./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array19_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/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_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array19_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/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_494d0132-a5c0-49b2-b1fd-5fac20c8e886/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 21ab39d122ec2c6e96fa6b8c9d53d6f966068253a8a3d3ba32389613dd7dc54a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:46,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:47,074 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:10:47,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:47,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:47,171 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:47,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:47,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:47,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:47,174 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:47,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:47,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:47,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:47,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:47,177 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:47,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:47,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:47,181 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:47,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:10:47,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:47,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:47,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:47,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:47,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:47,182 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:47,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:47,183 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:47,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:47,183 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:47,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:47,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:47,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:47,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:47,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:47,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:47,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:47,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:47,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:47,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:47,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:47,185 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:47,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:47,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:10:47,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:10:47,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:47,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:47,188 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:47,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:47,189 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_494d0132-a5c0-49b2-b1fd-5fac20c8e886/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 -> 21ab39d122ec2c6e96fa6b8c9d53d6f966068253a8a3d3ba32389613dd7dc54a [2024-11-28 03:10:47,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:47,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:47,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:47,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:47,764 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:47,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/array-patterns/array19_pattern.c [2024-11-28 03:10:52,522 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/data/5baaaead0/1b3b487d42e6496184ee69c3be86e149/FLAG558100aea [2024-11-28 03:10:52,932 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:10:52,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/sv-benchmarks/c/array-patterns/array19_pattern.c [2024-11-28 03:10:52,954 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/data/5baaaead0/1b3b487d42e6496184ee69c3be86e149/FLAG558100aea [2024-11-28 03:10:52,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/data/5baaaead0/1b3b487d42e6496184ee69c3be86e149 [2024-11-28 03:10:53,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:10:53,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:10:53,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:53,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:10:53,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:10:53,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5929f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53, skipping insertion in model container [2024-11-28 03:10:53,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:10:53,370 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_494d0132-a5c0-49b2-b1fd-5fac20c8e886/sv-benchmarks/c/array-patterns/array19_pattern.c[1442,1455] [2024-11-28 03:10:53,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:53,453 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:10:53,474 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_494d0132-a5c0-49b2-b1fd-5fac20c8e886/sv-benchmarks/c/array-patterns/array19_pattern.c[1442,1455] [2024-11-28 03:10:53,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:53,555 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:10:53,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53 WrapperNode [2024-11-28 03:10:53,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:53,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:53,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:10:53,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:10:53,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,661 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2024-11-28 03:10:53,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:53,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:10:53,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:10:53,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:10:53,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,734 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-28 03:10:53,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,746 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,751 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:10:53,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:10:53,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:10:53,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:10:53,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (1/1) ... [2024-11-28 03:10:53,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:53,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:53,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:10:53,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:10:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:10:53,901 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:10:53,901 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:10:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:10:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:10:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:10:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:10:53,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:10:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:10:53,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:10:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:10:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:10:53,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:10:54,051 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:10:54,054 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:10:54,509 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-28 03:10:54,510 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:10:54,530 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:10:54,534 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 03:10:54,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:54 BoogieIcfgContainer [2024-11-28 03:10:54,534 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:10:54,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:10:54,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:10:54,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:10:54,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:53" (1/3) ... [2024-11-28 03:10:54,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca50ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:54, skipping insertion in model container [2024-11-28 03:10:54,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:53" (2/3) ... [2024-11-28 03:10:54,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca50ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:54, skipping insertion in model container [2024-11-28 03:10:54,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:54" (3/3) ... [2024-11-28 03:10:54,553 INFO L128 eAbstractionObserver]: Analyzing ICFG array19_pattern.c [2024-11-28 03:10:54,578 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:10:54,580 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG array19_pattern.c that has 2 procedures, 35 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-28 03:10:54,689 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:10:54,717 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;@7c5bb99a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:10:54,718 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:10:54,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 30 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 03:10:54,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:54,738 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:54,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:54,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1020821997, now seen corresponding path program 1 times [2024-11-28 03:10:54,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:54,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156209883] [2024-11-28 03:10:54,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:54,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:55,024 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 03:10:55,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:55,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156209883] [2024-11-28 03:10:55,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156209883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:55,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:55,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:10:55,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476762697] [2024-11-28 03:10:55,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:55,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:10:55,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:55,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:10:55,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:55,095 INFO L87 Difference]: Start difference. First operand has 35 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 30 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:10:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:55,139 INFO L93 Difference]: Finished difference Result 67 states and 101 transitions. [2024-11-28 03:10:55,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:10:55,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-28 03:10:55,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:55,154 INFO L225 Difference]: With dead ends: 67 [2024-11-28 03:10:55,155 INFO L226 Difference]: Without dead ends: 31 [2024-11-28 03:10:55,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 03:10:55,170 INFO L435 NwaCegarLoop]: 43 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, 43 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 03:10:55,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-28 03:10:55,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-28 03:10:55,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:55,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2024-11-28 03:10:55,240 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 15 [2024-11-28 03:10:55,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:55,240 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2024-11-28 03:10:55,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 03:10:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2024-11-28 03:10:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:10:55,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:55,244 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:55,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:10:55,248 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:55,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:55,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1618540529, now seen corresponding path program 1 times [2024-11-28 03:10:55,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:55,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843670890] [2024-11-28 03:10:55,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:10:56,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:56,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843670890] [2024-11-28 03:10:56,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843670890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:56,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:56,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:10:56,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783817996] [2024-11-28 03:10:56,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:56,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:10:56,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:56,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:10:56,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:10:56,265 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:56,308 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2024-11-28 03:10:56,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:10:56,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2024-11-28 03:10:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:56,310 INFO L225 Difference]: With dead ends: 40 [2024-11-28 03:10:56,310 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 03:10:56,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:10:56,312 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 14 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:56,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 89 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:56,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 03:10:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2024-11-28 03:10:56,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2024-11-28 03:10:56,326 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 30 [2024-11-28 03:10:56,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:56,328 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2024-11-28 03:10:56,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2024-11-28 03:10:56,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:10:56,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:56,331 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:56,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:10:56,332 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:56,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:56,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1945910593, now seen corresponding path program 1 times [2024-11-28 03:10:56,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:56,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015636378] [2024-11-28 03:10:56,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:56,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 03:10:56,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:56,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015636378] [2024-11-28 03:10:56,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015636378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:56,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:56,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:10:56,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696730215] [2024-11-28 03:10:56,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:56,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:56,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:56,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:56,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:56,781 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:57,061 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2024-11-28 03:10:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:57,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-28 03:10:57,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:57,067 INFO L225 Difference]: With dead ends: 74 [2024-11-28 03:10:57,067 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 03:10:57,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:57,071 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 18 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:57,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 65 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:10:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 03:10:57,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2024-11-28 03:10:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2024-11-28 03:10:57,090 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 36 [2024-11-28 03:10:57,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:57,091 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2024-11-28 03:10:57,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:57,091 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2024-11-28 03:10:57,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:10:57,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:57,096 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:57,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:10:57,097 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:57,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:57,098 INFO L85 PathProgramCache]: Analyzing trace with hash -108446775, now seen corresponding path program 1 times [2024-11-28 03:10:57,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:57,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964137255] [2024-11-28 03:10:57,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:57,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:57,452 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:10:57,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:57,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964137255] [2024-11-28 03:10:57,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964137255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:57,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:57,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:10:57,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904935036] [2024-11-28 03:10:57,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:57,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:10:57,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:57,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:10:57,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:57,458 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:57,714 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2024-11-28 03:10:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:10:57,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2024-11-28 03:10:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:57,716 INFO L225 Difference]: With dead ends: 76 [2024-11-28 03:10:57,717 INFO L226 Difference]: Without dead ends: 45 [2024-11-28 03:10:57,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:10:57,718 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:57,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 83 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:10:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-28 03:10:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2024-11-28 03:10:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:10:57,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-11-28 03:10:57,743 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 40 [2024-11-28 03:10:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-11-28 03:10:57,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:10:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-11-28 03:10:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:10:57,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:57,749 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:10:57,749 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:57,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:57,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1188491981, now seen corresponding path program 1 times [2024-11-28 03:10:57,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:57,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956661650] [2024-11-28 03:10:57,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:57,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:10:57,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1632503211] [2024-11-28 03:10:57,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:57,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:57,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:57,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:57,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:10:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:58,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-28 03:10:58,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:58,758 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 11 treesize of output 7 [2024-11-28 03:10:59,977 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-11-28 03:10:59,977 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 2 case distinctions, treesize of input 30 treesize of output 18 [2024-11-28 03:11:00,213 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 11 treesize of output 7 [2024-11-28 03:11:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:11:00,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:27,458 WARN L286 SmtUtils]: Spent 7.94s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:11:36,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:36,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956661650] [2024-11-28 03:11:36,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:11:36,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632503211] [2024-11-28 03:11:36,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632503211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:36,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:11:36,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-11-28 03:11:36,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819969157] [2024-11-28 03:11:36,574 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:36,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:11:36,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:36,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:11:36,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 03:11:36,577 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 23 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 21 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:11:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:38,001 INFO L93 Difference]: Finished difference Result 109 states and 135 transitions. [2024-11-28 03:11:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 03:11:38,002 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 21 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-28 03:11:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:38,004 INFO L225 Difference]: With dead ends: 109 [2024-11-28 03:11:38,004 INFO L226 Difference]: Without dead ends: 82 [2024-11-28 03:11:38,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 23.6s TimeCoverageRelationStatistics Valid=231, Invalid=1409, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 03:11:38,007 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 74 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:38,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 224 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:11:38,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-28 03:11:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2024-11-28 03:11:38,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 60 states have internal predecessors, (73), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:11:38,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 83 transitions. [2024-11-28 03:11:38,027 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 83 transitions. Word has length 42 [2024-11-28 03:11:38,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:38,027 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 83 transitions. [2024-11-28 03:11:38,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 21 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:11:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 83 transitions. [2024-11-28 03:11:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:11:38,029 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:38,029 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:38,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:11:38,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:38,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:38,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:38,236 INFO L85 PathProgramCache]: Analyzing trace with hash 167423627, now seen corresponding path program 1 times [2024-11-28 03:11:38,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:38,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439452503] [2024-11-28 03:11:38,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:38,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:38,334 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 03:11:38,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:38,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439452503] [2024-11-28 03:11:38,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439452503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:38,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:38,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:11:38,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201032844] [2024-11-28 03:11:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:38,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:11:38,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:38,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:11:38,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:11:38,338 INFO L87 Difference]: Start difference. First operand 69 states and 83 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:11:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:38,441 INFO L93 Difference]: Finished difference Result 97 states and 117 transitions. [2024-11-28 03:11:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:11:38,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-28 03:11:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:38,443 INFO L225 Difference]: With dead ends: 97 [2024-11-28 03:11:38,443 INFO L226 Difference]: Without dead ends: 72 [2024-11-28 03:11:38,443 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 03:11:38,445 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:38,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:11:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-28 03:11:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2024-11-28 03:11:38,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 62 states have internal predecessors, (75), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 03:11:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 85 transitions. [2024-11-28 03:11:38,477 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 85 transitions. Word has length 42 [2024-11-28 03:11:38,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:38,481 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 85 transitions. [2024-11-28 03:11:38,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-28 03:11:38,481 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2024-11-28 03:11:38,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 03:11:38,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:38,487 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:38,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:11:38,488 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:38,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash -843693623, now seen corresponding path program 1 times [2024-11-28 03:11:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:38,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615201664] [2024-11-28 03:11:38,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:39,178 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 03:11:39,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:39,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615201664] [2024-11-28 03:11:39,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615201664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:39,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360702608] [2024-11-28 03:11:39,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:39,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:39,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:39,182 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:39,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:11:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:39,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:11:39,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 03:11:39,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:39,962 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:11:39,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360702608] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:39,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:39,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 11] total 23 [2024-11-28 03:11:39,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428889849] [2024-11-28 03:11:39,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:39,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:11:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:39,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:11:39,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:11:39,966 INFO L87 Difference]: Start difference. First operand 71 states and 85 transitions. Second operand has 23 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:11:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:41,371 INFO L93 Difference]: Finished difference Result 290 states and 365 transitions. [2024-11-28 03:11:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 03:11:41,373 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 42 [2024-11-28 03:11:41,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:41,377 INFO L225 Difference]: With dead ends: 290 [2024-11-28 03:11:41,378 INFO L226 Difference]: Without dead ends: 232 [2024-11-28 03:11:41,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 73 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=340, Invalid=1142, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:11:41,380 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 211 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:41,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 411 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 03:11:41,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-28 03:11:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 126. [2024-11-28 03:11:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 112 states have internal predecessors, (136), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:11:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 154 transitions. [2024-11-28 03:11:41,442 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 154 transitions. Word has length 42 [2024-11-28 03:11:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:41,446 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 154 transitions. [2024-11-28 03:11:41,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 17 states have internal predecessors, (50), 6 states have call successors, (7), 3 states have call predecessors, (7), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 03:11:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 154 transitions. [2024-11-28 03:11:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:11:41,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:41,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:41,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:11:41,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:41,654 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:41,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2006120657, now seen corresponding path program 2 times [2024-11-28 03:11:41,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:41,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425377951] [2024-11-28 03:11:41,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:11:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:41,691 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:11:41,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:41,880 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:11:41,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:41,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425377951] [2024-11-28 03:11:41,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425377951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:41,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125754646] [2024-11-28 03:11:41,881 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:11:41,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:41,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:41,884 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:41,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:11:41,993 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:11:41,993 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:41,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:11:41,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:11:42,121 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:42,239 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:11:42,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125754646] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:42,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:42,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2024-11-28 03:11:42,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437379293] [2024-11-28 03:11:42,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:42,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:11:42,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:42,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:11:42,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:11:42,244 INFO L87 Difference]: Start difference. First operand 126 states and 154 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:11:42,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:42,728 INFO L93 Difference]: Finished difference Result 209 states and 262 transitions. [2024-11-28 03:11:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:11:42,730 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-28 03:11:42,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:42,733 INFO L225 Difference]: With dead ends: 209 [2024-11-28 03:11:42,734 INFO L226 Difference]: Without dead ends: 169 [2024-11-28 03:11:42,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:11:42,735 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 41 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:42,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 187 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:11:42,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-28 03:11:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 141. [2024-11-28 03:11:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 125 states have (on average 1.24) internal successors, (155), 127 states have internal predecessors, (155), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:11:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 173 transitions. [2024-11-28 03:11:42,770 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 173 transitions. Word has length 44 [2024-11-28 03:11:42,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:42,770 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 173 transitions. [2024-11-28 03:11:42,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:11:42,771 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 173 transitions. [2024-11-28 03:11:42,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:11:42,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:42,772 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:42,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:11:42,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:42,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:42,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:42,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2139822299, now seen corresponding path program 3 times [2024-11-28 03:11:42,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:42,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298037956] [2024-11-28 03:11:42,978 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:11:42,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:43,037 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 03:11:43,037 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:43,188 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:11:43,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:43,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298037956] [2024-11-28 03:11:43,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298037956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:43,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:43,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:11:43,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295027777] [2024-11-28 03:11:43,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:43,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:11:43,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:43,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:11:43,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:11:43,194 INFO L87 Difference]: Start difference. First operand 141 states and 173 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:11:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:43,446 INFO L93 Difference]: Finished difference Result 259 states and 310 transitions. [2024-11-28 03:11:43,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:43,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-11-28 03:11:43,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:43,449 INFO L225 Difference]: With dead ends: 259 [2024-11-28 03:11:43,449 INFO L226 Difference]: Without dead ends: 153 [2024-11-28 03:11:43,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:11:43,456 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:43,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 135 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:11:43,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-28 03:11:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 141. [2024-11-28 03:11:43,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 125 states have (on average 1.224) internal successors, (153), 127 states have internal predecessors, (153), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:11:43,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 171 transitions. [2024-11-28 03:11:43,497 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 171 transitions. Word has length 48 [2024-11-28 03:11:43,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:43,498 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 171 transitions. [2024-11-28 03:11:43,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 03:11:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 171 transitions. [2024-11-28 03:11:43,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 03:11:43,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:43,500 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:43,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:11:43,501 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:43,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:43,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1000789861, now seen corresponding path program 4 times [2024-11-28 03:11:43,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:43,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055819232] [2024-11-28 03:11:43,502 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:11:43,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:43,518 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:11:43,519 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:11:43,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:43,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055819232] [2024-11-28 03:11:43,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055819232] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:43,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10291126] [2024-11-28 03:11:43,669 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 03:11:43,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:43,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:43,673 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:43,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:11:43,760 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 03:11:43,760 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:43,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:11:43,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:11:43,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:11:44,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10291126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:44,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:44,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-28 03:11:44,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229210880] [2024-11-28 03:11:44,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:44,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:11:44,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:44,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:11:44,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:11:44,014 INFO L87 Difference]: Start difference. First operand 141 states and 171 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:11:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:44,355 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2024-11-28 03:11:44,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:11:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-11-28 03:11:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:44,357 INFO L225 Difference]: With dead ends: 165 [2024-11-28 03:11:44,357 INFO L226 Difference]: Without dead ends: 146 [2024-11-28 03:11:44,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 89 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:11:44,359 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:44,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 83 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:11:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-28 03:11:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 135. [2024-11-28 03:11:44,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 119 states have (on average 1.2100840336134453) internal successors, (144), 121 states have internal predecessors, (144), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:11:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 162 transitions. [2024-11-28 03:11:44,384 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 162 transitions. Word has length 48 [2024-11-28 03:11:44,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:44,384 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 162 transitions. [2024-11-28 03:11:44,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:11:44,385 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 162 transitions. [2024-11-28 03:11:44,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-28 03:11:44,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:44,386 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:44,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:11:44,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:44,587 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:44,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:44,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1406522207, now seen corresponding path program 5 times [2024-11-28 03:11:44,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:44,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400658474] [2024-11-28 03:11:44,588 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:11:44,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:44,604 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-28 03:11:44,604 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:44,676 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:11:44,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:11:44,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400658474] [2024-11-28 03:11:44,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400658474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:11:44,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612421620] [2024-11-28 03:11:44,677 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 03:11:44,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:44,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:44,680 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:11:44,758 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2024-11-28 03:11:44,758 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:11:44,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:11:44,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:44,826 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:11:44,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:11:44,916 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-28 03:11:44,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612421620] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:11:44,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:11:44,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-11-28 03:11:44,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396517309] [2024-11-28 03:11:44,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:11:44,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:11:44,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:11:44,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:11:44,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:11:44,919 INFO L87 Difference]: Start difference. First operand 135 states and 162 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:11:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:45,160 INFO L93 Difference]: Finished difference Result 223 states and 259 transitions. [2024-11-28 03:11:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:11:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2024-11-28 03:11:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:45,162 INFO L225 Difference]: With dead ends: 223 [2024-11-28 03:11:45,162 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 03:11:45,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:11:45,164 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:45,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 108 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:11:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 03:11:45,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2024-11-28 03:11:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 93 states have (on average 1.1290322580645162) internal successors, (105), 94 states have internal predecessors, (105), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 03:11:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2024-11-28 03:11:45,182 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 50 [2024-11-28 03:11:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:45,182 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2024-11-28 03:11:45,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:11:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2024-11-28 03:11:45,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 03:11:45,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:45,183 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:45,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:11:45,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 03:11:45,387 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:45,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1708116860, now seen corresponding path program 1 times [2024-11-28 03:11:45,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:11:45,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944096981] [2024-11-28 03:11:45,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:45,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:11:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:11:45,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926550173] [2024-11-28 03:11:45,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:45,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:11:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:45,455 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:11:45,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:11:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:45,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-28 03:11:45,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:45,862 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 11 treesize of output 7 [2024-11-28 03:11:46,514 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-11-28 03:11:46,514 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 2 case distinctions, treesize of input 30 treesize of output 18 [2024-11-28 03:11:46,657 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 11 treesize of output 7 [2024-11-28 03:11:47,301 INFO L349 Elim1Store]: treesize reduction 25, result has 30.6 percent of original size [2024-11-28 03:11:47,302 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 2 case distinctions, treesize of input 30 treesize of output 18 [2024-11-28 03:11:47,409 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 11 treesize of output 7 [2024-11-28 03:11:47,725 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 13 proven. 36 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-28 03:11:47,725 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:12:13,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:12:13,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944096981] [2024-11-28 03:12:13,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:12:13,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926550173] [2024-11-28 03:12:13,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926550173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:12:13,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:12:13,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-11-28 03:12:13,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766828771] [2024-11-28 03:12:13,964 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:12:13,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 03:12:13,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:12:13,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 03:12:13,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1281, Unknown=1, NotChecked=0, Total=1482 [2024-11-28 03:12:13,971 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand has 30 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 27 states have internal predecessors, (48), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:12:16,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:16,071 INFO L93 Difference]: Finished difference Result 112 states and 125 transitions. [2024-11-28 03:12:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:12:16,072 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 27 states have internal predecessors, (48), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 58 [2024-11-28 03:12:16,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:16,073 INFO L225 Difference]: With dead ends: 112 [2024-11-28 03:12:16,073 INFO L226 Difference]: Without dead ends: 62 [2024-11-28 03:12:16,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=271, Invalid=1890, Unknown=1, NotChecked=0, Total=2162 [2024-11-28 03:12:16,077 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:16,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 402 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:12:16,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-28 03:12:16,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-11-28 03:12:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 55 states have (on average 1.1454545454545455) internal successors, (63), 55 states have internal predecessors, (63), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:12:16,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2024-11-28 03:12:16,088 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 58 [2024-11-28 03:12:16,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:16,089 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2024-11-28 03:12:16,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 27 states have internal predecessors, (48), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 03:12:16,089 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2024-11-28 03:12:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 03:12:16,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:16,092 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:16,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:12:16,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:12:16,294 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:16,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 515603769, now seen corresponding path program 6 times [2024-11-28 03:12:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:12:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806357273] [2024-11-28 03:12:16,295 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:12:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:12:16,435 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 03:12:16,437 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:12:16,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633518684] [2024-11-28 03:12:16,440 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 03:12:16,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:12:16,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:12:16,447 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:12:16,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_494d0132-a5c0-49b2-b1fd-5fac20c8e886/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:12:17,062 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 03:12:17,063 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:12:17,068 WARN L254 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-28 03:12:17,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:17,269 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 11 treesize of output 7 [2024-11-28 03:12:17,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-11-28 03:12:17,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:17,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:17,791 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:17,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 30 [2024-11-28 03:12:17,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:17,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:17,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:17,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:17,956 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:17,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-28 03:12:19,330 INFO L349 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2024-11-28 03:12:19,331 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 2 case distinctions, treesize of input 187 treesize of output 172 [2024-11-28 03:12:19,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,509 INFO L349 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2024-11-28 03:12:19,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 4 select indices, 4 select index equivalence classes, 26 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 549 [2024-11-28 03:12:19,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,795 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,832 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:19,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,862 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:19,882 INFO L349 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2024-11-28 03:12:19,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 25 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 142 [2024-11-28 03:12:19,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,937 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:19,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:19,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,062 INFO L349 Elim1Store]: treesize reduction 112, result has 25.8 percent of original size [2024-11-28 03:12:20,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 176 treesize of output 162 [2024-11-28 03:12:20,562 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 117 treesize of output 95 [2024-11-28 03:12:20,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,620 INFO L349 Elim1Store]: treesize reduction 78, result has 1.3 percent of original size [2024-11-28 03:12:20,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 17 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 4 case distinctions, treesize of input 95 treesize of output 182 [2024-11-28 03:12:20,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,176 INFO L349 Elim1Store]: treesize reduction 65, result has 32.3 percent of original size [2024-11-28 03:12:21,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 114 treesize of output 212 [2024-11-28 03:12:21,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,372 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:21,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:12:21,397 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:21,398 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:12:21,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 18 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 39 [2024-11-28 03:12:24,125 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:12:24,126 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 103 treesize of output 127 [2024-11-28 03:12:24,478 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:12:24,478 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:13:18,888 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 541 treesize of output 525 [2024-11-28 03:13:19,226 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:19,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 485812599 treesize of output 474278263 [2024-11-28 03:13:42,218 WARN L286 SmtUtils]: Spent 22.96s on a formula simplification. DAG size of input: 4220 DAG size of output: 998 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 03:13:52,402 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 197 treesize of output 189 [2024-11-28 03:13:52,422 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:52,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 3563 treesize of output 3435 [2024-11-28 03:13:52,552 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 682 treesize of output 660 [2024-11-28 03:13:53,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:53,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 1665931600 treesize of output 1 [2024-11-28 03:13:53,147 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 839 treesize of output 811 [2024-11-28 03:13:53,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:13:53,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 959792389 treesize of output 1 [2024-11-28 03:13:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 51 refuted. 1 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 03:13:54,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:13:54,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806357273] [2024-11-28 03:13:54,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:13:54,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633518684] [2024-11-28 03:13:54,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633518684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:13:54,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:13:54,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 33] total 63 [2024-11-28 03:13:54,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836923394] [2024-11-28 03:13:54,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:13:54,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-28 03:13:54,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:13:54,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-28 03:13:54,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=503, Invalid=3398, Unknown=5, NotChecked=0, Total=3906 [2024-11-28 03:13:54,265 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand has 63 states, 61 states have (on average 1.7540983606557377) internal successors, (107), 61 states have internal predecessors, (107), 4 states have call successors, (6), 3 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-28 03:13:58,431 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse14 (+ |c_ULTIMATE.start_main_~#array~0#1.offset| 4)) (.cse15 (+ 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse44 (select |c_#memory_int#1| |c_ULTIMATE.start_main_~#array~0#1.base|)) (.cse16 (+ 12 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse89 (select .cse44 .cse16)) (.cse90 (select .cse44 .cse15)) (.cse94 (select .cse44 .cse14))) (let ((.cse172 (mod |c_ULTIMATE.start_main_~index1~0#1| 4294967296)) (.cse168 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~index2~0#1|) 1) 4294967296)) (.cse175 (+ (select .cse44 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| .cse89 .cse90 .cse94)) (.cse174 (* c_~ARR_SIZE~0 4)) (.cse9 (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))) (let ((.cse169 (mod |c_ULTIMATE.start_main_~index2~0#1| 4294967296)) (.cse170 (+ |c_ULTIMATE.start_main_~sum~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse9)) (.cse27 (* |c_ULTIMATE.start_main_~row~0#1| 8)) (.cse171 (* (+ (- 1) c_~ARR_SIZE~0) .cse174)) (.cse102 (= .cse175 0)) (.cse103 (= .cse175 1)) (.cse53 (< .cse168 2147483648)) (.cse115 (* .cse172 8)) (.cse173 (* .cse168 4)) (.cse63 (* |c_ULTIMATE.start_main_~row~0#1| .cse174)) (.cse28 (* |c_ULTIMATE.start_main_~column~0#1| 4))) (let ((.cse3 (select .cse44 (+ .cse63 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse28))) (.cse106 (select .cse44 (+ .cse63 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (.cse107 (select .cse44 (+ .cse63 |c_ULTIMATE.start_main_~#array~0#1.offset| 4))) (.cse60 (+ .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 34359738368) .cse173)) (.cse57 (or .cse102 .cse103 .cse53)) (.cse48 (< 2147483647 .cse172)) (.cse52 (+ .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse173)) (.cse56 (+ (- 17179869184) .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse173)) (.cse61 (< .cse172 2147483648)) (.cse1 (< c_~ARR_SIZE~0 2)) (.cse2 (not (= c_~ARR_SIZE~0 (+ |c_ULTIMATE.start_main_~row~0#1| 2)))) (.cse4 (select .cse44 (+ .cse171 |c_ULTIMATE.start_main_~#array~0#1.offset| 4))) (.cse5 (select .cse44 (+ .cse171 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (.cse26 (store .cse44 (+ .cse27 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse28) 0)) (.cse45 (+ .cse27 8 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse46 (+ .cse27 12 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse101 (= |c_ULTIMATE.start_main_~row~0#1| 0)) (.cse99 (= .cse170 1)) (.cse100 (= .cse170 0)) (.cse105 (+ |c_ULTIMATE.start_main_~row~0#1| 1)) (.cse47 (< 0 |c_ULTIMATE.start_main_~row~0#1|)) (.cse6 (not (= c_~ARR_SIZE~0 2))) (.cse109 (< .cse169 2147483648)) (.cse119 (< 2147483647 .cse169)) (.cse49 (< 2147483647 .cse168)) (.cse116 (* .cse169 4))) (and (let ((.cse0 (+ .cse3 |c_ULTIMATE.start_main_~sum~0#1| .cse4 .cse5))) (or (= .cse0 1) (= .cse0 0) .cse1 .cse2)) (or (< |c_ULTIMATE.start_main_~column~0#1| 0) .cse6 (let ((.cse17 (store .cse26 (+ .cse27 |c_ULTIMATE.start_main_~#array~0#1.offset| 4 .cse28) 0))) (let ((.cse8 (select .cse17 .cse15)) (.cse10 (select .cse17 .cse16))) (and (let ((.cse7 (+ .cse8 |c_ULTIMATE.start_main_~sum~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse9 .cse10))) (or (= .cse7 1) (= .cse7 0))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse11 (let ((.cse13 (store (store .cse17 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse13 .cse14) (select .cse13 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse13 .cse15) (select .cse13 .cse16)))) (.cse12 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse11 0) (= .cse11 1) (< 1 .cse12) (< .cse12 0)))) (< v_z_5 0))) (forall ((v_z_5 Int)) (or (forall ((v_y_5 Int)) (let ((.cse21 (* 17179869184 v_y_5))) (let ((.cse18 (let ((.cse22 (store (store .cse17 (+ (* v_z_5 17179869188) .cse21 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse22 .cse14) (select .cse22 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse22 .cse15) (select .cse22 .cse16)))) (.cse19 (+ .cse8 |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse17 (+ .cse21 |c_ULTIMATE.start_main_~#array~0#1.offset| 73786976260478468100) |c_ULTIMATE.start_main_~num~0#1|) .cse14) .cse9 .cse10)) (.cse20 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse18 0) (= .cse19 0) (= .cse18 1) (= .cse19 1) (< 1 .cse20) (< .cse20 0))))) (< 4294967295 v_z_5) (< v_z_5 0))) (or (forall ((v_z_5 Int) (v_y_5 Int)) (let ((.cse23 (let ((.cse25 (store (store .cse17 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse25 .cse14) (select .cse25 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse25 .cse15) (select .cse25 .cse16)))) (.cse24 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (= .cse23 0) (= .cse23 1) (< v_z_5 0) (< 1 .cse24) (< .cse24 0)))) (= (+ (select .cse17 .cse14) .cse8 |c_ULTIMATE.start_main_~sum~0#1| .cse9 .cse10) 0)))))) (or .cse6 (let ((.cse30 (store (store .cse44 .cse45 0) .cse46 0))) (let ((.cse29 (select .cse30 .cse15)) (.cse31 (select .cse30 .cse16))) (and (or (= (+ .cse29 |c_ULTIMATE.start_main_~sum~0#1| (select .cse30 .cse14) .cse9 .cse31) 0) (forall ((v_z_5 Int) (v_y_5 Int)) (let ((.cse32 (let ((.cse34 (store (store .cse30 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse34 .cse15) |c_ULTIMATE.start_main_~sum~0#1| (select .cse34 .cse16) (select .cse34 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse34 .cse14)))) (.cse33 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (= .cse32 1) (= .cse32 0) (< v_z_5 0) (< 1 .cse33) (< .cse33 0))))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (< v_z_5 0) (forall ((v_y_5 Int)) (let ((.cse35 (let ((.cse37 (store (store .cse30 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse37 .cse15) |c_ULTIMATE.start_main_~sum~0#1| (select .cse37 .cse16) (select .cse37 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse37 .cse14)))) (.cse36 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse35 1) (= .cse35 0) (< 1 .cse36) (< .cse36 0)))))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse42 (* 17179869184 v_y_5))) (let ((.cse38 (+ .cse29 (select (store .cse30 (+ .cse42 |c_ULTIMATE.start_main_~#array~0#1.offset| 73786976260478468100) |c_ULTIMATE.start_main_~num~0#1|) .cse14) |c_ULTIMATE.start_main_~sum~0#1| .cse9 .cse31)) (.cse39 (let ((.cse41 (store (store .cse30 (+ (* v_z_5 17179869188) .cse42 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse41 .cse15) |c_ULTIMATE.start_main_~sum~0#1| (select .cse41 .cse16) (select .cse41 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse41 .cse14)))) (.cse40 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse38 0) (= .cse38 1) (= .cse39 1) (= .cse39 0) (< 1 .cse40) (< .cse40 0))))) (< v_z_5 0))) (let ((.cse43 (+ .cse29 |c_ULTIMATE.start_main_~sum~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse9 .cse31))) (or (= .cse43 0) (= .cse43 1)))))) .cse47) (or .cse6 (and (or .cse48 (and (let ((.cse50 (let ((.cse51 (store .cse44 .cse52 .cse9))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse51 .cse15) (select .cse51 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse51 .cse16) (select .cse51 .cse14))))) (or .cse49 (= .cse50 0) (= .cse50 1))) (let ((.cse54 (let ((.cse55 (store .cse44 .cse56 .cse9))) (+ (select .cse55 .cse14) (select .cse55 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse55 .cse15) (select .cse55 .cse16))))) (or .cse53 (= .cse54 1) (= .cse54 0))))) (or (and .cse57 (let ((.cse58 (let ((.cse59 (store .cse44 .cse60 .cse9))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse59 .cse14) (select .cse59 .cse16) (select .cse59 .cse15) (select .cse59 |c_ULTIMATE.start_main_~#array~0#1.offset|))))) (or .cse49 (= .cse58 1) (= .cse58 0)))) .cse61))) (let ((.cse62 (+ .cse3 (select .cse44 (+ .cse63 |c_ULTIMATE.start_main_~#array~0#1.offset| 4 .cse28)) |c_ULTIMATE.start_main_~sum~0#1| .cse4 .cse5))) (or (= .cse62 1) (= .cse62 0) .cse1 .cse2)) (or .cse6 (and (or .cse61 (and (let ((.cse64 (let ((.cse65 (store .cse44 .cse60 |c_ULTIMATE.start_main_#t~ite12#1|))) (+ (select .cse65 .cse14) (select .cse65 .cse15) (select .cse65 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse65 .cse16))))) (or (= .cse64 0) .cse49 (= .cse64 1))) .cse57)) (or .cse48 (and (let ((.cse66 (let ((.cse67 (store .cse44 .cse52 |c_ULTIMATE.start_main_#t~ite12#1|))) (+ (select .cse67 .cse15) (select .cse67 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse67 .cse14) (select .cse67 .cse16))))) (or (= 1 .cse66) .cse49 (= 0 .cse66))) (let ((.cse68 (let ((.cse69 (store .cse44 .cse56 |c_ULTIMATE.start_main_#t~ite12#1|))) (+ (select .cse69 .cse15) |c_ULTIMATE.start_main_~sum~0#1| (select .cse69 .cse16) (select .cse69 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse69 .cse14))))) (or (= .cse68 0) .cse53 (= .cse68 1))))))) (or .cse6 (let ((.cse73 (select .cse26 .cse16)) (.cse74 (select .cse26 .cse15))) (and (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse70 (let ((.cse72 (store (store .cse26 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse72 .cse16) (select .cse72 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse72 .cse14) (select .cse72 .cse15)))) (.cse71 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse70 0) (= .cse70 1) (< 1 .cse71) (< .cse71 0)))) (< v_z_5 0))) (or (= (+ .cse73 (select .cse26 .cse14) |c_ULTIMATE.start_main_~sum~0#1| .cse9 .cse74) 0) (forall ((v_z_5 Int) (v_y_5 Int)) (let ((.cse75 (let ((.cse77 (store (store .cse26 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse77 .cse16) (select .cse77 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse77 .cse14) (select .cse77 .cse15)))) (.cse76 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse75 0) (= .cse75 1) (< 4294967295 v_z_5) (= 4294967295 v_z_5) (< v_z_5 0) (< 1 .cse76) (< .cse76 0))))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse81 (* 17179869184 v_y_5))) (let ((.cse78 (let ((.cse82 (store (store .cse26 (+ (* v_z_5 17179869188) .cse81 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse82 .cse16) (select .cse82 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse82 .cse14) (select .cse82 .cse15)))) (.cse79 (+ .cse73 |c_ULTIMATE.start_main_~sum~0#1| .cse9 (select (store .cse26 (+ .cse81 |c_ULTIMATE.start_main_~#array~0#1.offset| 73786976260478468100) |c_ULTIMATE.start_main_~num~0#1|) .cse14) .cse74)) (.cse80 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse78 0) (= .cse78 1) (= .cse79 1) (= .cse79 0) (< 1 .cse80) (< .cse80 0))))) (< v_z_5 0))) (let ((.cse83 (+ .cse73 |c_ULTIMATE.start_main_~sum~0#1| |c_ULTIMATE.start_main_~num~0#1| .cse9 .cse74))) (or (= .cse83 0) (= .cse83 1))))) (< |c_ULTIMATE.start_main_~column~0#1| 1)) (<= c_~ARR_SIZE~0 32767) (or (and (forall ((v_z_5 Int)) (or (forall ((v_y_5 Int)) (let ((.cse88 (* 17179869184 v_y_5))) (let ((.cse84 (+ |c_ULTIMATE.start_main_~sum~0#1| .cse89 .cse90 (select (store .cse44 (+ .cse88 |c_ULTIMATE.start_main_~#array~0#1.offset| 73786976260478468100) |c_ULTIMATE.start_main_~num~0#1|) .cse14) .cse9)) (.cse86 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296))) (.cse85 (let ((.cse87 (store (store .cse44 (+ (* v_z_5 17179869188) .cse88 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse87 .cse15) (select .cse87 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse87 .cse14) (select .cse87 .cse16))))) (or (= .cse84 1) (= .cse84 0) (= .cse85 0) (< 1 .cse86) (< .cse86 0) (= .cse85 1))))) (< 4294967295 v_z_5) (< v_z_5 0))) (or (forall ((v_z_5 Int) (v_y_5 Int)) (let ((.cse92 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296))) (.cse91 (let ((.cse93 (store (store .cse44 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse93 .cse15) (select .cse93 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse93 .cse14) (select .cse93 .cse16))))) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (= .cse91 0) (< v_z_5 0) (< 1 .cse92) (< .cse92 0) (= .cse91 1)))) (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse89 .cse90 .cse9 .cse94) 0)) (let ((.cse95 (+ |c_ULTIMATE.start_main_~sum~0#1| .cse89 .cse90 |c_ULTIMATE.start_main_~num~0#1| .cse9))) (or (= .cse95 0) (= .cse95 1))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse97 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296))) (.cse96 (let ((.cse98 (store (store .cse44 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse98 .cse15) (select .cse98 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse98 .cse14) (select .cse98 .cse16))))) (or (= .cse96 0) (< 1 .cse97) (< .cse97 0) (= .cse96 1)))) (< v_z_5 0)))) .cse6) (or .cse6 .cse47 (and (or .cse99 .cse100) .cse101)) (or .cse102 .cse103 .cse6) (let ((.cse104 (+ .cse106 |c_ULTIMATE.start_main_~sum~0#1| .cse107))) (or (= .cse104 1) (< .cse105 c_~ARR_SIZE~0) .cse1 (= .cse104 0))) (let ((.cse108 (+ .cse106 |c_ULTIMATE.start_main_~sum~0#1| .cse4 .cse107 .cse5))) (or (= .cse108 0) (= .cse108 1) .cse1 .cse2)) (or .cse6 (and (or .cse109 (and (or .cse48 (let ((.cse112 (store .cse44 (+ (- 17179869184) .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse116) |c_ULTIMATE.start_main_#t~ite10#1|))) (and (let ((.cse110 (let ((.cse111 (store .cse112 .cse56 .cse9))) (+ (select .cse111 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse111 .cse15) (select .cse111 .cse14) (select .cse111 |c_ULTIMATE.start_main_~#array~0#1.offset|))))) (or (= .cse110 0) (= .cse110 1) .cse53)) (let ((.cse113 (let ((.cse114 (store .cse112 .cse52 .cse9))) (+ (select .cse114 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse114 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse114 .cse15) (select .cse114 .cse14))))) (or .cse49 (= .cse113 1) (= .cse113 0)))))) (or (and (let ((.cse117 (let ((.cse118 (store (store .cse44 (+ (- 51539607552) .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse116) |c_ULTIMATE.start_main_#t~ite10#1|) .cse60 .cse9))) (+ (select .cse118 .cse14) (select .cse118 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse118 .cse15) (select .cse118 .cse16))))) (or (= .cse117 1) .cse49 (= .cse117 0))) .cse57) .cse61))) (or .cse119 (and (or .cse48 (let ((.cse122 (store .cse44 (+ .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse116) |c_ULTIMATE.start_main_#t~ite10#1|))) (and (let ((.cse120 (let ((.cse121 (store .cse122 .cse52 .cse9))) (+ (select .cse121 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse121 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse121 .cse14) (select .cse121 .cse15))))) (or (= .cse120 1) .cse49 (= .cse120 0))) (let ((.cse123 (let ((.cse124 (store .cse122 .cse56 .cse9))) (+ (select .cse124 .cse15) (select .cse124 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse124 .cse16) (select .cse124 .cse14))))) (or (= .cse123 1) (= .cse123 0) .cse53))))) (let ((.cse125 (let ((.cse126 (store .cse44 (+ .cse115 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 34359738368) .cse116) |c_ULTIMATE.start_main_#t~ite10#1|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse126 .cse14) (select .cse126 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse126 .cse15) (select .cse126 .cse16))))) (or (= .cse125 1) (= .cse125 0) .cse61)))))) (let ((.cse127 (+ |c_ULTIMATE.start_main_~sum~0#1| .cse4 .cse5))) (or (= 1 .cse127) (= 0 .cse127) .cse1 .cse2)) (or .cse6 (let ((.cse131 (store (store .cse44 (+ .cse27 |c_ULTIMATE.start_main_~#array~0#1.offset|) 0) (+ .cse27 |c_ULTIMATE.start_main_~#array~0#1.offset| 4) 0))) (let ((.cse132 (select .cse131 .cse15)) (.cse133 (select .cse131 .cse16))) (and (or (forall ((v_z_5 Int) (v_y_5 Int)) (let ((.cse128 (let ((.cse130 (store (store .cse131 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse130 .cse15) (select .cse130 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse130 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse130 .cse14)))) (.cse129 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (= .cse128 1) (= .cse128 0) (< v_z_5 0) (< 1 .cse129) (< .cse129 0)))) (= (+ .cse132 |c_ULTIMATE.start_main_~sum~0#1| (select .cse131 .cse14) .cse133 .cse9) 0)) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse134 (let ((.cse136 (store (store .cse131 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse136 .cse15) (select .cse136 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse136 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse136 .cse14)))) (.cse135 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse134 1) (= .cse134 0) (< 1 .cse135) (< .cse135 0)))) (< v_z_5 0))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (forall ((v_y_5 Int)) (let ((.cse141 (* 17179869184 v_y_5))) (let ((.cse137 (+ .cse132 |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse131 (+ .cse141 |c_ULTIMATE.start_main_~#array~0#1.offset| 73786976260478468100) |c_ULTIMATE.start_main_~num~0#1|) .cse14) .cse133 .cse9)) (.cse138 (let ((.cse140 (store (store .cse131 (+ (* v_z_5 17179869188) .cse141 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse140 .cse15) (select .cse140 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse140 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse140 .cse14)))) (.cse139 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296)))) (or (= .cse137 1) (= .cse137 0) (= .cse138 1) (= .cse138 0) (< 1 .cse139) (< .cse139 0))))) (< v_z_5 0))) (let ((.cse142 (+ .cse132 |c_ULTIMATE.start_main_~sum~0#1| .cse133 |c_ULTIMATE.start_main_~num~0#1| .cse9))) (or (= .cse142 1) (= .cse142 0))))))) (or .cse6 (let ((.cse144 (store (store .cse26 .cse45 0) .cse46 0))) (let ((.cse143 (select .cse144 .cse16)) (.cse145 (select .cse144 .cse15))) (and (or (= (+ |c_ULTIMATE.start_main_~sum~0#1| .cse143 (select .cse144 .cse14) .cse9 .cse145) 0) (forall ((v_z_5 Int) (v_y_5 Int)) (let ((.cse147 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296))) (.cse146 (let ((.cse148 (store (store .cse144 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse148 .cse15) (select .cse148 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse148 .cse16) (select .cse148 .cse14))))) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (= .cse146 1) (< v_z_5 0) (< 1 .cse147) (< .cse147 0) (= .cse146 0))))) (let ((.cse149 (+ |c_ULTIMATE.start_main_~sum~0#1| .cse143 |c_ULTIMATE.start_main_~num~0#1| .cse9 .cse145))) (or (= .cse149 0) (= .cse149 1))) (forall ((v_z_5 Int)) (or (forall ((v_y_5 Int)) (let ((.cse154 (* 17179869184 v_y_5))) (let ((.cse150 (+ (select (store .cse144 (+ .cse154 |c_ULTIMATE.start_main_~#array~0#1.offset| 73786976260478468100) |c_ULTIMATE.start_main_~num~0#1|) .cse14) |c_ULTIMATE.start_main_~sum~0#1| .cse143 .cse9 .cse145)) (.cse152 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296))) (.cse151 (let ((.cse153 (store (store .cse144 (+ (* v_z_5 17179869188) .cse154 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse153 .cse15) (select .cse153 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse153 .cse16) (select .cse153 .cse14))))) (or (= .cse150 0) (= .cse150 1) (= .cse151 1) (< 1 .cse152) (< .cse152 0) (= .cse151 0))))) (< 4294967295 v_z_5) (< v_z_5 0))) (forall ((v_z_5 Int)) (or (< 4294967295 v_z_5) (= 4294967295 v_z_5) (< v_z_5 0) (forall ((v_y_5 Int)) (let ((.cse156 (+ (* 4294967295 v_z_5) (* v_y_5 4294967296))) (.cse155 (let ((.cse157 (store (store .cse144 (+ (* v_z_5 17179869188) (* 17179869184 v_y_5) 8 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~num~0#1|) (+ 12 (* v_z_5 12) |c_ULTIMATE.start_main_~#array~0#1.offset|) .cse9))) (+ (select .cse157 .cse15) (select .cse157 |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse157 .cse16) (select .cse157 .cse14))))) (or (= .cse155 1) (< 1 .cse156) (< .cse156 0) (= .cse155 0))))))))) .cse47) (or .cse6 (not (= |c_assume_abort_if_not_#in~cond| 0))) (or .cse6 (let ((.cse158 (+ (* |c_ULTIMATE.start_main_~row~0#1| 2) |c_ULTIMATE.start_main_~column~0#1|))) (and (or (= .cse158 2) .cse101) (let ((.cse159 (= .cse158 0)) (.cse160 (= .cse105 0))) (or (and .cse100 .cse159) (and .cse99 .cse159) (and .cse99 .cse160) (and .cse160 .cse100))))) .cse47) (or .cse6 (let ((.cse163 (* 8 .cse168)) (.cse164 (+ (* 12 .cse168) |c_ULTIMATE.start_main_~#array~0#1.offset|))) (and (let ((.cse161 (let ((.cse162 (store (store .cse44 (+ (- 17179869184) .cse163 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse116) |c_ULTIMATE.start_main_~num~0#1|) .cse164 .cse9))) (+ (select .cse162 .cse14) (select .cse162 .cse16) |c_ULTIMATE.start_main_~sum~0#1| (select .cse162 .cse15) (select .cse162 |c_ULTIMATE.start_main_~#array~0#1.offset|))))) (or .cse109 (= .cse161 1) (= .cse161 0))) (or .cse119 (and (let ((.cse165 (+ (select (store .cse44 (+ .cse163 |c_ULTIMATE.start_main_~#array~0#1.offset| (- 34359738368) .cse116) |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| .cse89 .cse90 .cse94))) (or .cse53 (= .cse165 0) (= .cse165 1))) (let ((.cse166 (let ((.cse167 (store (store .cse44 (+ .cse163 |c_ULTIMATE.start_main_~#array~0#1.offset| .cse116) |c_ULTIMATE.start_main_~num~0#1|) .cse164 .cse9))) (+ (select .cse167 .cse14) |c_ULTIMATE.start_main_~sum~0#1| (select .cse167 |c_ULTIMATE.start_main_~#array~0#1.offset|) (select .cse167 .cse15) (select .cse167 .cse16))))) (or (= .cse166 0) .cse49 (= .cse166 1)))))))))))))) is different from true [2024-11-28 03:19:22,609 WARN L286 SmtUtils]: Spent 4.97m on a formula simplification. DAG size of input: 360 DAG size of output: 310 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:19:25,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:19:30,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:19:34,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:19:38,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:19:39,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:19:40,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-28 03:22:22,299 WARN L286 SmtUtils]: Spent 2.44m on a formula simplification. DAG size of input: 221 DAG size of output: 198 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:23:23,151 WARN L286 SmtUtils]: Spent 54.31s on a formula simplification. DAG size of input: 307 DAG size of output: 270 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:23:27,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1]