./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c --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_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e574f019d5235e99746db8bee675f73f85742bea09499f7933172a6790260b16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:42:01,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:42:01,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 10:42:01,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:42:01,947 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:42:01,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:42:01,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:42:01,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:42:01,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:42:01,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:42:01,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:42:01,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:42:01,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:42:01,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:42:01,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:42:01,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:42:01,971 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:42:01,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:42:01,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:42:01,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:42:01,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:42:01,973 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:42:01,973 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_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e574f019d5235e99746db8bee675f73f85742bea09499f7933172a6790260b16 [2024-12-02 10:42:02,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:42:02,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:42:02,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:42:02,186 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:42:02,187 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:42:02,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-12-02 10:42:04,809 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/data/527957dc1/c3e50686b1814470b89932ccc0899c7b/FLAG94d2a8d31 [2024-12-02 10:42:05,222 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:42:05,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-12-02 10:42:05,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/data/527957dc1/c3e50686b1814470b89932ccc0899c7b/FLAG94d2a8d31 [2024-12-02 10:42:05,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/data/527957dc1/c3e50686b1814470b89932ccc0899c7b [2024-12-02 10:42:05,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:42:05,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:42:05,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:42:05,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:42:05,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:42:05,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:42:05" (1/1) ... [2024-12-02 10:42:05,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8b672a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:05, skipping insertion in model container [2024-12-02 10:42:05,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:42:05" (1/1) ... [2024-12-02 10:42:05,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:42:05,730 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_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[11640,11653] [2024-12-02 10:42:05,770 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_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[14457,14470] [2024-12-02 10:42:06,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:42:06,305 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:42:06,334 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_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[11640,11653] [2024-12-02 10:42:06,340 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_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/sv-benchmarks/c/combinations/pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c[14457,14470] [2024-12-02 10:42:06,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:42:06,693 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:42:06,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06 WrapperNode [2024-12-02 10:42:06,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:42:06,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:42:06,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:42:06,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:42:06,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:06,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:06,937 INFO L138 Inliner]: procedures = 36, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-12-02 10:42:06,938 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:42:06,938 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:42:06,938 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:42:06,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:42:06,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:06,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:06,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,144 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 10:42:07,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,248 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,278 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:42:07,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:42:07,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:42:07,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:42:07,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (1/1) ... [2024-12-02 10:42:07,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:42:07,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:42:07,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:42:07,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:42:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:42:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:42:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:42:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:42:07,482 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:42:07,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:42:12,164 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-12-02 10:42:12,164 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:42:12,191 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:42:12,191 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 10:42:12,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:42:12 BoogieIcfgContainer [2024-12-02 10:42:12,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:42:12,194 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:42:12,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:42:12,199 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:42:12,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:42:05" (1/3) ... [2024-12-02 10:42:12,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec87d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:42:12, skipping insertion in model container [2024-12-02 10:42:12,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:42:06" (2/3) ... [2024-12-02 10:42:12,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec87d04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:42:12, skipping insertion in model container [2024-12-02 10:42:12,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:42:12" (3/3) ... [2024-12-02 10:42:12,201 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c [2024-12-02 10:42:12,212 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:42:12,215 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.BOUNDED-10.pals+Problem12_label06.c that has 1 procedures, 900 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-12-02 10:42:12,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:42:12,288 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;@53466257, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:42:12,289 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 10:42:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 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) [2024-12-02 10:42:12,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-02 10:42:12,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:12,300 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:12,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:12,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:12,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1849265899, now seen corresponding path program 1 times [2024-12-02 10:42:12,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:12,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91626134] [2024-12-02 10:42:12,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:12,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:12,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:12,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:12,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91626134] [2024-12-02 10:42:12,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91626134] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:12,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:12,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:42:12,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876592335] [2024-12-02 10:42:12,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:12,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:12,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:12,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:12,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:12,571 INFO L87 Difference]: Start difference. First operand has 900 states, 897 states have (on average 1.9041248606465997) internal successors, (1708), 899 states have internal predecessors, (1708), 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) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-12-02 10:42:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:16,049 INFO L93 Difference]: Finished difference Result 2518 states and 4848 transitions. [2024-12-02 10:42:16,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:16,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) Word has length 24 [2024-12-02 10:42:16,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:16,067 INFO L225 Difference]: With dead ends: 2518 [2024-12-02 10:42:16,067 INFO L226 Difference]: Without dead ends: 1585 [2024-12-02 10:42:16,072 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:16,075 INFO L435 NwaCegarLoop]: 286 mSDtfsCounter, 1013 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:16,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 297 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-12-02 10:42:16,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-12-02 10:42:16,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-12-02 10:42:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.8408085912823753) internal successors, (2914), 1584 states have internal predecessors, (2914), 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) [2024-12-02 10:42:16,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2914 transitions. [2024-12-02 10:42:16,160 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2914 transitions. Word has length 24 [2024-12-02 10:42:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:16,161 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2914 transitions. [2024-12-02 10:42:16,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-12-02 10:42:16,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2914 transitions. [2024-12-02 10:42:16,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 10:42:16,162 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:16,162 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:16,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:42:16,162 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:16,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash -768109886, now seen corresponding path program 1 times [2024-12-02 10:42:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917422880] [2024-12-02 10:42:16,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:16,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:16,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:16,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917422880] [2024-12-02 10:42:16,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917422880] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:16,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:42:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853239439] [2024-12-02 10:42:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:16,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:42:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:16,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:42:16,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:42:16,337 INFO L87 Difference]: Start difference. First operand 1585 states and 2914 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-12-02 10:42:16,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:16,414 INFO L93 Difference]: Finished difference Result 1632 states and 2986 transitions. [2024-12-02 10:42:16,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:42:16,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) Word has length 25 [2024-12-02 10:42:16,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:16,421 INFO L225 Difference]: With dead ends: 1632 [2024-12-02 10:42:16,421 INFO L226 Difference]: Without dead ends: 1585 [2024-12-02 10:42:16,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:42:16,422 INFO L435 NwaCegarLoop]: 1573 mSDtfsCounter, 0 mSDsluCounter, 4683 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6256 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:16,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6256 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2024-12-02 10:42:16,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2024-12-02 10:42:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1583 states have (on average 1.82122552116235) internal successors, (2883), 1584 states have internal predecessors, (2883), 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) [2024-12-02 10:42:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2883 transitions. [2024-12-02 10:42:16,463 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2883 transitions. Word has length 25 [2024-12-02 10:42:16,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:16,463 INFO L471 AbstractCegarLoop]: Abstraction has 1585 states and 2883 transitions. [2024-12-02 10:42:16,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-12-02 10:42:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2883 transitions. [2024-12-02 10:42:16,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 10:42:16,465 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:16,465 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:16,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:42:16,465 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:16,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:16,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1032471947, now seen corresponding path program 1 times [2024-12-02 10:42:16,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:16,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526134759] [2024-12-02 10:42:16,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:16,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:16,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:16,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:16,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526134759] [2024-12-02 10:42:16,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526134759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:16,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:16,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:16,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831897909] [2024-12-02 10:42:16,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:16,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:16,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:16,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:16,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:16,646 INFO L87 Difference]: Start difference. First operand 1585 states and 2883 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-12-02 10:42:16,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:16,905 INFO L93 Difference]: Finished difference Result 2015 states and 3563 transitions. [2024-12-02 10:42:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 10:42:16,906 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) Word has length 55 [2024-12-02 10:42:16,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:16,914 INFO L225 Difference]: With dead ends: 2015 [2024-12-02 10:42:16,914 INFO L226 Difference]: Without dead ends: 1972 [2024-12-02 10:42:16,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-12-02 10:42:16,916 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7906 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7906 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:16,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7906 Valid, 3025 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2024-12-02 10:42:16,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 1626. [2024-12-02 10:42:16,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1624 states have (on average 1.8152709359605912) internal successors, (2948), 1625 states have internal predecessors, (2948), 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) [2024-12-02 10:42:16,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2948 transitions. [2024-12-02 10:42:16,963 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2948 transitions. Word has length 55 [2024-12-02 10:42:16,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:16,964 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2948 transitions. [2024-12-02 10:42:16,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-12-02 10:42:16,964 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2948 transitions. [2024-12-02 10:42:16,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 10:42:16,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:16,965 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:16,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:42:16,966 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:16,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:16,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1347601061, now seen corresponding path program 1 times [2024-12-02 10:42:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:16,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502762834] [2024-12-02 10:42:16,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:16,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:17,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:17,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502762834] [2024-12-02 10:42:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502762834] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:17,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:17,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:17,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911900507] [2024-12-02 10:42:17,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:17,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:17,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:17,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:17,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:17,066 INFO L87 Difference]: Start difference. First operand 1626 states and 2948 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-12-02 10:42:17,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:17,110 INFO L93 Difference]: Finished difference Result 1783 states and 3195 transitions. [2024-12-02 10:42:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:17,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) Word has length 57 [2024-12-02 10:42:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:17,117 INFO L225 Difference]: With dead ends: 1783 [2024-12-02 10:42:17,117 INFO L226 Difference]: Without dead ends: 1699 [2024-12-02 10:42:17,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:17,119 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1482 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:17,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1605 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-12-02 10:42:17,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1697. [2024-12-02 10:42:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.8041297935103244) internal successors, (3058), 1696 states have internal predecessors, (3058), 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) [2024-12-02 10:42:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 3058 transitions. [2024-12-02 10:42:17,162 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 3058 transitions. Word has length 57 [2024-12-02 10:42:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:17,162 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 3058 transitions. [2024-12-02 10:42:17,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2024-12-02 10:42:17,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 3058 transitions. [2024-12-02 10:42:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-02 10:42:17,164 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:17,164 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:17,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:42:17,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:17,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1281107549, now seen corresponding path program 1 times [2024-12-02 10:42:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:17,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026203980] [2024-12-02 10:42:17,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:17,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:17,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:17,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026203980] [2024-12-02 10:42:17,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026203980] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:17,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:17,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887438697] [2024-12-02 10:42:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:17,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:17,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:17,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:17,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:17,509 INFO L87 Difference]: Start difference. First operand 1697 states and 3058 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-12-02 10:42:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:17,685 INFO L93 Difference]: Finished difference Result 1854 states and 3302 transitions. [2024-12-02 10:42:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:42:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) Word has length 57 [2024-12-02 10:42:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:17,690 INFO L225 Difference]: With dead ends: 1854 [2024-12-02 10:42:17,690 INFO L226 Difference]: Without dead ends: 1699 [2024-12-02 10:42:17,691 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-12-02 10:42:17,691 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 2994 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 1800 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:17,691 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 1800 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2024-12-02 10:42:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1697. [2024-12-02 10:42:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1695 states have (on average 1.8029498525073746) internal successors, (3056), 1696 states have internal predecessors, (3056), 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) [2024-12-02 10:42:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 3056 transitions. [2024-12-02 10:42:17,717 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 3056 transitions. Word has length 57 [2024-12-02 10:42:17,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:17,717 INFO L471 AbstractCegarLoop]: Abstraction has 1697 states and 3056 transitions. [2024-12-02 10:42:17,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2024-12-02 10:42:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 3056 transitions. [2024-12-02 10:42:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 10:42:17,718 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:17,718 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:17,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:42:17,718 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:17,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:17,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1474351433, now seen corresponding path program 1 times [2024-12-02 10:42:17,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:17,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444150498] [2024-12-02 10:42:17,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:17,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:17,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:17,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444150498] [2024-12-02 10:42:17,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444150498] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:17,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:17,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 10:42:17,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309898916] [2024-12-02 10:42:17,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:17,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 10:42:17,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:17,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:42:17,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:42:17,951 INFO L87 Difference]: Start difference. First operand 1697 states and 3056 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2024-12-02 10:42:18,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:18,018 INFO L93 Difference]: Finished difference Result 1705 states and 3065 transitions. [2024-12-02 10:42:18,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 10:42:18,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) Word has length 58 [2024-12-02 10:42:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:18,024 INFO L225 Difference]: With dead ends: 1705 [2024-12-02 10:42:18,024 INFO L226 Difference]: Without dead ends: 1703 [2024-12-02 10:42:18,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:42:18,025 INFO L435 NwaCegarLoop]: 1538 mSDtfsCounter, 0 mSDsluCounter, 9215 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10753 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:18,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10753 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-12-02 10:42:18,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2024-12-02 10:42:18,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1701 states have (on average 1.7995296884185774) internal successors, (3061), 1702 states have internal predecessors, (3061), 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) [2024-12-02 10:42:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 3061 transitions. [2024-12-02 10:42:18,057 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 3061 transitions. Word has length 58 [2024-12-02 10:42:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:18,057 INFO L471 AbstractCegarLoop]: Abstraction has 1703 states and 3061 transitions. [2024-12-02 10:42:18,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 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) [2024-12-02 10:42:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 3061 transitions. [2024-12-02 10:42:18,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 10:42:18,057 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:18,058 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:18,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:42:18,058 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:18,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:18,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1913192451, now seen corresponding path program 1 times [2024-12-02 10:42:18,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:18,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700463782] [2024-12-02 10:42:18,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:18,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:18,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:18,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700463782] [2024-12-02 10:42:18,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700463782] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:18,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229500526] [2024-12-02 10:42:18,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:18,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:18,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:18,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:18,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,123 INFO L87 Difference]: Start difference. First operand 1703 states and 3061 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:18,150 INFO L93 Difference]: Finished difference Result 1878 states and 3327 transitions. [2024-12-02 10:42:18,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:18,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2024-12-02 10:42:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:18,155 INFO L225 Difference]: With dead ends: 1878 [2024-12-02 10:42:18,155 INFO L226 Difference]: Without dead ends: 1788 [2024-12-02 10:42:18,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,157 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1496 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:18,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1665 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-12-02 10:42:18,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1786. [2024-12-02 10:42:18,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1784 states have (on average 1.7853139013452914) internal successors, (3185), 1785 states have internal predecessors, (3185), 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) [2024-12-02 10:42:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 3185 transitions. [2024-12-02 10:42:18,185 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 3185 transitions. Word has length 59 [2024-12-02 10:42:18,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:18,185 INFO L471 AbstractCegarLoop]: Abstraction has 1786 states and 3185 transitions. [2024-12-02 10:42:18,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 3185 transitions. [2024-12-02 10:42:18,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 10:42:18,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:18,186 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:18,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:42:18,186 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:18,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:18,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2117918461, now seen corresponding path program 1 times [2024-12-02 10:42:18,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:18,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694260583] [2024-12-02 10:42:18,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:18,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:18,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:18,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:18,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694260583] [2024-12-02 10:42:18,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694260583] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:18,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:18,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:18,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52901267] [2024-12-02 10:42:18,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:18,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:18,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:18,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,242 INFO L87 Difference]: Start difference. First operand 1786 states and 3185 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:18,269 INFO L93 Difference]: Finished difference Result 2244 states and 3877 transitions. [2024-12-02 10:42:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:18,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2024-12-02 10:42:18,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:18,274 INFO L225 Difference]: With dead ends: 2244 [2024-12-02 10:42:18,274 INFO L226 Difference]: Without dead ends: 2003 [2024-12-02 10:42:18,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,275 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1494 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:18,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1494 Valid, 1671 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:18,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2024-12-02 10:42:18,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 2001. [2024-12-02 10:42:18,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2001 states, 1999 states have (on average 1.752376188094047) internal successors, (3503), 2000 states have internal predecessors, (3503), 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) [2024-12-02 10:42:18,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2001 states to 2001 states and 3503 transitions. [2024-12-02 10:42:18,305 INFO L78 Accepts]: Start accepts. Automaton has 2001 states and 3503 transitions. Word has length 59 [2024-12-02 10:42:18,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:18,306 INFO L471 AbstractCegarLoop]: Abstraction has 2001 states and 3503 transitions. [2024-12-02 10:42:18,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2001 states and 3503 transitions. [2024-12-02 10:42:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 10:42:18,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:18,306 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:18,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:42:18,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:18,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:18,307 INFO L85 PathProgramCache]: Analyzing trace with hash -879656445, now seen corresponding path program 1 times [2024-12-02 10:42:18,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:18,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105234176] [2024-12-02 10:42:18,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:18,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:18,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:18,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105234176] [2024-12-02 10:42:18,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105234176] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:18,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:18,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:18,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726885963] [2024-12-02 10:42:18,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:18,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:18,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:18,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:18,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,351 INFO L87 Difference]: Start difference. First operand 2001 states and 3503 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:18,386 INFO L93 Difference]: Finished difference Result 2865 states and 4789 transitions. [2024-12-02 10:42:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:18,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2024-12-02 10:42:18,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:18,392 INFO L225 Difference]: With dead ends: 2865 [2024-12-02 10:42:18,392 INFO L226 Difference]: Without dead ends: 2409 [2024-12-02 10:42:18,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,393 INFO L435 NwaCegarLoop]: 1596 mSDtfsCounter, 1492 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:18,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1673 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:18,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2409 states. [2024-12-02 10:42:18,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2409 to 2407. [2024-12-02 10:42:18,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2407 states, 2405 states have (on average 1.701039501039501) internal successors, (4091), 2406 states have internal predecessors, (4091), 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) [2024-12-02 10:42:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2407 states to 2407 states and 4091 transitions. [2024-12-02 10:42:18,432 INFO L78 Accepts]: Start accepts. Automaton has 2407 states and 4091 transitions. Word has length 59 [2024-12-02 10:42:18,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:18,432 INFO L471 AbstractCegarLoop]: Abstraction has 2407 states and 4091 transitions. [2024-12-02 10:42:18,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2407 states and 4091 transitions. [2024-12-02 10:42:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 10:42:18,432 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:18,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:18,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:42:18,433 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:18,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1199842051, now seen corresponding path program 1 times [2024-12-02 10:42:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:18,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893294953] [2024-12-02 10:42:18,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:18,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:18,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:18,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:18,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893294953] [2024-12-02 10:42:18,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893294953] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:18,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:18,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:18,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654171554] [2024-12-02 10:42:18,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:18,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:18,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:18,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:18,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,510 INFO L87 Difference]: Start difference. First operand 2407 states and 4091 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:18,566 INFO L93 Difference]: Finished difference Result 4035 states and 6469 transitions. [2024-12-02 10:42:18,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:18,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2024-12-02 10:42:18,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:18,577 INFO L225 Difference]: With dead ends: 4035 [2024-12-02 10:42:18,577 INFO L226 Difference]: Without dead ends: 3173 [2024-12-02 10:42:18,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,579 INFO L435 NwaCegarLoop]: 1594 mSDtfsCounter, 1490 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:18,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1675 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3173 states. [2024-12-02 10:42:18,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3173 to 3171. [2024-12-02 10:42:18,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3169 states have (on average 1.631745029977911) internal successors, (5171), 3170 states have internal predecessors, (5171), 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) [2024-12-02 10:42:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 5171 transitions. [2024-12-02 10:42:18,664 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 5171 transitions. Word has length 59 [2024-12-02 10:42:18,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:18,664 INFO L471 AbstractCegarLoop]: Abstraction has 3171 states and 5171 transitions. [2024-12-02 10:42:18,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 5171 transitions. [2024-12-02 10:42:18,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-12-02 10:42:18,665 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:18,665 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:18,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:42:18,665 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:18,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:18,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1314192381, now seen corresponding path program 1 times [2024-12-02 10:42:18,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:18,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632201846] [2024-12-02 10:42:18,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:18,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:18,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:18,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:18,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632201846] [2024-12-02 10:42:18,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632201846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:18,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:18,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:18,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304693780] [2024-12-02 10:42:18,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:18,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:18,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:18,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:18,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,728 INFO L87 Difference]: Start difference. First operand 3171 states and 5171 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:18,815 INFO L93 Difference]: Finished difference Result 6231 states and 9541 transitions. [2024-12-02 10:42:18,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:18,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) Word has length 59 [2024-12-02 10:42:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:18,831 INFO L225 Difference]: With dead ends: 6231 [2024-12-02 10:42:18,832 INFO L226 Difference]: Without dead ends: 4605 [2024-12-02 10:42:18,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:18,835 INFO L435 NwaCegarLoop]: 1592 mSDtfsCounter, 1488 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:18,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1677 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:18,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4605 states. [2024-12-02 10:42:18,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4605 to 4603. [2024-12-02 10:42:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4603 states, 4601 states have (on average 1.5516192132145186) internal successors, (7139), 4602 states have internal predecessors, (7139), 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) [2024-12-02 10:42:18,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4603 states to 4603 states and 7139 transitions. [2024-12-02 10:42:18,974 INFO L78 Accepts]: Start accepts. Automaton has 4603 states and 7139 transitions. Word has length 59 [2024-12-02 10:42:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:18,975 INFO L471 AbstractCegarLoop]: Abstraction has 4603 states and 7139 transitions. [2024-12-02 10:42:18,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-12-02 10:42:18,975 INFO L276 IsEmpty]: Start isEmpty. Operand 4603 states and 7139 transitions. [2024-12-02 10:42:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:42:18,977 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:18,977 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:18,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:42:18,977 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:18,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1793062525, now seen corresponding path program 1 times [2024-12-02 10:42:18,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:18,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717964439] [2024-12-02 10:42:18,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:18,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 10:42:19,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:19,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717964439] [2024-12-02 10:42:19,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717964439] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:19,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:19,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:19,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123768695] [2024-12-02 10:42:19,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:19,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:19,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:19,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:19,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:19,160 INFO L87 Difference]: Start difference. First operand 4603 states and 7139 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-12-02 10:42:19,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:19,582 INFO L93 Difference]: Finished difference Result 19671 states and 28409 transitions. [2024-12-02 10:42:19,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:42:19,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) Word has length 79 [2024-12-02 10:42:19,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:19,611 INFO L225 Difference]: With dead ends: 19671 [2024-12-02 10:42:19,611 INFO L226 Difference]: Without dead ends: 17493 [2024-12-02 10:42:19,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:42:19,616 INFO L435 NwaCegarLoop]: 1609 mSDtfsCounter, 6312 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6312 SdHoareTripleChecker+Valid, 3729 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:19,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6312 Valid, 3729 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:19,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17493 states. [2024-12-02 10:42:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17493 to 7227. [2024-12-02 10:42:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7227 states, 7225 states have (on average 1.4952249134948097) internal successors, (10803), 7226 states have internal predecessors, (10803), 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) [2024-12-02 10:42:19,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7227 states to 7227 states and 10803 transitions. [2024-12-02 10:42:19,797 INFO L78 Accepts]: Start accepts. Automaton has 7227 states and 10803 transitions. Word has length 79 [2024-12-02 10:42:19,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:19,797 INFO L471 AbstractCegarLoop]: Abstraction has 7227 states and 10803 transitions. [2024-12-02 10:42:19,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-12-02 10:42:19,798 INFO L276 IsEmpty]: Start isEmpty. Operand 7227 states and 10803 transitions. [2024-12-02 10:42:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:42:19,799 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:19,800 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:19,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:42:19,800 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:19,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:19,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1529206141, now seen corresponding path program 1 times [2024-12-02 10:42:19,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:19,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287515867] [2024-12-02 10:42:19,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:19,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:19,935 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 10:42:19,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:19,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287515867] [2024-12-02 10:42:19,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287515867] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:19,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:19,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:19,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018331913] [2024-12-02 10:42:19,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:19,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:19,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:19,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:19,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:19,937 INFO L87 Difference]: Start difference. First operand 7227 states and 10803 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2024-12-02 10:42:20,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:20,317 INFO L93 Difference]: Finished difference Result 22727 states and 32697 transitions. [2024-12-02 10:42:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:42:20,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) Word has length 79 [2024-12-02 10:42:20,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:20,348 INFO L225 Difference]: With dead ends: 22727 [2024-12-02 10:42:20,348 INFO L226 Difference]: Without dead ends: 19669 [2024-12-02 10:42:20,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:42:20,354 INFO L435 NwaCegarLoop]: 1608 mSDtfsCounter, 6316 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6316 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:20,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6316 Valid, 3675 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19669 states. [2024-12-02 10:42:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19669 to 11371. [2024-12-02 10:42:20,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11371 states, 11369 states have (on average 1.45826369953382) internal successors, (16579), 11370 states have internal predecessors, (16579), 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) [2024-12-02 10:42:20,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 16579 transitions. [2024-12-02 10:42:20,624 INFO L78 Accepts]: Start accepts. Automaton has 11371 states and 16579 transitions. Word has length 79 [2024-12-02 10:42:20,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:20,624 INFO L471 AbstractCegarLoop]: Abstraction has 11371 states and 16579 transitions. [2024-12-02 10:42:20,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2024-12-02 10:42:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 11371 states and 16579 transitions. [2024-12-02 10:42:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:42:20,626 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:20,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:20,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:42:20,626 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:20,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:20,626 INFO L85 PathProgramCache]: Analyzing trace with hash -290944125, now seen corresponding path program 1 times [2024-12-02 10:42:20,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:20,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362493720] [2024-12-02 10:42:20,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:20,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-02 10:42:20,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:20,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362493720] [2024-12-02 10:42:20,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362493720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:20,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:20,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:20,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669883519] [2024-12-02 10:42:20,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:20,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:20,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:20,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:20,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:20,756 INFO L87 Difference]: Start difference. First operand 11371 states and 16579 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-12-02 10:42:21,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:21,170 INFO L93 Difference]: Finished difference Result 25783 states and 36969 transitions. [2024-12-02 10:42:21,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:42:21,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) Word has length 79 [2024-12-02 10:42:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:21,195 INFO L225 Difference]: With dead ends: 25783 [2024-12-02 10:42:21,196 INFO L226 Difference]: Without dead ends: 22725 [2024-12-02 10:42:21,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:42:21,201 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 6339 mSDsluCounter, 2036 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 3642 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:21,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 3642 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:21,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22725 states. [2024-12-02 10:42:21,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22725 to 14427. [2024-12-02 10:42:21,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14427 states, 14425 states have (on average 1.445476603119584) internal successors, (20851), 14426 states have internal predecessors, (20851), 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) [2024-12-02 10:42:21,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14427 states to 14427 states and 20851 transitions. [2024-12-02 10:42:21,488 INFO L78 Accepts]: Start accepts. Automaton has 14427 states and 20851 transitions. Word has length 79 [2024-12-02 10:42:21,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:21,488 INFO L471 AbstractCegarLoop]: Abstraction has 14427 states and 20851 transitions. [2024-12-02 10:42:21,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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) [2024-12-02 10:42:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 14427 states and 20851 transitions. [2024-12-02 10:42:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:42:21,490 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:21,490 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:21,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:42:21,490 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:21,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1788554371, now seen corresponding path program 1 times [2024-12-02 10:42:21,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:21,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240287491] [2024-12-02 10:42:21,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:21,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 10:42:21,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:21,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240287491] [2024-12-02 10:42:21,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240287491] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:21,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:21,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:21,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33012362] [2024-12-02 10:42:21,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:21,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:21,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:21,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:21,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:21,672 INFO L87 Difference]: Start difference. First operand 14427 states and 20851 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 10:42:22,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:22,299 INFO L93 Difference]: Finished difference Result 28839 states and 41241 transitions. [2024-12-02 10:42:22,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:42:22,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) Word has length 79 [2024-12-02 10:42:22,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:22,354 INFO L225 Difference]: With dead ends: 28839 [2024-12-02 10:42:22,354 INFO L226 Difference]: Without dead ends: 25781 [2024-12-02 10:42:22,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:42:22,363 INFO L435 NwaCegarLoop]: 1604 mSDtfsCounter, 6378 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6378 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:22,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6378 Valid, 3636 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:22,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25781 states. [2024-12-02 10:42:22,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25781 to 17483. [2024-12-02 10:42:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17483 states, 17481 states have (on average 1.4371603455179909) internal successors, (25123), 17482 states have internal predecessors, (25123), 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) [2024-12-02 10:42:22,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17483 states to 17483 states and 25123 transitions. [2024-12-02 10:42:22,769 INFO L78 Accepts]: Start accepts. Automaton has 17483 states and 25123 transitions. Word has length 79 [2024-12-02 10:42:22,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:22,769 INFO L471 AbstractCegarLoop]: Abstraction has 17483 states and 25123 transitions. [2024-12-02 10:42:22,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 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) [2024-12-02 10:42:22,769 INFO L276 IsEmpty]: Start isEmpty. Operand 17483 states and 25123 transitions. [2024-12-02 10:42:22,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 10:42:22,771 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:22,771 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:22,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:42:22,771 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:22,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:22,772 INFO L85 PathProgramCache]: Analyzing trace with hash -725480061, now seen corresponding path program 1 times [2024-12-02 10:42:22,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:22,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162558890] [2024-12-02 10:42:22,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:22,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-12-02 10:42:22,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:22,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162558890] [2024-12-02 10:42:22,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162558890] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:22,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:22,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 10:42:22,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377498830] [2024-12-02 10:42:22,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:22,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:42:22,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:22,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:42:22,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:42:22,888 INFO L87 Difference]: Start difference. First operand 17483 states and 25123 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2024-12-02 10:42:23,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:23,562 INFO L93 Difference]: Finished difference Result 31895 states and 45513 transitions. [2024-12-02 10:42:23,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 10:42:23,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) Word has length 79 [2024-12-02 10:42:23,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:23,596 INFO L225 Difference]: With dead ends: 31895 [2024-12-02 10:42:23,596 INFO L226 Difference]: Without dead ends: 28837 [2024-12-02 10:42:23,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-12-02 10:42:23,605 INFO L435 NwaCegarLoop]: 1603 mSDtfsCounter, 6334 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6334 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:23,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6334 Valid, 3688 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 10:42:23,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28837 states. [2024-12-02 10:42:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28837 to 20539. [2024-12-02 10:42:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.4313190826313482) internal successors, (29395), 20538 states have internal predecessors, (29395), 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) [2024-12-02 10:42:24,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 29395 transitions. [2024-12-02 10:42:24,143 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 29395 transitions. Word has length 79 [2024-12-02 10:42:24,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:24,144 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 29395 transitions. [2024-12-02 10:42:24,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 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) [2024-12-02 10:42:24,144 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 29395 transitions. [2024-12-02 10:42:24,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 10:42:24,145 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:24,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:24,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 10:42:24,146 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:24,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1265022664, now seen corresponding path program 1 times [2024-12-02 10:42:24,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:24,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567192075] [2024-12-02 10:42:24,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:24,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:24,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567192075] [2024-12-02 10:42:24,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567192075] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:24,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:24,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359979558] [2024-12-02 10:42:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:24,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:24,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:24,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:24,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:24,248 INFO L87 Difference]: Start difference. First operand 20539 states and 29395 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-12-02 10:42:24,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:24,729 INFO L93 Difference]: Finished difference Result 39535 states and 55973 transitions. [2024-12-02 10:42:24,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:24,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) Word has length 80 [2024-12-02 10:42:24,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:24,756 INFO L225 Difference]: With dead ends: 39535 [2024-12-02 10:42:24,756 INFO L226 Difference]: Without dead ends: 20541 [2024-12-02 10:42:24,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:24,771 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3111 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:24,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3111 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:24,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20541 states. [2024-12-02 10:42:25,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20541 to 20539. [2024-12-02 10:42:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20539 states, 20537 states have (on average 1.416906071967668) internal successors, (29099), 20538 states have internal predecessors, (29099), 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) [2024-12-02 10:42:25,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20539 states to 20539 states and 29099 transitions. [2024-12-02 10:42:25,188 INFO L78 Accepts]: Start accepts. Automaton has 20539 states and 29099 transitions. Word has length 80 [2024-12-02 10:42:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:25,189 INFO L471 AbstractCegarLoop]: Abstraction has 20539 states and 29099 transitions. [2024-12-02 10:42:25,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2024-12-02 10:42:25,189 INFO L276 IsEmpty]: Start isEmpty. Operand 20539 states and 29099 transitions. [2024-12-02 10:42:25,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-02 10:42:25,191 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:25,191 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:25,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 10:42:25,191 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:25,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:25,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2037489509, now seen corresponding path program 1 times [2024-12-02 10:42:25,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:25,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053813117] [2024-12-02 10:42:25,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:25,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:25,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:25,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053813117] [2024-12-02 10:42:25,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053813117] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:25,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:25,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:25,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879569068] [2024-12-02 10:42:25,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:25,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:25,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:25,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:25,292 INFO L87 Difference]: Start difference. First operand 20539 states and 29099 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-12-02 10:42:25,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:25,538 INFO L93 Difference]: Finished difference Result 27635 states and 39002 transitions. [2024-12-02 10:42:25,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:25,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) Word has length 81 [2024-12-02 10:42:25,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:25,549 INFO L225 Difference]: With dead ends: 27635 [2024-12-02 10:42:25,549 INFO L226 Difference]: Without dead ends: 8641 [2024-12-02 10:42:25,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:25,562 INFO L435 NwaCegarLoop]: 1577 mSDtfsCounter, 39 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:25,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:25,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8641 states. [2024-12-02 10:42:25,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8641 to 8632. [2024-12-02 10:42:25,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8632 states, 8630 states have (on average 1.4609501738122828) internal successors, (12608), 8631 states have internal predecessors, (12608), 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) [2024-12-02 10:42:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8632 states to 8632 states and 12608 transitions. [2024-12-02 10:42:25,761 INFO L78 Accepts]: Start accepts. Automaton has 8632 states and 12608 transitions. Word has length 81 [2024-12-02 10:42:25,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:25,761 INFO L471 AbstractCegarLoop]: Abstraction has 8632 states and 12608 transitions. [2024-12-02 10:42:25,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-12-02 10:42:25,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8632 states and 12608 transitions. [2024-12-02 10:42:25,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-12-02 10:42:25,763 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:25,763 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:25,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 10:42:25,763 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:25,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:25,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1483523354, now seen corresponding path program 1 times [2024-12-02 10:42:25,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:25,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284756968] [2024-12-02 10:42:25,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:25,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:25,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:25,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284756968] [2024-12-02 10:42:25,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284756968] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:25,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:25,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:25,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939584410] [2024-12-02 10:42:25,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:25,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:25,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:25,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:25,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:25,858 INFO L87 Difference]: Start difference. First operand 8632 states and 12608 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-12-02 10:42:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:25,969 INFO L93 Difference]: Finished difference Result 12172 states and 17498 transitions. [2024-12-02 10:42:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:25,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) Word has length 82 [2024-12-02 10:42:25,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:25,977 INFO L225 Difference]: With dead ends: 12172 [2024-12-02 10:42:25,977 INFO L226 Difference]: Without dead ends: 5098 [2024-12-02 10:42:25,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:25,983 INFO L435 NwaCegarLoop]: 1571 mSDtfsCounter, 41 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:25,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:25,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5098 states. [2024-12-02 10:42:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5098 to 5096. [2024-12-02 10:42:26,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5096 states, 5094 states have (on average 1.5053003533568905) internal successors, (7668), 5095 states have internal predecessors, (7668), 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) [2024-12-02 10:42:26,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5096 states to 5096 states and 7668 transitions. [2024-12-02 10:42:26,104 INFO L78 Accepts]: Start accepts. Automaton has 5096 states and 7668 transitions. Word has length 82 [2024-12-02 10:42:26,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:26,104 INFO L471 AbstractCegarLoop]: Abstraction has 5096 states and 7668 transitions. [2024-12-02 10:42:26,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-12-02 10:42:26,104 INFO L276 IsEmpty]: Start isEmpty. Operand 5096 states and 7668 transitions. [2024-12-02 10:42:26,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-12-02 10:42:26,105 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:26,106 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:26,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 10:42:26,106 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:26,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:26,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1068531220, now seen corresponding path program 1 times [2024-12-02 10:42:26,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:26,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014733919] [2024-12-02 10:42:26,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:26,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:26,170 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:26,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:26,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014733919] [2024-12-02 10:42:26,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014733919] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:26,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:26,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:26,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910260556] [2024-12-02 10:42:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:26,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:26,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:26,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:26,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:26,171 INFO L87 Difference]: Start difference. First operand 5096 states and 7668 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-12-02 10:42:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:26,215 INFO L93 Difference]: Finished difference Result 6868 states and 10088 transitions. [2024-12-02 10:42:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:26,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) Word has length 84 [2024-12-02 10:42:26,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:26,219 INFO L225 Difference]: With dead ends: 6868 [2024-12-02 10:42:26,219 INFO L226 Difference]: Without dead ends: 3330 [2024-12-02 10:42:26,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:26,222 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 38 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:26,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:26,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2024-12-02 10:42:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3328. [2024-12-02 10:42:26,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3326 states have (on average 1.570655441972339) internal successors, (5224), 3327 states have internal predecessors, (5224), 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) [2024-12-02 10:42:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 5224 transitions. [2024-12-02 10:42:26,278 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 5224 transitions. Word has length 84 [2024-12-02 10:42:26,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:26,279 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 5224 transitions. [2024-12-02 10:42:26,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-12-02 10:42:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 5224 transitions. [2024-12-02 10:42:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-12-02 10:42:26,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:26,280 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:26,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 10:42:26,280 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:26,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:26,280 INFO L85 PathProgramCache]: Analyzing trace with hash -2111828674, now seen corresponding path program 1 times [2024-12-02 10:42:26,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:26,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832081149] [2024-12-02 10:42:26,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:26,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:26,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:26,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:26,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832081149] [2024-12-02 10:42:26,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832081149] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:26,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:26,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:42:26,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306352426] [2024-12-02 10:42:26,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:26,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:26,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:26,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:26,344 INFO L87 Difference]: Start difference. First operand 3328 states and 5224 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 10:42:26,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:26,376 INFO L93 Difference]: Finished difference Result 4216 states and 6422 transitions. [2024-12-02 10:42:26,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:26,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) Word has length 86 [2024-12-02 10:42:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:26,380 INFO L225 Difference]: With dead ends: 4216 [2024-12-02 10:42:26,380 INFO L226 Difference]: Without dead ends: 2446 [2024-12-02 10:42:26,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:26,382 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 35 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:26,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 10:42:26,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2024-12-02 10:42:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2444. [2024-12-02 10:42:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2444 states, 2442 states have (on average 1.6441441441441442) internal successors, (4015), 2443 states have internal predecessors, (4015), 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) [2024-12-02 10:42:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 4015 transitions. [2024-12-02 10:42:26,415 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 4015 transitions. Word has length 86 [2024-12-02 10:42:26,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:26,416 INFO L471 AbstractCegarLoop]: Abstraction has 2444 states and 4015 transitions. [2024-12-02 10:42:26,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-12-02 10:42:26,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 4015 transitions. [2024-12-02 10:42:26,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 10:42:26,417 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:26,417 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:26,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 10:42:26,417 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:26,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:26,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1630042352, now seen corresponding path program 1 times [2024-12-02 10:42:26,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:26,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392827917] [2024-12-02 10:42:26,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:26,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:26,690 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:26,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:26,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392827917] [2024-12-02 10:42:26,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392827917] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:42:26,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665846821] [2024-12-02 10:42:26,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:26,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:26,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:42:26,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:42:26,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:42:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:26,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:42:26,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:42:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:27,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:42:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:27,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665846821] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:42:27,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:42:27,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 6] total 19 [2024-12-02 10:42:27,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186469894] [2024-12-02 10:42:27,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:42:27,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 10:42:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:27,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 10:42:27,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-12-02 10:42:27,647 INFO L87 Difference]: Start difference. First operand 2444 states and 4015 transitions. Second operand has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 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) [2024-12-02 10:42:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:29,711 INFO L93 Difference]: Finished difference Result 8642 states and 12099 transitions. [2024-12-02 10:42:29,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-12-02 10:42:29,711 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 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) Word has length 88 [2024-12-02 10:42:29,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:29,719 INFO L225 Difference]: With dead ends: 8642 [2024-12-02 10:42:29,719 INFO L226 Difference]: Without dead ends: 7678 [2024-12-02 10:42:29,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=781, Invalid=3251, Unknown=0, NotChecked=0, Total=4032 [2024-12-02 10:42:29,724 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 10968 mSDsluCounter, 8074 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10968 SdHoareTripleChecker+Valid, 9625 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:29,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10968 Valid, 9625 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:42:29,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7678 states. [2024-12-02 10:42:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7678 to 7045. [2024-12-02 10:42:29,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7045 states, 7043 states have (on average 1.4076387902882295) internal successors, (9914), 7044 states have internal predecessors, (9914), 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) [2024-12-02 10:42:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7045 states to 7045 states and 9914 transitions. [2024-12-02 10:42:29,904 INFO L78 Accepts]: Start accepts. Automaton has 7045 states and 9914 transitions. Word has length 88 [2024-12-02 10:42:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:29,904 INFO L471 AbstractCegarLoop]: Abstraction has 7045 states and 9914 transitions. [2024-12-02 10:42:29,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 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) [2024-12-02 10:42:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7045 states and 9914 transitions. [2024-12-02 10:42:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 10:42:29,905 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:29,905 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:29,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:42:30,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:30,105 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:30,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash -976563003, now seen corresponding path program 1 times [2024-12-02 10:42:30,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:30,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948235045] [2024-12-02 10:42:30,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:30,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:31,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:31,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948235045] [2024-12-02 10:42:31,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948235045] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:42:31,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453717031] [2024-12-02 10:42:31,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:31,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:31,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:42:31,265 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:42:31,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:42:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:31,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:42:31,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:42:31,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:31,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:42:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:32,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453717031] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:42:32,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:42:32,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-12-02 10:42:32,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963149380] [2024-12-02 10:42:32,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:42:32,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-12-02 10:42:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:32,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-12-02 10:42:32,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2024-12-02 10:42:32,745 INFO L87 Difference]: Start difference. First operand 7045 states and 9914 transitions. Second operand has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 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) [2024-12-02 10:42:33,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:33,678 INFO L93 Difference]: Finished difference Result 17933 states and 24037 transitions. [2024-12-02 10:42:33,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 10:42:33,679 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 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) Word has length 89 [2024-12-02 10:42:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:33,688 INFO L225 Difference]: With dead ends: 17933 [2024-12-02 10:42:33,688 INFO L226 Difference]: Without dead ends: 12730 [2024-12-02 10:42:33,692 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2024-12-02 10:42:33,693 INFO L435 NwaCegarLoop]: 1512 mSDtfsCounter, 21248 mSDsluCounter, 4899 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21248 SdHoareTripleChecker+Valid, 6411 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:33,693 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21248 Valid, 6411 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 10:42:33,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12730 states. [2024-12-02 10:42:33,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12730 to 12582. [2024-12-02 10:42:33,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12582 states, 12580 states have (on average 1.3422098569157392) internal successors, (16885), 12581 states have internal predecessors, (16885), 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) [2024-12-02 10:42:33,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12582 states to 12582 states and 16885 transitions. [2024-12-02 10:42:33,964 INFO L78 Accepts]: Start accepts. Automaton has 12582 states and 16885 transitions. Word has length 89 [2024-12-02 10:42:33,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:33,964 INFO L471 AbstractCegarLoop]: Abstraction has 12582 states and 16885 transitions. [2024-12-02 10:42:33,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.884615384615385) internal successors, (231), 25 states have internal predecessors, (231), 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) [2024-12-02 10:42:33,964 INFO L276 IsEmpty]: Start isEmpty. Operand 12582 states and 16885 transitions. [2024-12-02 10:42:33,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-12-02 10:42:33,965 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:33,965 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:33,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:42:34,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:34,166 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:34,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:34,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1535524411, now seen corresponding path program 1 times [2024-12-02 10:42:34,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:34,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233509744] [2024-12-02 10:42:34,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:34,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:35,395 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:35,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:35,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233509744] [2024-12-02 10:42:35,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233509744] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:42:35,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419310155] [2024-12-02 10:42:35,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:35,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:35,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:42:35,398 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:42:35,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:42:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:35,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-02 10:42:35,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:42:36,068 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:36,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:42:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:36,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419310155] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:42:36,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:42:36,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 34 [2024-12-02 10:42:36,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231140352] [2024-12-02 10:42:36,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:42:36,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 10:42:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:36,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 10:42:36,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=963, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:42:36,982 INFO L87 Difference]: Start difference. First operand 12582 states and 16885 transitions. Second operand has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 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) [2024-12-02 10:42:40,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:40,228 INFO L93 Difference]: Finished difference Result 59307 states and 77033 transitions. [2024-12-02 10:42:40,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-12-02 10:42:40,253 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 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) Word has length 89 [2024-12-02 10:42:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:40,283 INFO L225 Difference]: With dead ends: 59307 [2024-12-02 10:42:40,283 INFO L226 Difference]: Without dead ends: 48655 [2024-12-02 10:42:40,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1091 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=926, Invalid=3766, Unknown=0, NotChecked=0, Total=4692 [2024-12-02 10:42:40,292 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 23309 mSDsluCounter, 9725 mSDsCounter, 0 mSdLazyCounter, 1384 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23309 SdHoareTripleChecker+Valid, 11265 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:40,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23309 Valid, 11265 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1384 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 10:42:40,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48655 states. [2024-12-02 10:42:41,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48655 to 48103. [2024-12-02 10:42:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48103 states, 48101 states have (on average 1.2784765389492943) internal successors, (61496), 48102 states have internal predecessors, (61496), 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) [2024-12-02 10:42:41,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48103 states to 48103 states and 61496 transitions. [2024-12-02 10:42:41,819 INFO L78 Accepts]: Start accepts. Automaton has 48103 states and 61496 transitions. Word has length 89 [2024-12-02 10:42:41,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:41,819 INFO L471 AbstractCegarLoop]: Abstraction has 48103 states and 61496 transitions. [2024-12-02 10:42:41,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.970588235294118) internal successors, (237), 34 states have internal predecessors, (237), 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) [2024-12-02 10:42:41,819 INFO L276 IsEmpty]: Start isEmpty. Operand 48103 states and 61496 transitions. [2024-12-02 10:42:41,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 10:42:41,821 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:41,821 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:41,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:42:42,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:42,022 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:42,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:42,022 INFO L85 PathProgramCache]: Analyzing trace with hash 154349394, now seen corresponding path program 1 times [2024-12-02 10:42:42,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:42,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343781287] [2024-12-02 10:42:42,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:42,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:42,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:42,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343781287] [2024-12-02 10:42:42,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343781287] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:42:42,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592304908] [2024-12-02 10:42:42,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:42,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:42,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:42:42,482 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:42:42,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 10:42:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:42,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 10:42:42,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:42:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:43,070 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:42:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:43,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592304908] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:42:43,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:42:43,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-12-02 10:42:43,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753494985] [2024-12-02 10:42:43,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:42:43,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 10:42:43,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:43,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 10:42:43,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2024-12-02 10:42:43,724 INFO L87 Difference]: Start difference. First operand 48103 states and 61496 transitions. Second operand has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 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) [2024-12-02 10:42:47,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:42:47,194 INFO L93 Difference]: Finished difference Result 141946 states and 180521 transitions. [2024-12-02 10:42:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-12-02 10:42:47,195 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 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) Word has length 90 [2024-12-02 10:42:47,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:42:47,266 INFO L225 Difference]: With dead ends: 141946 [2024-12-02 10:42:47,266 INFO L226 Difference]: Without dead ends: 98142 [2024-12-02 10:42:47,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=622, Invalid=2458, Unknown=0, NotChecked=0, Total=3080 [2024-12-02 10:42:47,295 INFO L435 NwaCegarLoop]: 1544 mSDtfsCounter, 21780 mSDsluCounter, 6915 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21780 SdHoareTripleChecker+Valid, 8459 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:42:47,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21780 Valid, 8459 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 10:42:47,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98142 states. [2024-12-02 10:42:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98142 to 90990. [2024-12-02 10:42:50,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90990 states, 90988 states have (on average 1.2440981228293841) internal successors, (113198), 90989 states have internal predecessors, (113198), 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) [2024-12-02 10:42:50,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90990 states to 90990 states and 113198 transitions. [2024-12-02 10:42:50,333 INFO L78 Accepts]: Start accepts. Automaton has 90990 states and 113198 transitions. Word has length 90 [2024-12-02 10:42:50,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:42:50,334 INFO L471 AbstractCegarLoop]: Abstraction has 90990 states and 113198 transitions. [2024-12-02 10:42:50,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.76) internal successors, (244), 24 states have internal predecessors, (244), 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) [2024-12-02 10:42:50,334 INFO L276 IsEmpty]: Start isEmpty. Operand 90990 states and 113198 transitions. [2024-12-02 10:42:50,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 10:42:50,336 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:42:50,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:50,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 10:42:50,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 10:42:50,536 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:42:50,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:50,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1858200354, now seen corresponding path program 1 times [2024-12-02 10:42:50,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:50,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683494729] [2024-12-02 10:42:50,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:50,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:51,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:51,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683494729] [2024-12-02 10:42:51,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683494729] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:42:51,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799873878] [2024-12-02 10:42:51,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:51,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:42:51,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:42:51,663 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:42:51,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 10:42:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:51,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-12-02 10:42:51,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:42:56,403 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:56,403 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:43:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:43:00,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799873878] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:43:00,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:43:00,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 25, 20] total 60 [2024-12-02 10:43:00,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565158334] [2024-12-02 10:43:00,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:43:00,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-12-02 10:43:00,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:43:00,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-12-02 10:43:00,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=3275, Unknown=0, NotChecked=0, Total=3540 [2024-12-02 10:43:00,874 INFO L87 Difference]: Start difference. First operand 90990 states and 113198 transitions. Second operand has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 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) [2024-12-02 10:48:58,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:48:58,640 INFO L93 Difference]: Finished difference Result 355295 states and 440379 transitions. [2024-12-02 10:48:58,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 814 states. [2024-12-02 10:48:58,641 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 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) Word has length 92 [2024-12-02 10:48:58,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:48:59,053 INFO L225 Difference]: With dead ends: 355295 [2024-12-02 10:48:59,054 INFO L226 Difference]: Without dead ends: 321134 [2024-12-02 10:48:59,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 869 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355959 ImplicationChecksByTransitivity, 329.8s TimeCoverageRelationStatistics Valid=71648, Invalid=686122, Unknown=0, NotChecked=0, Total=757770 [2024-12-02 10:48:59,155 INFO L435 NwaCegarLoop]: 1765 mSDtfsCounter, 42491 mSDsluCounter, 40985 mSDsCounter, 0 mSdLazyCounter, 15481 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42491 SdHoareTripleChecker+Valid, 42750 SdHoareTripleChecker+Invalid, 15815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 15481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2024-12-02 10:48:59,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42491 Valid, 42750 Invalid, 15815 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [334 Valid, 15481 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2024-12-02 10:48:59,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321134 states. [2024-12-02 10:49:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321134 to 127419. [2024-12-02 10:49:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127419 states, 127417 states have (on average 1.2487109255436872) internal successors, (159107), 127418 states have internal predecessors, (159107), 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) [2024-12-02 10:49:06,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127419 states to 127419 states and 159107 transitions. [2024-12-02 10:49:06,462 INFO L78 Accepts]: Start accepts. Automaton has 127419 states and 159107 transitions. Word has length 92 [2024-12-02 10:49:06,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:49:06,462 INFO L471 AbstractCegarLoop]: Abstraction has 127419 states and 159107 transitions. [2024-12-02 10:49:06,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 4.233333333333333) internal successors, (254), 60 states have internal predecessors, (254), 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) [2024-12-02 10:49:06,463 INFO L276 IsEmpty]: Start isEmpty. Operand 127419 states and 159107 transitions. [2024-12-02 10:49:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-12-02 10:49:06,466 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:49:06,466 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:49:06,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 10:49:06,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:49:06,667 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:49:06,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:49:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2026037978, now seen corresponding path program 1 times [2024-12-02 10:49:06,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:49:06,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659824555] [2024-12-02 10:49:06,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:49:06,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:49:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:49:10,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:49:10,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:49:10,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659824555] [2024-12-02 10:49:10,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659824555] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:49:10,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918020510] [2024-12-02 10:49:10,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:49:10,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:49:10,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:49:10,341 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:49:10,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 10:49:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:49:10,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 10:49:10,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:49:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:49:11,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:49:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:49:12,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918020510] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:49:12,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:49:12,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 51 [2024-12-02 10:49:12,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81024320] [2024-12-02 10:49:12,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:49:12,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-12-02 10:49:12,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:49:12,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-12-02 10:49:12,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=2402, Unknown=0, NotChecked=0, Total=2550 [2024-12-02 10:49:12,707 INFO L87 Difference]: Start difference. First operand 127419 states and 159107 transitions. Second operand has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 states have internal predecessors, (239), 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) [2024-12-02 10:50:12,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:50:12,782 INFO L93 Difference]: Finished difference Result 237721 states and 295036 transitions. [2024-12-02 10:50:12,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2024-12-02 10:50:12,783 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 states have internal predecessors, (239), 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) Word has length 92 [2024-12-02 10:50:12,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:50:12,997 INFO L225 Difference]: With dead ends: 237721 [2024-12-02 10:50:12,997 INFO L226 Difference]: Without dead ends: 197430 [2024-12-02 10:50:13,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16701 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=9549, Invalid=43121, Unknown=0, NotChecked=0, Total=52670 [2024-12-02 10:50:13,040 INFO L435 NwaCegarLoop]: 1690 mSDtfsCounter, 28542 mSDsluCounter, 32106 mSDsCounter, 0 mSdLazyCounter, 7663 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28542 SdHoareTripleChecker+Valid, 33796 SdHoareTripleChecker+Invalid, 7860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 7663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-12-02 10:50:13,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28542 Valid, 33796 Invalid, 7860 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [197 Valid, 7663 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-12-02 10:50:13,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197430 states. [2024-12-02 10:50:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197430 to 113734. [2024-12-02 10:50:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113734 states, 113732 states have (on average 1.2435726092920198) internal successors, (141434), 113733 states have internal predecessors, (141434), 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) [2024-12-02 10:50:18,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113734 states to 113734 states and 141434 transitions. [2024-12-02 10:50:18,945 INFO L78 Accepts]: Start accepts. Automaton has 113734 states and 141434 transitions. Word has length 92 [2024-12-02 10:50:18,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:50:18,945 INFO L471 AbstractCegarLoop]: Abstraction has 113734 states and 141434 transitions. [2024-12-02 10:50:18,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 4.686274509803922) internal successors, (239), 51 states have internal predecessors, (239), 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) [2024-12-02 10:50:18,945 INFO L276 IsEmpty]: Start isEmpty. Operand 113734 states and 141434 transitions. [2024-12-02 10:50:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 10:50:18,947 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:50:18,947 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:50:18,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 10:50:19,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:19,147 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:50:19,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:50:19,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1004211701, now seen corresponding path program 1 times [2024-12-02 10:50:19,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:50:19,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269709255] [2024-12-02 10:50:19,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:50:19,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:50:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:50:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:50:20,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:50:20,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269709255] [2024-12-02 10:50:20,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269709255] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:50:20,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739817712] [2024-12-02 10:50:20,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:50:20,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:50:20,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:50:20,917 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:50:20,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 10:50:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:50:21,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 10:50:21,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:50:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:50:23,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:50:26,243 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:50:26,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739817712] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:50:26,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:50:26,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 20, 19] total 58 [2024-12-02 10:50:26,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606548446] [2024-12-02 10:50:26,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:50:26,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-12-02 10:50:26,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:50:26,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-12-02 10:50:26,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=3034, Unknown=0, NotChecked=0, Total=3306 [2024-12-02 10:50:26,246 INFO L87 Difference]: Start difference. First operand 113734 states and 141434 transitions. Second operand has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 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) [2024-12-02 10:51:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:51:30,285 INFO L93 Difference]: Finished difference Result 276299 states and 342483 transitions. [2024-12-02 10:51:30,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2024-12-02 10:51:30,285 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 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) Word has length 93 [2024-12-02 10:51:30,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:51:30,478 INFO L225 Difference]: With dead ends: 276299 [2024-12-02 10:51:30,478 INFO L226 Difference]: Without dead ends: 237891 [2024-12-02 10:51:30,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 311 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39550 ImplicationChecksByTransitivity, 48.0s TimeCoverageRelationStatistics Valid=15447, Invalid=82209, Unknown=0, NotChecked=0, Total=97656 [2024-12-02 10:51:30,516 INFO L435 NwaCegarLoop]: 1645 mSDtfsCounter, 35773 mSDsluCounter, 31315 mSDsCounter, 0 mSdLazyCounter, 7819 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35773 SdHoareTripleChecker+Valid, 32960 SdHoareTripleChecker+Invalid, 8070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 7819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-12-02 10:51:30,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35773 Valid, 32960 Invalid, 8070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [251 Valid, 7819 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-12-02 10:51:30,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237891 states. [2024-12-02 10:51:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237891 to 129163. [2024-12-02 10:51:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129163 states, 129161 states have (on average 1.240629911505795) internal successors, (160241), 129162 states have internal predecessors, (160241), 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) [2024-12-02 10:51:38,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129163 states to 129163 states and 160241 transitions. [2024-12-02 10:51:38,536 INFO L78 Accepts]: Start accepts. Automaton has 129163 states and 160241 transitions. Word has length 93 [2024-12-02 10:51:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:51:38,536 INFO L471 AbstractCegarLoop]: Abstraction has 129163 states and 160241 transitions. [2024-12-02 10:51:38,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 4.241379310344827) internal successors, (246), 58 states have internal predecessors, (246), 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) [2024-12-02 10:51:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 129163 states and 160241 transitions. [2024-12-02 10:51:38,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 10:51:38,537 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:51:38,538 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:51:38,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 10:51:38,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:51:38,738 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:51:38,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:51:38,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1461263243, now seen corresponding path program 1 times [2024-12-02 10:51:38,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:51:38,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426691441] [2024-12-02 10:51:38,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:51:38,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:51:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:51:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:51:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:51:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426691441] [2024-12-02 10:51:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426691441] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:51:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119325104] [2024-12-02 10:51:39,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:51:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:51:39,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:51:39,443 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:51:39,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 10:51:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:51:39,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 10:51:39,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:51:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:51:40,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:51:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:51:41,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119325104] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:51:41,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:51:41,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2024-12-02 10:51:41,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591158902] [2024-12-02 10:51:41,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:51:41,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-12-02 10:51:41,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:51:41,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-12-02 10:51:41,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=997, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 10:51:41,253 INFO L87 Difference]: Start difference. First operand 129163 states and 160241 transitions. Second operand has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 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) [2024-12-02 10:51:56,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:51:56,248 INFO L93 Difference]: Finished difference Result 227735 states and 280392 transitions. [2024-12-02 10:51:56,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-12-02 10:51:56,248 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 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) Word has length 93 [2024-12-02 10:51:56,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:51:56,376 INFO L225 Difference]: With dead ends: 227735 [2024-12-02 10:51:56,376 INFO L226 Difference]: Without dead ends: 161273 [2024-12-02 10:51:56,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2176 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1632, Invalid=6378, Unknown=0, NotChecked=0, Total=8010 [2024-12-02 10:51:56,407 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 15560 mSDsluCounter, 21865 mSDsCounter, 0 mSdLazyCounter, 1806 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15560 SdHoareTripleChecker+Valid, 23424 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:51:56,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15560 Valid, 23424 Invalid, 1854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 1806 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 10:51:56,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161273 states. [2024-12-02 10:52:01,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161273 to 74148. [2024-12-02 10:52:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74148 states, 74146 states have (on average 1.2353869392819572) internal successors, (91599), 74147 states have internal predecessors, (91599), 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) [2024-12-02 10:52:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74148 states to 74148 states and 91599 transitions. [2024-12-02 10:52:01,328 INFO L78 Accepts]: Start accepts. Automaton has 74148 states and 91599 transitions. Word has length 93 [2024-12-02 10:52:01,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:52:01,328 INFO L471 AbstractCegarLoop]: Abstraction has 74148 states and 91599 transitions. [2024-12-02 10:52:01,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 7.323529411764706) internal successors, (249), 34 states have internal predecessors, (249), 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) [2024-12-02 10:52:01,328 INFO L276 IsEmpty]: Start isEmpty. Operand 74148 states and 91599 transitions. [2024-12-02 10:52:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-02 10:52:01,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:52:01,329 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:52:01,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 10:52:01,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:52:01,530 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:52:01,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:52:01,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1318790849, now seen corresponding path program 1 times [2024-12-02 10:52:01,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:52:01,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809797906] [2024-12-02 10:52:01,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:52:01,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:52:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:52:01,631 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:52:01,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:52:01,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809797906] [2024-12-02 10:52:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809797906] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:52:01,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:52:01,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:52:01,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591917665] [2024-12-02 10:52:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:52:01,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:52:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:52:01,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:52:01,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:52:01,632 INFO L87 Difference]: Start difference. First operand 74148 states and 91599 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-12-02 10:52:11,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:52:11,597 INFO L93 Difference]: Finished difference Result 77905 states and 98489 transitions. [2024-12-02 10:52:11,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:52:11,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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) Word has length 93 [2024-12-02 10:52:11,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:52:11,646 INFO L225 Difference]: With dead ends: 77905 [2024-12-02 10:52:11,646 INFO L226 Difference]: Without dead ends: 76401 [2024-12-02 10:52:11,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:52:11,654 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 2369 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4805 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 5943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 4805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-12-02 10:52:11,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 819 Invalid, 5943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 4805 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-12-02 10:52:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76401 states. [2024-12-02 10:52:16,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76401 to 76401. [2024-12-02 10:52:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76401 states, 76399 states have (on average 1.2328433618241077) internal successors, (94188), 76400 states have internal predecessors, (94188), 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) [2024-12-02 10:52:16,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76401 states to 76401 states and 94188 transitions. [2024-12-02 10:52:16,481 INFO L78 Accepts]: Start accepts. Automaton has 76401 states and 94188 transitions. Word has length 93 [2024-12-02 10:52:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:52:16,482 INFO L471 AbstractCegarLoop]: Abstraction has 76401 states and 94188 transitions. [2024-12-02 10:52:16,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-12-02 10:52:16,482 INFO L276 IsEmpty]: Start isEmpty. Operand 76401 states and 94188 transitions. [2024-12-02 10:52:16,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-12-02 10:52:16,482 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:52:16,482 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:52:16,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-12-02 10:52:16,483 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:52:16,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:52:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1057586264, now seen corresponding path program 1 times [2024-12-02 10:52:16,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:52:16,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739904301] [2024-12-02 10:52:16,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:52:16,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:52:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:52:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:52:17,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:52:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739904301] [2024-12-02 10:52:17,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739904301] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:52:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593188465] [2024-12-02 10:52:17,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:52:17,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:52:17,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:52:17,120 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:52:17,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 10:52:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:52:17,243 INFO L256 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-12-02 10:52:17,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:52:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:52:24,454 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:52:37,389 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:52:37,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593188465] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:52:37,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:52:37,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 38, 31] total 75 [2024-12-02 10:52:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704168367] [2024-12-02 10:52:37,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:52:37,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-12-02 10:52:37,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:52:37,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-12-02 10:52:37,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=723, Invalid=4827, Unknown=0, NotChecked=0, Total=5550 [2024-12-02 10:52:37,390 INFO L87 Difference]: Start difference. First operand 76401 states and 94188 transitions. Second operand has 75 states, 75 states have (on average 3.4133333333333336) internal successors, (256), 75 states have internal predecessors, (256), 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) [2024-12-02 10:54:40,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:40,870 INFO L93 Difference]: Finished difference Result 239021 states and 295243 transitions. [2024-12-02 10:54:40,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-12-02 10:54:40,871 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.4133333333333336) internal successors, (256), 75 states have internal predecessors, (256), 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) Word has length 94 [2024-12-02 10:54:40,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:41,037 INFO L225 Difference]: With dead ends: 239021 [2024-12-02 10:54:41,037 INFO L226 Difference]: Without dead ends: 209461 [2024-12-02 10:54:41,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26513 ImplicationChecksByTransitivity, 106.2s TimeCoverageRelationStatistics Valid=11949, Invalid=59073, Unknown=0, NotChecked=0, Total=71022 [2024-12-02 10:54:41,071 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 33786 mSDsluCounter, 33643 mSDsCounter, 0 mSdLazyCounter, 8477 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33786 SdHoareTripleChecker+Valid, 35241 SdHoareTripleChecker+Invalid, 8668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 8477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:41,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33786 Valid, 35241 Invalid, 8668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [191 Valid, 8477 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2024-12-02 10:54:41,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209461 states. [2024-12-02 10:54:46,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209461 to 64442. [2024-12-02 10:54:46,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64442 states, 64440 states have (on average 1.2321073867163252) internal successors, (79397), 64441 states have internal predecessors, (79397), 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) [2024-12-02 10:54:46,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64442 states to 64442 states and 79397 transitions. [2024-12-02 10:54:46,436 INFO L78 Accepts]: Start accepts. Automaton has 64442 states and 79397 transitions. Word has length 94 [2024-12-02 10:54:46,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:46,437 INFO L471 AbstractCegarLoop]: Abstraction has 64442 states and 79397 transitions. [2024-12-02 10:54:46,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.4133333333333336) internal successors, (256), 75 states have internal predecessors, (256), 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) [2024-12-02 10:54:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 64442 states and 79397 transitions. [2024-12-02 10:54:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-12-02 10:54:46,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:46,438 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:54:46,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 10:54:46,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:46,638 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:46,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1347442556, now seen corresponding path program 1 times [2024-12-02 10:54:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:46,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883730458] [2024-12-02 10:54:46,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:46,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:54:46,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883730458] [2024-12-02 10:54:46,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883730458] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:46,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141485] [2024-12-02 10:54:46,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:46,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:46,719 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:46,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 10:54:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:46,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:54:46,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:54:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:54:46,853 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:54:46,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141485] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:54:46,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:54:46,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 10:54:46,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799274810] [2024-12-02 10:54:46,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:54:46,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:54:46,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:54:46,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:54:46,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:54:46,854 INFO L87 Difference]: Start difference. First operand 64442 states and 79397 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 10:54:53,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:54:53,906 INFO L93 Difference]: Finished difference Result 68950 states and 86780 transitions. [2024-12-02 10:54:53,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:54:53,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) Word has length 95 [2024-12-02 10:54:53,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:54:53,954 INFO L225 Difference]: With dead ends: 68950 [2024-12-02 10:54:53,954 INFO L226 Difference]: Without dead ends: 65944 [2024-12-02 10:54:53,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:54:53,966 INFO L435 NwaCegarLoop]: 1075 mSDtfsCounter, 767 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 1188 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:54:53,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 1188 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-12-02 10:54:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65944 states. [2024-12-02 10:54:58,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65944 to 65944. [2024-12-02 10:54:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65944 states, 65942 states have (on average 1.2401049407054685) internal successors, (81775), 65943 states have internal predecessors, (81775), 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) [2024-12-02 10:54:58,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65944 states to 65944 states and 81775 transitions. [2024-12-02 10:54:58,715 INFO L78 Accepts]: Start accepts. Automaton has 65944 states and 81775 transitions. Word has length 95 [2024-12-02 10:54:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:54:58,715 INFO L471 AbstractCegarLoop]: Abstraction has 65944 states and 81775 transitions. [2024-12-02 10:54:58,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-12-02 10:54:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 65944 states and 81775 transitions. [2024-12-02 10:54:58,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:54:58,720 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:54:58,720 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:54:58,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 10:54:58,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 10:54:58,921 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:54:58,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:54:58,921 INFO L85 PathProgramCache]: Analyzing trace with hash 108690406, now seen corresponding path program 1 times [2024-12-02 10:54:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:54:58,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318870242] [2024-12-02 10:54:58,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:58,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:54:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 55 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:54:59,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:54:59,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318870242] [2024-12-02 10:54:59,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318870242] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:54:59,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385468590] [2024-12-02 10:54:59,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:54:59,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:54:59,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:54:59,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:54:59,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 10:54:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:54:59,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:54:59,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:55:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 42 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:55:00,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:55:02,925 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 39 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:55:02,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385468590] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:55:02,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:55:02,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 34 [2024-12-02 10:55:02,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600554104] [2024-12-02 10:55:02,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:55:02,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-12-02 10:55:02,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:55:02,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-12-02 10:55:02,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1072, Unknown=0, NotChecked=0, Total=1190 [2024-12-02 10:55:02,927 INFO L87 Difference]: Start difference. First operand 65944 states and 81775 transitions. Second operand has 35 states, 35 states have (on average 11.2) internal successors, (392), 34 states have internal predecessors, (392), 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) [2024-12-02 10:55:20,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:55:20,412 INFO L93 Difference]: Finished difference Result 158015 states and 193994 transitions. [2024-12-02 10:55:20,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-12-02 10:55:20,413 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 11.2) internal successors, (392), 34 states have internal predecessors, (392), 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) Word has length 144 [2024-12-02 10:55:20,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:55:20,491 INFO L225 Difference]: With dead ends: 158015 [2024-12-02 10:55:20,491 INFO L226 Difference]: Without dead ends: 106142 [2024-12-02 10:55:20,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5723 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=3251, Invalid=15931, Unknown=0, NotChecked=0, Total=19182 [2024-12-02 10:55:20,515 INFO L435 NwaCegarLoop]: 1560 mSDtfsCounter, 29139 mSDsluCounter, 15031 mSDsCounter, 0 mSdLazyCounter, 2905 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29139 SdHoareTripleChecker+Valid, 16591 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-12-02 10:55:20,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29139 Valid, 16591 Invalid, 2972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 2905 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-12-02 10:55:20,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106142 states. [2024-12-02 10:55:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106142 to 87848. [2024-12-02 10:55:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87848 states, 87846 states have (on average 1.228274480340596) internal successors, (107899), 87847 states have internal predecessors, (107899), 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) [2024-12-02 10:55:27,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87848 states to 87848 states and 107899 transitions. [2024-12-02 10:55:27,541 INFO L78 Accepts]: Start accepts. Automaton has 87848 states and 107899 transitions. Word has length 144 [2024-12-02 10:55:27,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 10:55:27,541 INFO L471 AbstractCegarLoop]: Abstraction has 87848 states and 107899 transitions. [2024-12-02 10:55:27,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 11.2) internal successors, (392), 34 states have internal predecessors, (392), 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) [2024-12-02 10:55:27,541 INFO L276 IsEmpty]: Start isEmpty. Operand 87848 states and 107899 transitions. [2024-12-02 10:55:27,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 10:55:27,546 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 10:55:27,546 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:55:27,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 10:55:27,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-12-02 10:55:27,746 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 10:55:27,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:55:27,746 INFO L85 PathProgramCache]: Analyzing trace with hash 148767320, now seen corresponding path program 1 times [2024-12-02 10:55:27,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:55:27,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361487962] [2024-12-02 10:55:27,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:27,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:55:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 41 proven. 79 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:55:28,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:55:28,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361487962] [2024-12-02 10:55:28,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361487962] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:55:28,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910349128] [2024-12-02 10:55:28,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:55:28,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:55:28,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:55:28,474 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:55:28,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e40b65-0a40-4ab2-9a19-f99bc4aa0e49/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 10:55:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:55:28,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 10:55:28,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:55:29,570 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 29 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:55:29,571 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:55:31,403 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 24 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:55:31,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910349128] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:55:31,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:55:31,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 35 [2024-12-02 10:55:31,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695103580] [2024-12-02 10:55:31,404 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:55:31,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-12-02 10:55:31,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:55:31,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-12-02 10:55:31,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2024-12-02 10:55:31,405 INFO L87 Difference]: Start difference. First operand 87848 states and 107899 transitions. Second operand has 36 states, 36 states have (on average 11.333333333333334) internal successors, (408), 35 states have internal predecessors, (408), 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) [2024-12-02 10:55:48,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:55:48,936 INFO L93 Difference]: Finished difference Result 161300 states and 198781 transitions. [2024-12-02 10:55:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-12-02 10:55:48,936 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 11.333333333333334) internal successors, (408), 35 states have internal predecessors, (408), 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) Word has length 144 [2024-12-02 10:55:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 10:55:49,015 INFO L225 Difference]: With dead ends: 161300 [2024-12-02 10:55:49,015 INFO L226 Difference]: Without dead ends: 103402 [2024-12-02 10:55:49,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5614 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=3311, Invalid=16149, Unknown=0, NotChecked=0, Total=19460 [2024-12-02 10:55:49,040 INFO L435 NwaCegarLoop]: 1555 mSDtfsCounter, 26841 mSDsluCounter, 17687 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26841 SdHoareTripleChecker+Valid, 19242 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-12-02 10:55:49,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26841 Valid, 19242 Invalid, 2588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [83 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-12-02 10:55:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103402 states.