./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-100-1-6-sat-3.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_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-100-1-6-sat-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c68703b99e4fc9d7dbed58c2397ccb01016a7ad64de3604541cb2a5ca0cd354e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:08:19,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:08:20,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:08:20,064 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:08:20,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:08:20,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:08:20,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:08:20,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:08:20,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:08:20,092 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:08:20,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:08:20,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:08:20,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:08:20,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:08:20,093 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:08:20,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:08:20,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:08:20,094 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:08:20,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:08:20,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:08:20,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:08:20,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:08:20,095 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:08:20,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:08:20,095 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:08:20,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:08:20,095 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:08:20,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:08:20,096 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:08:20,096 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:08:20,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:08:20,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:08:20,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:08:20,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:08:20,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:08:20,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:08:20,097 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:08:20,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:08:20,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:08:20,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:08:20,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:08:20,098 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_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c68703b99e4fc9d7dbed58c2397ccb01016a7ad64de3604541cb2a5ca0cd354e [2024-11-28 02:08:20,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:08:20,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:08:20,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:08:20,451 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:08:20,451 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:08:20,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-100-1-6-sat-3.c [2024-11-28 02:08:23,714 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/data/d7b18c655/b986b6d9cd574bd89665c4763f30ac9e/FLAG810aa528f [2024-11-28 02:08:24,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:08:24,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/sv-benchmarks/c/xcsp/aim-100-1-6-sat-3.c [2024-11-28 02:08:24,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/data/d7b18c655/b986b6d9cd574bd89665c4763f30ac9e/FLAG810aa528f [2024-11-28 02:08:24,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/data/d7b18c655/b986b6d9cd574bd89665c4763f30ac9e [2024-11-28 02:08:24,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:08:24,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:08:24,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:08:24,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:08:24,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:08:24,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:08:24" (1/1) ... [2024-11-28 02:08:24,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1622ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:24, skipping insertion in model container [2024-11-28 02:08:24,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:08:24" (1/1) ... [2024-11-28 02:08:24,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:08:24,786 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_acfc7fbb-78f7-4034-a584-1586119a0799/sv-benchmarks/c/xcsp/aim-100-1-6-sat-3.c[19060,19073] [2024-11-28 02:08:24,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:08:24,850 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:08:25,030 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_acfc7fbb-78f7-4034-a584-1586119a0799/sv-benchmarks/c/xcsp/aim-100-1-6-sat-3.c[19060,19073] [2024-11-28 02:08:25,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:08:25,056 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:08:25,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25 WrapperNode [2024-11-28 02:08:25,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:08:25,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:08:25,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:08:25,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:08:25,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,361 INFO L138 Inliner]: procedures = 13, calls = 363, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3464 [2024-11-28 02:08:25,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:08:25,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:08:25,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:08:25,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:08:25,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,571 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:08:25,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,571 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,689 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,700 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,781 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:08:25,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:08:25,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:08:25,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:08:25,826 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (1/1) ... [2024-11-28 02:08:25,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:08:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:08:25,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:08:25,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:08:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:08:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:08:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:08:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:08:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-28 02:08:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-28 