./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-68.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_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/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_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-68.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/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_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/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 1123f6113f06d17f462c885d49081665f821b5af861fd1db9616aecb6705c7c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:07:15,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:07:15,163 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:07:15,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:07:15,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:07:15,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:07:15,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:07:15,204 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:07:15,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:07:15,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:07:15,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:07:15,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:07:15,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:07:15,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:07:15,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:07:15,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:07:15,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:07:15,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:07:15,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:07:15,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:07:15,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:07:15,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:07:15,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:07:15,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:07:15,208 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:07:15,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:07:15,208 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:07:15,208 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:07:15,208 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:07:15,209 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:15,209 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:07:15,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:07:15,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:15,209 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:07:15,210 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:07:15,210 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:07:15,210 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:07:15,210 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:15,210 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:07:15,211 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:07:15,211 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:07:15,211 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:07:15,211 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:07:15,211 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:07:15,212 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:07:15,212 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:07:15,212 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:07:15,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:07:15,212 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_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/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 -> 1123f6113f06d17f462c885d49081665f821b5af861fd1db9616aecb6705c7c4 [2024-11-27 20:07:15,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:07:15,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:07:15,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:07:15,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:07:15,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:07:15,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-68.i [2024-11-27 20:07:19,444 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/data/3536e31f7/b99b9bdc50c54f38a8b4416ac4e089f7/FLAGc1c37871b [2024-11-27 20:07:19,800 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:07:19,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-68.i [2024-11-27 20:07:19,810 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/data/3536e31f7/b99b9bdc50c54f38a8b4416ac4e089f7/FLAGc1c37871b [2024-11-27 20:07:20,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/data/3536e31f7/b99b9bdc50c54f38a8b4416ac4e089f7 [2024-11-27 20:07:20,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:07:20,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:07:20,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:20,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:07:20,093 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:07:20,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc6545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20, skipping insertion in model container [2024-11-27 20:07:20,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:07:20,311 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_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-68.i[916,929] [2024-11-27 20:07:20,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:20,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:07:20,418 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_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-68.i[916,929] [2024-11-27 20:07:20,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:07:20,472 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:07:20,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20 WrapperNode [2024-11-27 20:07:20,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:07:20,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:20,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:07:20,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:07:20,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,534 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 132 [2024-11-27 20:07:20,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:07:20,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:07:20,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:07:20,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:07:20,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,592 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]. [2024-11-27 20:07:20,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,601 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,606 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:07:20,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:07:20,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:07:20,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:07:20,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (1/1) ... [2024-11-27 20:07:20,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:07:20,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:20,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:07:20,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:07:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:07:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:07:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:07:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:07:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:07:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:07:20,877 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:07:20,879 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:07:21,330 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-27 20:07:21,332 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:07:21,351 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:07:21,354 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:07:21,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:21 BoogieIcfgContainer [2024-11-27 20:07:21,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:07:21,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:07:21,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:07:21,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:07:21,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:07:20" (1/3) ... [2024-11-27 20:07:21,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b1c1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:07:21, skipping insertion in model container [2024-11-27 20:07:21,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:07:20" (2/3) ... [2024-11-27 20:07:21,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b1c1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:07:21, skipping insertion in model container [2024-11-27 20:07:21,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:21" (3/3) ... [2024-11-27 20:07:21,374 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-68.i [2024-11-27 20:07:21,398 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:07:21,400 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_floatingpointinfluence_no-floats_file-68.i that has 2 procedures, 58 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:07:21,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:07:21,492 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;@40318cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:07:21,492 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:07:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:07:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:07:21,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:21,517 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:21,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:21,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1645401735, now seen corresponding path program 1 times [2024-11-27 20:07:21,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:21,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20663970] [2024-11-27 20:07:21,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-27 20:07:21,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:07:21,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20663970] [2024-11-27 20:07:21,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20663970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:07:21,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192462367] [2024-11-27 20:07:21,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:21,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:07:21,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:07:21,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:07:22,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:07:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:07:22,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:07:22,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:07:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-27 20:07:22,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:07:22,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192462367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:07:22,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:07:22,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:07:22,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693973038] [2024-11-27 20:07:22,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:07:22,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:07:22,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:07:22,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:07:22,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:07:22,426 INFO L87 Difference]: Start difference. First operand has 58 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-27 20:07:22,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:07:22,475 INFO L93 Difference]: Finished difference Result 109 states and 189 transitions. [2024-11-27 20:07:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:07:22,482 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 130 [2024-11-27 20:07:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:07:22,496 INFO L225 Difference]: With dead ends: 109 [2024-11-27 20:07:22,496 INFO L226 Difference]: Without dead ends: 54 [2024-11-27 20:07:22,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:07:22,507 INFO L435 NwaCegarLoop]: 80 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, 80 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 [2024-11-27 20:07:22,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:07:22,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-27 20:07:22,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-27 20:07:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:07:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2024-11-27 20:07:22,580 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 130 [2024-11-27 20:07:22,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:07:22,580 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2024-11-27 20:07:22,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-27 20:07:22,581 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2024-11-27 20:07:22,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:07:22,588 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:07:22,588 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:07:22,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:07:22,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:07:22,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:07:22,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:07:22,790 INFO L85 PathProgramCache]: Analyzing trace with hash -188508037, now seen corresponding path program 1 times [2024-11-27 20:07:22,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:07:22,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794919355] [2024-11-27 20:07:22,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:07:22,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:07:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:21,774 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:08:21,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794919355] [2024-11-27 20:08:21,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794919355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:21,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:21,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:08:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429563191] [2024-11-27 20:08:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:21,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:08:21,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:21,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:08:21,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:08:21,781 INFO L87 Difference]: Start difference. First operand 54 states and 80 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:08:27,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:08:27,829 INFO L93 Difference]: Finished difference Result 81 states and 111 transitions. [2024-11-27 20:08:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:08:27,830 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130 [2024-11-27 20:08:27,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:08:27,832 INFO L225 Difference]: With dead ends: 81 [2024-11-27 20:08:27,835 INFO L226 Difference]: Without dead ends: 79 [2024-11-27 20:08:27,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:08:27,836 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 26 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:08:27,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 342 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:08:27,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-27 20:08:27,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 62. [2024-11-27 20:08:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:08:27,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 91 transitions. [2024-11-27 20:08:27,855 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 91 transitions. Word has length 130 [2024-11-27 20:08:27,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:08:27,857 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 91 transitions. [2024-11-27 20:08:27,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:08:27,858 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 91 transitions. [2024-11-27 20:08:27,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:08:27,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:08:27,860 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:08:27,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:08:27,861 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:08:27,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:27,862 INFO L85 PathProgramCache]: Analyzing trace with hash -186660995, now seen corresponding path program 1 times [2024-11-27 20:08:27,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:27,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746966840] [2024-11-27 20:08:27,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:27,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:09:33,678 WARN L286 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 224 DAG size of output: 173 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:09:53,445 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:09:53,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:09:53,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746966840] [2024-11-27 20:09:53,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746966840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:09:53,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:09:53,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-27 20:09:53,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506657023] [2024-11-27 20:09:53,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:09:53,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:09:53,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:09:53,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:09:53,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:09:53,452 INFO L87 Difference]: Start difference. First operand 62 states and 91 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:09:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:09:59,910 INFO L93 Difference]: Finished difference Result 88 states and 121 transitions. [2024-11-27 20:09:59,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:09:59,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130 [2024-11-27 20:09:59,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:09:59,913 INFO L225 Difference]: With dead ends: 88 [2024-11-27 20:09:59,913 INFO L226 Difference]: Without dead ends: 86 [2024-11-27 20:09:59,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:09:59,914 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 34 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:09:59,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 377 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:09:59,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-27 20:09:59,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 65. [2024-11-27 20:09:59,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 42 states have internal predecessors, (54), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:09:59,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2024-11-27 20:09:59,926 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 130 [2024-11-27 20:09:59,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:09:59,927 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2024-11-27 20:09:59,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:09:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2024-11-27 20:09:59,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:09:59,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:09:59,931 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:09:59,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:09:59,932 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:09:59,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:09:59,933 INFO L85 PathProgramCache]: Analyzing trace with hash 47913339, now seen corresponding path program 1 times [2024-11-27 20:09:59,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:09:59,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624387656] [2024-11-27 20:09:59,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:09:59,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:09:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:00,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:00,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624387656] [2024-11-27 20:10:00,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624387656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:00,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:00,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:00,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231594754] [2024-11-27 20:10:00,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:00,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:00,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:00,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:00,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:00,036 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:00,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:00,077 INFO L93 Difference]: Finished difference Result 150 states and 219 transitions. [2024-11-27 20:10:00,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:00,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130 [2024-11-27 20:10:00,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:00,083 INFO L225 Difference]: With dead ends: 150 [2024-11-27 20:10:00,083 INFO L226 Difference]: Without dead ends: 88 [2024-11-27 20:10:00,085 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 [2024-11-27 20:10:00,086 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 34 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:00,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 148 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:10:00,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-27 20:10:00,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 85. [2024-11-27 20:10:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 55 states have internal predecessors, (67), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:10:00,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-27 20:10:00,104 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 130 [2024-11-27 20:10:00,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:00,104 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-27 20:10:00,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:00,105 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-11-27 20:10:00,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:10:00,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:00,107 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:00,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:10:00,108 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:00,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:00,109 INFO L85 PathProgramCache]: Analyzing trace with hash 49760381, now seen corresponding path program 1 times [2024-11-27 20:10:00,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:00,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544996705] [2024-11-27 20:10:00,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:00,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:09,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544996705] [2024-11-27 20:10:09,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544996705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:09,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:09,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:10:09,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409245844] [2024-11-27 20:10:09,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:09,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:10:09,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:09,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:10:09,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:10:09,086 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:10,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:10,080 INFO L93 Difference]: Finished difference Result 118 states and 162 transitions. [2024-11-27 20:10:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:10:10,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130 [2024-11-27 20:10:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:10,084 INFO L225 Difference]: With dead ends: 118 [2024-11-27 20:10:10,084 INFO L226 Difference]: Without dead ends: 116 [2024-11-27 20:10:10,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:10:10,086 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 36 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:10,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 428 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:10:10,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-27 20:10:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 85. [2024-11-27 20:10:10,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 55 states have internal predecessors, (67), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:10:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 123 transitions. [2024-11-27 20:10:10,104 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 123 transitions. Word has length 130 [2024-11-27 20:10:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:10,105 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 123 transitions. [2024-11-27 20:10:10,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 123 transitions. [2024-11-27 20:10:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-27 20:10:10,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:10,107 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:10,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:10:10,107 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:10,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:10,109 INFO L85 PathProgramCache]: Analyzing trace with hash 622685631, now seen corresponding path program 1 times [2024-11-27 20:10:10,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417960429] [2024-11-27 20:10:10,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:10,211 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:10,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:10,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417960429] [2024-11-27 20:10:10,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417960429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:10,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:10,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:10:10,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457103067] [2024-11-27 20:10:10,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:10,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:10:10,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:10,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:10:10,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:10:10,214 INFO L87 Difference]: Start difference. First operand 85 states and 123 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:10,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:10,249 INFO L93 Difference]: Finished difference Result 164 states and 238 transitions. [2024-11-27 20:10:10,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:10:10,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 130 [2024-11-27 20:10:10,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:10,252 INFO L225 Difference]: With dead ends: 164 [2024-11-27 20:10:10,252 INFO L226 Difference]: Without dead ends: 82 [2024-11-27 20:10:10,254 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 [2024-11-27 20:10:10,257 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:10,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:10:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-27 20:10:10,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-27 20:10:10,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 52 states have internal predecessors, (60), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:10:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2024-11-27 20:10:10,284 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 130 [2024-11-27 20:10:10,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:10,287 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2024-11-27 20:10:10,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:10,288 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2024-11-27 20:10:10,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:10:10,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:10,290 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:10,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:10:10,290 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:10,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:10,292 INFO L85 PathProgramCache]: Analyzing trace with hash -185337166, now seen corresponding path program 1 times [2024-11-27 20:10:10,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:10,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144685103] [2024-11-27 20:10:10,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:10,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:10:49,822 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:10:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:10:49,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144685103] [2024-11-27 20:10:49,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144685103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:10:49,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:10:49,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:10:49,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216832292] [2024-11-27 20:10:49,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:10:49,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:10:49,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:10:49,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:10:49,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:10:49,825 INFO L87 Difference]: Start difference. First operand 82 states and 116 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:10:56,668 INFO L93 Difference]: Finished difference Result 124 states and 162 transitions. [2024-11-27 20:10:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:10:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-27 20:10:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:10:56,671 INFO L225 Difference]: With dead ends: 124 [2024-11-27 20:10:56,671 INFO L226 Difference]: Without dead ends: 122 [2024-11-27 20:10:56,671 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:10:56,672 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 42 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:10:56,672 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 395 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:10:56,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-27 20:10:56,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 90. [2024-11-27 20:10:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 60 states have internal predecessors, (70), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:10:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2024-11-27 20:10:56,701 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 126 transitions. Word has length 131 [2024-11-27 20:10:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:10:56,701 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 126 transitions. [2024-11-27 20:10:56,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:10:56,705 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 126 transitions. [2024-11-27 20:10:56,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:10:56,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:10:56,708 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:10:56,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:10:56,708 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:10:56,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:10:56,709 INFO L85 PathProgramCache]: Analyzing trace with hash -183490124, now seen corresponding path program 1 times [2024-11-27 20:10:56,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:10:56,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401809194] [2024-11-27 20:10:56,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:10:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:10:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:16,033 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:12:16,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:16,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401809194] [2024-11-27 20:12:16,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401809194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:16,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:16,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:12:16,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305879102] [2024-11-27 20:12:16,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:16,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:12:16,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:16,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:12:16,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:12:16,035 INFO L87 Difference]: Start difference. First operand 90 states and 126 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:12:25,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:25,153 INFO L93 Difference]: Finished difference Result 122 states and 159 transitions. [2024-11-27 20:12:25,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:12:25,154 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-27 20:12:25,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:25,156 INFO L225 Difference]: With dead ends: 122 [2024-11-27 20:12:25,156 INFO L226 Difference]: Without dead ends: 120 [2024-11-27 20:12:25,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 18.2s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:12:25,157 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 56 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:25,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 421 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:12:25,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-27 20:12:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 90. [2024-11-27 20:12:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 59 states have (on average 1.1864406779661016) internal successors, (70), 60 states have internal predecessors, (70), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:12:25,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2024-11-27 20:12:25,175 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 126 transitions. Word has length 131 [2024-11-27 20:12:25,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:25,175 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 126 transitions. [2024-11-27 20:12:25,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:12:25,176 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 126 transitions. [2024-11-27 20:12:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:12:25,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:25,178 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:25,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:12:25,178 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:25,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash 51084210, now seen corresponding path program 1 times [2024-11-27 20:12:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:25,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375715084] [2024-11-27 20:12:25,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:12:47,168 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:12:47,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:12:47,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375715084] [2024-11-27 20:12:47,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375715084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:12:47,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:12:47,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:12:47,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336959411] [2024-11-27 20:12:47,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:12:47,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:12:47,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:12:47,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:12:47,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:12:47,170 INFO L87 Difference]: Start difference. First operand 90 states and 126 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:12:48,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:12:48,212 INFO L93 Difference]: Finished difference Result 185 states and 259 transitions. [2024-11-27 20:12:48,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:12:48,213 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-27 20:12:48,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:12:48,215 INFO L225 Difference]: With dead ends: 185 [2024-11-27 20:12:48,215 INFO L226 Difference]: Without dead ends: 98 [2024-11-27 20:12:48,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:12:48,217 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 32 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:12:48,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 390 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:12:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-27 20:12:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2024-11-27 20:12:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 61 states have internal predecessors, (71), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:12:48,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-11-27 20:12:48,233 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 131 [2024-11-27 20:12:48,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:12:48,234 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-11-27 20:12:48,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:12:48,235 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-11-27 20:12:48,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:12:48,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:12:48,236 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:12:48,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:12:48,237 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:12:48,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:12:48,238 INFO L85 PathProgramCache]: Analyzing trace with hash -578364176, now seen corresponding path program 1 times [2024-11-27 20:12:48,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:12:48,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275845335] [2024-11-27 20:12:48,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:12:48,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:12:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:13:38,754 WARN L286 SmtUtils]: Spent 8.49s on a formula simplification. DAG size of input: 233 DAG size of output: 161 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:13:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:13:38,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:13:38,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275845335] [2024-11-27 20:13:38,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275845335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:13:38,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:13:38,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:13:38,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096806758] [2024-11-27 20:13:38,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:13:38,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:13:38,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:13:38,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:13:38,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:13:38,800 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:13:43,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:13:43,687 INFO L93 Difference]: Finished difference Result 118 states and 154 transitions. [2024-11-27 20:13:43,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:13:43,689 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-27 20:13:43,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:13:43,690 INFO L225 Difference]: With dead ends: 118 [2024-11-27 20:13:43,690 INFO L226 Difference]: Without dead ends: 116 [2024-11-27 20:13:43,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:13:43,691 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 42 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:13:43,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 485 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:13:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-27 20:13:43,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 91. [2024-11-27 20:13:43,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 61 states have internal predecessors, (71), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 20:13:43,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 127 transitions. [2024-11-27 20:13:43,706 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 127 transitions. Word has length 131 [2024-11-27 20:13:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:13:43,707 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 127 transitions. [2024-11-27 20:13:43,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:13:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 127 transitions. [2024-11-27 20:13:43,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:13:43,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:13:43,709 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:13:43,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:13:43,709 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:13:43,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:13:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash -576517134, now seen corresponding path program 1 times [2024-11-27 20:13:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:13:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927917353] [2024-11-27 20:13:43,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:13:43,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:13:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:14:35,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:35,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927917353] [2024-11-27 20:14:35,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927917353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:35,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:35,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 20:14:35,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254839746] [2024-11-27 20:14:35,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:35,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:14:35,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:35,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:14:35,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:14:35,515 INFO L87 Difference]: Start difference. First operand 91 states and 127 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:14:46,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:14:46,803 INFO L93 Difference]: Finished difference Result 186 states and 250 transitions. [2024-11-27 20:14:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:14:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-27 20:14:46,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:14:46,806 INFO L225 Difference]: With dead ends: 186 [2024-11-27 20:14:46,806 INFO L226 Difference]: Without dead ends: 184 [2024-11-27 20:14:46,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:14:46,807 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 91 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:14:46,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 475 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 20:14:46,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-27 20:14:46,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 138. [2024-11-27 20:14:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 84 states have (on average 1.1666666666666667) internal successors, (98), 85 states have internal predecessors, (98), 49 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-27 20:14:46,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 196 transitions. [2024-11-27 20:14:46,834 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 196 transitions. Word has length 131 [2024-11-27 20:14:46,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:14:46,834 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 196 transitions. [2024-11-27 20:14:46,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 13 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:14:46,835 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 196 transitions. [2024-11-27 20:14:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-27 20:14:46,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:14:46,836 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:46,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:14:46,837 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:14:46,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:46,837 INFO L85 PathProgramCache]: Analyzing trace with hash -341942800, now seen corresponding path program 1 times [2024-11-27 20:14:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:46,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461396697] [2024-11-27 20:14:46,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:46,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:15:06,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461396697] [2024-11-27 20:15:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461396697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:06,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:06,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 20:15:06,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808440623] [2024-11-27 20:15:06,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:06,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:15:06,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:06,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:15:06,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:15:06,808 INFO L87 Difference]: Start difference. First operand 138 states and 196 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:15:07,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:07,723 INFO L93 Difference]: Finished difference Result 234 states and 329 transitions. [2024-11-27 20:15:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:15:07,724 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 131 [2024-11-27 20:15:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:15:07,725 INFO L225 Difference]: With dead ends: 234 [2024-11-27 20:15:07,726 INFO L226 Difference]: Without dead ends: 146 [2024-11-27 20:15:07,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:15:07,727 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 27 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:15:07,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 468 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:15:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-27 20:15:07,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 130. [2024-11-27 20:15:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 76 states have (on average 1.144736842105263) internal successors, (87), 77 states have internal predecessors, (87), 49 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-27 20:15:07,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 185 transitions. [2024-11-27 20:15:07,748 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 185 transitions. Word has length 131 [2024-11-27 20:15:07,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:15:07,749 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 185 transitions. [2024-11-27 20:15:07,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:15:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 185 transitions. [2024-11-27 20:15:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-27 20:15:07,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:15:07,753 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:07,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:15:07,754 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:15:07,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:07,754 INFO L85 PathProgramCache]: Analyzing trace with hash -387743635, now seen corresponding path program 1 times [2024-11-27 20:15:07,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:07,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781615578] [2024-11-27 20:15:07,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:07,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3477 trivial. 0 not checked. [2024-11-27 20:16:14,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:16:14,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781615578] [2024-11-27 20:16:14,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781615578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:16:14,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:16:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-27 20:16:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388135335] [2024-11-27 20:16:14,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:16:14,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:16:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:16:14,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:16:14,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:16:14,328 INFO L87 Difference]: Start difference. First operand 130 states and 185 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:16:22,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:16:22,794 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2024-11-27 20:16:22,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:16:22,795 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 258 [2024-11-27 20:16:22,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:16:22,795 INFO L225 Difference]: With dead ends: 156 [2024-11-27 20:16:22,795 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:16:22,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:16:22,796 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 40 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:16:22,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 414 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:16:22,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:16:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:16:22,797 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) [2024-11-27 20:16:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:16:22,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2024-11-27 20:16:22,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:16:22,798 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:16:22,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-27 20:16:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:16:22,798 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:16:22,801 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:16:22,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:16:22,805 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:16:22,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:16:22,906 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:16:22,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:16:22 BoogieIcfgContainer [2024-11-27 20:16:22,917 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:16:22,918 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:16:22,918 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:16:22,918 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:16:22,919 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:07:21" (3/4) ... [2024-11-27 20:16:22,921 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:16:22,928 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 20:16:22,932 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-27 20:16:22,933 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:16:22,933 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:16:22,933 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:16:23,025 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:16:23,025 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:16:23,025 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:16:23,027 INFO L158 Benchmark]: Toolchain (without parser) took 542941.34ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 92.0MB in the beginning and 855.8MB in the end (delta: -763.8MB). Peak memory consumption was 326.2MB. Max. memory is 16.1GB. [2024-11-27 20:16:23,027 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 83.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:16:23,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.51ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 79.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:16:23,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.58ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:16:23,028 INFO L158 Benchmark]: Boogie Preprocessor took 89.09ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:16:23,029 INFO L158 Benchmark]: RCFGBuilder took 727.46ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 59.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:16:23,029 INFO L158 Benchmark]: TraceAbstraction took 541556.93ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.1MB in the beginning and 860.1MB in the end (delta: -801.0MB). Peak memory consumption was 284.2MB. Max. memory is 16.1GB. [2024-11-27 20:16:23,029 INFO L158 Benchmark]: Witness Printer took 107.08ms. Allocated memory is still 1.2GB. Free memory was 860.1MB in the beginning and 855.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:16:23,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 83.9MB. Free memory is still 40.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.51ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 79.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.58ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.4MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.09ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 727.46ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 59.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 541556.93ms. Allocated memory was 117.4MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 59.1MB in the beginning and 860.1MB in the end (delta: -801.0MB). Peak memory consumption was 284.2MB. Max. memory is 16.1GB. * Witness Printer took 107.08ms. Allocated memory is still 1.2GB. Free memory was 860.1MB in the beginning and 855.8MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. 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, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 541.4s, OverallIterations: 13, TraceHistogramMax: 42, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 56.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 460 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 460 mSDsluCounter, 4572 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3595 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2287 IncrementalHoareTripleChecker+Invalid, 2360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 977 mSDtfsCounter, 2287 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 109.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=11, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 228 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 482.9s InterpolantComputationTime, 1954 NumberOfCodeBlocks, 1954 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1940 ConstructedInterpolants, 0 QuantifiedInterpolants, 25170 SizeOfPredicates, 0 NumberOfNonLiveVariables, 312 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 14 InterpolantComputations, 13 PerfectInterpolantSequences, 14366/14406 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 RESULT: Ultimate proved your program to be correct! [2024-11-27 20:16:23,246 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-11-27 20:16:23,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3f34f1f-20d7-4ff2-8b92-aa39d2540180/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE