difference]: Without dead ends: 146 [2024-12-02 11:47:36,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:47:36,625 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:36,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:47:36,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-12-02 11:47:36,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-12-02 11:47:36,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 95 states have (on average 1.2105263157894737) internal successors, (115), 96 states have internal predecessors, (115), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 11:47:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 188 transitions. [2024-12-02 11:47:36,663 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 188 transitions. Word has length 101 [2024-12-02 11:47:36,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:36,664 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 188 transitions. [2024-12-02 11:47:36,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:47:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 188 transitions. [2024-12-02 11:47:36,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 11:47:36,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:36,668 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:47:36,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:47:36,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:47:36,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:36,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:36,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1267710013, now seen corresponding path program 1 times [2024-12-02 11:47:36,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:36,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230442980] [2024-12-02 11:47:36,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:36,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:49:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:07,727 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 11:49:07,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:49:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230442980] [2024-12-02 11:49:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230442980] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:49:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470471903] [2024-12-02 11:49:07,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:49:07,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:49:07,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:49:07,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:49:07,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:50:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:50:36,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 7758 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 11:50:36,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:50:36,732 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-12-02 11:50:36,733 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:50:36,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470471903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:50:36,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:50:36,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-12-02 11:50:36,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679533885] [2024-12-02 11:50:36,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:50:36,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:50:36,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:50:36,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:50:36,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:50:36,735 INFO L87 Difference]: Start difference. First operand 146 states and 188 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:50:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:50:38,011 INFO L93 Difference]: Finished difference Result 265 states and 350 transitions. [2024-12-02 11:50:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:50:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 101 [2024-12-02 11:50:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:50:38,015 INFO L225 Difference]: With dead ends: 265 [2024-12-02 11:50:38,015 INFO L226 Difference]: Without dead ends: 149 [2024-12-02 11:50:38,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-12-02 11:50:38,017 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 194 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:50:38,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 562 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:50:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-12-02 11:50:38,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-12-02 11:50:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 97 states have (on average 1.2061855670103092) internal successors, (117), 99 states have internal predecessors, (117), 37 states have call successors, (37), 13 states have call predecessors, (37), 14 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2024-12-02 11:50:38,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 194 transitions. [2024-12-02 11:50:38,035 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 194 transitions. Word has length 101 [2024-12-02 11:50:38,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:50:38,035 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 194 transitions. [2024-12-02 11:50:38,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:50:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 194 transitions. [2024-12-02 11:50:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:50:38,037 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:50:38,038 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:50:38,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 11:50:38,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:50:38,238 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:50:38,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:50:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1588791728, now seen corresponding path program 1 times [2024-12-02 11:50:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:50:38,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615836808] [2024-12-02 11:50:38,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:50:38,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:52:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:52:04,042 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-12-02 11:52:04,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:52:04,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615836808] [2024-12-02 11:52:04,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615836808] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:52:04,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941425838] [2024-12-02 11:52:04,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:52:04,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:52:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:52:04,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:52:04,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:53:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:53:31,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 7770 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:53:31,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:53:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 11:53:31,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:53:31,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941425838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:53:31,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:53:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-12-02 11:53:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874457894] [2024-12-02 11:53:31,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:53:31,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:53:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:53:31,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:53:31,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:31,338 INFO L87 Difference]: Start difference. First operand 149 states and 194 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:53:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:53:31,455 INFO L93 Difference]: Finished difference Result 270 states and 364 transitions. [2024-12-02 11:53:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:53:31,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 107 [2024-12-02 11:53:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:53:31,457 INFO L225 Difference]: With dead ends: 270 [2024-12-02 11:53:31,457 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 11:53:31,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:53:31,459 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:53:31,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 550 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:53:31,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 11:53:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-12-02 11:53:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 99 states have (on average 1.202020202020202) internal successors, (119), 101 states have internal predecessors, (119), 37 states have call successors, (37), 13 states have call predecessors, (37), 14 states have return successors, (40), 36 states have call predecessors, (40), 36 states have call successors, (40) [2024-12-02 11:53:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 196 transitions. [2024-12-02 11:53:31,469 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 196 transitions. Word has length 107 [2024-12-02 11:53:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:53:31,470 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 196 transitions. [2024-12-02 11:53:31,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:53:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 196 transitions. [2024-12-02 11:53:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 11:53:31,471 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:53:31,471 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:53:31,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 11:53:31,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-12-02 11:53:31,672 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:53:31,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:53:31,672 INFO L85 PathProgramCache]: Analyzing trace with hash 797717778, now seen corresponding path program 1 times [2024-12-02 11:53:31,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:53:31,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169854252] [2024-12-02 11:53:31,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:53:31,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:54:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:55:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 11:55:00,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:55:00,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169854252] [2024-12-02 11:55:00,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169854252] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:55:00,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704827557] [2024-12-02 11:55:00,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:55:00,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:55:00,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:55:00,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:55:00,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:56:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:56:28,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 7775 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 11:56:28,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:56:29,151 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 11:56:29,152 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:56:29,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704827557] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:56:29,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:56:29,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2024-12-02 11:56:29,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626844537] [2024-12-02 11:56:29,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:56:29,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:56:29,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:56:29,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:56:29,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-12-02 11:56:29,153 INFO L87 Difference]: Start difference. First operand 151 states and 196 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 11:56:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:56:30,342 INFO L93 Difference]: Finished difference Result 264 states and 345 transitions. [2024-12-02 11:56:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:56:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 107 [2024-12-02 11:56:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:56:30,343 INFO L225 Difference]: With dead ends: 264 [2024-12-02 11:56:30,344 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 11:56:30,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:56:30,344 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 195 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:56:30,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 565 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:56:30,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 11:56:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-12-02 11:56:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 99 states have (on average 1.202020202020202) internal successors, (119), 101 states have internal predecessors, (119), 37 states have call successors, (37), 13 states have call predecessors, (37), 14 states have return successors, (39), 36 states have call predecessors, (39), 36 states have call successors, (39) [2024-12-02 11:56:30,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 195 transitions. [2024-12-02 11:56:30,353 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 195 transitions. Word has length 107 [2024-12-02 11:56:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:56:30,353 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 195 transitions. [2024-12-02 11:56:30,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 11:56:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 195 transitions. [2024-12-02 11:56:30,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 11:56:30,354 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:56:30,354 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2024-12-02 11:56:30,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 11:56:30,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffe64964-a0b5-4b23-a367-b657662dbe9e/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:56:30,555 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:56:30,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:56:30,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1964377817, now seen corresponding path program 2 times [2024-12-02 11:56:30,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:56:30,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023245679] [2024-12-02 11:56:30,555 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 11:56:30,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:57:56,274 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 11:57:56,274 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:57:58,696 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 11:57:58,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:57:58,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023245679] [2024-12-02 11:57:58,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023245679] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:57:58,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:57:58,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:57:58,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925268361] [2024-12-02 11:57:58,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:57:58,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:57:58,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:57:58,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:57:58,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:57:58,698 INFO L87 Difference]: Start difference. First operand 151 states and 195 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 11:57:59,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:57:59,525 INFO L93 Difference]: Finished difference Result 244 states and 318 transitions. [2024-12-02 11:57:59,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:57:59,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 113 [2024-12-02 11:57:59,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:57:59,528 INFO L225 Difference]: With dead ends: 244 [2024-12-02 11:57:59,528 INFO L226 Difference]: Without dead ends: 148 [2024-12-02 11:57:59,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:57:59,529 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 43 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:57:59,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1105 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:57:59,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-12-02 11:57:59,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-12-02 11:57:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 97 states have (on average 1.1958762886597938) internal successors, (116), 98 states have internal predecessors, (116), 37 states have call successors, (37), 13 states have call predecessors, (37), 13 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-12-02 11:57:59,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 189 transitions. [2024-12-02 11:57:59,538 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 189 transitions. Word has length 113 [2024-12-02 11:57:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:57:59,538 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 189 transitions. [2024-12-02 11:57:59,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 5 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 11:57:59,538 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 189 transitions. [2024-12-02 11:57:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 11:57:59,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:57:59,539 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:57:59,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:57:59,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:57:59,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:57:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash 977071549, now seen corresponding path program 1 times [2024-12-02 11:57:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:57:59,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246214217] [2024-12-02 11:57:59,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:57:59,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:59:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat