./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_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_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/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_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/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_67e42464-e46b-47a9-96aa-f6b252b275b5/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 f854806972984dce66ab6a9732a626450e69b31616f902ad254c217d61a95da2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:36:33,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:36:33,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:36:33,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:36:33,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:36:33,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:36:33,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:36:33,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:36:33,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:36:33,795 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:36:33,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:36:33,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:36:33,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:36:33,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:36:33,795 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:36:33,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:36:33,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:36:33,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:33,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:33,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:36:33,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:36:33,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:36:33,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:36:33,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:36:33,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:36:33,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:36:33,798 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_67e42464-e46b-47a9-96aa-f6b252b275b5/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 -> f854806972984dce66ab6a9732a626450e69b31616f902ad254c217d61a95da2 [2024-12-02 12:36:34,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:36:34,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:36:34,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:36:34,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:36:34,029 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:36:34,031 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2024-12-02 12:36:36,680 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/data/ea208abde/2223c85da5d346d6aec5ec7f763c2287/FLAG21f42119a [2024-12-02 12:36:37,062 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:36:37,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2024-12-02 12:36:37,087 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/data/ea208abde/2223c85da5d346d6aec5ec7f763c2287/FLAG21f42119a [2024-12-02 12:36:37,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/data/ea208abde/2223c85da5d346d6aec5ec7f763c2287 [2024-12-02 12:36:37,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:36:37,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:36:37,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:36:37,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:36:37,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:36:37,242 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:36:37" (1/1) ... [2024-12-02 12:36:37,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fec891f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:37, skipping insertion in model container [2024-12-02 12:36:37,243 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:36:37" (1/1) ... [2024-12-02 12:36:37,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:36:37,545 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_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2024-12-02 12:36:37,551 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_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2024-12-02 12:36:38,531 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,531 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,532 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,533 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,534 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,548 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,549 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,551 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,551 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,553 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,554 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,555 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:38,555 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,478 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,479 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,497 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,498 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,503 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,503 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,514 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,515 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,515 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,515 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,516 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,547 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_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[229077,229090] [2024-12-02 12:36:39,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:36:39,572 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:36:39,583 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_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2024-12-02 12:36:39,583 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_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2024-12-02 12:36:39,615 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,615 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,616 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,616 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,617 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,623 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,624 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,624 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,625 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,625 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,626 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,626 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,626 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7576-7587] [2024-12-02 12:36:39,767 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,768 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,773 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,775 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,775 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,782 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,783 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,784 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,784 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,784 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,784 WARN L1675 CHandler]: Possible shadowing of function index [2024-12-02 12:36:39,801 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_67e42464-e46b-47a9-96aa-f6b252b275b5/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[229077,229090] [2024-12-02 12:36:39,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:36:39,996 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:36:39,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39 WrapperNode [2024-12-02 12:36:39,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:36:39,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:36:39,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:36:39,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:36:40,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,134 INFO L138 Inliner]: procedures = 764, calls = 2484, calls flagged for inlining = 71, calls inlined = 25, statements flattened = 1465 [2024-12-02 12:36:40,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:36:40,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:36:40,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:36:40,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:36:40,145 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,158 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,168 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-12-02 12:36:40,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,222 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:36:40,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:36:40,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:36:40,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:36:40,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (1/1) ... [2024-12-02 12:36:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:36:40,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:36:40,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:36:40,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:36:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2024-12-02 12:36:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2024-12-02 12:36:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2024-12-02 12:36:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-12-02 12:36:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2024-12-02 12:36:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2024-12-02 12:36:40,320 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2024-12-02 12:36:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-12-02 12:36:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 12:36:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2024-12-02 12:36:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2024-12-02 12:36:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:36:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2024-12-02 12:36:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2024-12-02 12:36:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 12:36:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:36:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2024-12-02 12:36:40,323 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2024-12-02 12:36:40,323 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 12:36:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-12-02 12:36:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 12:36:40,324 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2024-12-02 12:36:40,324 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2024-12-02 12:36:40,670 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:36:40,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:36:40,962 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:36:40,976 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume false; [2024-12-02 12:36:40,976 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !false; [2024-12-02 12:36:40,998 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:36:41,015 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2024-12-02 12:36:41,015 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2024-12-02 12:36:41,203 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:36:41,205 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-12-02 12:36:41,365 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume false; [2024-12-02 12:36:41,365 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !false; [2024-12-02 12:36:41,365 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##42: assume !false; [2024-12-02 12:36:41,365 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume false; [2024-12-02 12:36:47,803 INFO L? ?]: Removed 447 outVars from TransFormulas that were not future-live. [2024-12-02 12:36:47,803 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:36:47,822 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:36:47,822 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-12-02 12:36:47,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:47 BoogieIcfgContainer [2024-12-02 12:36:47,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:36:47,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:36:47,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:36:47,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:36:47,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:36:37" (1/3) ... [2024-12-02 12:36:47,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ddfe9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:36:47, skipping insertion in model container [2024-12-02 12:36:47,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:36:39" (2/3) ... [2024-12-02 12:36:47,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ddfe9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:36:47, skipping insertion in model container [2024-12-02 12:36:47,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:36:47" (3/3) ... [2024-12-02 12:36:47,834 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2024-12-02 12:36:47,852 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:36:47,854 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_put_harness.i that has 30 procedures, 410 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-12-02 12:36:47,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:36:47,938 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;@5747c1cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:36:47,939 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:36:47,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 410 states, 297 states have (on average 1.3097643097643097) internal successors, (389), 294 states have internal predecessors, (389), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 12:36:47,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 12:36:47,958 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:36:47,959 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:36:47,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:36:47,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:36:47,965 INFO L85 PathProgramCache]: Analyzing trace with hash 744838138, now seen corresponding path program 1 times [2024-12-02 12:36:47,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:36:47,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694712847] [2024-12-02 12:36:47,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:47,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:36:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:36:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-12-02 12:36:54,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:36:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694712847] [2024-12-02 12:36:54,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694712847] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:36:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088345881] [2024-12-02 12:36:54,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:36:54,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:36:54,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:36:54,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:36:54,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 12:37:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:00,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 4502 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:37:00,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:00,474 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-12-02 12:37:00,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:37:00,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088345881] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:00,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:37:00,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 12:37:00,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218192940] [2024-12-02 12:37:00,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:00,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:37:00,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:00,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:37:00,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:37:00,499 INFO L87 Difference]: Start difference. First operand has 410 states, 297 states have (on average 1.3097643097643097) internal successors, (389), 294 states have internal predecessors, (389), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:37:00,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:00,564 INFO L93 Difference]: Finished difference Result 814 states and 1170 transitions. [2024-12-02 12:37:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:37:00,565 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2024-12-02 12:37:00,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:00,590 INFO L225 Difference]: With dead ends: 814 [2024-12-02 12:37:00,590 INFO L226 Difference]: Without dead ends: 404 [2024-12-02 12:37:00,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 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 12:37:00,599 INFO L435 NwaCegarLoop]: 549 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, 549 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 12:37:00,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:37:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-12-02 12:37:00,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-12-02 12:37:00,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 288 states have (on average 1.2951388888888888) internal successors, (373), 289 states have internal predecessors, (373), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-12-02 12:37:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 544 transitions. [2024-12-02 12:37:00,663 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 544 transitions. Word has length 134 [2024-12-02 12:37:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:00,664 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 544 transitions. [2024-12-02 12:37:00,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:37:00,665 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 544 transitions. [2024-12-02 12:37:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-12-02 12:37:00,667 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:00,667 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:00,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 12:37:00,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 12:37:00,868 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:00,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:00,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1658936640, now seen corresponding path program 1 times [2024-12-02 12:37:00,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:00,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833666631] [2024-12-02 12:37:00,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:00,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 12:37:07,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:07,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833666631] [2024-12-02 12:37:07,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833666631] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:07,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:07,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:37:07,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986529332] [2024-12-02 12:37:07,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:07,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:37:07,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:07,761 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:37:07,761 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:37:07,762 INFO L87 Difference]: Start difference. First operand 404 states and 544 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:37:07,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:07,931 INFO L93 Difference]: Finished difference Result 804 states and 1086 transitions. [2024-12-02 12:37:07,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:37:07,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134 [2024-12-02 12:37:07,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:07,937 INFO L225 Difference]: With dead ends: 804 [2024-12-02 12:37:07,937 INFO L226 Difference]: Without dead ends: 409 [2024-12-02 12:37:07,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:37:07,939 INFO L435 NwaCegarLoop]: 541 mSDtfsCounter, 0 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2160 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:07,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2160 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:37:07,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-12-02 12:37:07,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2024-12-02 12:37:07,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 292 states have (on average 1.2910958904109588) internal successors, (377), 293 states have internal predecessors, (377), 86 states have call successors, (86), 29 states have call predecessors, (86), 30 states have return successors, (89), 86 states have call predecessors, (89), 85 states have call successors, (89) [2024-12-02 12:37:07,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 552 transitions. [2024-12-02 12:37:07,968 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 552 transitions. Word has length 134 [2024-12-02 12:37:07,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:07,968 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 552 transitions. [2024-12-02 12:37:07,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:37:07,969 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 552 transitions. [2024-12-02 12:37:07,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 12:37:07,971 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:07,971 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:07,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:37:07,972 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:07,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:07,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1941128681, now seen corresponding path program 1 times [2024-12-02 12:37:07,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:07,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092303352] [2024-12-02 12:37:07,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:07,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:16,374 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 12:37:16,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:16,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092303352] [2024-12-02 12:37:16,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092303352] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:16,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:16,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 12:37:16,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51619153] [2024-12-02 12:37:16,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:16,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 12:37:16,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:16,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 12:37:16,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:37:16,377 INFO L87 Difference]: Start difference. First operand 409 states and 552 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 12:37:20,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:37:24,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.35s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:37:29,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:37:33,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:37:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:38,245 INFO L93 Difference]: Finished difference Result 805 states and 1086 transitions. [2024-12-02 12:37:38,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:37:38,250 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140 [2024-12-02 12:37:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:38,253 INFO L225 Difference]: With dead ends: 805 [2024-12-02 12:37:38,253 INFO L226 Difference]: Without dead ends: 417 [2024-12-02 12:37:38,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-12-02 12:37:38,254 INFO L435 NwaCegarLoop]: 535 mSDtfsCounter, 11 mSDsluCounter, 3515 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:38,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4050 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 273 Invalid, 4 Unknown, 0 Unchecked, 21.4s Time] [2024-12-02 12:37:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-12-02 12:37:38,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 414. [2024-12-02 12:37:38,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 296 states have (on average 1.2905405405405406) internal successors, (382), 298 states have internal predecessors, (382), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2024-12-02 12:37:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 558 transitions. [2024-12-02 12:37:38,275 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 558 transitions. Word has length 140 [2024-12-02 12:37:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:38,275 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 558 transitions. [2024-12-02 12:37:38,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 9 states have internal predecessors, (66), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-12-02 12:37:38,276 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 558 transitions. [2024-12-02 12:37:38,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-12-02 12:37:38,278 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:38,278 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:38,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:37:38,278 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:38,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:38,279 INFO L85 PathProgramCache]: Analyzing trace with hash 30086123, now seen corresponding path program 1 times [2024-12-02 12:37:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524639813] [2024-12-02 12:37:38,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-12-02 12:37:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524639813] [2024-12-02 12:37:43,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524639813] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:37:43,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:37:43,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:37:43,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972881597] [2024-12-02 12:37:43,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:37:43,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:37:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:37:43,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:37:43,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:37:43,958 INFO L87 Difference]: Start difference. First operand 414 states and 558 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 12:37:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:37:44,309 INFO L93 Difference]: Finished difference Result 812 states and 1094 transitions. [2024-12-02 12:37:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:37:44,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140 [2024-12-02 12:37:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:37:44,313 INFO L225 Difference]: With dead ends: 812 [2024-12-02 12:37:44,313 INFO L226 Difference]: Without dead ends: 412 [2024-12-02 12:37:44,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:37:44,315 INFO L435 NwaCegarLoop]: 541 mSDtfsCounter, 83 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:37:44,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1503 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:37:44,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-12-02 12:37:44,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-12-02 12:37:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 294 states have (on average 1.2857142857142858) internal successors, (378), 296 states have internal predecessors, (378), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2024-12-02 12:37:44,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 554 transitions. [2024-12-02 12:37:44,332 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 554 transitions. Word has length 140 [2024-12-02 12:37:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:37:44,333 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 554 transitions. [2024-12-02 12:37:44,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 12:37:44,333 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 554 transitions. [2024-12-02 12:37:44,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 12:37:44,334 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:37:44,334 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:37:44,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:37:44,334 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:37:44,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:37:44,335 INFO L85 PathProgramCache]: Analyzing trace with hash -236223123, now seen corresponding path program 1 times [2024-12-02 12:37:44,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:37:44,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117716830] [2024-12-02 12:37:44,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:44,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:37:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:50,956 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-12-02 12:37:50,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:37:50,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117716830] [2024-12-02 12:37:50,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117716830] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:37:50,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390257643] [2024-12-02 12:37:50,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:37:50,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:37:50,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:37:50,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:37:50,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 12:37:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:37:56,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 4530 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 12:37:56,804 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:37:58,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:38:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-12-02 12:38:01,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:38:01,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390257643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:38:01,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 12:38:01,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [7] total 18 [2024-12-02 12:38:01,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727448287] [2024-12-02 12:38:01,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:38:01,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 12:38:01,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:38:01,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 12:38:01,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-12-02 12:38:01,953 INFO L87 Difference]: Start difference. First operand 412 states and 554 transitions. Second operand has 13 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 12:38:06,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:10,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:38:14,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:19,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:23,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:27,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:32,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:36,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:41,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:45,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:49,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 12:38:53,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:38:58,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:06,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:10,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:14,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:19,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:23,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:27,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:31,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:35,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:39,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:43,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:48,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:52,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:39:56,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:00,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:04,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:08,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:13,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:18,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:22,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:26,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:30,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:34,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:38,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:42,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:46,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:50,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:54,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:40:59,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:03,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:07,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:12,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:16,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:20,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:24,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:29,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:33,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:41:37,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-12-02 12:41:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:41:37,924 INFO L93 Difference]: Finished difference Result 843 states and 1119 transitions. [2024-12-02 12:41:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 12:41:37,925 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 146 [2024-12-02 12:41:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:41:37,928 INFO L225 Difference]: With dead ends: 843 [2024-12-02 12:41:37,928 INFO L226 Difference]: Without dead ends: 443 [2024-12-02 12:41:37,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=103, Invalid=709, Unknown=0, NotChecked=0, Total=812 [2024-12-02 12:41:37,930 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 576 mSDsluCounter, 3863 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 29 mSolverCounterUnsat, 50 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 210.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 4383 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 50 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 213.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:41:37,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 4383 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 637 Invalid, 50 Unknown, 0 Unchecked, 213.1s Time] [2024-12-02 12:41:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-12-02 12:41:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 440. [2024-12-02 12:41:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 316 states have (on average 1.2721518987341771) internal successors, (402), 317 states have internal predecessors, (402), 88 states have call successors, (88), 34 states have call predecessors, (88), 35 states have return successors, (91), 88 states have call predecessors, (91), 87 states have call successors, (91) [2024-12-02 12:41:37,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 581 transitions. [2024-12-02 12:41:37,950 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 581 transitions. Word has length 146 [2024-12-02 12:41:37,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:41:37,950 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 581 transitions. [2024-12-02 12:41:37,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 12:41:37,951 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 581 transitions. [2024-12-02 12:41:37,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 12:41:37,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:41:37,952 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:41:37,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 12:41:38,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:41:38,153 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:41:38,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:41:38,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1429379, now seen corresponding path program 1 times [2024-12-02 12:41:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:41:38,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613630670] [2024-12-02 12:41:38,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:41:38,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:41:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:41:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2024-12-02 12:41:45,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:41:45,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613630670] [2024-12-02 12:41:45,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613630670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:41:45,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:41:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:41:45,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757840702] [2024-12-02 12:41:45,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:41:45,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:41:45,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:41:45,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:41:45,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:41:45,318 INFO L87 Difference]: Start difference. First operand 440 states and 581 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 12:41:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:41:45,718 INFO L93 Difference]: Finished difference Result 446 states and 586 transitions. [2024-12-02 12:41:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:41:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2024-12-02 12:41:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:41:45,721 INFO L225 Difference]: With dead ends: 446 [2024-12-02 12:41:45,722 INFO L226 Difference]: Without dead ends: 444 [2024-12-02 12:41:45,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:41:45,723 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 4 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:41:45,723 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2143 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:41:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-12-02 12:41:45,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2024-12-02 12:41:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 319 states have (on average 1.2695924764890283) internal successors, (405), 320 states have internal predecessors, (405), 88 states have call successors, (88), 35 states have call predecessors, (88), 36 states have return successors, (91), 88 states have call predecessors, (91), 87 states have call successors, (91) [2024-12-02 12:41:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 584 transitions. [2024-12-02 12:41:45,749 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 584 transitions. Word has length 153 [2024-12-02 12:41:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:41:45,749 INFO L471 AbstractCegarLoop]: Abstraction has 444 states and 584 transitions. [2024-12-02 12:41:45,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-12-02 12:41:45,750 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 584 transitions. [2024-12-02 12:41:45,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 12:41:45,751 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:41:45,752 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:41:45,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:41:45,752 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:41:45,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:41:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 871364679, now seen corresponding path program 1 times [2024-12-02 12:41:45,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:41:45,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363864099] [2024-12-02 12:41:45,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:41:45,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:41:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:42:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-12-02 12:42:03,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:42:03,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363864099] [2024-12-02 12:42:03,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363864099] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:42:03,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:42:03,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-12-02 12:42:03,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441465257] [2024-12-02 12:42:03,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:42:03,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 12:42:03,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:42:03,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 12:42:03,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-12-02 12:42:03,276 INFO L87 Difference]: Start difference. First operand 444 states and 584 transitions. Second operand has 22 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 14 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (26), 13 states have call predecessors, (26), 13 states have call successors, (26) [2024-12-02 12:42:07,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:11,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:16,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:20,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:24,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:29,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:33,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:37,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:42,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:46,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:50,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:55,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:42:59,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:43:03,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:43:08,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:43:53,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:44:07,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:07,289 INFO L93 Difference]: Finished difference Result 825 states and 1097 transitions. [2024-12-02 12:44:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-12-02 12:44:07,290 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 14 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (26), 13 states have call predecessors, (26), 13 states have call successors, (26) Word has length 166 [2024-12-02 12:44:07,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:07,292 INFO L225 Difference]: With dead ends: 825 [2024-12-02 12:44:07,292 INFO L226 Difference]: Without dead ends: 459 [2024-12-02 12:44:07,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=107, Invalid=885, Unknown=0, NotChecked=0, Total=992 [2024-12-02 12:44:07,294 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 354 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 4138 mSolverCounterSat, 104 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 4257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 4138 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 120.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:07,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 2822 Invalid, 4257 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [104 Valid, 4138 Invalid, 15 Unknown, 0 Unchecked, 120.8s Time] [2024-12-02 12:44:07,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-12-02 12:44:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 446. [2024-12-02 12:44:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 320 states have (on average 1.26875) internal successors, (406), 322 states have internal predecessors, (406), 88 states have call successors, (88), 35 states have call predecessors, (88), 37 states have return successors, (97), 88 states have call predecessors, (97), 87 states have call successors, (97) [2024-12-02 12:44:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 591 transitions. [2024-12-02 12:44:07,326 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 591 transitions. Word has length 166 [2024-12-02 12:44:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:07,326 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 591 transitions. [2024-12-02 12:44:07,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 4.2105263157894735) internal successors, (80), 19 states have internal predecessors, (80), 14 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (26), 13 states have call predecessors, (26), 13 states have call successors, (26) [2024-12-02 12:44:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 591 transitions. [2024-12-02 12:44:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 12:44:07,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:07,329 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:07,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:44:07,329 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:07,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:07,330 INFO L85 PathProgramCache]: Analyzing trace with hash 882232623, now seen corresponding path program 1 times [2024-12-02 12:44:07,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:07,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50666135] [2024-12-02 12:44:07,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:07,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:13,933 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-02 12:44:13,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:13,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50666135] [2024-12-02 12:44:13,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50666135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:13,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:13,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:44:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967831154] [2024-12-02 12:44:13,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:13,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:44:13,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:13,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:44:13,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:13,934 INFO L87 Difference]: Start difference. First operand 446 states and 591 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:14,452 INFO L93 Difference]: Finished difference Result 454 states and 599 transitions. [2024-12-02 12:44:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:44:14,452 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2024-12-02 12:44:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:14,456 INFO L225 Difference]: With dead ends: 454 [2024-12-02 12:44:14,456 INFO L226 Difference]: Without dead ends: 452 [2024-12-02 12:44:14,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:44:14,458 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 3 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:14,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2148 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:44:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-12-02 12:44:14,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2024-12-02 12:44:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 323 states have (on average 1.2662538699690402) internal successors, (409), 326 states have internal predecessors, (409), 89 states have call successors, (89), 36 states have call predecessors, (89), 38 states have return successors, (98), 88 states have call predecessors, (98), 88 states have call successors, (98) [2024-12-02 12:44:14,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 596 transitions. [2024-12-02 12:44:14,488 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 596 transitions. Word has length 173 [2024-12-02 12:44:14,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:14,489 INFO L471 AbstractCegarLoop]: Abstraction has 451 states and 596 transitions. [2024-12-02 12:44:14,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:14,489 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 596 transitions. [2024-12-02 12:44:14,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 12:44:14,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:14,492 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:14,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:44:14,492 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:14,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:14,493 INFO L85 PathProgramCache]: Analyzing trace with hash 884079665, now seen corresponding path program 1 times [2024-12-02 12:44:14,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:14,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004984009] [2024-12-02 12:44:14,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:14,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-02 12:44:20,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:20,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004984009] [2024-12-02 12:44:20,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004984009] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:20,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:20,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:44:20,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802233282] [2024-12-02 12:44:20,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:20,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:44:20,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:20,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:44:20,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:20,605 INFO L87 Difference]: Start difference. First operand 451 states and 596 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:21,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:21,169 INFO L93 Difference]: Finished difference Result 457 states and 601 transitions. [2024-12-02 12:44:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:44:21,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2024-12-02 12:44:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:21,172 INFO L225 Difference]: With dead ends: 457 [2024-12-02 12:44:21,172 INFO L226 Difference]: Without dead ends: 455 [2024-12-02 12:44:21,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 12:44:21,173 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 3 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2147 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:21,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2147 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:44:21,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-12-02 12:44:21,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 450. [2024-12-02 12:44:21,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 323 states have (on average 1.2662538699690402) internal successors, (409), 325 states have internal predecessors, (409), 88 states have call successors, (88), 36 states have call predecessors, (88), 38 states have return successors, (97), 88 states have call predecessors, (97), 87 states have call successors, (97) [2024-12-02 12:44:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 594 transitions. [2024-12-02 12:44:21,194 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 594 transitions. Word has length 173 [2024-12-02 12:44:21,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:21,195 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 594 transitions. [2024-12-02 12:44:21,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:21,195 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 594 transitions. [2024-12-02 12:44:21,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 12:44:21,197 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:21,197 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:21,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:44:21,198 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:21,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:21,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1923177174, now seen corresponding path program 1 times [2024-12-02 12:44:21,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:21,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492681023] [2024-12-02 12:44:21,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:21,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-02 12:44:26,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:26,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492681023] [2024-12-02 12:44:26,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492681023] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:26,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:26,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:44:26,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195682290] [2024-12-02 12:44:26,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:26,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:44:26,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:26,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:44:26,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:26,367 INFO L87 Difference]: Start difference. First operand 450 states and 594 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:44:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:26,979 INFO L93 Difference]: Finished difference Result 841 states and 1131 transitions. [2024-12-02 12:44:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 12:44:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 181 [2024-12-02 12:44:26,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:26,983 INFO L225 Difference]: With dead ends: 841 [2024-12-02 12:44:26,983 INFO L226 Difference]: Without dead ends: 493 [2024-12-02 12:44:26,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:44:26,984 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 166 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:26,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 2104 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:44:26,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-12-02 12:44:27,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 454. [2024-12-02 12:44:27,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 326 states have (on average 1.2638036809815951) internal successors, (412), 328 states have internal predecessors, (412), 89 states have call successors, (89), 36 states have call predecessors, (89), 38 states have return successors, (98), 89 states have call predecessors, (98), 88 states have call successors, (98) [2024-12-02 12:44:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 599 transitions. [2024-12-02 12:44:27,011 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 599 transitions. Word has length 181 [2024-12-02 12:44:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:27,012 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 599 transitions. [2024-12-02 12:44:27,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:44:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 599 transitions. [2024-12-02 12:44:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-02 12:44:27,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:27,014 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:27,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:44:27,014 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:27,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:27,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1907658456, now seen corresponding path program 1 times [2024-12-02 12:44:27,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:27,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587056905] [2024-12-02 12:44:27,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:27,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-02 12:44:32,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:32,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587056905] [2024-12-02 12:44:32,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587056905] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:32,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:32,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:44:32,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652319045] [2024-12-02 12:44:32,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:32,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:44:32,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:32,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:44:32,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:32,192 INFO L87 Difference]: Start difference. First operand 454 states and 599 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:32,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:32,479 INFO L93 Difference]: Finished difference Result 520 states and 682 transitions. [2024-12-02 12:44:32,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:44:32,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 181 [2024-12-02 12:44:32,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:32,482 INFO L225 Difference]: With dead ends: 520 [2024-12-02 12:44:32,482 INFO L226 Difference]: Without dead ends: 458 [2024-12-02 12:44:32,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:32,483 INFO L435 NwaCegarLoop]: 541 mSDtfsCounter, 0 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:32,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2153 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:44:32,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-12-02 12:44:32,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2024-12-02 12:44:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 329 states have (on average 1.2613981762917934) internal successors, (415), 331 states have internal predecessors, (415), 89 states have call successors, (89), 36 states have call predecessors, (89), 39 states have return successors, (99), 90 states have call predecessors, (99), 88 states have call successors, (99) [2024-12-02 12:44:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 603 transitions. [2024-12-02 12:44:32,511 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 603 transitions. Word has length 181 [2024-12-02 12:44:32,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:32,512 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 603 transitions. [2024-12-02 12:44:32,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:32,512 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 603 transitions. [2024-12-02 12:44:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-12-02 12:44:32,513 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:32,514 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:32,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:44:32,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:32,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:32,514 INFO L85 PathProgramCache]: Analyzing trace with hash 2101051840, now seen corresponding path program 1 times [2024-12-02 12:44:32,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:32,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651607662] [2024-12-02 12:44:32,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:32,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:37,217 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-02 12:44:37,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:37,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651607662] [2024-12-02 12:44:37,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651607662] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:37,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:37,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:44:37,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184583316] [2024-12-02 12:44:37,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:37,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:44:37,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:37,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:44:37,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:44:37,219 INFO L87 Difference]: Start difference. First operand 458 states and 603 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:37,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:37,313 INFO L93 Difference]: Finished difference Result 724 states and 958 transitions. [2024-12-02 12:44:37,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:44:37,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 183 [2024-12-02 12:44:37,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:37,316 INFO L225 Difference]: With dead ends: 724 [2024-12-02 12:44:37,316 INFO L226 Difference]: Without dead ends: 459 [2024-12-02 12:44:37,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:44:37,317 INFO L435 NwaCegarLoop]: 542 mSDtfsCounter, 0 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:37,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1079 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:44:37,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-12-02 12:44:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-12-02 12:44:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 330 states have (on average 1.2606060606060605) internal successors, (416), 332 states have internal predecessors, (416), 89 states have call successors, (89), 36 states have call predecessors, (89), 39 states have return successors, (99), 90 states have call predecessors, (99), 88 states have call successors, (99) [2024-12-02 12:44:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 604 transitions. [2024-12-02 12:44:37,336 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 604 transitions. Word has length 183 [2024-12-02 12:44:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:37,336 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 604 transitions. [2024-12-02 12:44:37,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2024-12-02 12:44:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 604 transitions. [2024-12-02 12:44:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-12-02 12:44:37,337 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:37,337 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:37,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:44:37,337 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:37,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash 666860591, now seen corresponding path program 1 times [2024-12-02 12:44:37,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:37,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719367452] [2024-12-02 12:44:37,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:37,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:41,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:45,637 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-12-02 12:44:45,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:45,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719367452] [2024-12-02 12:44:45,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719367452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:45,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:45,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 12:44:45,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692276005] [2024-12-02 12:44:45,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:45,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:44:45,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:45,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:44:45,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 12:44:45,639 INFO L87 Difference]: Start difference. First operand 459 states and 604 transitions. Second operand has 12 states, 12 states have (on average 7.5) internal successors, (90), 9 states have internal predecessors, (90), 6 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-12-02 12:44:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:48,626 INFO L93 Difference]: Finished difference Result 892 states and 1201 transitions. [2024-12-02 12:44:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 12:44:48,627 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 9 states have internal predecessors, (90), 6 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 196 [2024-12-02 12:44:48,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:48,630 INFO L225 Difference]: With dead ends: 892 [2024-12-02 12:44:48,630 INFO L226 Difference]: Without dead ends: 555 [2024-12-02 12:44:48,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-12-02 12:44:48,631 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 132 mSDsluCounter, 5512 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:48,632 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 6067 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-12-02 12:44:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-12-02 12:44:48,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 520. [2024-12-02 12:44:48,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 378 states have (on average 1.2751322751322751) internal successors, (482), 381 states have internal predecessors, (482), 97 states have call successors, (97), 39 states have call predecessors, (97), 44 states have return successors, (112), 99 states have call predecessors, (112), 96 states have call successors, (112) [2024-12-02 12:44:48,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 691 transitions. [2024-12-02 12:44:48,652 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 691 transitions. Word has length 196 [2024-12-02 12:44:48,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:48,652 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 691 transitions. [2024-12-02 12:44:48,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.5) internal successors, (90), 9 states have internal predecessors, (90), 6 states have call successors, (32), 5 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2024-12-02 12:44:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 691 transitions. [2024-12-02 12:44:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-12-02 12:44:48,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:48,654 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:48,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:44:48,654 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:48,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash 960603128, now seen corresponding path program 1 times [2024-12-02 12:44:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:48,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423746217] [2024-12-02 12:44:48,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:53,725 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2024-12-02 12:44:53,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:53,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423746217] [2024-12-02 