./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a87b1445829ed3e5d4b1e8d4b5847d1f5634c4a1659432e4da11a1afd44c4303 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:00:04,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:00:04,554 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 11:00:04,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:00:04,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:00:04,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:00:04,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:00:04,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:00:04,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:00:04,579 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:00:04,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:00:04,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:00:04,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:00:04,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:00:04,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:00:04,581 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:00:04,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:04,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:04,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:00:04,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:00:04,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:00:04,583 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_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a87b1445829ed3e5d4b1e8d4b5847d1f5634c4a1659432e4da11a1afd44c4303 [2024-12-02 11:00:04,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:00:04,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:00:04,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:00:04,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:00:04,811 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:00:04,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i [2024-12-02 11:00:07,447 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/f76f2c9c3/cab80c8690a84ba08c5bca64ea7008f5/FLAGcb5e5fbc8 [2024-12-02 11:00:07,674 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:00:07,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i [2024-12-02 11:00:07,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/f76f2c9c3/cab80c8690a84ba08c5bca64ea7008f5/FLAGcb5e5fbc8 [2024-12-02 11:00:08,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/f76f2c9c3/cab80c8690a84ba08c5bca64ea7008f5 [2024-12-02 11:00:08,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:00:08,038 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:00:08,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:00:08,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:00:08,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:00:08,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49015c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08, skipping insertion in model container [2024-12-02 11:00:08,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,060 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:00:08,184 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_d664389a-7139-44eb-82c8-ff8542189f80/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i[915,928] [2024-12-02 11:00:08,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:00:08,247 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:00:08,254 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_d664389a-7139-44eb-82c8-ff8542189f80/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i[915,928] [2024-12-02 11:00:08,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:00:08,292 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:00:08,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08 WrapperNode [2024-12-02 11:00:08,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:00:08,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:00:08,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:00:08,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:00:08,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,333 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2024-12-02 11:00:08,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:00:08,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:00:08,334 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:00:08,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:00:08,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,344 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,356 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:00:08,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,363 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:00:08,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:00:08,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:00:08,374 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:00:08,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (1/1) ... [2024-12-02 11:00:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:00:08,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:00:08,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:00:08,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:00:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:00:08,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:00:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:00:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:00:08,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:00:08,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:00:08,506 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:00:08,508 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:00:08,769 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:00:08,769 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:00:08,779 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:00:08,779 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:00:08,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:08 BoogieIcfgContainer [2024-12-02 11:00:08,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:00:08,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:00:08,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:00:08,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:00:08,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:00:08" (1/3) ... [2024-12-02 11:00:08,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d15843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:00:08, skipping insertion in model container [2024-12-02 11:00:08,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:00:08" (2/3) ... [2024-12-02 11:00:08,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d15843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:00:08, skipping insertion in model container [2024-12-02 11:00:08,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:00:08" (3/3) ... [2024-12-02 11:00:08,789 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-45.i [2024-12-02 11:00:08,804 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:00:08,806 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-45.i that has 2 procedures, 71 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:00:08,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:00:08,870 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;@333cb9ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:00:08,870 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:00:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 11:00:08,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:00:08,884 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:08,885 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:08,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:08,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:08,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1356687718, now seen corresponding path program 1 times [2024-12-02 11:00:08,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:08,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725492082] [2024-12-02 11:00:08,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:08,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:09,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:00:09,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:09,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725492082] [2024-12-02 11:00:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725492082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:09,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:09,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:00:09,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529880244] [2024-12-02 11:00:09,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:09,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:00:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:09,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:00:09,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:09,335 INFO L87 Difference]: Start difference. First operand has 71 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:00:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:09,422 INFO L93 Difference]: Finished difference Result 196 states and 356 transitions. [2024-12-02 11:00:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:00:09,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 157 [2024-12-02 11:00:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:09,431 INFO L225 Difference]: With dead ends: 196 [2024-12-02 11:00:09,431 INFO L226 Difference]: Without dead ends: 128 [2024-12-02 11:00:09,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:00:09,437 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 90 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:09,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 182 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:00:09,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-12-02 11:00:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 126. [2024-12-02 11:00:09,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 73 states have internal predecessors, (89), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 11:00:09,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 189 transitions. [2024-12-02 11:00:09,484 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 189 transitions. Word has length 157 [2024-12-02 11:00:09,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:09,485 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 189 transitions. [2024-12-02 11:00:09,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:00:09,486 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 189 transitions. [2024-12-02 11:00:09,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:00:09,489 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:09,489 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:09,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:00:09,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:09,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:09,490 INFO L85 PathProgramCache]: Analyzing trace with hash 486865582, now seen corresponding path program 1 times [2024-12-02 11:00:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:09,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711172067] [2024-12-02 11:00:09,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:09,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:00:23,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:23,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711172067] [2024-12-02 11:00:23,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711172067] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:23,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:23,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:00:23,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708181587] [2024-12-02 11:00:23,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:23,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:00:23,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:23,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:00:23,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:00:23,337 INFO L87 Difference]: Start difference. First operand 126 states and 189 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:00:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:23,861 INFO L93 Difference]: Finished difference Result 370 states and 540 transitions. [2024-12-02 11:00:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:00:23,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:00:23,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:23,865 INFO L225 Difference]: With dead ends: 370 [2024-12-02 11:00:23,865 INFO L226 Difference]: Without dead ends: 247 [2024-12-02 11:00:23,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:00:23,867 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 81 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:23,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 279 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:00:23,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-12-02 11:00:23,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 196. [2024-12-02 11:00:23,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 125 states have (on average 1.248) internal successors, (156), 127 states have internal predecessors, (156), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 11:00:23,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions. [2024-12-02 11:00:23,921 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 158 [2024-12-02 11:00:23,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:23,921 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 288 transitions. [2024-12-02 11:00:23,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:00:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions. [2024-12-02 11:00:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:00:23,924 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:23,924 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:23,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:00:23,925 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:23,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:23,925 INFO L85 PathProgramCache]: Analyzing trace with hash -322481044, now seen corresponding path program 1 times [2024-12-02 11:00:23,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:23,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686614165] [2024-12-02 11:00:23,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:23,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:00:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:00:25,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:00:25,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686614165] [2024-12-02 11:00:25,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686614165] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:00:25,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:00:25,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:00:25,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216004283] [2024-12-02 11:00:25,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:00:25,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:00:25,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:00:25,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:00:25,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:00:25,843 INFO L87 Difference]: Start difference. First operand 196 states and 288 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:00:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:00:26,144 INFO L93 Difference]: Finished difference Result 440 states and 638 transitions. [2024-12-02 11:00:26,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:00:26,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:00:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:00:26,146 INFO L225 Difference]: With dead ends: 440 [2024-12-02 11:00:26,146 INFO L226 Difference]: Without dead ends: 247 [2024-12-02 11:00:26,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:00:26,147 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 78 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:00:26,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 327 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:00:26,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-12-02 11:00:26,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 191. [2024-12-02 11:00:26,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 120 states have (on average 1.2416666666666667) internal successors, (149), 122 states have internal predecessors, (149), 66 states have call successors, (66), 4 states have call predecessors, (66), 4 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2024-12-02 11:00:26,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 281 transitions. [2024-12-02 11:00:26,198 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 281 transitions. Word has length 158 [2024-12-02 11:00:26,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:00:26,199 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 281 transitions. [2024-12-02 11:00:26,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:00:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 281 transitions. [2024-12-02 11:00:26,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:00:26,201 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:00:26,201 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:00:26,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:00:26,202 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:00:26,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:00:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1049166728, now seen corresponding path program 1 times [2024-12-02 11:00:26,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:00:26,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740902720] [2024-12-02 11:00:26,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:00:26,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:00:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:02:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:02:50,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:02:50,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740902720] [2024-12-02 11:02:50,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740902720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:02:50,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:02:50,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:02:50,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326202641] [2024-12-02 11:02:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:02:50,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:02:50,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:02:50,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:02:50,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:02:50,312 INFO L87 Difference]: Start difference. First operand 191 states and 281 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:02:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:02:55,486 INFO L93 Difference]: Finished difference Result 502 states and 699 transitions. [2024-12-02 11:02:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 11:02:55,486 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:02:55,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:02:55,489 INFO L225 Difference]: With dead ends: 502 [2024-12-02 11:02:55,489 INFO L226 Difference]: Without dead ends: 314 [2024-12-02 11:02:55,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:02:55,490 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 169 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:02:55,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 844 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 11:02:55,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-12-02 11:02:55,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 259. [2024-12-02 11:02:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 177 states have (on average 1.2259887005649717) internal successors, (217), 182 states have internal predecessors, (217), 72 states have call successors, (72), 9 states have call predecessors, (72), 9 states have return successors, (72), 67 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 11:02:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 361 transitions. [2024-12-02 11:02:55,546 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 361 transitions. Word has length 158 [2024-12-02 11:02:55,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:02:55,546 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 361 transitions. [2024-12-02 11:02:55,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:02:55,547 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 361 transitions. [2024-12-02 11:02:55,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:02:55,549 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:02:55,549 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:02:55,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:02:55,549 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:02:55,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:02:55,550 INFO L85 PathProgramCache]: Analyzing trace with hash 725840634, now seen corresponding path program 1 times [2024-12-02 11:02:55,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:02:55,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723480547] [2024-12-02 11:02:55,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:02:55,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:02:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:04:44,697 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 251 DAG size of output: 216 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:06:30,931 WARN L286 SmtUtils]: Spent 7.20s on a formula simplification. DAG size of input: 254 DAG size of output: 218 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:06:30,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:06:30,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:06:30,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723480547] [2024-12-02 11:06:30,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723480547] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:06:30,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:06:30,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:06:30,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473509995] [2024-12-02 11:06:30,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:06:30,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:06:30,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:06:30,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:06:30,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:06:30,985 INFO L87 Difference]: Start difference. First operand 259 states and 361 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:06:36,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:06:36,042 INFO L93 Difference]: Finished difference Result 292 states and 393 transitions. [2024-12-02 11:06:36,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 11:06:36,043 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:06:36,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:06:36,044 INFO L225 Difference]: With dead ends: 292 [2024-12-02 11:06:36,044 INFO L226 Difference]: Without dead ends: 290 [2024-12-02 11:06:36,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:06:36,045 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 136 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:06:36,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 735 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:06:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-12-02 11:06:36,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 257. [2024-12-02 11:06:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 175 states have (on average 1.2285714285714286) internal successors, (215), 180 states have internal predecessors, (215), 72 states have call successors, (72), 9 states have call predecessors, (72), 9 states have return successors, (72), 67 states have call predecessors, (72), 72 states have call successors, (72) [2024-12-02 11:06:36,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 359 transitions. [2024-12-02 11:06:36,130 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 359 transitions. Word has length 158 [2024-12-02 11:06:36,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:06:36,131 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 359 transitions. [2024-12-02 11:06:36,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:06:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 359 transitions. [2024-12-02 11:06:36,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:06:36,133 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:06:36,133 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:06:36,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:06:36,134 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:06:36,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:06:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash -792998096, now seen corresponding path program 1 times [2024-12-02 11:06:36,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:06:36,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789101582] [2024-12-02 11:06:36,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:06:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:06:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:06:46,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:06:46,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:06:46,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789101582] [2024-12-02 11:06:46,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789101582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:06:46,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:06:46,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:06:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579518883] [2024-12-02 11:06:46,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:06:46,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:06:46,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:06:46,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:06:46,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:06:46,803 INFO L87 Difference]: Start difference. First operand 257 states and 359 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:06:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:06:47,277 INFO L93 Difference]: Finished difference Result 582 states and 809 transitions. [2024-12-02 11:06:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:06:47,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:06:47,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:06:47,280 INFO L225 Difference]: With dead ends: 582 [2024-12-02 11:06:47,280 INFO L226 Difference]: Without dead ends: 336 [2024-12-02 11:06:47,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:06:47,281 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 87 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:06:47,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 283 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:06:47,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2024-12-02 11:06:47,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 328. [2024-12-02 11:06:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 216 states have (on average 1.1990740740740742) internal successors, (259), 223 states have internal predecessors, (259), 98 states have call successors, (98), 13 states have call predecessors, (98), 13 states have return successors, (98), 91 states have call predecessors, (98), 98 states have call successors, (98) [2024-12-02 11:06:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 455 transitions. [2024-12-02 11:06:47,367 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 455 transitions. Word has length 158 [2024-12-02 11:06:47,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:06:47,367 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 455 transitions. [2024-12-02 11:06:47,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:06:47,368 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 455 transitions. [2024-12-02 11:06:47,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:06:47,369 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:06:47,369 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:06:47,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:06:47,369 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:06:47,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:06:47,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1602344722, now seen corresponding path program 1 times [2024-12-02 11:06:47,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:06:47,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120751121] [2024-12-02 11:06:47,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:06:47,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:06:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:06:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:06:48,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:06:48,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120751121] [2024-12-02 11:06:48,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120751121] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:06:48,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:06:48,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:06:48,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767329780] [2024-12-02 11:06:48,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:06:48,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:06:48,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:06:48,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:06:48,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:06:48,699 INFO L87 Difference]: Start difference. First operand 328 states and 455 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:06:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:06:49,117 INFO L93 Difference]: Finished difference Result 652 states and 895 transitions. [2024-12-02 11:06:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:06:49,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:06:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:06:49,120 INFO L225 Difference]: With dead ends: 652 [2024-12-02 11:06:49,120 INFO L226 Difference]: Without dead ends: 344 [2024-12-02 11:06:49,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:06:49,122 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 82 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:06:49,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 451 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:06:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-12-02 11:06:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 288. [2024-12-02 11:06:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 192 states have (on average 1.203125) internal successors, (231), 197 states have internal predecessors, (231), 82 states have call successors, (82), 13 states have call predecessors, (82), 13 states have return successors, (82), 77 states have call predecessors, (82), 82 states have call successors, (82) [2024-12-02 11:06:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 395 transitions. [2024-12-02 11:06:49,188 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 395 transitions. Word has length 158 [2024-12-02 11:06:49,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:06:49,188 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 395 transitions. [2024-12-02 11:06:49,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:06:49,188 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 395 transitions. [2024-12-02 11:06:49,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:06:49,189 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:06:49,189 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:06:49,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:06:49,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:06:49,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:06:49,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1965936890, now seen corresponding path program 1 times [2024-12-02 11:06:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:06:49,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738359855] [2024-12-02 11:06:49,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:06:49,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:06:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:09:59,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:09:59,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:09:59,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738359855] [2024-12-02 11:09:59,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738359855] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:09:59,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:09:59,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-12-02 11:09:59,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788285277] [2024-12-02 11:09:59,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:09:59,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:09:59,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:09:59,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:09:59,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:09:59,807 INFO L87 Difference]: Start difference. First operand 288 states and 395 transitions. Second operand has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:10:05,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:10:05,273 INFO L93 Difference]: Finished difference Result 668 states and 892 transitions. [2024-12-02 11:10:05,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:10:05,274 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:10:05,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:10:05,276 INFO L225 Difference]: With dead ends: 668 [2024-12-02 11:10:05,276 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 11:10:05,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2024-12-02 11:10:05,277 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 223 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:10:05,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 635 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:10:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 11:10:05,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 348. [2024-12-02 11:10:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 244 states have (on average 1.2049180327868851) internal successors, (294), 251 states have internal predecessors, (294), 86 states have call successors, (86), 17 states have call predecessors, (86), 17 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2024-12-02 11:10:05,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 466 transitions. [2024-12-02 11:10:05,386 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 466 transitions. Word has length 158 [2024-12-02 11:10:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:10:05,387 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 466 transitions. [2024-12-02 11:10:05,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:10:05,387 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 466 transitions. [2024-12-02 11:10:05,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:10:05,388 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:10:05,388 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:10:05,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:10:05,388 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:10:05,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:10:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash -554023044, now seen corresponding path program 1 times [2024-12-02 11:10:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:10:05,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451555387] [2024-12-02 11:10:05,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:10:05,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:10:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:00,353 WARN L286 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 255 DAG size of output: 200 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-12-02 11:13:38,208 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 11:13:38,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-12-02 11:13:38,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:13:38,209 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.postprocessInterpolant(NestedInterpolantsBuilder.java:472) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.buildPredicates(NestedInterpolantsBuilder.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:292) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:227) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 58 more [2024-12-02 11:13:38,215 INFO L158 Benchmark]: Toolchain (without parser) took 810177.01ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 92.9MB in the beginning and 630.1MB in the end (delta: -537.2MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-12-02 11:13:38,215 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:13:38,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.82ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 78.5MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:13:38,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.56ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:13:38,216 INFO L158 Benchmark]: Boogie Preprocessor took 38.46ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 71.7MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:13:38,216 INFO L158 Benchmark]: RCFGBuilder took 405.99ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 51.3MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 11:13:38,216 INFO L158 Benchmark]: TraceAbstraction took 809432.59ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 50.7MB in the beginning and 630.1MB in the end (delta: -579.4MB). Peak memory consumption was 977.8MB. Max. memory is 16.1GB. [2024-12-02 11:13:38,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.82ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 78.5MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.56ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.46ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 71.7MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 405.99ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 51.3MB in the end (delta: 20.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 809432.59ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 50.7MB in the beginning and 630.1MB in the end (delta: -579.4MB). Peak memory consumption was 977.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a87b1445829ed3e5d4b1e8d4b5847d1f5634c4a1659432e4da11a1afd44c4303 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:13:40,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:13:40,117 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 11:13:40,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:13:40,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:13:40,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:13:40,148 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:13:40,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:13:40,149 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:13:40,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:13:40,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:13:40,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:13:40,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:13:40,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:13:40,149 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:13:40,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 11:13:40,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:13:40,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:13:40,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:13:40,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:13:40,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:13:40,151 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:13:40,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:13:40,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:13:40,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:13:40,153 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:13:40,153 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:13:40,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:13:40,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:13:40,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:13:40,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:13:40,153 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_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a87b1445829ed3e5d4b1e8d4b5847d1f5634c4a1659432e4da11a1afd44c4303 [2024-12-02 11:13:40,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:13:40,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:13:40,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:13:40,411 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:13:40,411 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:13:40,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i [2024-12-02 11:13:43,104 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/cdfbe7061/b6c15706a8e041cb860931ae5dd766f4/FLAG52c54a5d0 [2024-12-02 11:13:43,299 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:13:43,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i [2024-12-02 11:13:43,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/cdfbe7061/b6c15706a8e041cb860931ae5dd766f4/FLAG52c54a5d0 [2024-12-02 11:13:43,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/data/cdfbe7061/b6c15706a8e041cb860931ae5dd766f4 [2024-12-02 11:13:43,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:13:43,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:13:43,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:13:43,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:13:43,329 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:13:43,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26569014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43, skipping insertion in model container [2024-12-02 11:13:43,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:13:43,453 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_d664389a-7139-44eb-82c8-ff8542189f80/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i[915,928] [2024-12-02 11:13:43,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:13:43,527 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:13:43,535 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_d664389a-7139-44eb-82c8-ff8542189f80/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-45.i[915,928] [2024-12-02 11:13:43,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:13:43,582 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:13:43,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43 WrapperNode [2024-12-02 11:13:43,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:13:43,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:13:43,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:13:43,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:13:43,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,621 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 162 [2024-12-02 11:13:43,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:13:43,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:13:43,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:13:43,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:13:43,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,646 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 11:13:43,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,667 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:13:43,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:13:43,668 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:13:43,668 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:13:43,669 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (1/1) ... [2024-12-02 11:13:43,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:13:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:43,693 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:13:43,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:13:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:13:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:13:43,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:13:43,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:13:43,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:13:43,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:13:43,781 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:13:43,782 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:13:44,072 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 11:13:44,072 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:13:44,082 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:13:44,082 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:13:44,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:13:44 BoogieIcfgContainer [2024-12-02 11:13:44,083 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:13:44,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:13:44,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:13:44,089 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:13:44,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:13:43" (1/3) ... [2024-12-02 11:13:44,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e9a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:13:44, skipping insertion in model container [2024-12-02 11:13:44,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:13:43" (2/3) ... [2024-12-02 11:13:44,090 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150e9a19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:13:44, skipping insertion in model container [2024-12-02 11:13:44,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:13:44" (3/3) ... [2024-12-02 11:13:44,091 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-45.i [2024-12-02 11:13:44,106 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:13:44,107 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-45.i that has 2 procedures, 71 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 11:13:44,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:13:44,162 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;@390e5887, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:13:44,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:13:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 11:13:44,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:13:44,178 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:44,179 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:44,179 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:44,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:44,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1356687718, now seen corresponding path program 1 times [2024-12-02 11:13:44,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:13:44,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093032950] [2024-12-02 11:13:44,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:44,194 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:44,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:13:44,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:13:44,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 11:13:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:44,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:13:44,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:44,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:13:44,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:13:44,851 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:13:44,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093032950] [2024-12-02 11:13:44,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093032950] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:44,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:44,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 11:13:44,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19706365] [2024-12-02 11:13:44,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:44,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:13:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:13:44,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:13:44,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:44,877 INFO L87 Difference]: Start difference. First operand has 71 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 44 states have internal predecessors, (58), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:13:44,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:44,963 INFO L93 Difference]: Finished difference Result 198 states and 360 transitions. [2024-12-02 11:13:44,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:13:44,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 157 [2024-12-02 11:13:44,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:44,972 INFO L225 Difference]: With dead ends: 198 [2024-12-02 11:13:44,972 INFO L226 Difference]: Without dead ends: 130 [2024-12-02 11:13:44,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:44,978 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 15 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:44,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 191 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:44,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-12-02 11:13:45,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2024-12-02 11:13:45,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-12-02 11:13:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 193 transitions. [2024-12-02 11:13:45,025 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 193 transitions. Word has length 157 [2024-12-02 11:13:45,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:45,027 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 193 transitions. [2024-12-02 11:13:45,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:13:45,027 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 193 transitions. [2024-12-02 11:13:45,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 11:13:45,030 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:45,030 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:45,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 11:13:45,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:45,231 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:45,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash -769881704, now seen corresponding path program 1 times [2024-12-02 11:13:45,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:13:45,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608365411] [2024-12-02 11:13:45,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:45,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:45,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:13:45,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:13:45,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 11:13:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:45,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 11:13:45,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 612 proven. 30 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-12-02 11:13:45,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:13:45,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 42 proven. 30 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2024-12-02 11:13:45,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:13:45,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608365411] [2024-12-02 11:13:45,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [608365411] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:13:45,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 11:13:45,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-12-02 11:13:45,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123457285] [2024-12-02 11:13:45,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 11:13:45,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 11:13:45,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:13:45,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 11:13:45,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:13:45,921 INFO L87 Difference]: Start difference. First operand 128 states and 193 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-12-02 11:13:46,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:46,338 INFO L93 Difference]: Finished difference Result 203 states and 299 transitions. [2024-12-02 11:13:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 11:13:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 157 [2024-12-02 11:13:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:46,344 INFO L225 Difference]: With dead ends: 203 [2024-12-02 11:13:46,344 INFO L226 Difference]: Without dead ends: 139 [2024-12-02 11:13:46,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 305 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-12-02 11:13:46,346 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 112 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:46,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 141 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:13:46,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-12-02 11:13:46,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 70. [2024-12-02 11:13:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 42 states have internal predecessors, (49), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 11:13:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2024-12-02 11:13:46,361 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 99 transitions. Word has length 157 [2024-12-02 11:13:46,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:46,362 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 99 transitions. [2024-12-02 11:13:46,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 2 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-12-02 11:13:46,362 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2024-12-02 11:13:46,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:13:46,365 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:46,365 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:46,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 11:13:46,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:46,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:46,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:46,566 INFO L85 PathProgramCache]: Analyzing trace with hash 486865582, now seen corresponding path program 1 times [2024-12-02 11:13:46,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:13:46,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206890030] [2024-12-02 11:13:46,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:46,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:46,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:13:46,569 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:13:46,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 11:13:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:46,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:13:46,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:46,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-12-02 11:13:46,754 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:13:46,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 11:13:46,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206890030] [2024-12-02 11:13:46,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206890030] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:46,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:13:46,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:13:46,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954199716] [2024-12-02 11:13:46,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:46,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:13:46,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 11:13:46,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:13:46,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:46,756 INFO L87 Difference]: Start difference. First operand 70 states and 99 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:13:46,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:46,812 INFO L93 Difference]: Finished difference Result 137 states and 195 transitions. [2024-12-02 11:13:46,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:13:46,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 158 [2024-12-02 11:13:46,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:46,817 INFO L225 Difference]: With dead ends: 137 [2024-12-02 11:13:46,817 INFO L226 Difference]: Without dead ends: 70 [2024-12-02 11:13:46,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:13:46,818 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:46,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:13:46,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-12-02 11:13:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-12-02 11:13:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-12-02 11:13:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions. [2024-12-02 11:13:46,831 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 158 [2024-12-02 11:13:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:46,832 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions. [2024-12-02 11:13:46,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-12-02 11:13:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2024-12-02 11:13:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-12-02 11:13:46,835 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:46,835 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:13:46,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 11:13:47,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:47,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:47,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:47,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1971447377, now seen corresponding path program 1 times [2024-12-02 11:13:47,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:13:47,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235898508] [2024-12-02 11:13:47,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:47,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 11:13:47,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 11:13:47,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 11:13:47,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d664389a-7139-44eb-82c8-ff8542189f80/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 11:13:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:47,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 11:13:47,216 INFO L279 TraceCheckSpWp]: Computing forward predicates...