./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-89.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_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/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_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/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_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/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 b61474e3055b599a740acd844baa39c957b5e0efc678fbcea6f4ee1ccd6cc136 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:13:32,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:13:32,250 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:13:32,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:13:32,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:13:32,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:13:32,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:13:32,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:13:32,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:13:32,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:13:32,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:13:32,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:13:32,317 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:13:32,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:13:32,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:13:32,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:13:32,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:13:32,318 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:13:32,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:13:32,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:13:32,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:13:32,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:13:32,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:13:32,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:13:32,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:13:32,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:13:32,320 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:13:32,320 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:13:32,320 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:13:32,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:32,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:32,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:32,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:32,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:13:32,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:13:32,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:13:32,322 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:13:32,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:32,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:13:32,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:13:32,323 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:13:32,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:13:32,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:13:32,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:13:32,324 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:13:32,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:13:32,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:13:32,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:13:32,324 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_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/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 -> b61474e3055b599a740acd844baa39c957b5e0efc678fbcea6f4ee1ccd6cc136 [2024-11-28 02:13:32,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:13:32,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:13:32,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:13:32,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:13:32,694 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:13:32,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-89.i [2024-11-28 02:13:36,135 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/data/777370b4a/3e03d4aeff604dedb6ebd65e4dbfd875/FLAG771650f04 [2024-11-28 02:13:36,477 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:13:36,478 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-89.i [2024-11-28 02:13:36,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/data/777370b4a/3e03d4aeff604dedb6ebd65e4dbfd875/FLAG771650f04 [2024-11-28 02:13:36,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/data/777370b4a/3e03d4aeff604dedb6ebd65e4dbfd875 [2024-11-28 02:13:36,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:13:36,527 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:13:36,529 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:36,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:13:36,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:13:36,537 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:36,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@298b3295 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36, skipping insertion in model container [2024-11-28 02:13:36,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:36,567 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:13:36,761 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_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-89.i[917,930] [2024-11-28 02:13:36,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:36,838 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:13:36,856 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_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-89.i[917,930] [2024-11-28 02:13:36,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:13:36,946 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:13:36,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36 WrapperNode [2024-11-28 02:13:36,947 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:13:36,948 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:36,949 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:13:36,949 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:13:36,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:36,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,026 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 140 [2024-11-28 02:13:37,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:13:37,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:13:37,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:13:37,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:13:37,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,052 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,087 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 02:13:37,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,101 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,124 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:13:37,129 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:13:37,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:13:37,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:13:37,134 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (1/1) ... [2024-11-28 02:13:37,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:13:37,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:37,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:13:37,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:13:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:13:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:13:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:13:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:13:37,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:13:37,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:13:37,305 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:13:37,307 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:13:37,725 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-28 02:13:37,726 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:13:37,738 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:13:37,738 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:13:37,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:37 BoogieIcfgContainer [2024-11-28 02:13:37,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:13:37,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:13:37,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:13:37,747 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:13:37,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:13:36" (1/3) ... [2024-11-28 02:13:37,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3d8fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:37, skipping insertion in model container [2024-11-28 02:13:37,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:13:36" (2/3) ... [2024-11-28 02:13:37,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3d8fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:13:37, skipping insertion in model container [2024-11-28 02:13:37,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:37" (3/3) ... [2024-11-28 02:13:37,751 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-89.i [2024-11-28 02:13:37,770 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:13:37,772 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_has-floats_file-89.i