12:44:53,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423746217] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:53,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:53,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:44:53,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950585382] [2024-12-02 12:44:53,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:53,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:44:53,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:53,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:44:53,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:53,726 INFO L87 Difference]: Start difference. First operand 520 states and 691 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2024-12-02 12:44:53,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:53,957 INFO L93 Difference]: Finished difference Result 585 states and 773 transitions. [2024-12-02 12:44:53,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:44:53,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 191 [2024-12-02 12:44:53,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:53,960 INFO L225 Difference]: With dead ends: 585 [2024-12-02 12:44:53,960 INFO L226 Difference]: Without dead ends: 525 [2024-12-02 12:44:53,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:53,961 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 0 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:53,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2154 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 12:44:53,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-12-02 12:44:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2024-12-02 12:44:53,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 382 states have (on average 1.2722513089005236) internal successors, (486), 385 states have internal predecessors, (486), 97 states have call successors, (97), 39 states have call predecessors, (97), 45 states have return successors, (114), 100 states have call predecessors, (114), 96 states have call successors, (114) [2024-12-02 12:44:53,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 697 transitions. [2024-12-02 12:44:53,981 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 697 transitions. Word has length 191 [2024-12-02 12:44:53,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:53,981 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 697 transitions. [2024-12-02 12:44:53,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2024-12-02 12:44:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 697 transitions. [2024-12-02 12:44:53,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 12:44:53,983 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:53,984 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:53,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:44:53,984 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 788771650, now seen corresponding path program 1 times [2024-12-02 12:44:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:53,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433471963] [2024-12-02 12:44:53,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:53,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:44:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:44:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-12-02 12:44:59,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:44:59,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433471963] [2024-12-02 12:44:59,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433471963] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:44:59,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:44:59,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:44:59,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608297032] [2024-12-02 12:44:59,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:44:59,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:44:59,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:44:59,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:44:59,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:44:59,231 INFO L87 Difference]: Start difference. First operand 525 states and 697 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 12:44:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:44:59,791 INFO L93 Difference]: Finished difference Result 983 states and 1328 transitions. [2024-12-02 12:44:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:44:59,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 197 [2024-12-02 12:44:59,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:44:59,796 INFO L225 Difference]: With dead ends: 983 [2024-12-02 12:44:59,796 INFO L226 Difference]: Without dead ends: 570 [2024-12-02 12:44:59,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:44:59,798 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 107 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:44:59,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1590 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 12:44:59,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-12-02 12:44:59,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 519. [2024-12-02 12:44:59,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 377 states have (on average 1.2705570291777188) internal successors, (479), 381 states have internal predecessors, (479), 96 states have call successors, (96), 39 states have call predecessors, (96), 45 states have return successors, (112), 98 states have call predecessors, (112), 95 states have call successors, (112) [2024-12-02 12:44:59,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 687 transitions. [2024-12-02 12:44:59,817 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 687 transitions. Word has length 197 [2024-12-02 12:44:59,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:44:59,817 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 687 transitions. [2024-12-02 12:44:59,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 12:44:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 687 transitions. [2024-12-02 12:44:59,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-12-02 12:44:59,818 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:44:59,818 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:44:59,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:44:59,818 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:44:59,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:44:59,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1445592190, now seen corresponding path program 1 times [2024-12-02 12:44:59,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:44:59,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156596310] [2024-12-02 12:44:59,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:44:59,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:45:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:45:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 12:45:08,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:45:08,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156596310] [2024-12-02 12:45:08,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156596310] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:45:08,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041585515] [2024-12-02 12:45:08,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:45:08,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:45:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:45:08,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:45:08,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 12:45:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:45:14,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 4858 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-12-02 12:45:14,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:45:19,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:45:19,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-12-02 12:45:19,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 12:45:19,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2024-12-02 12:45:19,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:45:24,279 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:45:24,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2024-12-02 12:45:24,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:45:24,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 41 [2024-12-02 12:45:29,123 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_16| Int) (|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_16| Int)) (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_16|) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_16|)) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_16|)) (exists ((|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_17| Int) (|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_17| Int)) (<= (+ (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_17|) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_17|) 2) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_17|))) is different from true [2024-12-02 12:45:35,329 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 46 proven. 33 refuted. 12 times theorem prover too weak. 77 trivial. 7 not checked. [2024-12-02 12:45:35,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:45:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-12-02 12:45:47,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041585515] provided 1 perfect and 1 imperfect interpolant sequences [2024-12-02 12:45:47,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:45:47,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 25] total 37 [2024-12-02 12:45:47,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58760768] [2024-12-02 12:45:47,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:45:47,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 12:45:47,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:45:47,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 12:45:47,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1159, Unknown=1, NotChecked=68, Total=1332 [2024-12-02 12:45:47,603 INFO L87 Difference]: Start difference. First operand 519 states and 687 transitions. Second operand has 12 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-12-02 12:45:51,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:45:51,073 INFO L93 Difference]: Finished difference Result 972 states and 1301 transitions. [2024-12-02 12:45:51,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:45:51,074 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 197 [2024-12-02 12:45:51,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:45:51,077 INFO L225 Difference]: With dead ends: 972 [2024-12-02 12:45:51,077 INFO L226 Difference]: Without dead ends: 531 [2024-12-02 12:45:51,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=104, Invalid=1159, Unknown=1, NotChecked=68, Total=1332 [2024-12-02 12:45:51,079 INFO L435 NwaCegarLoop]: 516 mSDtfsCounter, 0 mSDsluCounter, 4080 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4596 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:45:51,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4596 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-12-02 12:45:51,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-12-02 12:45:51,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 523. [2024-12-02 12:45:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 380 states have (on average 1.268421052631579) internal successors, (482), 384 states have internal predecessors, (482), 96 states have call successors, (96), 39 states have call predecessors, (96), 46 states have return successors, (114), 99 states have call predecessors, (114), 95 states have call successors, (114) [2024-12-02 12:45:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 692 transitions. [2024-12-02 12:45:51,102 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 692 transitions. Word has length 197 [2024-12-02 12:45:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:45:51,102 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 692 transitions. [2024-12-02 12:45:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.3) internal successors, (103), 9 states have internal predecessors, (103), 4 states have call successors, (31), 2 states have call predecessors, (31), 5 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-12-02 12:45:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 692 transitions. [2024-12-02 12:45:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-12-02 12:45:51,104 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:45:51,104 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:45:51,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 12:45:51,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 12:45:51,304 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:45:51,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:45:51,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1687089091, now seen corresponding path program 1 times [2024-12-02 12:45:51,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:45:51,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130727540] [2024-12-02 12:45:51,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:45:51,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:45:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:46:00,166 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 3 proven. 27 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-12-02 12:46:00,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:46:00,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130727540] [2024-12-02 12:46:00,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130727540] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:46:00,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253187629] [2024-12-02 12:46:00,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:46:00,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:46:00,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:46:00,168 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:46:00,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 12:46:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:46:06,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 4862 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-12-02 12:46:06,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:46:10,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2024-12-02 12:46:10,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-02 12:46:10,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2024-12-02 12:46:10,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:46:10,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:46:19,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:46:19,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2024-12-02 12:46:19,795 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-02 12:46:19,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 33 [2024-12-02 12:46:24,834 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_27| Int)) (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_27|) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_27|)) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_27|)) (exists ((|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_26| Int) (|v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_26| Int)) (<= (+ (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_26|) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset_BEFORE_CALL_26|) 2) |v_ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base_BEFORE_CALL_26|))) is different from true [2024-12-02 12:46:34,307 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 120 proven. 13 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 12:46:34,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 12:46:48,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253187629] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:46:48,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 12:46:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 24] total 28 [2024-12-02 12:46:48,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723307145] [2024-12-02 12:46:48,397 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 12:46:48,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-12-02 12:46:48,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:46:48,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-12-02 12:46:48,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1305, Unknown=3, NotChecked=72, Total=1482 [2024-12-02 12:46:48,398 INFO L87 Difference]: Start difference. First operand 523 states and 692 transitions. Second operand has 28 states, 25 states have (on average 7.04) internal successors, (176), 23 states have internal predecessors, (176), 9 states have call successors, (56), 4 states have call predecessors, (56), 11 states have return successors, (55), 9 states have call predecessors, (55), 9 states have call successors, (55) [2024-12-02 12:46:52,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:46:56,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:01,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:05,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:09,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:14,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:18,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:22,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:27,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:31,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:36,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:47:40,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:44,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:49,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:53,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:47:58,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:48:02,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:48:06,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:48:21,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:48:25,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:48:35,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:48:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:48:38,360 INFO L93 Difference]: Finished difference Result 1043 states and 1377 transitions. [2024-12-02 12:48:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 12:48:38,361 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 7.04) internal successors, (176), 23 states have internal predecessors, (176), 9 states have call successors, (56), 4 states have call predecessors, (56), 11 states have return successors, (55), 9 states have call predecessors, (55), 9 states have call successors, (55) Word has length 199 [2024-12-02 12:48:38,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:48:38,365 INFO L225 Difference]: With dead ends: 1043 [2024-12-02 12:48:38,365 INFO L226 Difference]: Without dead ends: 526 [2024-12-02 12:48:38,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 290 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=116, Invalid=1525, Unknown=3, NotChecked=78, Total=1722 [2024-12-02 12:48:38,368 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 4 mSDsluCounter, 9370 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 0 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9883 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 547 IncrementalHoareTripleChecker+Unchecked, 108.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:48:38,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 9883 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1467 Invalid, 19 Unknown, 547 Unchecked, 108.6s Time] [2024-12-02 12:48:38,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-12-02 12:48:38,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 523. [2024-12-02 12:48:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 380 states have (on average 1.268421052631579) internal successors, (482), 384 states have internal predecessors, (482), 96 states have call successors, (96), 39 states have call predecessors, (96), 46 states have return successors, (113), 99 states have call predecessors, (113), 95 states have call successors, (113) [2024-12-02 12:48:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 691 transitions. [2024-12-02 12:48:38,404 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 691 transitions. Word has length 199 [2024-12-02 12:48:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:48:38,405 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 691 transitions. [2024-12-02 12:48:38,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 7.04) internal successors, (176), 23 states have internal predecessors, (176), 9 states have call successors, (56), 4 states have call predecessors, (56), 11 states have return successors, (55), 9 states have call predecessors, (55), 9 states have call successors, (55) [2024-12-02 12:48:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 691 transitions. [2024-12-02 12:48:38,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 12:48:38,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:48:38,407 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:48:38,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 12:48:38,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 12:48:38,607 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:48:38,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:48:38,608 INFO L85 PathProgramCache]: Analyzing trace with hash 497572958, now seen corresponding path program 2 times [2024-12-02 12:48:38,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:48:38,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123900910] [2024-12-02 12:48:38,608 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:48:38,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:48:47,492 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 12:48:47,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 12:48:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-12-02 12:48:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:48:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123900910] [2024-12-02 12:48:48,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123900910] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 12:48:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212508316] [2024-12-02 12:48:48,949 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 12:48:48,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 12:48:48,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:48:48,951 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 12:48:48,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67e42464-e46b-47a9-96aa-f6b252b275b5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process