./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.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_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/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_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/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_864a4543-ddae-40a2-93a3-0790a36deb5f/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 37b4b79db92bc49aa9cdfceca437d05e7b12666dbe0c3dacb1ef78b459e8fefa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:41,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:41,672 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:10:41,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:41,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:41,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:41,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:41,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:41,717 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:41,717 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:41,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:41,717 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:41,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:41,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:41,718 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:41,719 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:41,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:41,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:41,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:41,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:41,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:41,721 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_864a4543-ddae-40a2-93a3-0790a36deb5f/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 -> 37b4b79db92bc49aa9cdfceca437d05e7b12666dbe0c3dacb1ef78b459e8fefa [2024-11-28 03:10:42,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:42,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:42,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:42,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:42,039 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:42,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i [2024-11-28 03:10:45,729 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/69723af69/f1d26f30e8d44ede93707caf94ec1be7/FLAG31505e07f [2024-11-28 03:10:46,090 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:10:46,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i [2024-11-28 03:10:46,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/69723af69/f1d26f30e8d44ede93707caf94ec1be7/FLAG31505e07f [2024-11-28 03:10:46,131 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/69723af69/f1d26f30e8d44ede93707caf94ec1be7 [2024-11-28 03:10:46,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:10:46,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:10:46,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:46,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:10:46,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:10:46,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9bcc31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46, skipping insertion in model container [2024-11-28 03:10:46,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,182 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:10:46,415 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_864a4543-ddae-40a2-93a3-0790a36deb5f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i[915,928] [2024-11-28 03:10:46,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:46,525 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:10:46,543 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_864a4543-ddae-40a2-93a3-0790a36deb5f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i[915,928] [2024-11-28 03:10:46,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:10:46,625 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:10:46,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46 WrapperNode [2024-11-28 03:10:46,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:10:46,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:46,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:10:46,630 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:10:46,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,707 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-28 03:10:46,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:10:46,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:10:46,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:10:46,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:10:46,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,730 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,760 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 03:10:46,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,774 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:10:46,797 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:10:46,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:10:46,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:10:46,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (1/1) ... [2024-11-28 03:10:46,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:46,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:46,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:10:46,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:10:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:10:46,860 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:10:46,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:10:46,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:10:46,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:10:46,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:10:46,950 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:10:46,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:10:47,299 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 03:10:47,299 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:10:47,315 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:10:47,315 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:10:47,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:47 BoogieIcfgContainer [2024-11-28 03:10:47,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:10:47,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:10:47,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:10:47,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:10:47,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:46" (1/3) ... [2024-11-28 03:10:47,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f29510c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:47, skipping insertion in model container [2024-11-28 03:10:47,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:46" (2/3) ... [2024-11-28 03:10:47,328 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f29510c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:47, skipping insertion in model container [2024-11-28 03:10:47,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:47" (3/3) ... [2024-11-28 03:10:47,329 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-21.i [2024-11-28 03:10:47,347 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:10:47,351 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-21.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:10:47,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:10:47,439 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;@391da4de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:10:47,439 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:10:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:10:47,454 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:47,455 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:47,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:47,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1174544175, now seen corresponding path program 1 times [2024-11-28 03:10:47,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:47,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886584880] [2024-11-28 03:10:47,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:47,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:10:47,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886584880] [2024-11-28 03:10:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886584880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:10:47,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947679600] [2024-11-28 03:10:47,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:47,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:47,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:47,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:10:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:47,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:10:47,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:10:47,974 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 03:10:47,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:10:47,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947679600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:47,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:10:47,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:10:47,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31161471] [2024-11-28 03:10:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:47,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:10:47,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:48,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:10:48,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:48,008 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:10:48,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:48,033 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions. [2024-11-28 03:10:48,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:10:48,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-28 03:10:48,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:48,041 INFO L225 Difference]: With dead ends: 75 [2024-11-28 03:10:48,041 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:10:48,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:10:48,047 INFO L435 NwaCegarLoop]: 51 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, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:48,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:48,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:10:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 03:10:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-28 03:10:48,082 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 64 [2024-11-28 03:10:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:48,083 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-28 03:10:48,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:10:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-28 03:10:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:10:48,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:48,085 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:48,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:10:48,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:10:48,286 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:48,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:48,287 INFO L85 PathProgramCache]: Analyzing trace with hash -562669323, now seen corresponding path program 1 times [2024-11-28 03:10:48,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:48,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232123434] [2024-11-28 03:10:48,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:48,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:48,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:48,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232123434] [2024-11-28 03:10:48,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232123434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:48,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:48,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:10:48,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112904963] [2024-11-28 03:10:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:48,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:10:48,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:48,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:10:48,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:48,579 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:48,620 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2024-11-28 03:10:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:10:48,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-28 03:10:48,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:48,622 INFO L225 Difference]: With dead ends: 71 [2024-11-28 03:10:48,622 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:10:48,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:10:48,629 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:48,629 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:10:48,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:10:48,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 03:10:48,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:10:48,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2024-11-28 03:10:48,645 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 64 [2024-11-28 03:10:48,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:48,646 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-11-28 03:10:48,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-11-28 03:10:48,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:10:48,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:48,649 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:48,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:10:48,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:48,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:48,650 INFO L85 PathProgramCache]: Analyzing trace with hash -505411021, now seen corresponding path program 1 times [2024-11-28 03:10:48,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:48,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694513803] [2024-11-28 03:10:48,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:48,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:50,972 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:50,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:50,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694513803] [2024-11-28 03:10:50,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694513803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:50,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:50,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:10:50,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48827199] [2024-11-28 03:10:50,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:50,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:10:50,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:50,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:10:50,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:10:50,975 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:51,379 INFO L93 Difference]: Finished difference Result 84 states and 105 transitions. [2024-11-28 03:10:51,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:10:51,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-28 03:10:51,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:51,383 INFO L225 Difference]: With dead ends: 84 [2024-11-28 03:10:51,384 INFO L226 Difference]: Without dead ends: 82 [2024-11-28 03:10:51,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:10:51,388 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 61 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:51,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 287 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:10:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-28 03:10:51,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2024-11-28 03:10:51,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 49 states have (on average 1.183673469387755) internal successors, (58), 50 states have internal predecessors, (58), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:10:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 90 transitions. [2024-11-28 03:10:51,430 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 90 transitions. Word has length 64 [2024-11-28 03:10:51,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:51,430 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 90 transitions. [2024-11-28 03:10:51,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2024-11-28 03:10:51,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:10:51,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:51,437 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:51,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:10:51,438 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:51,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:51,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1278414269, now seen corresponding path program 1 times [2024-11-28 03:10:51,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:51,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952878939] [2024-11-28 03:10:51,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:51,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:10:52,933 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:10:52,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:10:52,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952878939] [2024-11-28 03:10:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952878939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:10:52,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:10:52,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:10:52,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203869539] [2024-11-28 03:10:52,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:10:52,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:10:52,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:10:52,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:10:52,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:10:52,938 INFO L87 Difference]: Start difference. First operand 69 states and 90 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:53,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:10:53,437 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2024-11-28 03:10:53,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:10:53,438 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 03:10:53,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:10:53,440 INFO L225 Difference]: With dead ends: 88 [2024-11-28 03:10:53,440 INFO L226 Difference]: Without dead ends: 86 [2024-11-28 03:10:53,440 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:10:53,442 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 63 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:10:53,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 297 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:10:53,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-28 03:10:53,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2024-11-28 03:10:53,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 46 states have (on average 1.173913043478261) internal successors, (54), 47 states have internal predecessors, (54), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 03:10:53,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2024-11-28 03:10:53,464 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 65 [2024-11-28 03:10:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:10:53,464 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2024-11-28 03:10:53,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:10:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2024-11-28 03:10:53,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:10:53,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:10:53,466 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:10:53,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:10:53,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:10:53,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:10:53,468 INFO L85 PathProgramCache]: Analyzing trace with hash 434558742, now seen corresponding path program 1 times [2024-11-28 03:10:53,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:10:53,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307756601] [2024-11-28 03:10:53,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:53,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:10:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:10:53,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [277800769] [2024-11-28 03:10:53,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:10:53,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:53,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:10:53,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:10:53,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:10:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:10:53,685 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:10:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:10:53,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:10:53,781 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:10:53,782 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:10:53,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:10:53,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:10:53,989 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 03:10:54,039 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:10:54,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:54 BoogieIcfgContainer [2024-11-28 03:10:54,044 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:10:54,045 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:10:54,045 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:10:54,045 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:10:54,050 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:47" (3/4) ... [2024-11-28 03:10:54,052 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:10:54,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:10:54,054 INFO L158 Benchmark]: Toolchain (without parser) took 7917.77ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 90.2MB in the beginning and 45.9MB in the end (delta: 44.3MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2024-11-28 03:10:54,055 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:54,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 488.93ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 76.9MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:10:54,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.29ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:54,056 INFO L158 Benchmark]: Boogie Preprocessor took 88.38ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 72.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:54,056 INFO L158 Benchmark]: RCFGBuilder took 518.69ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 58.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:10:54,058 INFO L158 Benchmark]: TraceAbstraction took 6725.63ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 58.2MB in the beginning and 45.9MB in the end (delta: 12.3MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-28 03:10:54,060 INFO L158 Benchmark]: Witness Printer took 8.89ms. Allocated memory is still 142.6MB. Free memory was 45.9MB in the beginning and 45.9MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:10:54,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 488.93ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 76.9MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.29ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 75.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 88.38ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 72.7MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.69ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 58.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6725.63ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 58.2MB in the beginning and 45.9MB in the end (delta: 12.3MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 8.89ms. Allocated memory is still 142.6MB. Free memory was 45.9MB in the beginning and 45.9MB in the end (delta: 18.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 72, overapproximation of someBinaryDOUBLEComparisonOperation at line 70, overapproximation of someBinaryDOUBLEComparisonOperation at line 85. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 32; [L23] unsigned char var_1_7 = 1; [L24] signed char var_1_8 = -32; [L25] signed char var_1_9 = -8; [L26] unsigned char var_1_10 = 2; [L27] double var_1_11 = 15.6; [L28] double var_1_12 = 15.4; [L29] double var_1_13 = 32.2; [L30] unsigned char var_1_14 = 5; [L31] unsigned short int last_1_var_1_1 = 32; [L32] signed char last_1_var_1_8 = -32; [L33] unsigned char last_1_var_1_10 = 2; VAL [isInitial=0, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8] [L89] isInitial = 1 [L90] FCALL initially() [L92] CALL updateLastVariables() [L80] last_1_var_1_1 = var_1_1 [L81] last_1_var_1_8 = var_1_8 [L82] last_1_var_1_10 = var_1_10 VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8] [L92] RET updateLastVariables() [L93] CALL updateVariables() [L63] var_1_7 = __VERIFIER_nondet_uchar() [L64] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_8=-32, var_1_9=-8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_8=-32, var_1_9=-8] [L64] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_8=-32, var_1_9=-8] [L65] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8] [L65] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=-8] [L66] var_1_9 = __VERIFIER_nondet_char() [L67] CALL assume_abort_if_not(var_1_9 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L67] RET assume_abort_if_not(var_1_9 >= -126) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L68] CALL assume_abort_if_not(var_1_9 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L68] RET assume_abort_if_not(var_1_9 <= 126) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_11=78/5, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L69] var_1_11 = __VERIFIER_nondet_double() [L70] CALL assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L70] RET assume_abort_if_not((var_1_11 >= -922337.2036854776000e+13F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 9223372.036854776000e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_12=77/5, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L71] var_1_12 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L72] RET assume_abort_if_not((var_1_12 >= -922337.2036854776000e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_13=161/5, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L73] var_1_13 = __VERIFIER_nondet_double() [L74] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L74] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=5, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L75] var_1_14 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L76] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_14 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L77] RET assume_abort_if_not(var_1_14 <= 254) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L93] RET updateVariables() [L94] CALL step() [L37] signed long int stepLocal_2 = (((last_1_var_1_8) < (last_1_var_1_8)) ? (last_1_var_1_8) : (last_1_var_1_8)); [L38] unsigned char stepLocal_1 = var_1_7; VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_1=1, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L39] COND TRUE ((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) <= var_1_13 VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_1=1, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L40] COND FALSE !(stepLocal_1 && (last_1_var_1_8 >= var_1_9)) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L48] signed long int stepLocal_0 = ((((- last_1_var_1_10)) > (last_1_var_1_10)) ? ((- last_1_var_1_10)) : (last_1_var_1_10)); VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_0=2, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=-32, var_1_9=0] [L49] COND FALSE !(last_1_var_1_10 < stepLocal_0) [L52] var_1_8 = var_1_9 VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=32, var_1_7=1, var_1_8=0, var_1_9=0] [L54] COND FALSE !((var_1_10 + ((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) < (var_1_10 * var_1_8)) [L59] var_1_1 = var_1_10 VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, stepLocal_2=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0] [L94] RET step() [L95] CALL, EXPR property() [L85-L86] return ((((var_1_10 + ((((var_1_10) > (var_1_10)) ? (var_1_10) : (var_1_10)))) < (var_1_10 * var_1_8)) ? (var_1_7 ? (var_1_1 == ((unsigned short int) var_1_10)) : 1) : (var_1_1 == ((unsigned short int) var_1_10))) && ((last_1_var_1_10 < (((((- last_1_var_1_10)) > (last_1_var_1_10)) ? ((- last_1_var_1_10)) : (last_1_var_1_10)))) ? (var_1_8 == ((signed char) ((((var_1_9) < 0 ) ? -(var_1_9) : (var_1_9))))) : (var_1_8 == ((signed char) var_1_9)))) && ((((((var_1_11) < (var_1_12)) ? (var_1_11) : (var_1_12))) <= var_1_13) ? ((var_1_7 && (last_1_var_1_8 >= var_1_9)) ? ((last_1_var_1_1 <= ((((last_1_var_1_8) < (last_1_var_1_8)) ? (last_1_var_1_8) : (last_1_var_1_8)))) ? (var_1_10 == ((unsigned char) var_1_14)) : 1) : 1) : (var_1_10 == ((unsigned char) var_1_14))) ; VAL [\result=0, isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0] [L95] RET, EXPR property() [L95] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=2, last_1_var_1_1=32, last_1_var_1_8=-32, var_1_10=2, var_1_14=0, var_1_1=2, var_1_7=1, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 5, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 728 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 482 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 246 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 33 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 451 NumberOfCodeBlocks, 451 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 316 ConstructedInterpolants, 0 QuantifiedInterpolants, 531 SizeOfPredicates, 0 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 704/720 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:10:54,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/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_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/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 37b4b79db92bc49aa9cdfceca437d05e7b12666dbe0c3dacb1ef78b459e8fefa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:10:57,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:10:57,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:10:57,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:10:57,602 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:10:57,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:10:57,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:10:57,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:10:57,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:10:57,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:10:57,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:10:57,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:10:57,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:10:57,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:10:57,662 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:10:57,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:10:57,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:10:57,664 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:57,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:57,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:10:57,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:10:57,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:10:57,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:10:57,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:10:57,668 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_864a4543-ddae-40a2-93a3-0790a36deb5f/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 -> 37b4b79db92bc49aa9cdfceca437d05e7b12666dbe0c3dacb1ef78b459e8fefa [2024-11-28 03:10:58,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:10:58,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:10:58,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:10:58,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:10:58,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:10:58,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i [2024-11-28 03:11:01,813 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/62d257ca3/59974b68f59d412b8fce9b8e599734d5/FLAGc874bbdcb [2024-11-28 03:11:02,178 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:11:02,179 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i [2024-11-28 03:11:02,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/62d257ca3/59974b68f59d412b8fce9b8e599734d5/FLAGc874bbdcb [2024-11-28 03:11:02,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/data/62d257ca3/59974b68f59d412b8fce9b8e599734d5 [2024-11-28 03:11:02,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:11:02,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:11:02,234 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:02,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:11:02,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:11:02,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0525f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02, skipping insertion in model container [2024-11-28 03:11:02,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,266 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:11:02,472 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_864a4543-ddae-40a2-93a3-0790a36deb5f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i[915,928] [2024-11-28 03:11:02,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:02,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:11:02,599 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_864a4543-ddae-40a2-93a3-0790a36deb5f/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-21.i[915,928] [2024-11-28 03:11:02,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:11:02,677 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:11:02,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02 WrapperNode [2024-11-28 03:11:02,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:11:02,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:02,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:11:02,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:11:02,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,742 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-28 03:11:02,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:11:02,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:11:02,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:11:02,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:11:02,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,768 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,783 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 03:11:02,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,793 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,795 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:11:02,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:11:02,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:11:02,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:11:02,823 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (1/1) ... [2024-11-28 03:11:02,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:11:02,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:11:02,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:11:02,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:11:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:11:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:11:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:11:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:11:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:11:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:11:03,043 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:11:03,046 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:11:03,472 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 03:11:03,473 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:11:03,485 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:11:03,486 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:11:03,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:03 BoogieIcfgContainer [2024-11-28 03:11:03,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:11:03,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:11:03,490 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:11:03,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:11:03,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:11:02" (1/3) ... [2024-11-28 03:11:03,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40aee7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:03, skipping insertion in model container [2024-11-28 03:11:03,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:11:02" (2/3) ... [2024-11-28 03:11:03,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40aee7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:11:03, skipping insertion in model container [2024-11-28 03:11:03,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:11:03" (3/3) ... [2024-11-28 03:11:03,501 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-21.i [2024-11-28 03:11:03,519 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:11:03,521 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount25_file-21.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:11:03,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:11:03,607 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;@134c4cec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:11:03,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:11:03,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:11:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:11:03,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:03,624 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:03,625 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:03,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1174544175, now seen corresponding path program 1 times [2024-11-28 03:11:03,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:03,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231572010] [2024-11-28 03:11:03,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:03,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:03,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:03,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:03,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 03:11:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:03,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:11:03,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:03,958 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:11:03,958 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:11:03,959 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:03,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231572010] [2024-11-28 03:11:03,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231572010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:03,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:11:03,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312832666] [2024-11-28 03:11:03,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:03,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:11:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:03,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:11:03,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:11:03,994 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 30 states have internal predecessors, (40), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:11:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:04,023 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions. [2024-11-28 03:11:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:11:04,025 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-28 03:11:04,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:04,033 INFO L225 Difference]: With dead ends: 75 [2024-11-28 03:11:04,034 INFO L226 Difference]: Without dead ends: 37 [2024-11-28 03:11:04,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:11:04,042 INFO L435 NwaCegarLoop]: 51 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, 51 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:04,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:11:04,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-28 03:11:04,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-28 03:11:04,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:11:04,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2024-11-28 03:11:04,092 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 64 [2024-11-28 03:11:04,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:04,093 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2024-11-28 03:11:04,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 03:11:04,093 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2024-11-28 03:11:04,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:11:04,096 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:04,096 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:04,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 03:11:04,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:04,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:04,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:04,299 INFO L85 PathProgramCache]: Analyzing trace with hash -562669323, now seen corresponding path program 1 times [2024-11-28 03:11:04,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:04,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169541451] [2024-11-28 03:11:04,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:04,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:04,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:04,302 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:04,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:11:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:04,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:11:04,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:04,888 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:11:04,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:11:04,889 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:04,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169541451] [2024-11-28 03:11:04,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169541451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:04,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:04,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:11:04,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328809337] [2024-11-28 03:11:04,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:04,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:11:04,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:04,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:11:04,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:11:04,899 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:11:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:05,373 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2024-11-28 03:11:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:11:05,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-28 03:11:05,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:05,377 INFO L225 Difference]: With dead ends: 116 [2024-11-28 03:11:05,377 INFO L226 Difference]: Without dead ends: 82 [2024-11-28 03:11:05,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:11:05,379 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 45 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:05,380 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 167 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:11:05,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-28 03:11:05,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 71. [2024-11-28 03:11:05,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 50 states have (on average 1.26) internal successors, (63), 50 states have internal predecessors, (63), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:11:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2024-11-28 03:11:05,403 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 64 [2024-11-28 03:11:05,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:05,403 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2024-11-28 03:11:05,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:11:05,404 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2024-11-28 03:11:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 03:11:05,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:05,406 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:05,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 03:11:05,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:05,607 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:05,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:05,608 INFO L85 PathProgramCache]: Analyzing trace with hash -505411021, now seen corresponding path program 1 times [2024-11-28 03:11:05,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:05,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731390248] [2024-11-28 03:11:05,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:05,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:05,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:05,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:05,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:11:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:05,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:11:05,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:11:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:11:52,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:11:52,624 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:11:52,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731390248] [2024-11-28 03:11:52,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731390248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:11:52,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:11:52,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:11:52,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449510279] [2024-11-28 03:11:52,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:11:52,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:11:52,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:11:52,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:11:52,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:11:52,627 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:11:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:11:53,367 INFO L93 Difference]: Finished difference Result 124 states and 167 transitions. [2024-11-28 03:11:53,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:11:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-28 03:11:53,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:11:53,372 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:11:53,373 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:11:53,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:11:53,374 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 64 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:11:53,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 215 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:11:53,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:11:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 101. [2024-11-28 03:11:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 70 states have internal predecessors, (87), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:11:53,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 141 transitions. [2024-11-28 03:11:53,404 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 141 transitions. Word has length 64 [2024-11-28 03:11:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:11:53,404 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 141 transitions. [2024-11-28 03:11:53,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:11:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 141 transitions. [2024-11-28 03:11:53,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:11:53,406 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:11:53,406 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:11:53,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 03:11:53,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:53,607 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:11:53,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:11:53,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1278414269, now seen corresponding path program 1 times [2024-11-28 03:11:53,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:11:53,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806225603] [2024-11-28 03:11:53,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:11:53,609 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:11:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:11:53,614 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:11:53,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 03:11:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:11:53,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:11:53,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:13,754 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:12:13,754 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:12:13,755 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:13,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806225603] [2024-11-28 03:12:13,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806225603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:13,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:13,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:12:13,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572649583] [2024-11-28 03:12:13,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:13,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:12:13,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:13,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:12:13,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:12:13,757 INFO L87 Difference]: Start difference. First operand 101 states and 141 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:12:14,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:14,488 INFO L93 Difference]: Finished difference Result 129 states and 172 transitions. [2024-11-28 03:12:14,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:12:14,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 03:12:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:14,493 INFO L225 Difference]: With dead ends: 129 [2024-11-28 03:12:14,493 INFO L226 Difference]: Without dead ends: 127 [2024-11-28 03:12:14,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:12:14,499 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 62 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:14,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 225 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:12:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-28 03:12:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2024-11-28 03:12:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:12:14,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 143 transitions. [2024-11-28 03:12:14,545 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 143 transitions. Word has length 65 [2024-11-28 03:12:14,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:14,550 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 143 transitions. [2024-11-28 03:12:14,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:12:14,550 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 143 transitions. [2024-11-28 03:12:14,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:12:14,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:14,551 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:14,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 03:12:14,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:14,752 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:14,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1276567227, now seen corresponding path program 1 times [2024-11-28 03:12:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:14,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695990320] [2024-11-28 03:12:14,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:14,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:14,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:14,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:14,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 03:12:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:14,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:12:14,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:12:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:12:53,082 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:12:53,083 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:12:53,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695990320] [2024-11-28 03:12:53,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695990320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:12:53,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:12:53,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:12:53,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77754992] [2024-11-28 03:12:53,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:12:53,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:12:53,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:12:53,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:12:53,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:12:53,085 INFO L87 Difference]: Start difference. First operand 102 states and 143 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:12:53,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:12:53,784 INFO L93 Difference]: Finished difference Result 127 states and 170 transitions. [2024-11-28 03:12:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:12:53,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 03:12:53,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:12:53,789 INFO L225 Difference]: With dead ends: 127 [2024-11-28 03:12:53,789 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 03:12:53,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:12:53,791 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 54 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:12:53,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 232 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:12:53,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 03:12:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 102. [2024-11-28 03:12:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 71 states have (on average 1.2535211267605635) internal successors, (89), 71 states have internal predecessors, (89), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:12:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 143 transitions. [2024-11-28 03:12:53,812 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 143 transitions. Word has length 65 [2024-11-28 03:12:53,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:12:53,813 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 143 transitions. [2024-11-28 03:12:53,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:12:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 143 transitions. [2024-11-28 03:12:53,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:12:53,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:12:53,815 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:12:53,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 03:12:54,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:54,016 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:12:54,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:12:54,017 INFO L85 PathProgramCache]: Analyzing trace with hash 434558742, now seen corresponding path program 1 times [2024-11-28 03:12:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:12:54,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398636018] [2024-11-28 03:12:54,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:12:54,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:12:54,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:12:54,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:12:54,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-28 03:12:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:12:54,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:12:54,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:32,129 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:13:32,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:32,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:32,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398636018] [2024-11-28 03:13:32,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398636018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:32,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:32,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:13:32,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821140130] [2024-11-28 03:13:32,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:32,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:13:32,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:32,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:13:32,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:13:32,132 INFO L87 Difference]: Start difference. First operand 102 states and 143 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:13:33,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:33,865 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions. [2024-11-28 03:13:33,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:13:33,865 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 03:13:33,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:33,867 INFO L225 Difference]: With dead ends: 124 [2024-11-28 03:13:33,868 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:13:33,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:13:33,869 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 49 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:33,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 240 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:13:33,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:13:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 112. [2024-11-28 03:13:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 80 states have (on average 1.2375) internal successors, (99), 80 states have internal predecessors, (99), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:13:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 153 transitions. [2024-11-28 03:13:33,890 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 153 transitions. Word has length 65 [2024-11-28 03:13:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:33,890 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 153 transitions. [2024-11-28 03:13:33,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:13:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 153 transitions. [2024-11-28 03:13:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:13:33,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:33,892 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:33,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-28 03:13:34,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:34,093 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:34,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:34,093 INFO L85 PathProgramCache]: Analyzing trace with hash 352705850, now seen corresponding path program 1 times [2024-11-28 03:13:34,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:34,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260222913] [2024-11-28 03:13:34,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:34,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:34,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:34,096 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:34,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-28 03:13:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:34,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:13:34,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:13:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:13:53,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:13:53,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:13:53,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260222913] [2024-11-28 03:13:53,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1260222913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:13:53,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:13:53,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:13:53,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196862796] [2024-11-28 03:13:53,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:13:53,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:13:53,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:13:53,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:13:53,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:13:53,401 INFO L87 Difference]: Start difference. First operand 112 states and 153 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:13:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:13:55,274 INFO L93 Difference]: Finished difference Result 129 states and 171 transitions. [2024-11-28 03:13:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:13:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-11-28 03:13:55,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:13:55,277 INFO L225 Difference]: With dead ends: 129 [2024-11-28 03:13:55,277 INFO L226 Difference]: Without dead ends: 127 [2024-11-28 03:13:55,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:13:55,278 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 56 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:13:55,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 267 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:13:55,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-28 03:13:55,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113. [2024-11-28 03:13:55,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 81 states have internal predecessors, (101), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:13:55,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions. [2024-11-28 03:13:55,316 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 66 [2024-11-28 03:13:55,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:13:55,317 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions. [2024-11-28 03:13:55,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:13:55,317 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2024-11-28 03:13:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:13:55,318 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:13:55,318 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:13:55,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-28 03:13:55,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:55,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:13:55,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:13:55,520 INFO L85 PathProgramCache]: Analyzing trace with hash 350858808, now seen corresponding path program 1 times [2024-11-28 03:13:55,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:13:55,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333566212] [2024-11-28 03:13:55,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:13:55,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:13:55,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:13:55,526 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:13:55,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-28 03:13:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:13:55,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:13:55,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 03:14:29,917 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:14:29,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:29,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333566212] [2024-11-28 03:14:29,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333566212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:29,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:29,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 03:14:29,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735633734] [2024-11-28 03:14:29,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:29,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:14:29,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:29,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:14:29,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:14:29,920 INFO L87 Difference]: Start difference. First operand 113 states and 155 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:14:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:31,800 INFO L93 Difference]: Finished difference Result 127 states and 169 transitions. [2024-11-28 03:14:31,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:14:31,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-11-28 03:14:31,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:31,802 INFO L225 Difference]: With dead ends: 127 [2024-11-28 03:14:31,803 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 03:14:31,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:14:31,804 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 57 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:31,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 275 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:14:31,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 03:14:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 113. [2024-11-28 03:14:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 81 states have internal predecessors, (101), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-28 03:14:31,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 155 transitions. [2024-11-28 03:14:31,822 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 155 transitions. Word has length 66 [2024-11-28 03:14:31,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:31,823 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 155 transitions. [2024-11-28 03:14:31,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:14:31,823 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 155 transitions. [2024-11-28 03:14:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:14:31,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:31,825 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:31,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:14:32,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:32,027 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:32,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:32,027 INFO L85 PathProgramCache]: Analyzing trace with hash -154222686, now seen corresponding path program 1 times [2024-11-28 03:14:32,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:32,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087544295] [2024-11-28 03:14:32,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:32,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:32,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:32,033 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:32,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-28 03:14:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:32,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:14:32,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:14:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:14:32,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:14:32,247 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:14:32,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087544295] [2024-11-28 03:14:32,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087544295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:14:32,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:14:32,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:14:32,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971017057] [2024-11-28 03:14:32,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:14:32,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:14:32,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:14:32,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:14:32,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:32,249 INFO L87 Difference]: Start difference. First operand 113 states and 155 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:14:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:14:32,455 INFO L93 Difference]: Finished difference Result 175 states and 240 transitions. [2024-11-28 03:14:32,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:14:32,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 125 [2024-11-28 03:14:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:14:32,458 INFO L225 Difference]: With dead ends: 175 [2024-11-28 03:14:32,458 INFO L226 Difference]: Without dead ends: 141 [2024-11-28 03:14:32,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:14:32,459 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 34 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:14:32,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 153 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:14:32,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-28 03:14:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 136. [2024-11-28 03:14:32,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 96 states have (on average 1.2395833333333333) internal successors, (119), 97 states have internal predecessors, (119), 34 states have call successors, (34), 5 states have call predecessors, (34), 5 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:14:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 187 transitions. [2024-11-28 03:14:32,482 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 187 transitions. Word has length 125 [2024-11-28 03:14:32,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:14:32,482 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 187 transitions. [2024-11-28 03:14:32,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:14:32,483 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 187 transitions. [2024-11-28 03:14:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 03:14:32,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:14:32,485 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:14:32,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-28 03:14:32,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:32,686 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:14:32,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:14:32,687 INFO L85 PathProgramCache]: Analyzing trace with hash -96964384, now seen corresponding path program 1 times [2024-11-28 03:14:32,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:14:32,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456472902] [2024-11-28 03:14:32,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:14:32,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:14:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:14:32,690 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:14:32,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-28 03:14:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:14:32,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:14:32,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:18:55,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:18:55,591 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:18:55,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456472902] [2024-11-28 03:18:55,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456472902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:55,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:55,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:18:55,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354609551] [2024-11-28 03:18:55,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:55,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:18:55,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:18:55,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:18:55,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:55,594 INFO L87 Difference]: Start difference. First operand 136 states and 187 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:18:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:56,240 INFO L93 Difference]: Finished difference Result 161 states and 211 transitions. [2024-11-28 03:18:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:56,241 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 125 [2024-11-28 03:18:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:56,243 INFO L225 Difference]: With dead ends: 161 [2024-11-28 03:18:56,243 INFO L226 Difference]: Without dead ends: 159 [2024-11-28 03:18:56,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:56,244 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 49 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:56,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 321 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:18:56,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-11-28 03:18:56,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 140. [2024-11-28 03:18:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:18:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2024-11-28 03:18:56,268 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 125 [2024-11-28 03:18:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:56,269 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2024-11-28 03:18:56,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:18:56,269 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2024-11-28 03:18:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:18:56,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:56,272 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:56,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:18:56,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:18:56,472 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:56,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:56,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1055358128, now seen corresponding path program 1 times [2024-11-28 03:18:56,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:18:56,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359285130] [2024-11-28 03:18:56,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:56,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:18:56,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:18:56,476 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:18:56,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-28 03:18:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:56,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:18:56,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:20:24,718 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:20:24,719 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:20:24,719 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:20:24,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359285130] [2024-11-28 03:20:24,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359285130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:20:24,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:20:24,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:20:24,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576017854] [2024-11-28 03:20:24,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:20:24,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:20:24,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:20:24,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:20:24,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:20:24,721 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:20:25,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:20:25,351 INFO L93 Difference]: Finished difference Result 167 states and 217 transitions. [2024-11-28 03:20:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:20:25,353 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 126 [2024-11-28 03:20:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:20:25,354 INFO L225 Difference]: With dead ends: 167 [2024-11-28 03:20:25,354 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 03:20:25,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:20:25,356 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 56 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:20:25,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 334 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:20:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 03:20:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 140. [2024-11-28 03:20:25,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 99 states have (on average 1.2323232323232323) internal successors, (122), 100 states have internal predecessors, (122), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:20:25,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 190 transitions. [2024-11-28 03:20:25,377 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 190 transitions. Word has length 126 [2024-11-28 03:20:25,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:20:25,378 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 190 transitions. [2024-11-28 03:20:25,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:20:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 190 transitions. [2024-11-28 03:20:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:20:25,381 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:20:25,381 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:20:25,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-28 03:20:25,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:20:25,582 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:20:25,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:20:25,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1053511086, now seen corresponding path program 1 times [2024-11-28 03:20:25,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:20:25,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526266617] [2024-11-28 03:20:25,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:20:25,583 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:20:25,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:20:25,586 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:20:25,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-28 03:20:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:20:25,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:20:25,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-28 03:24:31,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:24:31,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:24:31,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526266617] [2024-11-28 03:24:31,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526266617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:31,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:31,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:24:31,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527232402] [2024-11-28 03:24:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:31,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:24:31,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:24:31,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:24:31,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:24:31,813 INFO L87 Difference]: Start difference. First operand 140 states and 190 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:24:32,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:32,363 INFO L93 Difference]: Finished difference Result 169 states and 220 transitions. [2024-11-28 03:24:32,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:24:32,363 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 126 [2024-11-28 03:24:32,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:32,365 INFO L225 Difference]: With dead ends: 169 [2024-11-28 03:24:32,365 INFO L226 Difference]: Without dead ends: 167 [2024-11-28 03:24:32,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:24:32,366 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 70 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:32,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 328 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:24:32,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-28 03:24:32,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 133. [2024-11-28 03:24:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.2173913043478262) internal successors, (112), 93 states have internal predecessors, (112), 34 states have call successors, (34), 6 states have call predecessors, (34), 6 states have return successors, (34), 33 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-28 03:24:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 180 transitions. [2024-11-28 03:24:32,384 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 180 transitions. Word has length 126 [2024-11-28 03:24:32,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:32,385 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 180 transitions. [2024-11-28 03:24:32,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:24:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 180 transitions. [2024-11-28 03:24:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:24:32,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:32,388 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:32,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-28 03:24:32,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:24:32,592 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:32,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:32,592 INFO L85 PathProgramCache]: Analyzing trace with hash 154244299, now seen corresponding path program 1 times [2024-11-28 03:24:32,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:24:32,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133453177] [2024-11-28 03:24:32,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:32,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:24:32,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:24:32,597 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:24:32,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-28 03:24:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:32,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:24:32,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:32,823 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2024-11-28 03:24:32,823 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:24:32,823 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:24:32,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133453177] [2024-11-28 03:24:32,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133453177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:32,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:32,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:32,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908205622] [2024-11-28 03:24:32,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:32,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:32,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:24:32,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:32,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:32,825 INFO L87 Difference]: Start difference. First operand 133 states and 180 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:24:32,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:32,867 INFO L93 Difference]: Finished difference Result 196 states and 264 transitions. [2024-11-28 03:24:32,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:32,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 126 [2024-11-28 03:24:32,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:32,874 INFO L225 Difference]: With dead ends: 196 [2024-11-28 03:24:32,874 INFO L226 Difference]: Without dead ends: 133 [2024-11-28 03:24:32,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:32,879 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:32,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:32,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-28 03:24:32,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 101. [2024-11-28 03:24:32,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 71 states have internal predecessors, (83), 25 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 03:24:32,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2024-11-28 03:24:32,903 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 126 [2024-11-28 03:24:32,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:32,903 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2024-11-28 03:24:32,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 03:24:32,904 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2024-11-28 03:24:32,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 03:24:32,906 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:32,906 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:32,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-28 03:24:33,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:24:33,107 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:33,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash 211502601, now seen corresponding path program 1 times [2024-11-28 03:24:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:24:33,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456537741] [2024-11-28 03:24:33,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:33,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 03:24:33,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:24:33,110 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 03:24:33,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a4543-ddae-40a2-93a3-0790a36deb5f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-28 03:24:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:33,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:24:33,350 INFO L279 TraceCheckSpWp]: Computing forward predicates...