that has 2 procedures, 63 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:13:37,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:13:37,855 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;@5f9e9cf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:13:37,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:13:37,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:13:37,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:13:37,870 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:37,871 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:37,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:37,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1313284559, now seen corresponding path program 1 times [2024-11-28 02:13:37,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:37,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609588381] [2024-11-28 02:13:37,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 02:13:38,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:38,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609588381] [2024-11-28 02:13:38,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609588381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:38,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119650852] [2024-11-28 02:13:38,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:38,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:38,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:38,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:38,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:13:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:38,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:13:38,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:38,456 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 02:13:38,459 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:13:38,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119650852] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:38,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:13:38,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:13:38,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566068042] [2024-11-28 02:13:38,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:38,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:13:38,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:38,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:13:38,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:13:38,500 INFO L87 Difference]: Start difference. First operand has 63 states, 47 states have (on average 1.446808510638298) internal successors, (68), 48 states have internal predecessors, (68), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:13:38,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:38,544 INFO L93 Difference]: Finished difference Result 119 states and 195 transitions. [2024-11-28 02:13:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:13:38,546 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 87 [2024-11-28 02:13:38,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:38,559 INFO L225 Difference]: With dead ends: 119 [2024-11-28 02:13:38,560 INFO L226 Difference]: Without dead ends: 59 [2024-11-28 02:13:38,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 02:13:38,572 INFO L435 NwaCegarLoop]: 85 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, 85 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 02:13:38,575 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:38,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-28 02:13:38,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-11-28 02:13:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 44 states have internal predecessors, (59), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:13:38,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 85 transitions. [2024-11-28 02:13:38,662 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 85 transitions. Word has length 87 [2024-11-28 02:13:38,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:38,663 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 85 transitions. [2024-11-28 02:13:38,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:13:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2024-11-28 02:13:38,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:13:38,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:38,669 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:38,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:13:38,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:13:38,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:38,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:38,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1981552013, now seen corresponding path program 1 times [2024-11-28 02:13:38,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:38,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573306551] [2024-11-28 02:13:38,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:38,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:39,956 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:39,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:39,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573306551] [2024-11-28 02:13:39,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573306551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:39,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:39,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:13:39,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918543740] [2024-11-28 02:13:39,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:39,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:13:39,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:39,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:13:39,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:13:39,964 INFO L87 Difference]: Start difference. First operand 59 states and 85 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:40,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:40,349 INFO L93 Difference]: Finished difference Result 172 states and 250 transitions. [2024-11-28 02:13:40,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:13:40,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-28 02:13:40,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:40,353 INFO L225 Difference]: With dead ends: 172 [2024-11-28 02:13:40,353 INFO L226 Difference]: Without dead ends: 116 [2024-11-28 02:13:40,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:40,355 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 62 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:40,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 282 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:13:40,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-28 02:13:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 85. [2024-11-28 02:13:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 56 states have internal predecessors, (71), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:13:40,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-28 02:13:40,390 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 87 [2024-11-28 02:13:40,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:40,391 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-28 02:13:40,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:40,391 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-11-28 02:13:40,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:13:40,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:40,394 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:40,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:13:40,395 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:40,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:40,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1612350705, now seen corresponding path program 1 times [2024-11-28 02:13:40,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:40,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464959423] [2024-11-28 02:13:40,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:40,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:40,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:45,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:45,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464959423] [2024-11-28 02:13:45,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464959423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:45,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:45,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:45,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120998675] [2024-11-28 02:13:45,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:45,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:45,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:45,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:45,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:45,628 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:46,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:46,454 INFO L93 Difference]: Finished difference Result 170 states and 246 transitions. [2024-11-28 02:13:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:46,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-28 02:13:46,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:46,457 INFO L225 Difference]: With dead ends: 170 [2024-11-28 02:13:46,458 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 02:13:46,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:46,462 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 185 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:46,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 155 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:13:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 02:13:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 96. [2024-11-28 02:13:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 67 states have internal predecessors, (88), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:13:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 140 transitions. [2024-11-28 02:13:46,509 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 140 transitions. Word has length 87 [2024-11-28 02:13:46,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:46,509 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 140 transitions. [2024-11-28 02:13:46,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:46,510 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2024-11-28 02:13:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:13:46,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:46,515 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:46,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:13:46,516 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:46,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:46,516 INFO L85 PathProgramCache]: Analyzing trace with hash -932292335, now seen corresponding path program 1 times [2024-11-28 02:13:46,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:46,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696385962] [2024-11-28 02:13:46,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:46,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:49,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:49,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696385962] [2024-11-28 02:13:49,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696385962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:49,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:13:49,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024415435] [2024-11-28 02:13:49,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:49,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:13:49,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:49,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:13:49,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:13:49,813 INFO L87 Difference]: Start difference. First operand 96 states and 140 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:50,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:50,616 INFO L93 Difference]: Finished difference Result 181 states and 262 transitions. [2024-11-28 02:13:50,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:13:50,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2024-11-28 02:13:50,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:50,619 INFO L225 Difference]: With dead ends: 181 [2024-11-28 02:13:50,619 INFO L226 Difference]: Without dead ends: 114 [2024-11-28 02:13:50,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:13:50,621 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 123 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:50,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 173 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:13:50,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-28 02:13:50,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 85. [2024-11-28 02:13:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.25) internal successors, (70), 56 states have internal predecessors, (70), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:13:50,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 122 transitions. [2024-11-28 02:13:50,653 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 122 transitions. Word has length 87 [2024-11-28 02:13:50,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:50,653 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 122 transitions. [2024-11-28 02:13:50,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 122 transitions. [2024-11-28 02:13:50,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:13:50,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:50,659 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:50,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:13:50,660 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:50,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:50,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1191211448, now seen corresponding path program 1 times [2024-11-28 02:13:50,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:50,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725468944] [2024-11-28 02:13:50,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:50,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:51,932 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 02:13:51,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:51,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725468944] [2024-11-28 02:13:51,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725468944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:51,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989422653] [2024-11-28 02:13:51,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:51,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:51,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:51,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:51,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:13:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:52,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:13:52,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 96 proven. 30 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:13:53,119 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:53,583 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:53,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989422653] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:53,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:13:53,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 11] total 25 [2024-11-28 02:13:53,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098446733] [2024-11-28 02:13:53,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:53,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:13:53,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:53,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:13:53,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:13:53,588 INFO L87 Difference]: Start difference. First operand 85 states and 122 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:53,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:53,988 INFO L93 Difference]: Finished difference Result 92 states and 129 transitions. [2024-11-28 02:13:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:13:53,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2024-11-28 02:13:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:53,990 INFO L225 Difference]: With dead ends: 92 [2024-11-28 02:13:53,990 INFO L226 Difference]: Without dead ends: 90 [2024-11-28 02:13:53,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:13:53,992 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 76 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:53,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 381 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:13:53,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-28 02:13:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2024-11-28 02:13:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 60 states have internal predecessors, (74), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:13:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 126 transitions. [2024-11-28 02:13:54,011 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 126 transitions. Word has length 89 [2024-11-28 02:13:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:54,011 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 126 transitions. [2024-11-28 02:13:54,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 126 transitions. [2024-11-28 02:13:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:13:54,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:54,013 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:54,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:54,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:54,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:54,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:54,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1611278920, now seen corresponding path program 1 times [2024-11-28 02:13:54,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:54,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451370235] [2024-11-28 02:13:54,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:54,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:54,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:54,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451370235] [2024-11-28 02:13:54,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451370235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:54,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:54,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:13:54,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54076976] [2024-11-28 02:13:54,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:54,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:13:54,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:54,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:13:54,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:13:54,454 INFO L87 Difference]: Start difference. First operand 89 states and 126 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:54,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:54,588 INFO L93 Difference]: Finished difference Result 155 states and 218 transitions. [2024-11-28 02:13:54,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:13:54,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 91 [2024-11-28 02:13:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:54,590 INFO L225 Difference]: With dead ends: 155 [2024-11-28 02:13:54,590 INFO L226 Difference]: Without dead ends: 95 [2024-11-28 02:13:54,591 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 02:13:54,595 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:54,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 148 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:13:54,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-28 02:13:54,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2024-11-28 02:13:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 63 states have (on average 1.2222222222222223) internal successors, (77), 63 states have internal predecessors, (77), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:13:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-11-28 02:13:54,614 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 91 [2024-11-28 02:13:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:54,614 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-11-28 02:13:54,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-11-28 02:13:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 02:13:54,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:54,616 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:54,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:13:54,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:54,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1697688837, now seen corresponding path program 1 times [2024-11-28 02:13:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421654789] [2024-11-28 02:13:54,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:54,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-28 02:13:55,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421654789] [2024-11-28 02:13:55,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421654789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838482405] [2024-11-28 02:13:55,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:55,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:55,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:13:55,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:13:55,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:13:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:56,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-28 02:13:56,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:13:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 63 proven. 63 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-28 02:13:57,206 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:13:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:57,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838482405] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:13:57,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:13:57,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 12] total 28 [2024-11-28 02:13:57,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108787242] [2024-11-28 02:13:57,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:57,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:13:57,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:57,717 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:13:57,717 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:13:57,717 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:58,155 INFO L93 Difference]: Finished difference Result 100 states and 137 transitions. [2024-11-28 02:13:58,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:13:58,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2024-11-28 02:13:58,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:58,158 INFO L225 Difference]: With dead ends: 100 [2024-11-28 02:13:58,158 INFO L226 Difference]: Without dead ends: 98 [2024-11-28 02:13:58,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=725, Unknown=0, NotChecked=0, Total=870 [2024-11-28 02:13:58,160 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 74 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:58,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 386 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:13:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-28 02:13:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 93. [2024-11-28 02:13:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 64 states have (on average 1.21875) internal successors, (78), 64 states have internal predecessors, (78), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-28 02:13:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 130 transitions. [2024-11-28 02:13:58,180 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 130 transitions. Word has length 92 [2024-11-28 02:13:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:58,181 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 130 transitions. [2024-11-28 02:13:58,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 130 transitions. [2024-11-28 02:13:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 02:13:58,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:58,183 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:58,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:13:58,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:13:58,387 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:58,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:58,388 INFO L85 PathProgramCache]: Analyzing trace with hash 336284300, now seen corresponding path program 1 times [2024-11-28 02:13:58,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:58,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663288257] [2024-11-28 02:13:58,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:58,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:58,474 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:58,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:58,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663288257] [2024-11-28 02:13:58,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663288257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:58,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:58,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:13:58,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658843936] [2024-11-28 02:13:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:58,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:13:58,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:58,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:13:58,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:13:58,478 INFO L87 Difference]: Start difference. First operand 93 states and 130 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:58,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:58,544 INFO L93 Difference]: Finished difference Result 186 states and 255 transitions. [2024-11-28 02:13:58,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:13:58,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 94 [2024-11-28 02:13:58,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:58,548 INFO L225 Difference]: With dead ends: 186 [2024-11-28 02:13:58,548 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 02:13:58,548 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 02:13:58,549 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 31 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:58,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 158 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:13:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 02:13:58,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-28 02:13:58,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 83 states have (on average 1.180722891566265) internal successors, (98), 84 states have internal predecessors, (98), 33 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 02:13:58,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2024-11-28 02:13:58,597 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 94 [2024-11-28 02:13:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:58,597 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2024-11-28 02:13:58,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2024-11-28 02:13:58,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 02:13:58,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:58,599 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:58,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:13:58,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:58,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:58,604 INFO L85 PathProgramCache]: Analyzing trace with hash -264431386, now seen corresponding path program 1 times [2024-11-28 02:13:58,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:58,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134002325] [2024-11-28 02:13:58,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:58,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:58,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:13:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:13:58,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:13:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134002325] [2024-11-28 02:13:58,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134002325] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:13:58,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:13:58,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:13:58,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19287713] [2024-11-28 02:13:58,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:13:58,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:13:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:13:58,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:13:58,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:13:58,706 INFO L87 Difference]: Start difference. First operand 121 states and 164 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:13:59,000 INFO L93 Difference]: Finished difference Result 363 states and 492 transitions. [2024-11-28 02:13:59,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:13:59,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2024-11-28 02:13:59,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:13:59,009 INFO L225 Difference]: With dead ends: 363 [2024-11-28 02:13:59,009 INFO L226 Difference]: Without dead ends: 275 [2024-11-28 02:13:59,009 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 02:13:59,014 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 153 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:13:59,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 153 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:13:59,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-28 02:13:59,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 212. [2024-11-28 02:13:59,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 152 states have (on average 1.1710526315789473) internal successors, (178), 154 states have internal predecessors, (178), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:13:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 284 transitions. [2024-11-28 02:13:59,093 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 284 transitions. Word has length 95 [2024-11-28 02:13:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:13:59,094 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 284 transitions. [2024-11-28 02:13:59,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:13:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 284 transitions. [2024-11-28 02:13:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 02:13:59,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:13:59,095 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:59,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:13:59,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:13:59,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:13:59,100 INFO L85 PathProgramCache]: Analyzing trace with hash -867068570, now seen corresponding path program 1 times [2024-11-28 02:13:59,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:13:59,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752858459] [2024-11-28 02:13:59,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:13:59,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:13:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:14:01,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:01,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752858459] [2024-11-28 02:14:01,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752858459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:01,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:01,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:14:01,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354020738] [2024-11-28 02:14:01,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:01,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:14:01,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:01,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:14:01,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:14:01,281 INFO L87 Difference]: Start difference. First operand 212 states and 284 transitions. Second operand has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:03,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:03,822 INFO L93 Difference]: Finished difference Result 263 states and 336 transitions. [2024-11-28 02:14:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 02:14:03,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-28 02:14:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:03,826 INFO L225 Difference]: With dead ends: 263 [2024-11-28 02:14:03,827 INFO L226 Difference]: Without dead ends: 261 [2024-11-28 02:14:03,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=248, Invalid=942, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 02:14:03,829 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 145 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:03,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 596 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 02:14:03,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-28 02:14:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 224. [2024-11-28 02:14:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 164 states have (on average 1.170731707317073) internal successors, (192), 166 states have internal predecessors, (192), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:14:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 298 transitions. [2024-11-28 02:14:03,873 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 298 transitions. Word has length 105 [2024-11-28 02:14:03,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:03,874 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 298 transitions. [2024-11-28 02:14:03,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 14 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 298 transitions. [2024-11-28 02:14:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 02:14:03,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:03,876 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:03,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:14:03,876 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:03,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:03,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1127076136, now seen corresponding path program 1 times [2024-11-28 02:14:03,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:03,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210641665] [2024-11-28 02:14:03,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:03,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-28 02:14:04,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:04,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210641665] [2024-11-28 02:14:04,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210641665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:04,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:04,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:14:04,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111705725] [2024-11-28 02:14:04,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:04,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:14:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:04,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:14:04,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:14:04,002 INFO L87 Difference]: Start difference. First operand 224 states and 298 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:04,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:04,149 INFO L93 Difference]: Finished difference Result 399 states and 533 transitions. [2024-11-28 02:14:04,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:14:04,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 105 [2024-11-28 02:14:04,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:04,152 INFO L225 Difference]: With dead ends: 399 [2024-11-28 02:14:04,153 INFO L226 Difference]: Without dead ends: 208 [2024-11-28 02:14:04,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:14:04,154 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 40 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:04,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 192 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:14:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-28 02:14:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-28 02:14:04,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 148 states have (on average 1.162162162162162) internal successors, (172), 150 states have internal predecessors, (172), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:14:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-11-28 02:14:04,190 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 105 [2024-11-28 02:14:04,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:04,190 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-11-28 02:14:04,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-11-28 02:14:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-28 02:14:04,194 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:04,194 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:04,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:14:04,194 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:04,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:04,195 INFO L85 PathProgramCache]: Analyzing trace with hash 821982124, now seen corresponding path program 1 times [2024-11-28 02:14:04,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:04,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316183760] [2024-11-28 02:14:04,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:04,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1322 trivial. 0 not checked. [2024-11-28 02:14:08,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:08,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316183760] [2024-11-28 02:14:08,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316183760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:08,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:08,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 02:14:08,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421040857] [2024-11-28 02:14:08,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:08,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 02:14:08,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:08,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 02:14:08,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:14:08,341 INFO L87 Difference]: Start difference. First operand 208 states and 278 transitions. Second operand has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:09,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:09,971 INFO L93 Difference]: Finished difference Result 408 states and 542 transitions. [2024-11-28 02:14:09,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:14:09,972 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 181 [2024-11-28 02:14:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:09,976 INFO L225 Difference]: With dead ends: 408 [2024-11-28 02:14:09,976 INFO L226 Difference]: Without dead ends: 315 [2024-11-28 02:14:09,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:14:09,978 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 90 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:09,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 807 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:14:09,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-28 02:14:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 293. [2024-11-28 02:14:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 215 states have (on average 1.1813953488372093) internal successors, (254), 219 states have internal predecessors, (254), 69 states have call successors, (69), 8 states have call predecessors, (69), 8 states have return successors, (69), 65 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:14:10,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 392 transitions. [2024-11-28 02:14:10,042 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 392 transitions. Word has length 181 [2024-11-28 02:14:10,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:10,043 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 392 transitions. [2024-11-28 02:14:10,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 13 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:10,043 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 392 transitions. [2024-11-28 02:14:10,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-28 02:14:10,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:10,048 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:10,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:14:10,049 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:10,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:10,049 INFO L85 PathProgramCache]: Analyzing trace with hash -181504122, now seen corresponding path program 1 times [2024-11-28 02:14:10,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:10,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685152344] [2024-11-28 02:14:10,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:10,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:10,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-28 02:14:10,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:10,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685152344] [2024-11-28 02:14:10,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685152344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:10,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:10,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:14:10,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047165283] [2024-11-28 02:14:10,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:10,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:14:10,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:10,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:14:10,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:14:10,351 INFO L87 Difference]: Start difference. First operand 293 states and 392 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:10,599 INFO L93 Difference]: Finished difference Result 654 states and 877 transitions. [2024-11-28 02:14:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:14:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 187 [2024-11-28 02:14:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:10,606 INFO L225 Difference]: With dead ends: 654 [2024-11-28 02:14:10,608 INFO L226 Difference]: Without dead ends: 476 [2024-11-28 02:14:10,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 02:14:10,610 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 145 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:10,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 223 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:14:10,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-28 02:14:10,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 408. [2024-11-28 02:14:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 290 states have (on average 1.1275862068965516) internal successors, (327), 297 states have internal predecessors, (327), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 02:14:10,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 537 transitions. [2024-11-28 02:14:10,734 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 537 transitions. Word has length 187 [2024-11-28 02:14:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:10,734 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 537 transitions. [2024-11-28 02:14:10,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 537 transitions. [2024-11-28 02:14:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-28 02:14:10,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:10,738 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:10,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:14:10,738 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:10,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:10,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1603055788, now seen corresponding path program 1 times [2024-11-28 02:14:10,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:10,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721248264] [2024-11-28 02:14:10,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:10,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-28 02:14:12,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:12,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721248264] [2024-11-28 02:14:12,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721248264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:12,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:12,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:14:12,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084459943] [2024-11-28 02:14:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:12,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:14:12,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:12,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:14:12,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:14:12,935 INFO L87 Difference]: Start difference. First operand 408 states and 537 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:13,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:13,978 INFO L93 Difference]: Finished difference Result 535 states and 668 transitions. [2024-11-28 02:14:13,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 02:14:13,979 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 191 [2024-11-28 02:14:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:13,984 INFO L225 Difference]: With dead ends: 535 [2024-11-28 02:14:13,984 INFO L226 Difference]: Without dead ends: 533 [2024-11-28 02:14:13,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2024-11-28 02:14:13,985 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 165 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:13,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 597 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:14:13,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-11-28 02:14:14,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 432. [2024-11-28 02:14:14,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 314 states have (on average 1.1305732484076434) internal successors, (355), 321 states have internal predecessors, (355), 105 states have call successors, (105), 12 states have call predecessors, (105), 12 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-28 02:14:14,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 565 transitions. [2024-11-28 02:14:14,085 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 565 transitions. Word has length 191 [2024-11-28 02:14:14,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:14,085 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 565 transitions. [2024-11-28 02:14:14,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:14,086 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 565 transitions. [2024-11-28 02:14:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-28 02:14:14,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:14,090 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:14,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:14:14,090 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:14,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:14,090 INFO L85 PathProgramCache]: Analyzing trace with hash -697766802, now seen corresponding path program 1 times [2024-11-28 02:14:14,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:14,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290305988] [2024-11-28 02:14:14,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:14,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1333 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1323 trivial. 0 not checked. [2024-11-28 02:14:14,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:14,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290305988] [2024-11-28 02:14:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290305988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:14,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:14,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:14:14,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330484482] [2024-11-28 02:14:14,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:14,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:14:14,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:14,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:14:14,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:14:14,407 INFO L87 Difference]: Start difference. First operand 432 states and 565 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:14,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:14,715 INFO L93 Difference]: Finished difference Result 796 states and 1043 transitions. [2024-11-28 02:14:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:14:14,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 191 [2024-11-28 02:14:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:14,719 INFO L225 Difference]: With dead ends: 796 [2024-11-28 02:14:14,719 INFO L226 Difference]: Without dead ends: 479 [2024-11-28 02:14:14,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:14:14,721 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 137 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:14,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 357 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:14:14,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-28 02:14:14,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 329. [2024-11-28 02:14:14,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 233 states have (on average 1.1158798283261802) internal successors, (260), 239 states have internal predecessors, (260), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 02:14:14,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 430 transitions. [2024-11-28 02:14:14,802 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 430 transitions. Word has length 191 [2024-11-28 02:14:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:14,803 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 430 transitions. [2024-11-28 02:14:14,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 430 transitions. [2024-11-28 02:14:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-28 02:14:14,808 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:14,808 INFO L218 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:14,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:14:14,809 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:14,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash 115108212, now seen corresponding path program 2 times [2024-11-28 02:14:14,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891570753] [2024-11-28 02:14:14,810 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:14:14,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:14,848 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:14:14,848 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:14:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3044 trivial. 0 not checked. [2024-11-28 02:14:16,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891570753] [2024-11-28 02:14:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891570753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:16,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:16,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-28 02:14:16,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227953647] [2024-11-28 02:14:16,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:16,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:14:16,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:16,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:14:16,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:14:16,497 INFO L87 Difference]: Start difference. First operand 329 states and 430 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:17,357 INFO L93 Difference]: Finished difference Result 373 states and 473 transitions. [2024-11-28 02:14:17,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 02:14:17,358 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 267 [2024-11-28 02:14:17,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:17,363 INFO L225 Difference]: With dead ends: 373 [2024-11-28 02:14:17,363 INFO L226 Difference]: Without dead ends: 371 [2024-11-28 02:14:17,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:14:17,366 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:17,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 506 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:14:17,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-28 02:14:17,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 325. [2024-11-28 02:14:17,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 229 states have (on average 1.1135371179039302) internal successors, (255), 235 states have internal predecessors, (255), 85 states have call successors, (85), 10 states have call predecessors, (85), 10 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-28 02:14:17,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 425 transitions. [2024-11-28 02:14:17,453 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 425 transitions. Word has length 267 [2024-11-28 02:14:17,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:17,454 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 425 transitions. [2024-11-28 02:14:17,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 425 transitions. [2024-11-28 02:14:17,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-28 02:14:17,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:14:17,462 INFO L218 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:17,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:14:17,462 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:14:17,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:14:17,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1042737457, now seen corresponding path program 1 times [2024-11-28 02:14:17,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:14:17,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863660722] [2024-11-28 02:14:17,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:14:17,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:14:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:14:17,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3064 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3050 trivial. 0 not checked. [2024-11-28 02:14:17,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:14:17,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863660722] [2024-11-28 02:14:17,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863660722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:14:17,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:14:17,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:14:17,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7590754] [2024-11-28 02:14:17,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:14:17,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:14:17,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:14:17,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:14:17,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:14:17,610 INFO L87 Difference]: Start difference. First operand 325 states and 425 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:17,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:14:17,777 INFO L93 Difference]: Finished difference Result 713 states and 940 transitions. [2024-11-28 02:14:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:14:17,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 272 [2024-11-28 02:14:17,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:14:17,781 INFO L225 Difference]: With dead ends: 713 [2024-11-28 02:14:17,781 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:14:17,783 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 02:14:17,786 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 55 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:14:17,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 189 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:14:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:14:17,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:14:17,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:14:17,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:14:17,789 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 272 [2024-11-28 02:14:17,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:14:17,789 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:14:17,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-28 02:14:17,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:14:17,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:14:17,793 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:14:17,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:14:17,797 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:14:17,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:14:45,500 WARN L286 SmtUtils]: Spent 27.32s on a formula simplification. DAG size of input: 268 DAG size of output: 308 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-28 02:14:53,089 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:14:53,114 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:14:53 BoogieIcfgContainer [2024-11-28 02:14:53,114 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:14:53,115 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:14:53,115 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:14:53,115 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:14:53,118 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:13:37" (3/4) ... [2024-11-28 02:14:53,120 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:14:53,127 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 02:14:53,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 02:14:53,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 02:14:53,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:14:53,134 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:14:53,252 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:14:53,255 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:14:53,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:14:53,256 INFO L158 Benchmark]: Toolchain (without parser) took 76728.83ms. Allocated memory was 142.6MB in the beginning and 771.8MB in the end (delta: 629.1MB). Free memory was 106.2MB in the beginning and 728.5MB in the end (delta: -622.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-11-28 02:14:53,256 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:14:53,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.97ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 93.1MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:14:53,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.27ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 90.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:14:53,257 INFO L158 Benchmark]: Boogie Preprocessor took 96.28ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 87.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:14:53,257 INFO L158 Benchmark]: RCFGBuilder took 610.57ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 68.6MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:14:53,257 INFO L158 Benchmark]: TraceAbstraction took 75373.11ms. Allocated memory was 142.6MB in the beginning and 771.8MB in the end (delta: 629.1MB). Free memory was 67.9MB in the beginning and 732.9MB in the end (delta: -665.0MB). Peak memory consumption was 420.6MB. Max. memory is 16.1GB. [2024-11-28 02:14:53,258 INFO L158 Benchmark]: Witness Printer took 139.61ms. Allocated memory is still 771.8MB. Free memory was 732.9MB in the beginning and 728.5MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:14:53,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.97ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 93.1MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.27ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 90.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.28ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 87.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 610.57ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 68.6MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 75373.11ms. Allocated memory was 142.6MB in the beginning and 771.8MB in the end (delta: 629.1MB). Free memory was 67.9MB in the beginning and 732.9MB in the end (delta: -665.0MB). Peak memory consumption was 420.6MB. Max. memory is 16.1GB. * Witness Printer took 139.61ms. Allocated memory is still 771.8MB. Free memory was 732.9MB in the beginning and 728.5MB in the end (delta: 4.4MB). 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.0s, OverallIterations: 17, TraceHistogramMax: 39, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1582 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1582 mSDsluCounter, 5388 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3748 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3766 IncrementalHoareTripleChecker+Invalid, 3888 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 1640 mSDtfsCounter, 3766 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 648 GetRequests, 473 SyntacticMatches, 3 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred in iteration=14, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 17 MinimizatonAttempts, 575 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 26.0s InterpolantComputationTime, 2576 NumberOfCodeBlocks, 2339 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2735 ConstructedInterpolants, 0 QuantifiedInterpolants, 12027 SizeOfPredicates, 12 NumberOfNonLiveVariables, 647 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 22 InterpolantComputations, 17 PerfectInterpolantSequences, 16263/16452 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: ((((((((var_1_8 != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((3 + var_1_10) < var_1_9) || (var_1_8 == ((252 + var_1_9) % 256))) && (((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)) <= 127))) && ((var_1_8 == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))) || ((((((3 + var_1_10) < var_1_9) || ((256 + var_1_8) == ((252 + var_1_9) % 256))) && (128 <= ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) || ((256 + var_1_8) != ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256)))) && (((((var_1_9 <= (3 + var_1_10)) && ((256 + var_1_8) == ((252 + var_1_9) % 256))) || (((252 + var_1_9) % 256) < 128)) && ((127 < ((252 + var_1_9) % 256)) || ((var_1_8 == ((252 + var_1_9) % 256)) && (var_1_9 <= (3 + var_1_10))))) || ((256 + var_1_8) == ((var_1_10 >= 0) ? (var_1_10 % 256) : ((var_1_10 % 256) + 256))))))) || (last_1_var_1_14 < (last_1_var_1_15 + 1))) && (var_1_13 == var_1_10)) && (var_1_8 == var_1_14)) && (var_1_15 == var_1_3)) || (((((((((((9 + last_1_var_1_14) <= last_1_var_1_15) && (0 <= 0)) && ((var_1_8 + 1) <= 0)) && (((var_1_14 / var_1_3) + 1) <= var_1_14)) && ((9 + var_1_14) <= var_1_15)) && ((var_1_7 == 0) || (var_1_5 == 0))) && (16 <= var_1_14)) && (var_1_15 <= 25)) && (var_1_1 == 0)) && (0 <= (((var_1_8 >= 0) ? (var_1_8 / 65536) : ((var_1_8 / 65536) - 1)) + 1)))) RESULT: Ultimate proved your program to be correct! [2024-11-28 02:14:53,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229e6ec-ab6a-4897-b1f1-5c15e53b4d8d/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 Writing output log to file Ultimate.log Result: TRUE