./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB --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 32bit --witnessprinter.graph.data.programhash 60035180ad93ee19bf4d992ab5c22fc9a9b898dcfe886a7e5b520105473a6903 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:20:40,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:20:40,612 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:20:40,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:20:40,618 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:20:40,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:20:40,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:20:40,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:20:40,645 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:20:40,645 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:20:40,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:20:40,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:20:40,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:20:40,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:20:40,646 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:20:40,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:20:40,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:20:40,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:20:40,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:20:40,647 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:20:40,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:20:40,648 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:20:40,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:20:40,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:20:40,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:20:40,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:40,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:20:40,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:40,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:20:40,649 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:20:40,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:20:40,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:20:40,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:20:40,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:20:40,650 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:20:40,650 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60035180ad93ee19bf4d992ab5c22fc9a9b898dcfe886a7e5b520105473a6903 [2024-11-28 03:20:40,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:20:40,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:20:40,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:20:40,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:20:40,973 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:20:40,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2024-11-28 03:20:44,132 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/data/db92ce9e9/c1981624e21f45559122cd0f40ce4085/FLAG2179d1fb4 [2024-11-28 03:20:44,481 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:20:44,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2024-11-28 03:20:44,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/data/db92ce9e9/c1981624e21f45559122cd0f40ce4085/FLAG2179d1fb4 [2024-11-28 03:20:44,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/data/db92ce9e9/c1981624e21f45559122cd0f40ce4085 [2024-11-28 03:20:44,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:20:44,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:20:44,537 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:44,537 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:20:44,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:20:44,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209cb4ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44, skipping insertion in model container [2024-11-28 03:20:44,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:20:44,811 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1215,1228] [2024-11-28 03:20:44,825 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1969,1982] [2024-11-28 03:20:44,829 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[2490,2503] [2024-11-28 03:20:44,834 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[3282,3295] [2024-11-28 03:20:44,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:44,846 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:20:44,872 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1215,1228] [2024-11-28 03:20:44,880 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1969,1982] [2024-11-28 03:20:44,890 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[2490,2503] [2024-11-28 03:20:44,894 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_85ba2158-224c-40ac-9d58-9a2453aa1fd4/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[3282,3295] [2024-11-28 03:20:44,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:20:44,913 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:20:44,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44 WrapperNode [2024-11-28 03:20:44,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:20:44,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:44,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:20:44,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:20:44,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,955 INFO L138 Inliner]: procedures = 15, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 168 [2024-11-28 03:20:44,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:20:44,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:20:44,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:20:44,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:20:44,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,969 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,984 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-28 03:20:44,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,993 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:44,999 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:45,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:45,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:20:45,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:20:45,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:20:45,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:20:45,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (1/1) ... [2024-11-28 03:20:45,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:20:45,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:45,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:20:45,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:20:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:20:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:20:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:20:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:20:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:20:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:20:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:20:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:20:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:20:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:20:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:20:45,190 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:20:45,192 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:20:45,560 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-28 03:20:45,560 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:20:45,577 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:20:45,578 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:20:45,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:45 BoogieIcfgContainer [2024-11-28 03:20:45,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:20:45,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:20:45,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:20:45,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:20:45,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:20:44" (1/3) ... [2024-11-28 03:20:45,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d894c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:45, skipping insertion in model container [2024-11-28 03:20:45,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:44" (2/3) ... [2024-11-28 03:20:45,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d894c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:20:45, skipping insertion in model container [2024-11-28 03:20:45,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:45" (3/3) ... [2024-11-28 03:20:45,595 INFO L128 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+lhb-reducer.c [2024-11-28 03:20:45,614 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:20:45,618 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG simple_array_index_value_4.i.v+lhb-reducer.c that has 1 procedures, 40 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-28 03:20:45,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:20:45,729 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;@563f1c5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:20:45,730 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-28 03:20:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 39 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 03:20:45,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:45,744 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:45,745 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:45,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1367472767, now seen corresponding path program 1 times [2024-11-28 03:20:45,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:45,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510391643] [2024-11-28 03:20:45,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:45,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510391643] [2024-11-28 03:20:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510391643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:46,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:46,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:46,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490224578] [2024-11-28 03:20:46,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:46,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:46,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:46,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:46,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:46,212 INFO L87 Difference]: Start difference. First operand has 40 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 39 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:46,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:46,272 INFO L93 Difference]: Finished difference Result 78 states and 114 transitions. [2024-11-28 03:20:46,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:46,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-28 03:20:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:46,285 INFO L225 Difference]: With dead ends: 78 [2024-11-28 03:20:46,286 INFO L226 Difference]: Without dead ends: 38 [2024-11-28 03:20:46,290 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 [2024-11-28 03:20:46,297 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 1 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:46,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 98 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:20:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-28 03:20:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2024-11-28 03:20:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 36 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2024-11-28 03:20:46,348 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 11 [2024-11-28 03:20:46,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:46,351 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2024-11-28 03:20:46,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2024-11-28 03:20:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 03:20:46,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:46,353 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:46,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:20:46,354 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:46,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:46,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1830120123, now seen corresponding path program 1 times [2024-11-28 03:20:46,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735433190] [2024-11-28 03:20:46,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:46,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:46,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:46,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735433190] [2024-11-28 03:20:46,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735433190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:46,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135230328] [2024-11-28 03:20:46,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:46,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:46,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:46,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:46,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:20:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:46,764 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:20:46,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:46,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:46,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135230328] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:46,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:20:46,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2024-11-28 03:20:46,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433179996] [2024-11-28 03:20:46,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:46,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:46,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:46,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:46,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:20:46,986 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:47,002 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-28 03:20:47,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:47,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-28 03:20:47,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:47,006 INFO L225 Difference]: With dead ends: 44 [2024-11-28 03:20:47,006 INFO L226 Difference]: Without dead ends: 34 [2024-11-28 03:20:47,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:20:47,007 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 22 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:47,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 56 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:20:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-28 03:20:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2024-11-28 03:20:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-28 03:20:47,014 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 13 [2024-11-28 03:20:47,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:47,014 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-28 03:20:47,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,014 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-28 03:20:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 03:20:47,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:47,015 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:47,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:20:47,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:47,216 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:47,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:47,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1338918597, now seen corresponding path program 1 times [2024-11-28 03:20:47,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:47,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969431027] [2024-11-28 03:20:47,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:47,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:47,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:47,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969431027] [2024-11-28 03:20:47,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969431027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:47,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:47,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:47,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217536201] [2024-11-28 03:20:47,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:47,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:47,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:47,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:47,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:47,347 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:47,414 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2024-11-28 03:20:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 03:20:47,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:47,419 INFO L225 Difference]: With dead ends: 60 [2024-11-28 03:20:47,419 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 03:20:47,419 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 [2024-11-28 03:20:47,420 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:47,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 46 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 03:20:47,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2024-11-28 03:20:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 31 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2024-11-28 03:20:47,433 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 14 [2024-11-28 03:20:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:47,433 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2024-11-28 03:20:47,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2024-11-28 03:20:47,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 03:20:47,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:47,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:47,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:20:47,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:47,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1408361418, now seen corresponding path program 1 times [2024-11-28 03:20:47,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:47,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755215233] [2024-11-28 03:20:47,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:47,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:47,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:47,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755215233] [2024-11-28 03:20:47,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755215233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:47,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:47,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:20:47,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011310970] [2024-11-28 03:20:47,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:47,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:20:47,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:47,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:20:47,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:20:47,580 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:47,615 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2024-11-28 03:20:47,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:20:47,616 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 03:20:47,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:47,617 INFO L225 Difference]: With dead ends: 36 [2024-11-28 03:20:47,617 INFO L226 Difference]: Without dead ends: 34 [2024-11-28 03:20:47,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:20:47,618 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:47,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 96 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:20:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-28 03:20:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-28 03:20:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 33 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2024-11-28 03:20:47,624 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 14 [2024-11-28 03:20:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:47,625 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2024-11-28 03:20:47,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2024-11-28 03:20:47,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:20:47,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:47,626 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:47,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:20:47,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:47,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:47,627 INFO L85 PathProgramCache]: Analyzing trace with hash -646615283, now seen corresponding path program 1 times [2024-11-28 03:20:47,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:47,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402994444] [2024-11-28 03:20:47,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:47,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:20:47,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:47,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402994444] [2024-11-28 03:20:47,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402994444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:47,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:47,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:20:47,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664942801] [2024-11-28 03:20:47,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:47,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:20:47,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:47,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:20:47,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:20:47,696 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:47,738 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2024-11-28 03:20:47,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:20:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-11-28 03:20:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:47,739 INFO L225 Difference]: With dead ends: 56 [2024-11-28 03:20:47,739 INFO L226 Difference]: Without dead ends: 35 [2024-11-28 03:20:47,740 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 [2024-11-28 03:20:47,740 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:47,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 44 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:20:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-28 03:20:47,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2024-11-28 03:20:47,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-28 03:20:47,746 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 15 [2024-11-28 03:20:47,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:47,746 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-28 03:20:47,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-28 03:20:47,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 03:20:47,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:47,748 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:47,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:20:47,748 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:47,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash 963830422, now seen corresponding path program 1 times [2024-11-28 03:20:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930294128] [2024-11-28 03:20:47,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:47,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:47,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930294128] [2024-11-28 03:20:47,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930294128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:47,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598807066] [2024-11-28 03:20:47,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:47,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:47,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:47,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:48,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:20:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:48,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:20:48,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:48,153 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:20:48,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598807066] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:48,204 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:48,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 03:20:48,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669826073] [2024-11-28 03:20:48,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:48,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:20:48,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:48,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:20:48,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:20:48,210 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:48,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:48,294 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2024-11-28 03:20:48,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:48,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-28 03:20:48,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:48,298 INFO L225 Difference]: With dead ends: 59 [2024-11-28 03:20:48,298 INFO L226 Difference]: Without dead ends: 35 [2024-11-28 03:20:48,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:20:48,299 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:48,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:48,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-28 03:20:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-28 03:20:48,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1818181818181819) internal successors, (39), 34 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2024-11-28 03:20:48,305 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 20 [2024-11-28 03:20:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:48,306 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2024-11-28 03:20:48,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2024-11-28 03:20:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:20:48,306 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:48,307 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:48,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:20:48,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:48,507 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:48,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:48,508 INFO L85 PathProgramCache]: Analyzing trace with hash -637855390, now seen corresponding path program 2 times [2024-11-28 03:20:48,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:48,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833541737] [2024-11-28 03:20:48,508 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:20:48,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:48,686 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:20:48,686 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:20:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:20:50,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:50,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833541737] [2024-11-28 03:20:50,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833541737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:50,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:50,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:20:50,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488369800] [2024-11-28 03:20:50,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:20:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:50,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:20:50,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:20:50,383 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:50,631 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2024-11-28 03:20:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:20:50,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-28 03:20:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:50,635 INFO L225 Difference]: With dead ends: 53 [2024-11-28 03:20:50,636 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:20:50,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:20:50,639 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:50,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 58 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:20:50,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:20:50,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-28 03:20:50,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:50,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2024-11-28 03:20:50,650 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 26 [2024-11-28 03:20:50,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:50,651 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2024-11-28 03:20:50,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2024-11-28 03:20:50,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 03:20:50,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:50,654 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:50,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:20:50,654 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:50,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:50,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1020868272, now seen corresponding path program 1 times [2024-11-28 03:20:50,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:50,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654474690] [2024-11-28 03:20:50,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:50,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:20:50,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654474690] [2024-11-28 03:20:50,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654474690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:50,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:50,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:20:50,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633709216] [2024-11-28 03:20:50,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:50,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:20:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:50,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:20:50,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:20:50,804 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:50,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:50,851 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2024-11-28 03:20:50,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:20:50,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-28 03:20:50,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:50,852 INFO L225 Difference]: With dead ends: 36 [2024-11-28 03:20:50,853 INFO L226 Difference]: Without dead ends: 34 [2024-11-28 03:20:50,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:20:50,854 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:50,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 107 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:20:50,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-28 03:20:50,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-28 03:20:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:50,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-11-28 03:20:50,859 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 27 [2024-11-28 03:20:50,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:50,859 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-11-28 03:20:50,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:50,860 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-11-28 03:20:50,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 03:20:50,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:50,861 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:50,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:20:50,861 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-28 03:20:50,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:50,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1410685396, now seen corresponding path program 1 times [2024-11-28 03:20:50,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:20:50,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070134675] [2024-11-28 03:20:50,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:20:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:20:51,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:20:51,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070134675] [2024-11-28 03:20:51,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070134675] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:20:51,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298798637] [2024-11-28 03:20:51,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:51,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:51,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:20:51,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:20:51,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:20:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:51,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:20:51,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:20:51,439 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:20:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:20:51,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298798637] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:20:51,596 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:20:51,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-28 03:20:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125602699] [2024-11-28 03:20:51,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:20:51,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:20:51,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:20:51,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:20:51,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:20:51,602 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:51,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:51,838 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2024-11-28 03:20:51,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:20:51,839 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-28 03:20:51,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:51,839 INFO L225 Difference]: With dead ends: 59 [2024-11-28 03:20:51,839 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:20:51,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:20:51,840 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:51,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 71 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:20:51,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:20:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:20:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:51,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:20:51,842 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2024-11-28 03:20:51,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:51,842 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:20:51,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:20:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:20:51,843 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:20:51,845 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-28 03:20:51,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-11-28 03:20:51,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-11-28 03:20:51,846 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-11-28 03:20:51,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:20:52,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:20:52,050 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:52,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:20:52,068 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:20:52,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:20:52 BoogieIcfgContainer [2024-11-28 03:20:52,083 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:20:52,084 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:20:52,084 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:20:52,084 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:20:52,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:45" (3/4) ... [2024-11-28 03:20:52,088 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:20:52,097 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-28 03:20:52,098 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:20:52,100 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:20:52,100 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:20:52,201 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:20:52,202 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:20:52,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:20:52,203 INFO L158 Benchmark]: Toolchain (without parser) took 7670.98ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 91.6MB in the end (delta: 25.9MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2024-11-28 03:20:52,203 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:52,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.33ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 105.1MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:20:52,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.28ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:20:52,204 INFO L158 Benchmark]: Boogie Preprocessor took 46.50ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:52,204 INFO L158 Benchmark]: RCFGBuilder took 575.66ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 86.7MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:20:52,205 INFO L158 Benchmark]: TraceAbstraction took 6502.17ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 95.9MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:52,205 INFO L158 Benchmark]: Witness Printer took 117.65ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 91.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:20:52,207 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.33ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 105.1MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.28ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.50ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 101.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 575.66ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 86.7MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6502.17ms. Allocated memory is still 142.6MB. Free memory was 86.0MB in the beginning and 95.9MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 117.65ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 91.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 77]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 113]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 171]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 104 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 104 mSDsluCounter, 687 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 420 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 299 IncrementalHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 267 mSDtfsCounter, 299 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 17 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 231 NumberOfCodeBlocks, 223 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 972 SizeOfPredicates, 1 NumberOfNonLiveVariables, 287 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 72/95 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (main__loop_entered == 0) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:20:52,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85ba2158-224c-40ac-9d58-9a2453aa1fd4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE