./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-71.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_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-71.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 182636466dd7ed34c7e4a19dcd08446c47e3ac770c4a66384f8d4d043f90aba6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:14:31,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:14:31,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:14:31,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:14:31,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:14:31,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:14:31,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:14:31,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:14:31,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:14:31,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:14:31,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:14:31,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:14:31,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:14:31,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:14:31,169 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:14:31,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:14:31,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:14:31,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:14:31,169 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:14:31,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:14:31,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:14:31,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:14:31,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:14:31,170 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:14:31,170 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:14:31,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:14:31,171 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:14:31,171 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:14:31,171 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:14:31,171 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:14:31,171 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:14:31,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:14:31,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:31,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:14:31,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:14:31,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:14:31,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:14:31,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:31,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:14:31,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:14:31,173 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:14:31,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:14:31,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:14:31,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:14:31,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:14:31,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:14:31,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:14:31,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:14:31,174 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_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 182636466dd7ed34c7e4a19dcd08446c47e3ac770c4a66384f8d4d043f90aba6 [2024-11-28 05:14:31,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:14:31,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:14:31,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:14:31,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:14:31,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:14:31,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-71.i [2024-11-28 05:14:34,583 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/data/4d265bdbc/8f6cab76fa2d43cea2ad3c1631f24084/FLAG1d6ad588c [2024-11-28 05:14:34,921 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:14:34,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-71.i [2024-11-28 05:14:34,939 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/data/4d265bdbc/8f6cab76fa2d43cea2ad3c1631f24084/FLAG1d6ad588c [2024-11-28 05:14:34,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/data/4d265bdbc/8f6cab76fa2d43cea2ad3c1631f24084 [2024-11-28 05:14:34,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:14:34,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:14:34,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:14:34,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:14:34,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:14:34,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:14:34" (1/1) ... [2024-11-28 05:14:34,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7396d387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:34, skipping insertion in model container [2024-11-28 05:14:34,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:14:34" (1/1) ... [2024-11-28 05:14:35,023 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:14:35,188 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_542fc9b2-ecd1-478e-91d6-9e949e0b5436/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-71.i[916,929] [2024-11-28 05:14:35,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:14:35,374 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:14:35,388 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_542fc9b2-ecd1-478e-91d6-9e949e0b5436/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-71.i[916,929] [2024-11-28 05:14:35,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:14:35,531 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:14:35,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35 WrapperNode [2024-11-28 05:14:35,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:14:35,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:14:35,535 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:14:35,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:14:35,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,658 INFO L138 Inliner]: procedures = 26, calls = 102, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 563 [2024-11-28 05:14:35,659 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:14:35,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:14:35,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:14:35,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:14:35,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,674 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,705 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]. [2024-11-28 05:14:35,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,733 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,735 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,760 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:14:35,761 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:14:35,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:14:35,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:14:35,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:35,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:35,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:14:35,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:14:35,828 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:14:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:14:35,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:14:35,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:14:35,983 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:14:35,985 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:14:37,129 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 05:14:37,129 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:14:37,155 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:14:37,156 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:14:37,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:37 BoogieIcfgContainer [2024-11-28 05:14:37,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:14:37,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:14:37,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:14:37,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:14:37,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:14:34" (1/3) ... [2024-11-28 05:14:37,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e75d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:14:37, skipping insertion in model container [2024-11-28 05:14:37,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (2/3) ... [2024-11-28 05:14:37,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e75d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:14:37, skipping insertion in model container [2024-11-28 05:14:37,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:37" (3/3) ... [2024-11-28 05:14:37,169 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-71.i [2024-11-28 05:14:37,185 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:14:37,189 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-71.i that has 2 procedures, 236 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:14:37,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:14:37,296 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;@714055f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:14:37,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:14:37,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 144 states have (on average 1.4861111111111112) internal successors, (214), 145 states have internal predecessors, (214), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 05:14:37,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-28 05:14:37,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:37,340 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:37,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:37,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:37,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1714954210, now seen corresponding path program 1 times [2024-11-28 05:14:37,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:37,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876489756] [2024-11-28 05:14:37,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:37,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:38,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 15488 trivial. 0 not checked. [2024-11-28 05:14:38,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:38,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876489756] [2024-11-28 05:14:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876489756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:38,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007730617] [2024-11-28 05:14:38,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:38,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:38,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:38,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:38,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:14:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:38,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:14:38,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 15488 trivial. 0 not checked. [2024-11-28 05:14:38,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:14:38,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007730617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:38,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:14:38,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:14:38,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979660044] [2024-11-28 05:14:38,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:38,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:14:38,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:38,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:14:38,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:14:38,926 INFO L87 Difference]: Start difference. First operand has 236 states, 144 states have (on average 1.4861111111111112) internal successors, (214), 145 states have internal predecessors, (214), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) [2024-11-28 05:14:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:39,018 INFO L93 Difference]: Finished difference Result 465 states and 867 transitions. [2024-11-28 05:14:39,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:14:39,020 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) Word has length 545 [2024-11-28 05:14:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:39,034 INFO L225 Difference]: With dead ends: 465 [2024-11-28 05:14:39,035 INFO L226 Difference]: Without dead ends: 232 [2024-11-28 05:14:39,042 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:14:39,045 INFO L435 NwaCegarLoop]: 385 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:39,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:14:39,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-28 05:14:39,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-11-28 05:14:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 141 states have (on average 1.4680851063829787) internal successors, (207), 141 states have internal predecessors, (207), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 05:14:39,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 385 transitions. [2024-11-28 05:14:39,169 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 385 transitions. Word has length 545 [2024-11-28 05:14:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:39,170 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 385 transitions. [2024-11-28 05:14:39,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 2 states have call successors, (89) [2024-11-28 05:14:39,172 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 385 transitions. [2024-11-28 05:14:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-28 05:14:39,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:39,193 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:39,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:14:39,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 05:14:39,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:39,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:39,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1996792872, now seen corresponding path program 1 times [2024-11-28 05:14:39,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:39,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855610393] [2024-11-28 05:14:39,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:39,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-28 05:14:40,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:40,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855610393] [2024-11-28 05:14:40,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855610393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:40,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:40,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:14:40,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007121141] [2024-11-28 05:14:40,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:40,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:14:40,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:40,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:14:40,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:14:40,841 INFO L87 Difference]: Start difference. First operand 232 states and 385 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:14:40,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:40,931 INFO L93 Difference]: Finished difference Result 462 states and 769 transitions. [2024-11-28 05:14:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:14:40,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 545 [2024-11-28 05:14:40,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:40,941 INFO L225 Difference]: With dead ends: 462 [2024-11-28 05:14:40,942 INFO L226 Difference]: Without dead ends: 233 [2024-11-28 05:14:40,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:14:40,948 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:14:40,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 762 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:14:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-28 05:14:41,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-28 05:14:41,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 142 states have (on average 1.4647887323943662) internal successors, (208), 142 states have internal predecessors, (208), 89 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 05:14:41,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 386 transitions. [2024-11-28 05:14:41,010 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 386 transitions. Word has length 545 [2024-11-28 05:14:41,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:41,013 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 386 transitions. [2024-11-28 05:14:41,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:14:41,015 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 386 transitions. [2024-11-28 05:14:41,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-28 05:14:41,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:41,033 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:41,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:14:41,033 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:41,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:41,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1788701334, now seen corresponding path program 1 times [2024-11-28 05:14:41,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:41,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785375224] [2024-11-28 05:14:41,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:41,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 231 proven. 291 refuted. 0 times theorem prover too weak. 15142 trivial. 0 not checked. [2024-11-28 05:14:42,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785375224] [2024-11-28 05:14:42,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785375224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:14:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12112740] [2024-11-28 05:14:42,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:42,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:14:42,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:42,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:14:42,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:14:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:43,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:14:43,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 6514 proven. 75 refuted. 0 times theorem prover too weak. 9075 trivial. 0 not checked. [2024-11-28 05:14:45,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:16:27,727 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 189 proven. 75 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-28 05:16:27,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12112740] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:16:27,727 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:16:27,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 18 [2024-11-28 05:16:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82362928] [2024-11-28 05:16:27,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:16:27,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 05:16:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:16:27,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:16:27,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:16:27,737 INFO L87 Difference]: Start difference. First operand 233 states and 386 transitions. Second operand has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 7 states have call successors, (267), 3 states have call predecessors, (267), 6 states have return successors, (267), 7 states have call predecessors, (267), 7 states have call successors, (267) [2024-11-28 05:16:39,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:16:39,716 INFO L93 Difference]: Finished difference Result 3167 states and 5112 transitions. [2024-11-28 05:16:39,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2024-11-28 05:16:39,717 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 7 states have call successors, (267), 3 states have call predecessors, (267), 6 states have return successors, (267), 7 states have call predecessors, (267), 7 states have call successors, (267) Word has length 545 [2024-11-28 05:16:39,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:16:39,742 INFO L225 Difference]: With dead ends: 3167 [2024-11-28 05:16:39,742 INFO L226 Difference]: Without dead ends: 2937 [2024-11-28 05:16:39,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1262 GetRequests, 1110 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10636 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=4189, Invalid=19373, Unknown=0, NotChecked=0, Total=23562 [2024-11-28 05:16:39,750 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 5843 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 3650 mSolverCounterSat, 5042 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5854 SdHoareTripleChecker+Valid, 3012 SdHoareTripleChecker+Invalid, 8692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5042 IncrementalHoareTripleChecker+Valid, 3650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:16:39,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5854 Valid, 3012 Invalid, 8692 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5042 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-28 05:16:39,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2024-11-28 05:16:40,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1431. [2024-11-28 05:16:40,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1431 states, 889 states have (on average 1.4600674915635545) internal successors, (1298), 893 states have internal predecessors, (1298), 519 states have call successors, (519), 22 states have call predecessors, (519), 22 states have return successors, (519), 515 states have call predecessors, (519), 519 states have call successors, (519) [2024-11-28 05:16:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 2336 transitions. [2024-11-28 05:16:40,131 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 2336 transitions. Word has length 545 [2024-11-28 05:16:40,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:16:40,132 INFO L471 AbstractCegarLoop]: Abstraction has 1431 states and 2336 transitions. [2024-11-28 05:16:40,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.333333333333334) internal successors, (276), 18 states have internal predecessors, (276), 7 states have call successors, (267), 3 states have call predecessors, (267), 6 states have return successors, (267), 7 states have call predecessors, (267), 7 states have call successors, (267) [2024-11-28 05:16:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 2336 transitions. [2024-11-28 05:16:40,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-28 05:16:40,146 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:16:40,147 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:16:40,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:16:40,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:40,352 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:16:40,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:16:40,353 INFO L85 PathProgramCache]: Analyzing trace with hash 262366037, now seen corresponding path program 1 times [2024-11-28 05:16:40,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:16:40,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065887228] [2024-11-28 05:16:40,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:40,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:16:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:47,136 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 276 proven. 246 refuted. 0 times theorem prover too weak. 15142 trivial. 0 not checked. [2024-11-28 05:16:47,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:16:47,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065887228] [2024-11-28 05:16:47,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065887228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:16:47,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426655386] [2024-11-28 05:16:47,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:16:47,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:16:47,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:16:47,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:16:47,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:16:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:16:47,608 INFO L256 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 05:16:47,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:16:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 10305 proven. 543 refuted. 0 times theorem prover too weak. 4816 trivial. 0 not checked. [2024-11-28 05:16:54,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:17:12,208 WARN L851 $PredicateComparison]: unable to prove that (or (let ((.cse5 (+ c_~var_1_45~0 1)) (.cse2 (mod c_~var_1_36~0 256)) (.cse4 (mod (* 255 c_~var_1_36~0) 256))) (let ((.cse6 (< 0 (+ c_~var_1_36~0 1))) (.cse7 (< 127 .cse4)) (.cse0 (< 127 .cse2)) (.cse1 (< .cse2 .cse5))) (and (or (< c_~var_1_37~0 0) (let ((.cse3 (+ c_~var_1_45~0 256))) (and (or .cse0 (< c_~var_1_36~0 0) .cse1) (<= .cse2 .cse3) (<= .cse4 .cse3) (or (< .cse4 .cse5) .cse6 .cse7)))) (or (and (or .cse6 .cse7 (< .cse4 1)) (or (< .cse2 1) .cse0) (not (= c_~var_1_36~0 0))) (not (= c_~var_1_45~0 0))) (or .cse0 .cse1 (not (= c_~var_1_37~0 0)))))) (and (not (= (+ c_~var_1_37~0 10) 0)) (let ((.cse8 (* c_~var_1_36~0 65535))) (or (< 32767 (mod (+ .cse8 65534) 65536)) (< (mod .cse8 65536) 1))) (<= c_~var_1_36~0 32766))) is different from false [2024-11-28 05:17:20,990 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 05:17:32,423 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 600 proven. 438 refuted. 0 times theorem prover too weak. 14626 trivial. 0 not checked. [2024-11-28 05:17:32,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426655386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:17:32,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:17:32,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 20, 26] total 55 [2024-11-28 05:17:32,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692832442] [2024-11-28 05:17:32,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:17:32,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-28 05:17:32,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:17:32,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-28 05:17:32,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=491, Invalid=2374, Unknown=1, NotChecked=104, Total=2970 [2024-11-28 05:17:32,428 INFO L87 Difference]: Start difference. First operand 1431 states and 2336 transitions. Second operand has 55 states, 52 states have (on average 5.423076923076923) internal successors, (282), 51 states have internal predecessors, (282), 14 states have call successors, (267), 7 states have call predecessors, (267), 15 states have return successors, (267), 13 states have call predecessors, (267), 14 states have call successors, (267) [2024-11-28 05:23:10,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 05:24:22,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:22,336 INFO L93 Difference]: Finished difference Result 41834 states and 66691 transitions. [2024-11-28 05:24:22,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 395 states. [2024-11-28 05:24:22,337 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 52 states have (on average 5.423076923076923) internal successors, (282), 51 states have internal predecessors, (282), 14 states have call successors, (267), 7 states have call predecessors, (267), 15 states have return successors, (267), 13 states have call predecessors, (267), 14 states have call successors, (267) Word has length 546 [2024-11-28 05:24:22,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:22,654 INFO L225 Difference]: With dead ends: 41834 [2024-11-28 05:24:22,654 INFO L226 Difference]: Without dead ends: 40406 [2024-11-28 05:24:22,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1562 GetRequests, 1134 SyntacticMatches, 2 SemanticMatches, 426 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 83996 ImplicationChecksByTransitivity, 252.0s TimeCoverageRelationStatistics Valid=29422, Invalid=152482, Unknown=2, NotChecked=850, Total=182756 [2024-11-28 05:24:22,710 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 11888 mSDsluCounter, 23853 mSDsCounter, 0 mSdLazyCounter, 31380 mSolverCounterSat, 7796 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12007 SdHoareTripleChecker+Valid, 25447 SdHoareTripleChecker+Invalid, 54288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 7796 IncrementalHoareTripleChecker+Valid, 31380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15112 IncrementalHoareTripleChecker+Unchecked, 146.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:22,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12007 Valid, 25447 Invalid, 54288 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [7796 Valid, 31380 Invalid, 0 Unknown, 15112 Unchecked, 146.2s Time] [2024-11-28 05:24:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40406 states. [2024-11-28 05:24:26,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40406 to 6730. [2024-11-28 05:24:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6730 states, 4308 states have (on average 1.467966573816156) internal successors, (6324), 4351 states have internal predecessors, (6324), 2322 states have call successors, (2322), 99 states have call predecessors, (2322), 99 states have return successors, (2322), 2279 states have call predecessors, (2322), 2322 states have call successors, (2322) [2024-11-28 05:24:26,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6730 states to 6730 states and 10968 transitions. [2024-11-28 05:24:26,948 INFO L78 Accepts]: Start accepts. Automaton has 6730 states and 10968 transitions. Word has length 546 [2024-11-28 05:24:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:26,950 INFO L471 AbstractCegarLoop]: Abstraction has 6730 states and 10968 transitions. [2024-11-28 05:24:26,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 52 states have (on average 5.423076923076923) internal successors, (282), 51 states have internal predecessors, (282), 14 states have call successors, (267), 7 states have call predecessors, (267), 15 states have return successors, (267), 13 states have call predecessors, (267), 14 states have call successors, (267) [2024-11-28 05:24:26,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6730 states and 10968 transitions. [2024-11-28 05:24:26,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-28 05:24:26,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:26,959 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:26,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:24:27,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:24:27,163 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:27,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:27,164 INFO L85 PathProgramCache]: Analyzing trace with hash -132000749, now seen corresponding path program 1 times [2024-11-28 05:24:27,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:27,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846909036] [2024-11-28 05:24:27,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:27,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:27,811 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-28 05:24:27,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:27,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846909036] [2024-11-28 05:24:27,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846909036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:27,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:27,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:24:27,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706231456] [2024-11-28 05:24:27,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:27,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:24:27,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:27,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:24:27,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:24:27,817 INFO L87 Difference]: Start difference. First operand 6730 states and 10968 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:24:30,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:30,971 INFO L93 Difference]: Finished difference Result 14508 states and 23652 transitions. [2024-11-28 05:24:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:24:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 546 [2024-11-28 05:24:30,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:31,016 INFO L225 Difference]: With dead ends: 14508 [2024-11-28 05:24:31,017 INFO L226 Difference]: Without dead ends: 7781 [2024-11-28 05:24:31,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:24:31,044 INFO L435 NwaCegarLoop]: 473 mSDtfsCounter, 215 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:31,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 832 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:24:31,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7781 states. [2024-11-28 05:24:33,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7781 to 7680. [2024-11-28 05:24:33,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7680 states, 4948 states have (on average 1.4706952303961196) internal successors, (7277), 4994 states have internal predecessors, (7277), 2609 states have call successors, (2609), 122 states have call predecessors, (2609), 122 states have return successors, (2609), 2563 states have call predecessors, (2609), 2609 states have call successors, (2609) [2024-11-28 05:24:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7680 states to 7680 states and 12495 transitions. [2024-11-28 05:24:33,607 INFO L78 Accepts]: Start accepts. Automaton has 7680 states and 12495 transitions. Word has length 546 [2024-11-28 05:24:33,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:33,608 INFO L471 AbstractCegarLoop]: Abstraction has 7680 states and 12495 transitions. [2024-11-28 05:24:33,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:24:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 7680 states and 12495 transitions. [2024-11-28 05:24:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-28 05:24:33,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:33,616 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:33,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:24:33,617 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:33,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:33,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1521835733, now seen corresponding path program 1 times [2024-11-28 05:24:33,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:33,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355067532] [2024-11-28 05:24:33,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:33,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-28 05:24:38,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:38,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355067532] [2024-11-28 05:24:38,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355067532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:38,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:38,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:24:38,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994322286] [2024-11-28 05:24:38,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:38,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:24:38,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:38,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:24:38,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:24:38,475 INFO L87 Difference]: Start difference. First operand 7680 states and 12495 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:24:53,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:53,817 INFO L93 Difference]: Finished difference Result 20449 states and 33210 transitions. [2024-11-28 05:24:53,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:24:53,817 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 547 [2024-11-28 05:24:53,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:53,881 INFO L225 Difference]: With dead ends: 20449 [2024-11-28 05:24:53,881 INFO L226 Difference]: Without dead ends: 14179 [2024-11-28 05:24:53,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:24:53,903 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 2267 mSDsluCounter, 3114 mSDsCounter, 0 mSdLazyCounter, 2549 mSolverCounterSat, 1264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 3552 SdHoareTripleChecker+Invalid, 3813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1264 IncrementalHoareTripleChecker+Valid, 2549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:53,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 3552 Invalid, 3813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1264 Valid, 2549 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-28 05:24:53,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14179 states. [2024-11-28 05:24:57,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14179 to 11334. [2024-11-28 05:24:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11334 states, 7702 states have (on average 1.5124642949883147) internal successors, (11649), 7778 states have internal predecessors, (11649), 3469 states have call successors, (3469), 162 states have call predecessors, (3469), 162 states have return successors, (3469), 3393 states have call predecessors, (3469), 3469 states have call successors, (3469) [2024-11-28 05:24:57,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11334 states to 11334 states and 18587 transitions. [2024-11-28 05:24:57,156 INFO L78 Accepts]: Start accepts. Automaton has 11334 states and 18587 transitions. Word has length 547 [2024-11-28 05:24:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:57,158 INFO L471 AbstractCegarLoop]: Abstraction has 11334 states and 18587 transitions. [2024-11-28 05:24:57,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 13 states have internal predecessors, (105), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:24:57,158 INFO L276 IsEmpty]: Start isEmpty. Operand 11334 states and 18587 transitions. [2024-11-28 05:24:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-28 05:24:57,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:57,168 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:57,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 05:24:57,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:57,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash 826639531, now seen corresponding path program 1 times [2024-11-28 05:24:57,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:57,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260485237] [2024-11-28 05:24:57,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:57,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15664 trivial. 0 not checked. [2024-11-28 05:24:57,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:57,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260485237] [2024-11-28 05:24:57,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260485237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:57,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:57,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:24:57,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984807573] [2024-11-28 05:24:57,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:57,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:24:57,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:57,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:24:57,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:24:57,549 INFO L87 Difference]: Start difference. First operand 11334 states and 18587 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:25:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:06,544 INFO L93 Difference]: Finished difference Result 30635 states and 49916 transitions. [2024-11-28 05:25:06,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:25:06,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 547 [2024-11-28 05:25:06,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:06,651 INFO L225 Difference]: With dead ends: 30635 [2024-11-28 05:25:06,651 INFO L226 Difference]: Without dead ends: 21966 [2024-11-28 05:25:06,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:25:06,683 INFO L435 NwaCegarLoop]: 731 mSDtfsCounter, 589 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:06,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 1709 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 05:25:06,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21966 states. [2024-11-28 05:25:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21966 to 16524. [2024-11-28 05:25:12,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16524 states, 11121 states have (on average 1.501573599496448) internal successors, (16699), 11229 states have internal predecessors, (16699), 5141 states have call successors, (5141), 261 states have call predecessors, (5141), 261 states have return successors, (5141), 5033 states have call predecessors, (5141), 5141 states have call successors, (5141) [2024-11-28 05:25:12,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16524 states to 16524 states and 26981 transitions. [2024-11-28 05:25:12,566 INFO L78 Accepts]: Start accepts. Automaton has 16524 states and 26981 transitions. Word has length 547 [2024-11-28 05:25:12,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:12,567 INFO L471 AbstractCegarLoop]: Abstraction has 16524 states and 26981 transitions. [2024-11-28 05:25:12,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 1 states have call successors, (89), 1 states have call predecessors, (89), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-28 05:25:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 16524 states and 26981 transitions. [2024-11-28 05:25:12,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-28 05:25:12,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:12,578 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:12,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:25:12,578 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:12,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -256903733, now seen corresponding path program 1 times [2024-11-28 05:25:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:12,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635236585] [2024-11-28 05:25:12,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:12,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:16,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 189 proven. 75 refuted. 0 times theorem prover too weak. 15400 trivial. 0 not checked. [2024-11-28 05:25:16,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:16,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635236585] [2024-11-28 05:25:16,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635236585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:25:16,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563820876] [2024-11-28 05:25:16,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:16,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:16,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:16,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:25:16,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:25:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:16,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-28 05:25:16,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 11316 proven. 360 refuted. 0 times theorem prover too weak. 3988 trivial. 0 not checked. [2024-11-28 05:25:27,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:25:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15664 backedges. 477 proven. 306 refuted. 0 times theorem prover too weak. 14881 trivial. 0 not checked. [2024-11-28 05:25:42,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563820876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:25:42,385 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:25:42,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 25, 22] total 57 [2024-11-28 05:25:42,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092730018] [2024-11-28 05:25:42,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:25:42,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-28 05:25:42,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:42,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-28 05:25:42,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=577, Invalid=2615, Unknown=0, NotChecked=0, Total=3192 [2024-11-28 05:25:42,391 INFO L87 Difference]: Start difference. First operand 16524 states and 26981 transitions. Second operand has 57 states, 56 states have (on average 5.678571428571429) internal successors, (318), 55 states have internal predecessors, (318), 18 states have call successors, (267), 8 states have call predecessors, (267), 16 states have return successors, (267), 18 states have call predecessors, (267), 18 states have call successors, (267) [2024-11-28 05:27:38,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:27:38,300 INFO L93 Difference]: Finished difference Result 59516 states and 96511 transitions. [2024-11-28 05:27:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2024-11-28 05:27:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 5.678571428571429) internal successors, (318), 55 states have internal predecessors, (318), 18 states have call successors, (267), 8 states have call predecessors, (267), 16 states have return successors, (267), 18 states have call predecessors, (267), 18 states have call successors, (267) Word has length 547 [2024-11-28 05:27:38,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:27:38,564 INFO L225 Difference]: With dead ends: 59516 [2024-11-28 05:27:38,564 INFO L226 Difference]: Without dead ends: 43059 [2024-11-28 05:27:38,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1351 GetRequests, 1095 SyntacticMatches, 0 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26121 ImplicationChecksByTransitivity, 37.9s TimeCoverageRelationStatistics Valid=13150, Invalid=53156, Unknown=0, NotChecked=0, Total=66306 [2024-11-28 05:27:38,634 INFO L435 NwaCegarLoop]: 621 mSDtfsCounter, 13489 mSDsluCounter, 12827 mSDsCounter, 0 mSdLazyCounter, 18503 mSolverCounterSat, 8981 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13630 SdHoareTripleChecker+Valid, 13448 SdHoareTripleChecker+Invalid, 27484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8981 IncrementalHoareTripleChecker+Valid, 18503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:27:38,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13630 Valid, 13448 Invalid, 27484 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8981 Valid, 18503 Invalid, 0 Unknown, 0 Unchecked, 61.1s Time] [2024-11-28 05:27:38,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43059 states. [2024-11-28 05:27:46,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43059 to 15347. [2024-11-28 05:27:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15347 states, 10767 states have (on average 1.5352465867929785) internal successors, (16530), 10853 states have internal predecessors, (16530), 4330 states have call successors, (4330), 249 states have call predecessors, (4330), 249 states have return successors, (4330), 4244 states have call predecessors, (4330), 4330 states have call successors, (4330) [2024-11-28 05:27:46,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15347 states to 15347 states and 25190 transitions. [2024-11-28 05:27:47,022 INFO L78 Accepts]: Start accepts. Automaton has 15347 states and 25190 transitions. Word has length 547 [2024-11-28 05:27:47,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:27:47,023 INFO L471 AbstractCegarLoop]: Abstraction has 15347 states and 25190 transitions. [2024-11-28 05:27:47,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 5.678571428571429) internal successors, (318), 55 states have internal predecessors, (318), 18 states have call successors, (267), 8 states have call predecessors, (267), 16 states have return successors, (267), 18 states have call predecessors, (267), 18 states have call successors, (267) [2024-11-28 05:27:47,024 INFO L276 IsEmpty]: Start isEmpty. Operand 15347 states and 25190 transitions. [2024-11-28 05:27:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2024-11-28 05:27:47,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:27:47,043 INFO L218 NwaCegarLoop]: trace histogram [89, 89, 89, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:27:47,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:27:47,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_542fc9b2-ecd1-478e-91d6-9e949e0b5436/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:27:47,244 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:27:47,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:27:47,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2055575270, now seen corresponding path program 1 times [2024-11-28 05:27:47,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:27:47,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252775805] [2024-11-28 05:27:47,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:27:47,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:27:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat