./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/standard_copy8_ground-1.i --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_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/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_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_copy8_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/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_f3684513-1a12-4fc4-8e11-b307532f1f7f/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 b0c6415972065c9ff43b5856efb761d681539c8118849d13a6e5409704b87c70 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:25:57,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:25:57,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:25:57,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:25:57,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:25:57,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:25:57,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:25:57,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:25:57,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:25:57,866 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:25:57,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:25:57,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:25:57,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:25:57,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:25:57,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:25:57,868 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:25:57,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:25:57,869 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:25:57,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:25:57,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:25:57,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:25:57,870 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_f3684513-1a12-4fc4-8e11-b307532f1f7f/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 -> b0c6415972065c9ff43b5856efb761d681539c8118849d13a6e5409704b87c70 [2024-11-28 03:25:58,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:25:58,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:25:58,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:25:58,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:25:58,180 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:25:58,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-examples/standard_copy8_ground-1.i [2024-11-28 03:26:01,130 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/a6c17ad1a/4361c9072cf0479193d45faa7e551c07/FLAG0f84aa5b6 [2024-11-28 03:26:01,392 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:26:01,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/sv-benchmarks/c/array-examples/standard_copy8_ground-1.i [2024-11-28 03:26:01,408 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/a6c17ad1a/4361c9072cf0479193d45faa7e551c07/FLAG0f84aa5b6 [2024-11-28 03:26:01,438 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/a6c17ad1a/4361c9072cf0479193d45faa7e551c07 [2024-11-28 03:26:01,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:26:01,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:26:01,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:01,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:26:01,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:26:01,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700bdd28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01, skipping insertion in model container [2024-11-28 03:26:01,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:26:01,643 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_f3684513-1a12-4fc4-8e11-b307532f1f7f/sv-benchmarks/c/array-examples/standard_copy8_ground-1.i[816,829] [2024-11-28 03:26:01,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:01,685 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:26:01,696 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_f3684513-1a12-4fc4-8e11-b307532f1f7f/sv-benchmarks/c/array-examples/standard_copy8_ground-1.i[816,829] [2024-11-28 03:26:01,710 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:26:01,723 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:26:01,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01 WrapperNode [2024-11-28 03:26:01,724 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:26:01,725 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:01,725 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:26:01,725 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:26:01,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,758 INFO L138 Inliner]: procedures = 16, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 166 [2024-11-28 03:26:01,759 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:26:01,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:26:01,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:26:01,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:26:01,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,784 INFO L175 MemorySlicer]: Split 21 memory accesses to 10 slices as follows [2, 2, 2, 2, 2, 2, 3, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-28 03:26:01,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,792 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:26:01,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:26:01,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:26:01,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:26:01,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (1/1) ... [2024-11-28 03:26:01,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:26:01,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:01,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:26:01,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:26:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:26:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:26:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 03:26:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 03:26:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:26:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 03:26:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:26:02,028 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:26:02,030 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:26:02,287 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:26:02,287 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:26:02,297 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:26:02,297 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-28 03:26:02,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:02 BoogieIcfgContainer [2024-11-28 03:26:02,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:26:02,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:26:02,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:26:02,306 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:26:02,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:26:01" (1/3) ... [2024-11-28 03:26:02,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d02fe51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:02, skipping insertion in model container [2024-11-28 03:26:02,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:26:01" (2/3) ... [2024-11-28 03:26:02,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d02fe51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:26:02, skipping insertion in model container [2024-11-28 03:26:02,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:26:02" (3/3) ... [2024-11-28 03:26:02,308 INFO L128 eAbstractionObserver]: Analyzing ICFG standard_copy8_ground-1.i [2024-11-28 03:26:02,323 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:26:02,325 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG standard_copy8_ground-1.i that has 1 procedures, 39 locations, 1 initial locations, 10 loop locations, and 1 error locations. [2024-11-28 03:26:02,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:26:02,393 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;@47e60610, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:26:02,394 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:26:02,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 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 03:26:02,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:26:02,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:02,404 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, 1, 1, 1, 1] [2024-11-28 03:26:02,404 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:02,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:02,411 INFO L85 PathProgramCache]: Analyzing trace with hash 812434007, now seen corresponding path program 1 times [2024-11-28 03:26:02,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:02,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659420667] [2024-11-28 03:26:02,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:02,788 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 03:26:02,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:02,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659420667] [2024-11-28 03:26:02,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659420667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:02,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:26:02,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:26:02,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822217860] [2024-11-28 03:26:02,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:02,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:26:02,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:02,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:26:02,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:26:02,818 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 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 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 03:26:02,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:02,875 INFO L93 Difference]: Finished difference Result 76 states and 116 transitions. [2024-11-28 03:26:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:26:02,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2024-11-28 03:26:02,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:02,886 INFO L225 Difference]: With dead ends: 76 [2024-11-28 03:26:02,886 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:26:02,889 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 03:26:02,894 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:02,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 89 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:26:02,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-28 03:26:02,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 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 03:26:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2024-11-28 03:26:02,931 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 24 [2024-11-28 03:26:02,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:02,932 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-28 03:26:02,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 03:26:02,932 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-11-28 03:26:02,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:26:02,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:02,935 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, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:02,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:26:02,935 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:02,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1128274851, now seen corresponding path program 1 times [2024-11-28 03:26:02,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:02,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548165390] [2024-11-28 03:26:02,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:02,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:03,184 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 03:26:03,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548165390] [2024-11-28 03:26:03,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548165390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:03,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227558865] [2024-11-28 03:26:03,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:03,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:03,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:03,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:03,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:26:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:03,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:26:03,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:03,398 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 03:26:03,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:26:03,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227558865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:26:03,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:26:03,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-28 03:26:03,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183033260] [2024-11-28 03:26:03,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:26:03,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:26:03,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:03,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:26:03,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:03,405 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 03:26:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:03,552 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2024-11-28 03:26:03,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:26:03,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 26 [2024-11-28 03:26:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:03,554 INFO L225 Difference]: With dead ends: 80 [2024-11-28 03:26:03,554 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 03:26:03,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:26:03,556 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:03,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:26:03,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 03:26:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2024-11-28 03:26:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 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 03:26:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2024-11-28 03:26:03,568 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2024-11-28 03:26:03,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:03,568 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2024-11-28 03:26:03,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 03:26:03,569 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2024-11-28 03:26:03,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:26:03,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:03,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:03,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:26:03,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:03,774 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:03,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1429278403, now seen corresponding path program 1 times [2024-11-28 03:26:03,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:03,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824051822] [2024-11-28 03:26:03,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:03,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:04,048 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:26:04,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:04,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824051822] [2024-11-28 03:26:04,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824051822] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:04,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235228258] [2024-11-28 03:26:04,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:26:04,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:04,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:04,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:04,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:26:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:26:04,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:04,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:26:04,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:04,331 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:26:04,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235228258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:04,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:26:04,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 03:26:04,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221508202] [2024-11-28 03:26:04,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:04,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:26:04,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:04,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:26:04,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:04,334 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 03:26:04,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:04,377 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2024-11-28 03:26:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 42 [2024-11-28 03:26:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:04,379 INFO L225 Difference]: With dead ends: 89 [2024-11-28 03:26:04,379 INFO L226 Difference]: Without dead ends: 50 [2024-11-28 03:26:04,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:04,380 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:04,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 162 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:26:04,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-28 03:26:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-28 03:26:04,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.2040816326530612) internal successors, (59), 49 states have internal predecessors, (59), 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 03:26:04,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2024-11-28 03:26:04,387 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 42 [2024-11-28 03:26:04,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:04,387 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2024-11-28 03:26:04,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 03:26:04,388 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2024-11-28 03:26:04,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:26:04,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:04,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:04,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:26:04,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-28 03:26:04,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:04,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -174922609, now seen corresponding path program 2 times [2024-11-28 03:26:04,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:04,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900952646] [2024-11-28 03:26:04,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:26:04,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:04,643 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:26:04,643 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:26:04,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:04,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900952646] [2024-11-28 03:26:04,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900952646] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:04,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642290407] [2024-11-28 03:26:04,794 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:26:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:04,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:04,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:26:04,972 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:26:04,972 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:04,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:26:04,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:05,006 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:26:05,006 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:05,034 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 03:26:05,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642290407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:05,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:26:05,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 03:26:05,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713287137] [2024-11-28 03:26:05,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:05,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:26:05,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:05,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:26:05,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:05,036 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 03:26:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:05,328 INFO L93 Difference]: Finished difference Result 133 states and 173 transitions. [2024-11-28 03:26:05,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:26:05,329 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 48 [2024-11-28 03:26:05,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:05,330 INFO L225 Difference]: With dead ends: 133 [2024-11-28 03:26:05,330 INFO L226 Difference]: Without dead ends: 98 [2024-11-28 03:26:05,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:26:05,331 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:05,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 61 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:26:05,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-28 03:26:05,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-28 03:26:05,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.1030927835051547) internal successors, (107), 97 states have internal predecessors, (107), 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 03:26:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-11-28 03:26:05,352 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 48 [2024-11-28 03:26:05,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:05,352 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-11-28 03:26:05,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 03:26:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-11-28 03:26:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:26:05,355 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:05,355 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:05,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:26:05,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:05,557 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:05,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:05,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1827042799, now seen corresponding path program 3 times [2024-11-28 03:26:05,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:05,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034019997] [2024-11-28 03:26:05,558 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:26:05,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:05,865 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-28 03:26:05,865 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:06,168 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:26:06,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034019997] [2024-11-28 03:26:06,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034019997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114604927] [2024-11-28 03:26:06,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:26:06,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:06,172 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:06,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:26:06,987 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-28 03:26:06,987 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:06,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:26:06,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:26:07,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:26:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:26:07,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114604927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:26:07,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:26:07,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 03:26:07,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966013821] [2024-11-28 03:26:07,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:26:07,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:26:07,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:26:07,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:26:07,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:26:07,155 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 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 03:26:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:26:07,681 INFO L93 Difference]: Finished difference Result 271 states and 335 transitions. [2024-11-28 03:26:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:26:07,682 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 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 96 [2024-11-28 03:26:07,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:26:07,683 INFO L225 Difference]: With dead ends: 271 [2024-11-28 03:26:07,683 INFO L226 Difference]: Without dead ends: 194 [2024-11-28 03:26:07,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:26:07,685 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 191 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:26:07,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 50 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:26:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-28 03:26:07,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-28 03:26:07,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.0518134715025906) internal successors, (203), 193 states have internal predecessors, (203), 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 03:26:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 203 transitions. [2024-11-28 03:26:07,721 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 203 transitions. Word has length 96 [2024-11-28 03:26:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:26:07,721 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 203 transitions. [2024-11-28 03:26:07,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 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 03:26:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 203 transitions. [2024-11-28 03:26:07,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 03:26:07,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:26:07,725 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:26:07,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:26:07,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:07,925 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:26:07,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:26:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1717147823, now seen corresponding path program 4 times [2024-11-28 03:26:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:26:07,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682319213] [2024-11-28 03:26:07,926 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:26:07,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:26:08,384 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:26:08,385 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 449 proven. 351 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:26:25,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:26:25,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682319213] [2024-11-28 03:26:25,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682319213] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:26:25,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173333729] [2024-11-28 03:26:25,184 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:26:25,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:26:25,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:26:25,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:26:25,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:26:25,536 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:26:25,536 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:26:25,551 WARN L254 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 268 conjuncts are in the unsatisfiable core [2024-11-28 03:26:25,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:26:25,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:26:25,675 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-11-28 03:26:25,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 34 [2024-11-28 03:26:25,931 INFO L349 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2024-11-28 03:26:25,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 56 [2024-11-28 03:26:26,225 INFO L349 Elim1Store]: treesize reduction 104, result has 22.4 percent of original size [2024-11-28 03:26:26,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 78 [2024-11-28 03:26:26,617 INFO L349 Elim1Store]: treesize reduction 156, result has 20.8 percent of original size [2024-11-28 03:26:26,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 100 [2024-11-28 03:26:27,076 INFO L349 Elim1Store]: treesize reduction 216, result has 19.4 percent of original size [2024-11-28 03:26:27,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 111 treesize of output 122 [2024-11-28 03:26:27,646 INFO L349 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2024-11-28 03:26:27,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 130 treesize of output 144 [2024-11-28 03:26:28,617 INFO L349 Elim1Store]: treesize reduction 360, result has 17.1 percent of original size [2024-11-28 03:26:28,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 149 treesize of output 166 [2024-11-28 03:26:36,098 INFO L349 Elim1Store]: treesize reduction 444, result has 16.1 percent of original size [2024-11-28 03:26:36,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 168 treesize of output 188 [2024-11-28 03:26:57,878 INFO L349 Elim1Store]: treesize reduction 536, result has 15.2 percent of original size [2024-11-28 03:26:57,878 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 187 treesize of output 210 [2024-11-28 03:27:12,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-28 03:27:12,144 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-28 03:27:12,145 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-28 03:27:12,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:27:12,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:12,346 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:947) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2024-11-28 03:27:12,352 INFO L158 Benchmark]: Toolchain (without parser) took 70909.73ms. Allocated memory was 117.4MB in the beginning and 771.8MB in the end (delta: 654.3MB). Free memory was 94.4MB in the beginning and 346.3MB in the end (delta: -252.0MB). Peak memory consumption was 396.9MB. Max. memory is 16.1GB. [2024-11-28 03:27:12,352 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:27:12,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.49ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 82.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:27:12,353 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.79ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 80.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:27:12,353 INFO L158 Benchmark]: Boogie Preprocessor took 42.12ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:27:12,353 INFO L158 Benchmark]: RCFGBuilder took 495.99ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 61.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:27:12,353 INFO L158 Benchmark]: TraceAbstraction took 70050.83ms. Allocated memory was 117.4MB in the beginning and 771.8MB in the end (delta: 654.3MB). Free memory was 61.3MB in the beginning and 346.3MB in the end (delta: -285.0MB). Peak memory consumption was 363.4MB. Max. memory is 16.1GB. [2024-11-28 03:27:12,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.49ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 82.1MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.79ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 80.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.12ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.5MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 495.99ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 61.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 70050.83ms. Allocated memory was 117.4MB in the beginning and 771.8MB in the end (delta: 654.3MB). Free memory was 61.3MB in the beginning and 346.3MB in the end (delta: -285.0MB). Peak memory consumption was 363.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/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_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/standard_copy8_ground-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/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 b0c6415972065c9ff43b5856efb761d681539c8118849d13a6e5409704b87c70 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:27:14,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:27:14,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:27:14,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:27:14,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:27:14,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:27:14,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:27:14,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:27:14,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:27:14,961 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:27:14,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:27:14,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:27:14,963 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:27:14,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:27:14,964 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:27:14,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:27:14,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:27:14,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:27:14,965 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:27:14,966 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:27:14,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:27:14,966 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:27:14,966 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:27:14,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:27:14,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:27:14,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:27:14,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:27:14,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:27:14,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:27:14,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:27:14,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:27:14,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:27:14,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:27:14,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:27:14,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:27:14,968 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:27:14,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:27:14,968 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:27:14,968 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:27:14,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:27:14,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:27:14,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:27:14,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:27:14,969 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_f3684513-1a12-4fc4-8e11-b307532f1f7f/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 -> b0c6415972065c9ff43b5856efb761d681539c8118849d13a6e5409704b87c70 [2024-11-28 03:27:15,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:27:15,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:27:15,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:27:15,292 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:27:15,292 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:27:15,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-examples/standard_copy8_ground-1.i [2024-11-28 03:27:18,301 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/204343926/573aca401aba479b8bc108594e827257/FLAG318ae3b88 [2024-11-28 03:27:18,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:27:18,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/sv-benchmarks/c/array-examples/standard_copy8_ground-1.i [2024-11-28 03:27:18,580 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/204343926/573aca401aba479b8bc108594e827257/FLAG318ae3b88 [2024-11-28 03:27:18,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/data/204343926/573aca401aba479b8bc108594e827257 [2024-11-28 03:27:18,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:27:18,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:27:18,609 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:27:18,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:27:18,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:27:18,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:18,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658835de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18, skipping insertion in model container [2024-11-28 03:27:18,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:18,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:27:18,806 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_f3684513-1a12-4fc4-8e11-b307532f1f7f/sv-benchmarks/c/array-examples/standard_copy8_ground-1.i[816,829] [2024-11-28 03:27:18,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:27:18,863 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:27:18,876 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_f3684513-1a12-4fc4-8e11-b307532f1f7f/sv-benchmarks/c/array-examples/standard_copy8_ground-1.i[816,829] [2024-11-28 03:27:18,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:27:18,928 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:27:18,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18 WrapperNode [2024-11-28 03:27:18,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:27:18,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:27:18,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:27:18,930 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:27:18,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:18,952 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:18,984 INFO L138 Inliner]: procedures = 18, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 165 [2024-11-28 03:27:18,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:27:18,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:27:18,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:27:18,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:27:18,998 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:18,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,024 INFO L175 MemorySlicer]: Split 21 memory accesses to 10 slices as follows [2, 2, 2, 2, 3, 2, 2, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-28 03:27:19,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,039 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:27:19,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:27:19,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:27:19,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:27:19,067 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (1/1) ... [2024-11-28 03:27:19,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:27:19,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:19,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:27:19,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:27:19,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 03:27:19,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-28 03:27:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-28 03:27:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-28 03:27:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-28 03:27:19,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:27:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 03:27:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 03:27:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 03:27:19,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 03:27:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 03:27:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 03:27:19,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-28 03:27:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-28 03:27:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-28 03:27:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-28 03:27:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:27:19,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:27:19,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-28 03:27:19,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-28 03:27:19,256 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:27:19,258 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:27:19,671 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:27:19,672 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:27:19,684 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:27:19,685 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-28 03:27:19,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:19 BoogieIcfgContainer [2024-11-28 03:27:19,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:27:19,688 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:27:19,688 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:27:19,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:27:19,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:27:18" (1/3) ... [2024-11-28 03:27:19,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1497aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:27:19, skipping insertion in model container [2024-11-28 03:27:19,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:27:18" (2/3) ... [2024-11-28 03:27:19,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1497aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:27:19, skipping insertion in model container [2024-11-28 03:27:19,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:27:19" (3/3) ... [2024-11-28 03:27:19,697 INFO L128 eAbstractionObserver]: Analyzing ICFG standard_copy8_ground-1.i [2024-11-28 03:27:19,712 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:27:19,714 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG standard_copy8_ground-1.i that has 1 procedures, 39 locations, 1 initial locations, 10 loop locations, and 1 error locations. [2024-11-28 03:27:19,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:27:19,814 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;@1524662c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:27:19,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:27:19,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 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 03:27:19,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:27:19,824 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:19,825 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, 1, 1, 1, 1] [2024-11-28 03:27:19,825 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:19,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:19,830 INFO L85 PathProgramCache]: Analyzing trace with hash 812434007, now seen corresponding path program 1 times [2024-11-28 03:27:19,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:19,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43174316] [2024-11-28 03:27:19,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:19,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:19,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:19,844 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:19,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:27:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:20,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:27:20,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:20,025 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 03:27:20,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:27:20,026 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:20,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43174316] [2024-11-28 03:27:20,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43174316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:27:20,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:27:20,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:27:20,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959589037] [2024-11-28 03:27:20,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:27:20,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:27:20,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:20,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:27:20,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:27:20,053 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 38 states have internal predecessors, (59), 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 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 03:27:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:20,069 INFO L93 Difference]: Finished difference Result 74 states and 112 transitions. [2024-11-28 03:27:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:27:20,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2024-11-28 03:27:20,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:20,077 INFO L225 Difference]: With dead ends: 74 [2024-11-28 03:27:20,077 INFO L226 Difference]: Without dead ends: 35 [2024-11-28 03:27:20,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:27:20,083 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:20,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:27:20,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-28 03:27:20,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-28 03:27:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 34 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 03:27:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2024-11-28 03:27:20,113 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 24 [2024-11-28 03:27:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:20,113 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2024-11-28 03:27:20,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 03:27:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2024-11-28 03:27:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 03:27:20,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:20,115 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, 1, 1, 1, 1] [2024-11-28 03:27:20,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:27:20,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:20,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:20,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:20,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1077786017, now seen corresponding path program 1 times [2024-11-28 03:27:20,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:20,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481518390] [2024-11-28 03:27:20,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:20,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:20,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:20,325 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:20,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:27:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:20,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:27:20,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:20,480 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 03:27:20,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:27:20,480 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:20,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481518390] [2024-11-28 03:27:20,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481518390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:27:20,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:27:20,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:27:20,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139596916] [2024-11-28 03:27:20,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:27:20,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:27:20,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:20,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:27:20,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:27:20,486 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 03:27:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:20,512 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2024-11-28 03:27:20,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:27:20,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2024-11-28 03:27:20,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:20,516 INFO L225 Difference]: With dead ends: 68 [2024-11-28 03:27:20,516 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:27:20,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 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 03:27:20,519 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:20,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 82 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:27:20,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:27:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-11-28 03:27:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2857142857142858) internal successors, (45), 35 states have internal predecessors, (45), 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 03:27:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2024-11-28 03:27:20,526 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 24 [2024-11-28 03:27:20,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:20,526 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-28 03:27:20,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 03:27:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-11-28 03:27:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:27:20,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:20,529 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, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:20,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:27:20,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:20,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:20,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:20,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1128274851, now seen corresponding path program 1 times [2024-11-28 03:27:20,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:20,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924487837] [2024-11-28 03:27:20,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:20,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:20,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:20,738 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:20,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:27:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:20,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:27:20,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:20,878 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 03:27:20,878 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:27:20,878 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:20,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924487837] [2024-11-28 03:27:20,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924487837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:27:20,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:27:20,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:27:20,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860969459] [2024-11-28 03:27:20,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:27:20,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:27:20,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:20,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:27:20,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:27:20,880 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 03:27:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:21,055 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2024-11-28 03:27:21,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:27:21,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 26 [2024-11-28 03:27:21,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:21,058 INFO L225 Difference]: With dead ends: 80 [2024-11-28 03:27:21,058 INFO L226 Difference]: Without dead ends: 52 [2024-11-28 03:27:21,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 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 03:27:21,059 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:21,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:27:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-28 03:27:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2024-11-28 03:27:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 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 03:27:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2024-11-28 03:27:21,072 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2024-11-28 03:27:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:21,073 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2024-11-28 03:27:21,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 03:27:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2024-11-28 03:27:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:27:21,074 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:21,075 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:21,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:27:21,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:21,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:21,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:21,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1429278403, now seen corresponding path program 1 times [2024-11-28 03:27:21,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:21,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151598845] [2024-11-28 03:27:21,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:27:21,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:21,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:21,281 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:21,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:27:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:27:21,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:27:21,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:27:21,473 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:27:21,509 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:21,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151598845] [2024-11-28 03:27:21,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151598845] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:27:21,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:27:21,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-28 03:27:21,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11385840] [2024-11-28 03:27:21,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:21,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:27:21,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:21,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:27:21,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:27:21,511 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 03:27:21,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:21,938 INFO L93 Difference]: Finished difference Result 127 states and 167 transitions. [2024-11-28 03:27:21,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:27:21,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 42 [2024-11-28 03:27:21,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:21,940 INFO L225 Difference]: With dead ends: 127 [2024-11-28 03:27:21,940 INFO L226 Difference]: Without dead ends: 92 [2024-11-28 03:27:21,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:27:21,942 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 45 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:21,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 61 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:27:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-28 03:27:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-28 03:27:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.10989010989011) internal successors, (101), 91 states have internal predecessors, (101), 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 03:27:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2024-11-28 03:27:21,964 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 42 [2024-11-28 03:27:21,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:21,964 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2024-11-28 03:27:21,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 03:27:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2024-11-28 03:27:21,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 03:27:21,966 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:21,966 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:21,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:27:22,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:22,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:22,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:22,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1404823587, now seen corresponding path program 2 times [2024-11-28 03:27:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151377954] [2024-11-28 03:27:22,168 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:27:22,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:22,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:22,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:22,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:27:22,459 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:27:22,459 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:22,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:27:22,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:27:22,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:27:22,550 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:22,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151377954] [2024-11-28 03:27:22,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151377954] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:27:22,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:27:22,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-28 03:27:22,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223189981] [2024-11-28 03:27:22,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:22,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:27:22,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:22,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:27:22,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:27:22,553 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 03:27:22,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:22,640 INFO L93 Difference]: Finished difference Result 185 states and 205 transitions. [2024-11-28 03:27:22,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:27:22,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 90 [2024-11-28 03:27:22,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:22,642 INFO L225 Difference]: With dead ends: 185 [2024-11-28 03:27:22,642 INFO L226 Difference]: Without dead ends: 98 [2024-11-28 03:27:22,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:27:22,643 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 3 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:22,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 122 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:27:22,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-28 03:27:22,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-28 03:27:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.1030927835051547) internal successors, (107), 97 states have internal predecessors, (107), 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 03:27:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2024-11-28 03:27:22,666 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 90 [2024-11-28 03:27:22,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:22,666 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2024-11-28 03:27:22,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 03:27:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2024-11-28 03:27:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 03:27:22,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:22,671 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:22,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:27:22,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:22,872 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:22,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1827042799, now seen corresponding path program 3 times [2024-11-28 03:27:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:22,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199506462] [2024-11-28 03:27:22,873 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:27:22,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:22,875 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:22,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:27:28,688 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-28 03:27:28,688 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:28,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:27:28,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:27:28,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:27:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:27:28,988 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:27:28,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199506462] [2024-11-28 03:27:28,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199506462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:27:28,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:27:28,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2024-11-28 03:27:28,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747343090] [2024-11-28 03:27:28,993 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:27:28,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:27:28,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:27:28,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:27:28,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:27:28,994 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 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 03:27:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:27:30,477 INFO L93 Difference]: Finished difference Result 271 states and 335 transitions. [2024-11-28 03:27:30,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:27:30,477 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 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) Word has length 96 [2024-11-28 03:27:30,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:27:30,479 INFO L225 Difference]: With dead ends: 271 [2024-11-28 03:27:30,479 INFO L226 Difference]: Without dead ends: 194 [2024-11-28 03:27:30,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:27:30,480 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 300 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:27:30,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 94 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:27:30,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-28 03:27:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-28 03:27:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.0518134715025906) internal successors, (203), 193 states have internal predecessors, (203), 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 03:27:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 203 transitions. [2024-11-28 03:27:30,506 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 203 transitions. Word has length 96 [2024-11-28 03:27:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:27:30,507 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 203 transitions. [2024-11-28 03:27:30,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 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 03:27:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 203 transitions. [2024-11-28 03:27:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-28 03:27:30,509 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:27:30,509 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:27:30,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:27:30,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:30,710 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:27:30,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:27:30,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1717147823, now seen corresponding path program 4 times [2024-11-28 03:27:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:27:30,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [922589731] [2024-11-28 03:27:30,713 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:27:30,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:27:30,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:27:30,715 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:27:30,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3684513-1a12-4fc4-8e11-b307532f1f7f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:27:58,060 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:27:58,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:27:58,090 WARN L254 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 251 conjuncts are in the unsatisfiable core [2024-11-28 03:27:58,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:27:58,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:27:58,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-28 03:27:58,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:27:58,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:58,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:27:59,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:27:59,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2024-11-28 03:27:59,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:27:59,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 48 [2024-11-28 03:28:00,150 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:00,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 66 [2024-11-28 03:28:00,378 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:00,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 84 [2024-11-28 03:28:00,705 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:00,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 102 [2024-11-28 03:28:01,054 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:01,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 120 [2024-11-28 03:28:01,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:01,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 138 [2024-11-28 03:28:01,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:01,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 156 [2024-11-28 03:28:02,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:02,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 162 treesize of output 100 [2024-11-28 03:28:02,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:02,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:28:02,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2024-11-28 03:28:02,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:02,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 48 [2024-11-28 03:28:03,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:03,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 66 [2024-11-28 03:28:03,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:03,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 84 [2024-11-28 03:28:03,680 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:03,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 102 [2024-11-28 03:28:04,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:04,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 120 [2024-11-28 03:28:04,554 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:04,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 138 [2024-11-28 03:28:05,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:05,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 156 [2024-11-28 03:28:05,692 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:05,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 162 treesize of output 100 [2024-11-28 03:28:05,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:05,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:28:06,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2024-11-28 03:28:06,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:06,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 48 [2024-11-28 03:28:06,573 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:06,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 66 [2024-11-28 03:28:06,953 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:06,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 84 [2024-11-28 03:28:07,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:07,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 102 [2024-11-28 03:28:07,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:07,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 106 treesize of output 120 [2024-11-28 03:28:08,148 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:08,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 138 [2024-11-28 03:28:08,642 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:08,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 156 [2024-11-28 03:28:09,200 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:28:09,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 162 treesize of output 100 [2024-11-28 03:28:09,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:09,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-28 03:28:09,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:28:09,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:09,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:09,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:10,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:10,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:10,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:10,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:10,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:11,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:11,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-28 03:28:11,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:28:11,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:11,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:11,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:12,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:12,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:12,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:12,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:13,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:13,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:13,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-28 03:28:13,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-28 03:28:13,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:14,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:14,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:14,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:14,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:14,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:15,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:15,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:15,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-28 03:28:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 800 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:28:16,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:28:27,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 96 [2024-11-28 03:28:27,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 209797098 treesize of output 209780714 [2024-11-28 03:28:40,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 96