02:08:26,236 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:08:26,239 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:08:32,075 INFO L? ?]: Removed 809 outVars from TransFormulas that were not future-live. [2024-11-28 02:08:32,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:08:32,152 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:08:32,156 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:08:32,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:08:32 BoogieIcfgContainer [2024-11-28 02:08:32,156 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:08:32,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:08:32,162 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:08:32,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:08:32,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:08:24" (1/3) ... [2024-11-28 02:08:32,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60264324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:08:32, skipping insertion in model container [2024-11-28 02:08:32,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:08:25" (2/3) ... [2024-11-28 02:08:32,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60264324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:08:32, skipping insertion in model container [2024-11-28 02:08:32,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:08:32" (3/3) ... [2024-11-28 02:08:32,175 INFO L128 eAbstractionObserver]: Analyzing ICFG aim-100-1-6-sat-3.c [2024-11-28 02:08:32,196 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:08:32,199 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aim-100-1-6-sat-3.c that has 2 procedures, 1595 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:08:32,367 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:08:32,388 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;@53a8370c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:08:32,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:08:32,402 INFO L276 IsEmpty]: Start isEmpty. Operand has 1595 states, 1236 states have (on average 1.5258899676375404) internal successors, (1886), 1237 states have internal predecessors, (1886), 356 states have call successors, (356), 1 states have call predecessors, (356), 1 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2024-11-28 02:08:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2364 [2024-11-28 02:08:32,688 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:08:32,690 INFO L218 NwaCegarLoop]: trace histogram [356, 356, 356, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:08:32,691 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:08:32,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:08:32,701 INFO L85 PathProgramCache]: Analyzing trace with hash 530957098, now seen corresponding path program 1 times [2024-11-28 02:08:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:08:32,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794256762] [2024-11-28 02:08:32,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:08:32,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:08:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:21,516 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 2529 proven. 14760 refuted. 0 times theorem prover too weak. 235471 trivial. 0 not checked. [2024-11-28 02:09:21,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:09:21,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794256762] [2024-11-28 02:09:21,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794256762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:09:21,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047432824] [2024-11-28 02:09:21,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:09:21,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:09:21,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:09:21,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:09:21,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:09:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:09:22,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 4558 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 02:09:22,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:09:32,295 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 47364 proven. 4368 refuted. 0 times theorem prover too weak. 201028 trivial. 0 not checked. [2024-11-28 02:09:32,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:09:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 1284 proven. 5016 refuted. 0 times theorem prover too weak. 246460 trivial. 0 not checked. [2024-11-28 02:09:45,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047432824] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:09:45,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:09:45,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 13, 13] total 49 [2024-11-28 02:09:45,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375093579] [2024-11-28 02:09:45,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:09:45,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-28 02:09:45,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:09:45,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-28 02:09:45,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=280, Invalid=2072, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 02:09:45,513 INFO L87 Difference]: Start difference. First operand has 1595 states, 1236 states have (on average 1.5258899676375404) internal successors, (1886), 1237 states have internal predecessors, (1886), 356 states have call successors, (356), 1 states have call predecessors, (356), 1 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 49 states, 31 states have (on average 41.645161290322584) internal successors, (1291), 36 states have internal predecessors, (1291), 43 states have call successors, (881), 2 states have call predecessors, (881), 3 states have return successors, (883), 38 states have call predecessors, (883), 43 states have call successors, (883) [2024-11-28 02:10:26,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:26,225 INFO L93 Difference]: Finished difference Result 15503 states and 27149 transitions. [2024-11-28 02:10:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-28 02:10:26,230 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 31 states have (on average 41.645161290322584) internal successors, (1291), 36 states have internal predecessors, (1291), 43 states have call successors, (881), 2 states have call predecessors, (881), 3 states have return successors, (883), 38 states have call predecessors, (883), 43 states have call successors, (883) Word has length 2363 [2024-11-28 02:10:26,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:26,343 INFO L225 Difference]: With dead ends: 15503 [2024-11-28 02:10:26,343 INFO L226 Difference]: Without dead ends: 13911 [2024-11-28 02:10:26,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4892 GetRequests, 4751 SyntacticMatches, 6 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5446 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=4566, Invalid=14066, Unknown=0, NotChecked=0, Total=18632 [2024-11-28 02:10:26,378 INFO L435 NwaCegarLoop]: 5826 mSDtfsCounter, 99429 mSDsluCounter, 71027 mSDsCounter, 0 mSdLazyCounter, 18513 mSolverCounterSat, 10145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99447 SdHoareTripleChecker+Valid, 76853 SdHoareTripleChecker+Invalid, 28658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 10145 IncrementalHoareTripleChecker+Valid, 18513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:26,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99447 Valid, 76853 Invalid, 28658 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [10145 Valid, 18513 Invalid, 0 Unknown, 0 Unchecked, 25.4s Time] [2024-11-28 02:10:26,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13911 states. [2024-11-28 02:10:27,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13911 to 4694. [2024-11-28 02:10:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4694 states, 3962 states have (on average 1.5595658758202928) internal successors, (6179), 3962 states have internal predecessors, (6179), 730 states have call successors, (730), 1 states have call predecessors, (730), 1 states have return successors, (730), 730 states have call predecessors, (730), 730 states have call successors, (730) [2024-11-28 02:10:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4694 states to 4694 states and 7639 transitions. [2024-11-28 02:10:27,636 INFO L78 Accepts]: Start accepts. Automaton has 4694 states and 7639 transitions. Word has length 2363 [2024-11-28 02:10:27,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:27,648 INFO L471 AbstractCegarLoop]: Abstraction has 4694 states and 7639 transitions. [2024-11-28 02:10:27,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 31 states have (on average 41.645161290322584) internal successors, (1291), 36 states have internal predecessors, (1291), 43 states have call successors, (881), 2 states have call predecessors, (881), 3 states have return successors, (883), 38 states have call predecessors, (883), 43 states have call successors, (883) [2024-11-28 02:10:27,651 INFO L276 IsEmpty]: Start isEmpty. Operand 4694 states and 7639 transitions. [2024-11-28 02:10:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2366 [2024-11-28 02:10:27,945 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:27,948 INFO L218 NwaCegarLoop]: trace histogram [356, 356, 356, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:27,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:10:28,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:10:28,150 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:28,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash 185011522, now seen corresponding path program 1 times [2024-11-28 02:10:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:28,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954865184] [2024-11-28 02:10:28,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:28,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 528 proven. 1596 refuted. 0 times theorem prover too weak. 250636 trivial. 0 not checked. [2024-11-28 02:10:36,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:10:36,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954865184] [2024-11-28 02:10:36,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954865184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:10:36,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [553171722] [2024-11-28 02:10:36,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:36,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:36,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:10:36,623 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:10:36,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:10:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:10:37,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 4564 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:10:37,613 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:10:39,021 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 109308 proven. 930 refuted. 0 times theorem prover too weak. 142522 trivial. 0 not checked. [2024-11-28 02:10:39,021 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:10:41,416 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 528 proven. 1596 refuted. 0 times theorem prover too weak. 250636 trivial. 0 not checked. [2024-11-28 02:10:41,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [553171722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:10:41,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:10:41,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-11-28 02:10:41,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146182814] [2024-11-28 02:10:41,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:10:41,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:10:41,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:10:41,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:10:41,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:10:41,429 INFO L87 Difference]: Start difference. First operand 4694 states and 7639 transitions. Second operand has 12 states, 11 states have (on average 60.90909090909091) internal successors, (670), 11 states have internal predecessors, (670), 6 states have call successors, (489), 2 states have call predecessors, (489), 3 states have return successors, (489), 6 states have call predecessors, (489), 6 states have call successors, (489) [2024-11-28 02:10:47,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:10:47,364 INFO L93 Difference]: Finished difference Result 14413 states and 23454 transitions. [2024-11-28 02:10:47,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:10:47,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 60.90909090909091) internal successors, (670), 11 states have internal predecessors, (670), 6 states have call successors, (489), 2 states have call predecessors, (489), 3 states have return successors, (489), 6 states have call predecessors, (489), 6 states have call successors, (489) Word has length 2365 [2024-11-28 02:10:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:10:47,420 INFO L225 Difference]: With dead ends: 14413 [2024-11-28 02:10:47,421 INFO L226 Difference]: Without dead ends: 11531 [2024-11-28 02:10:47,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4743 GetRequests, 4728 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:10:47,429 INFO L435 NwaCegarLoop]: 3239 mSDtfsCounter, 10011 mSDsluCounter, 15528 mSDsCounter, 0 mSdLazyCounter, 4652 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10320 SdHoareTripleChecker+Valid, 18767 SdHoareTripleChecker+Invalid, 5167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 4652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:10:47,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10320 Valid, 18767 Invalid, 5167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [515 Valid, 4652 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 02:10:47,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11531 states. [2024-11-28 02:10:48,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11531 to 8417. [2024-11-28 02:10:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8417 states, 7227 states have (on average 1.564134495641345) internal successors, (11304), 7227 states have internal predecessors, (11304), 1188 states have call successors, (1188), 1 states have call predecessors, (1188), 1 states have return successors, (1188), 1188 states have call predecessors, (1188), 1188 states have call successors, (1188) [2024-11-28 02:10:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8417 states to 8417 states and 13680 transitions. [2024-11-28 02:10:48,807 INFO L78 Accepts]: Start accepts. Automaton has 8417 states and 13680 transitions. Word has length 2365 [2024-11-28 02:10:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:10:48,810 INFO L471 AbstractCegarLoop]: Abstraction has 8417 states and 13680 transitions. [2024-11-28 02:10:48,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 60.90909090909091) internal successors, (670), 11 states have internal predecessors, (670), 6 states have call successors, (489), 2 states have call predecessors, (489), 3 states have return successors, (489), 6 states have call predecessors, (489), 6 states have call successors, (489) [2024-11-28 02:10:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 8417 states and 13680 transitions. [2024-11-28 02:10:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2366 [2024-11-28 02:10:48,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:10:48,889 INFO L218 NwaCegarLoop]: trace histogram [356, 356, 356, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:10:48,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:10:49,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:10:49,090 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:10:49,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:10:49,096 INFO L85 PathProgramCache]: Analyzing trace with hash -554180382, now seen corresponding path program 1 times [2024-11-28 02:10:49,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:10:49,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407789110] [2024-11-28 02:10:49,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:10:49,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:10:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 1242 proven. 4023 refuted. 0 times theorem prover too weak. 247495 trivial. 0 not checked. [2024-11-28 02:11:00,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407789110] [2024-11-28 02:11:00,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407789110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:00,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044140161] [2024-11-28 02:11:00,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:00,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:00,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:00,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:11:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:01,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 4564 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 02:11:01,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 47256 proven. 2616 refuted. 0 times theorem prover too weak. 202888 trivial. 0 not checked. [2024-11-28 02:11:07,962 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:11:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 1176 proven. 3048 refuted. 0 times theorem prover too weak. 248536 trivial. 0 not checked. [2024-11-28 02:11:13,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044140161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:11:13,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:11:13,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 27 [2024-11-28 02:11:13,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638331570] [2024-11-28 02:11:13,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:11:13,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 02:11:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:11:13,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 02:11:13,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-11-28 02:11:13,181 INFO L87 Difference]: Start difference. First operand 8417 states and 13680 transitions. Second operand has 27 states, 22 states have (on average 56.68181818181818) internal successors, (1247), 23 states have internal predecessors, (1247), 18 states have call successors, (657), 2 states have call predecessors, (657), 3 states have return successors, (659), 17 states have call predecessors, (659), 18 states have call successors, (659) [2024-11-28 02:11:22,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:11:22,768 INFO L93 Difference]: Finished difference Result 24196 states and 39331 transitions. [2024-11-28 02:11:22,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 02:11:22,771 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 22 states have (on average 56.68181818181818) internal successors, (1247), 23 states have internal predecessors, (1247), 18 states have call successors, (657), 2 states have call predecessors, (657), 3 states have return successors, (659), 17 states have call predecessors, (659), 18 states have call successors, (659) Word has length 2365 [2024-11-28 02:11:22,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:11:22,843 INFO L225 Difference]: With dead ends: 24196 [2024-11-28 02:11:22,843 INFO L226 Difference]: Without dead ends: 14976 [2024-11-28 02:11:22,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4780 GetRequests, 4727 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=786, Invalid=1764, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 02:11:22,872 INFO L435 NwaCegarLoop]: 3239 mSDtfsCounter, 20507 mSDsluCounter, 32168 mSDsCounter, 0 mSdLazyCounter, 7267 mSolverCounterSat, 1272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20649 SdHoareTripleChecker+Valid, 35407 SdHoareTripleChecker+Invalid, 8539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1272 IncrementalHoareTripleChecker+Valid, 7267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:11:22,873 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20649 Valid, 35407 Invalid, 8539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1272 Valid, 7267 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-28 02:11:22,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14976 states. [2024-11-28 02:11:24,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14976 to 9254. [2024-11-28 02:11:24,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9254 states, 7961 states have (on average 1.563497048109534) internal successors, (12447), 7961 states have internal predecessors, (12447), 1291 states have call successors, (1291), 1 states have call predecessors, (1291), 1 states have return successors, (1291), 1291 states have call predecessors, (1291), 1291 states have call successors, (1291) [2024-11-28 02:11:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9254 states to 9254 states and 15029 transitions. [2024-11-28 02:11:24,919 INFO L78 Accepts]: Start accepts. Automaton has 9254 states and 15029 transitions. Word has length 2365 [2024-11-28 02:11:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:11:24,922 INFO L471 AbstractCegarLoop]: Abstraction has 9254 states and 15029 transitions. [2024-11-28 02:11:24,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 22 states have (on average 56.68181818181818) internal successors, (1247), 23 states have internal predecessors, (1247), 18 states have call successors, (657), 2 states have call predecessors, (657), 3 states have return successors, (659), 17 states have call predecessors, (659), 18 states have call successors, (659) [2024-11-28 02:11:24,924 INFO L276 IsEmpty]: Start isEmpty. Operand 9254 states and 15029 transitions. [2024-11-28 02:11:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2366 [2024-11-28 02:11:25,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:11:25,005 INFO L218 NwaCegarLoop]: trace histogram [356, 356, 356, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:11:25,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:11:25,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:25,206 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:11:25,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:11:25,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1452477506, now seen corresponding path program 1 times [2024-11-28 02:11:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:11:25,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582476503] [2024-11-28 02:11:25,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:25,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:11:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:43,846 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 2466 proven. 6903 refuted. 0 times theorem prover too weak. 243391 trivial. 0 not checked. [2024-11-28 02:11:43,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:11:43,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582476503] [2024-11-28 02:11:43,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582476503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:11:43,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106915622] [2024-11-28 02:11:43,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:11:43,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:11:43,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:11:43,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:11:43,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acfc7fbb-78f7-4034-a584-1586119a0799/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:11:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:11:44,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 4564 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 02:11:44,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:11:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 11248 proven. 4698 refuted. 0 times theorem prover too weak. 236814 trivial. 0 not checked. [2024-11-28 02:11:54,326 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:12:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 252760 backedges. 1476 proven. 4824 refuted. 0 times theorem prover too weak. 246460 trivial. 0 not checked. [2024-11-28 02:12:07,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106915622] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:12:07,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:12:07,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 14, 14] total 34 [2024-11-28 02:12:07,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360635780] [2024-11-28 02:12:07,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:12:07,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-28 02:12:07,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:12:07,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-28 02:12:07,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=939, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:12:07,208 INFO L87 Difference]: Start difference. First operand 9254 states and 15029 transitions. Second operand has 34 states, 24 states have (on average 61.375) internal successors, (1473), 25 states have internal predecessors, (1473), 31 states have call successors, (895), 2 states have call predecessors, (895), 3 states have return successors, (897), 30 states have call predecessors, (897), 31 states have call successors, (897) [2024-11-28 02:12:43,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:12:43,399 INFO L93 Difference]: Finished difference Result 153493 states and 249428 transitions. [2024-11-28 02:12:43,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 02:12:43,400 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 24 states have (on average 61.375) internal successors, (1473), 25 states have internal predecessors, (1473), 31 states have call successors, (895), 2 states have call predecessors, (895), 3 states have return successors, (897), 30 states have call predecessors, (897), 31 states have call successors, (897) Word has length 2365 [2024-11-28 02:12:43,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:12:44,156 INFO L225 Difference]: With dead ends: 153493 [2024-11-28 02:12:44,157 INFO L226 Difference]: Without dead ends: 145679 [2024-11-28 02:12:44,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4842 GetRequests, 4732 SyntacticMatches, 4 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2902 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=3350, Invalid=8206, Unknown=0, NotChecked=0, Total=11556 [2024-11-28 02:12:44,204 INFO L435 NwaCegarLoop]: 6896 mSDtfsCounter, 53686 mSDsluCounter, 59418 mSDsCounter, 0 mSdLazyCounter, 12849 mSolverCounterSat, 3942 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53690 SdHoareTripleChecker+Valid, 66314 SdHoareTripleChecker+Invalid, 16791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3942 IncrementalHoareTripleChecker+Valid, 12849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:12:44,205 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53690 Valid, 66314 Invalid, 16791 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3942 Valid, 12849 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2024-11-28 02:12:44,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145679 states. [2024-11-28 02:12:57,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145679 to 72048. [2024-11-28 02:12:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72048 states, 63114 states have (on average 1.5694616091516937) internal successors, (99055), 63114 states have internal predecessors, (99055), 8932 states have call successors, (8932), 1 states have call predecessors, (8932), 1 states have return successors, (8932), 8932 states have call predecessors, (8932), 8932 states have call successors, (8932) [2024-11-28 02:12:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72048 states to 72048 states and 116919 transitions. [2024-11-28 02:12:57,947 INFO L78 Accepts]: Start accepts. Automaton has 72048 states and 116919 transitions. Word has length 2365 [2024-11-28 02:12:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:12:57,953 INFO L471 AbstractCegarLoop]: Abstraction has 72048 states and 116919 transitions. [2024-11-28 02:12:57,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 24 states have (on average 61.375) internal successors, (1473), 25 states have internal predecessors, (1473), 31 states have call successors, (895), 2 states have call predecessors, (895), 3 states have return successors, (897), 30 states have call predecessors, (897), 31 states have call successors, (897) [2024-11-28 02:12:57,954 INFO L276 IsEmpty]: Start isEmpty. Operand 72048 states and 116919 transitions.