./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.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_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/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_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/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_108a68f1-3271-473c-b2dc-4aab93c5f780/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 a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:24:06,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:24:06,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:24:06,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:24:06,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:24:06,237 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:24:06,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:24:06,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:24:06,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:24:06,239 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:24:06,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:24:06,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:24:06,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:24:06,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:24:06,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:24:06,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:24:06,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:24:06,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:24:06,241 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:24:06,242 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:24:06,242 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:24:06,242 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:24:06,242 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:24:06,242 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:06,242 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:06,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:06,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:06,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:24:06,243 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:24:06,243 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:24:06,243 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:24:06,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:06,244 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:24:06,244 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:24:06,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:24:06,245 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:24:06,245 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_108a68f1-3271-473c-b2dc-4aab93c5f780/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 -> a3777e2ab1819fd82e3658352e2b99c7da6626d046ae65288a9623558224827f [2024-11-28 03:24:06,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:24:06,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:24:06,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:24:06,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:24:06,632 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:24:06,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2024-11-28 03:24:09,684 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/data/66d28cfa7/e0f1ba8c60d8478485185c7d7b028a88/FLAG95bc76ec1 [2024-11-28 03:24:10,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:24:10,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c [2024-11-28 03:24:10,102 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/data/66d28cfa7/e0f1ba8c60d8478485185c7d7b028a88/FLAG95bc76ec1 [2024-11-28 03:24:10,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/data/66d28cfa7/e0f1ba8c60d8478485185c7d7b028a88 [2024-11-28 03:24:10,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:24:10,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:24:10,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:24:10,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:24:10,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:24:10,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@195ec0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10, skipping insertion in model container [2024-11-28 03:24:10,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,192 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:24:10,484 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_108a68f1-3271-473c-b2dc-4aab93c5f780/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2024-11-28 03:24:10,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:24:10,512 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:24:10,588 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_108a68f1-3271-473c-b2dc-4aab93c5f780/sv-benchmarks/c/bitvector/s3_srvr_1a.BV.c.cil.c[44949,44962] [2024-11-28 03:24:10,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:24:10,604 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:24:10,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10 WrapperNode [2024-11-28 03:24:10,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:24:10,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:24:10,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:24:10,607 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:24:10,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,669 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 643 [2024-11-28 03:24:10,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:24:10,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:24:10,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:24:10,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:24:10,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,710 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:24:10,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,711 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,717 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,719 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,730 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:24:10,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:24:10,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:24:10,738 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:24:10,739 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (1/1) ... [2024-11-28 03:24:10,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:24:10,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:10,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:24:10,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:24:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:24:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:24:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:24:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:24:10,901 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:24:10,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:24:10,926 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 03:24:11,636 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##103: assume !false; [2024-11-28 03:24:11,637 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##102: assume false; [2024-11-28 03:24:11,723 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-28 03:24:11,723 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:24:11,736 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:24:11,736 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:24:11,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:11 BoogieIcfgContainer [2024-11-28 03:24:11,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:24:11,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:24:11,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:24:11,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:24:11,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:24:10" (1/3) ... [2024-11-28 03:24:11,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9f1a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:24:11, skipping insertion in model container [2024-11-28 03:24:11,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:24:10" (2/3) ... [2024-11-28 03:24:11,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9f1a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:24:11, skipping insertion in model container [2024-11-28 03:24:11,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:11" (3/3) ... [2024-11-28 03:24:11,747 INFO L128 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.BV.c.cil.c [2024-11-28 03:24:11,763 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:24:11,764 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG s3_srvr_1a.BV.c.cil.c that has 1 procedures, 169 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:24:11,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:24:11,846 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;@1205e259, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:24:11,846 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:24:11,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 169 states, 167 states have (on average 1.7245508982035929) internal successors, (288), 168 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 03:24:11,863 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:11,864 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] [2024-11-28 03:24:11,865 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:11,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:11,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1024918538, now seen corresponding path program 1 times [2024-11-28 03:24:11,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:11,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733500153] [2024-11-28 03:24:11,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:11,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:24:12,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:12,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733500153] [2024-11-28 03:24:12,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733500153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:12,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:12,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:12,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642627583] [2024-11-28 03:24:12,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:12,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:12,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:12,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:12,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:12,369 INFO L87 Difference]: Start difference. First operand has 169 states, 167 states have (on average 1.7245508982035929) internal successors, (288), 168 states have internal predecessors, (288), 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 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:12,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:12,676 INFO L93 Difference]: Finished difference Result 370 states and 641 transitions. [2024-11-28 03:24:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:12,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2024-11-28 03:24:12,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:12,691 INFO L225 Difference]: With dead ends: 370 [2024-11-28 03:24:12,691 INFO L226 Difference]: Without dead ends: 196 [2024-11-28 03:24:12,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:12,697 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 58 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:12,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 358 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:24:12,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-28 03:24:12,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-28 03:24:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.6512820512820512) internal successors, (322), 195 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:12,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 322 transitions. [2024-11-28 03:24:12,760 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 322 transitions. Word has length 44 [2024-11-28 03:24:12,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:12,760 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 322 transitions. [2024-11-28 03:24:12,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:12,761 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 322 transitions. [2024-11-28 03:24:12,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 03:24:12,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:12,763 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] [2024-11-28 03:24:12,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:24:12,763 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:12,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:12,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1697867680, now seen corresponding path program 1 times [2024-11-28 03:24:12,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:12,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735479984] [2024-11-28 03:24:12,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:12,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:13,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:24:13,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:13,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735479984] [2024-11-28 03:24:13,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735479984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:13,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:13,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:13,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368762241] [2024-11-28 03:24:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:13,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:13,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:13,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:13,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:13,028 INFO L87 Difference]: Start difference. First operand 196 states and 322 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:13,287 INFO L93 Difference]: Finished difference Result 420 states and 702 transitions. [2024-11-28 03:24:13,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:13,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2024-11-28 03:24:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:13,290 INFO L225 Difference]: With dead ends: 420 [2024-11-28 03:24:13,291 INFO L226 Difference]: Without dead ends: 236 [2024-11-28 03:24:13,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:13,296 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 47 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:13,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 287 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-11-28 03:24:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-11-28 03:24:13,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.6936170212765957) internal successors, (398), 235 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 398 transitions. [2024-11-28 03:24:13,323 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 398 transitions. Word has length 45 [2024-11-28 03:24:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:13,323 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 398 transitions. [2024-11-28 03:24:13,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 398 transitions. [2024-11-28 03:24:13,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:24:13,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:13,329 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-28 03:24:13,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:24:13,329 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:13,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:13,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1762425540, now seen corresponding path program 1 times [2024-11-28 03:24:13,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:13,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357189586] [2024-11-28 03:24:13,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:13,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-28 03:24:13,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:13,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357189586] [2024-11-28 03:24:13,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357189586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:13,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:13,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339156234] [2024-11-28 03:24:13,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:13,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:13,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:13,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:13,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:13,532 INFO L87 Difference]: Start difference. First operand 236 states and 398 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:13,713 INFO L93 Difference]: Finished difference Result 475 states and 805 transitions. [2024-11-28 03:24:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 72 [2024-11-28 03:24:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:13,716 INFO L225 Difference]: With dead ends: 475 [2024-11-28 03:24:13,717 INFO L226 Difference]: Without dead ends: 253 [2024-11-28 03:24:13,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:13,721 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 26 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:13,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 373 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:13,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-11-28 03:24:13,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2024-11-28 03:24:13,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 252 states have (on average 1.6666666666666667) internal successors, (420), 252 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:13,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 420 transitions. [2024-11-28 03:24:13,749 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 420 transitions. Word has length 72 [2024-11-28 03:24:13,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:13,750 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 420 transitions. [2024-11-28 03:24:13,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:13,750 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 420 transitions. [2024-11-28 03:24:13,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 03:24:13,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:13,756 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:24:13,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:24:13,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:13,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:13,757 INFO L85 PathProgramCache]: Analyzing trace with hash -532038399, now seen corresponding path program 1 times [2024-11-28 03:24:13,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:13,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047556205] [2024-11-28 03:24:13,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:13,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:24:13,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:13,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047556205] [2024-11-28 03:24:13,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047556205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:13,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:13,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:13,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143191030] [2024-11-28 03:24:13,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:13,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:13,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:13,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:13,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:13,868 INFO L87 Difference]: Start difference. First operand 253 states and 420 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:14,054 INFO L93 Difference]: Finished difference Result 512 states and 855 transitions. [2024-11-28 03:24:14,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:14,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 87 [2024-11-28 03:24:14,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:14,057 INFO L225 Difference]: With dead ends: 512 [2024-11-28 03:24:14,057 INFO L226 Difference]: Without dead ends: 273 [2024-11-28 03:24:14,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:14,062 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 9 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:14,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 387 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:14,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-28 03:24:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-28 03:24:14,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.6360294117647058) internal successors, (445), 272 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 445 transitions. [2024-11-28 03:24:14,088 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 445 transitions. Word has length 87 [2024-11-28 03:24:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:14,088 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 445 transitions. [2024-11-28 03:24:14,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,089 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 445 transitions. [2024-11-28 03:24:14,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:24:14,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:14,093 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-11-28 03:24:14,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:24:14,093 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:14,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:14,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1373931484, now seen corresponding path program 1 times [2024-11-28 03:24:14,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:14,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838738798] [2024-11-28 03:24:14,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:14,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:24:14,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:14,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838738798] [2024-11-28 03:24:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838738798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:14,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728189301] [2024-11-28 03:24:14,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:14,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:14,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:14,270 INFO L87 Difference]: Start difference. First operand 273 states and 445 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:14,526 INFO L93 Difference]: Finished difference Result 582 states and 957 transitions. [2024-11-28 03:24:14,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:14,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 107 [2024-11-28 03:24:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:14,529 INFO L225 Difference]: With dead ends: 582 [2024-11-28 03:24:14,529 INFO L226 Difference]: Without dead ends: 323 [2024-11-28 03:24:14,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:14,534 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 35 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:14,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 375 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:14,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-28 03:24:14,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 313. [2024-11-28 03:24:14,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.4935897435897436) internal successors, (466), 312 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 466 transitions. [2024-11-28 03:24:14,557 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 466 transitions. Word has length 107 [2024-11-28 03:24:14,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:14,557 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 466 transitions. [2024-11-28 03:24:14,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,557 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 466 transitions. [2024-11-28 03:24:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:24:14,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:14,559 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2024-11-28 03:24:14,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:24:14,560 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:14,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:14,562 INFO L85 PathProgramCache]: Analyzing trace with hash 881305310, now seen corresponding path program 1 times [2024-11-28 03:24:14,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:14,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125673905] [2024-11-28 03:24:14,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:14,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:14,672 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:24:14,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:14,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125673905] [2024-11-28 03:24:14,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125673905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:14,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:14,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:14,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854334460] [2024-11-28 03:24:14,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:14,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:14,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:14,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:14,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:14,674 INFO L87 Difference]: Start difference. First operand 313 states and 466 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:14,837 INFO L93 Difference]: Finished difference Result 634 states and 951 transitions. [2024-11-28 03:24:14,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:14,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 107 [2024-11-28 03:24:14,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:14,839 INFO L225 Difference]: With dead ends: 634 [2024-11-28 03:24:14,839 INFO L226 Difference]: Without dead ends: 335 [2024-11-28 03:24:14,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:14,841 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 9 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:14,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 403 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:24:14,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-28 03:24:14,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-11-28 03:24:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 1.4760479041916168) internal successors, (493), 334 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 493 transitions. [2024-11-28 03:24:14,854 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 493 transitions. Word has length 107 [2024-11-28 03:24:14,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:14,854 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 493 transitions. [2024-11-28 03:24:14,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:14,855 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 493 transitions. [2024-11-28 03:24:14,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:24:14,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:14,856 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:14,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:24:14,857 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:14,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:14,857 INFO L85 PathProgramCache]: Analyzing trace with hash 140125715, now seen corresponding path program 1 times [2024-11-28 03:24:14,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:14,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460730004] [2024-11-28 03:24:14,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:14,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 03:24:14,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:14,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460730004] [2024-11-28 03:24:14,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460730004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:14,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:14,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:14,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291994356] [2024-11-28 03:24:14,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:14,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:14,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:14,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:14,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:14,970 INFO L87 Difference]: Start difference. First operand 335 states and 493 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) [2024-11-28 03:24:15,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:15,027 INFO L93 Difference]: Finished difference Result 971 states and 1429 transitions. [2024-11-28 03:24:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:15,028 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 118 [2024-11-28 03:24:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:15,031 INFO L225 Difference]: With dead ends: 971 [2024-11-28 03:24:15,031 INFO L226 Difference]: Without dead ends: 650 [2024-11-28 03:24:15,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,032 INFO L435 NwaCegarLoop]: 438 mSDtfsCounter, 171 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:15,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 669 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:15,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-28 03:24:15,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2024-11-28 03:24:15,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 649 states have (on average 1.4668721109399077) internal successors, (952), 649 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 952 transitions. [2024-11-28 03:24:15,068 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 952 transitions. Word has length 118 [2024-11-28 03:24:15,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:15,068 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 952 transitions. [2024-11-28 03:24:15,069 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) [2024-11-28 03:24:15,069 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 952 transitions. [2024-11-28 03:24:15,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:24:15,071 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:15,078 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:15,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:24:15,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:15,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash 388272209, now seen corresponding path program 1 times [2024-11-28 03:24:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959999485] [2024-11-28 03:24:15,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:15,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 03:24:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959999485] [2024-11-28 03:24:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959999485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:15,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:15,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:15,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770595419] [2024-11-28 03:24:15,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:15,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:15,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:15,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:15,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,172 INFO L87 Difference]: Start difference. First operand 650 states and 952 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:15,234 INFO L93 Difference]: Finished difference Result 1562 states and 2299 transitions. [2024-11-28 03:24:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:15,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 118 [2024-11-28 03:24:15,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:15,241 INFO L225 Difference]: With dead ends: 1562 [2024-11-28 03:24:15,241 INFO L226 Difference]: Without dead ends: 926 [2024-11-28 03:24:15,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,243 INFO L435 NwaCegarLoop]: 278 mSDtfsCounter, 173 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:15,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 509 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:15,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2024-11-28 03:24:15,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 926. [2024-11-28 03:24:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 925 states have (on average 1.4735135135135136) internal successors, (1363), 925 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1363 transitions. [2024-11-28 03:24:15,288 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1363 transitions. Word has length 118 [2024-11-28 03:24:15,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:15,289 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1363 transitions. [2024-11-28 03:24:15,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,289 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1363 transitions. [2024-11-28 03:24:15,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:24:15,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:15,295 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:15,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:24:15,295 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:15,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1955030159, now seen corresponding path program 1 times [2024-11-28 03:24:15,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:15,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226900596] [2024-11-28 03:24:15,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:15,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-28 03:24:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:15,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226900596] [2024-11-28 03:24:15,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226900596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:15,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:15,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:15,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269748349] [2024-11-28 03:24:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:15,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:15,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:15,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,381 INFO L87 Difference]: Start difference. First operand 926 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:15,424 INFO L93 Difference]: Finished difference Result 1861 states and 2733 transitions. [2024-11-28 03:24:15,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:15,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 118 [2024-11-28 03:24:15,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:15,429 INFO L225 Difference]: With dead ends: 1861 [2024-11-28 03:24:15,429 INFO L226 Difference]: Without dead ends: 949 [2024-11-28 03:24:15,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,432 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 10 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:15,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 483 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2024-11-28 03:24:15,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 949. [2024-11-28 03:24:15,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 949 states, 948 states have (on average 1.4672995780590716) internal successors, (1391), 948 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1391 transitions. [2024-11-28 03:24:15,464 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1391 transitions. Word has length 118 [2024-11-28 03:24:15,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:15,465 INFO L471 AbstractCegarLoop]: Abstraction has 949 states and 1391 transitions. [2024-11-28 03:24:15,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,465 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1391 transitions. [2024-11-28 03:24:15,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 03:24:15,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:15,468 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:15,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:24:15,469 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:15,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash -442440371, now seen corresponding path program 1 times [2024-11-28 03:24:15,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:15,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424030115] [2024-11-28 03:24:15,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:15,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:24:15,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:15,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424030115] [2024-11-28 03:24:15,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424030115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:15,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:15,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:15,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269485038] [2024-11-28 03:24:15,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:15,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:15,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:15,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:15,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,530 INFO L87 Difference]: Start difference. First operand 949 states and 1391 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2024-11-28 03:24:15,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:15,572 INFO L93 Difference]: Finished difference Result 1896 states and 2773 transitions. [2024-11-28 03:24:15,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:15,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 118 [2024-11-28 03:24:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:15,577 INFO L225 Difference]: With dead ends: 1896 [2024-11-28 03:24:15,578 INFO L226 Difference]: Without dead ends: 961 [2024-11-28 03:24:15,579 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 [2024-11-28 03:24:15,580 INFO L435 NwaCegarLoop]: 243 mSDtfsCounter, 15 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:15,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 454 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:15,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2024-11-28 03:24:15,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 961. [2024-11-28 03:24:15,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 960 states have (on average 1.4614583333333333) internal successors, (1403), 960 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1403 transitions. [2024-11-28 03:24:15,611 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1403 transitions. Word has length 118 [2024-11-28 03:24:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:15,612 INFO L471 AbstractCegarLoop]: Abstraction has 961 states and 1403 transitions. [2024-11-28 03:24:15,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2024-11-28 03:24:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1403 transitions. [2024-11-28 03:24:15,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-28 03:24:15,615 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:15,616 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:24:15,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:24:15,617 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:15,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:15,617 INFO L85 PathProgramCache]: Analyzing trace with hash 857502818, now seen corresponding path program 1 times [2024-11-28 03:24:15,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:15,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957037184] [2024-11-28 03:24:15,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:15,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:15,779 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-28 03:24:15,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:15,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957037184] [2024-11-28 03:24:15,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957037184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:15,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:15,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:15,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734610843] [2024-11-28 03:24:15,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:15,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:15,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:15,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:15,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,781 INFO L87 Difference]: Start difference. First operand 961 states and 1403 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:15,971 INFO L93 Difference]: Finished difference Result 1920 states and 2805 transitions. [2024-11-28 03:24:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:15,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 195 [2024-11-28 03:24:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:15,976 INFO L225 Difference]: With dead ends: 1920 [2024-11-28 03:24:15,976 INFO L226 Difference]: Without dead ends: 985 [2024-11-28 03:24:15,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:15,977 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 77 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:15,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 301 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:15,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-28 03:24:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 985. [2024-11-28 03:24:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 1.431910569105691) internal successors, (1409), 984 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1409 transitions. [2024-11-28 03:24:16,005 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1409 transitions. Word has length 195 [2024-11-28 03:24:16,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:16,006 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1409 transitions. [2024-11-28 03:24:16,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1409 transitions. [2024-11-28 03:24:16,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-28 03:24:16,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:16,010 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-28 03:24:16,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:24:16,010 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:16,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:16,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1412882070, now seen corresponding path program 1 times [2024-11-28 03:24:16,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:16,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593762536] [2024-11-28 03:24:16,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:16,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-28 03:24:16,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:16,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593762536] [2024-11-28 03:24:16,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593762536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:16,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:16,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:16,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313153428] [2024-11-28 03:24:16,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:16,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:16,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:16,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:16,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:16,130 INFO L87 Difference]: Start difference. First operand 985 states and 1409 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:16,315 INFO L93 Difference]: Finished difference Result 2034 states and 2946 transitions. [2024-11-28 03:24:16,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:16,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 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 225 [2024-11-28 03:24:16,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:16,320 INFO L225 Difference]: With dead ends: 2034 [2024-11-28 03:24:16,320 INFO L226 Difference]: Without dead ends: 1075 [2024-11-28 03:24:16,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:16,321 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 10 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:16,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 400 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-11-28 03:24:16,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1075. [2024-11-28 03:24:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 1074 states have (on average 1.409683426443203) internal successors, (1514), 1074 states have internal predecessors, (1514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1514 transitions. [2024-11-28 03:24:16,353 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1514 transitions. Word has length 225 [2024-11-28 03:24:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:16,353 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1514 transitions. [2024-11-28 03:24:16,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1514 transitions. [2024-11-28 03:24:16,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-28 03:24:16,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:16,358 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-28 03:24:16,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:24:16,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:16,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:16,358 INFO L85 PathProgramCache]: Analyzing trace with hash -639715600, now seen corresponding path program 2 times [2024-11-28 03:24:16,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:16,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227778820] [2024-11-28 03:24:16,359 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:24:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:16,408 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:24:16,408 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:24:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-28 03:24:16,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:16,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227778820] [2024-11-28 03:24:16,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227778820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:16,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:16,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:16,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392887834] [2024-11-28 03:24:16,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:16,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:16,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:16,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:16,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:16,532 INFO L87 Difference]: Start difference. First operand 1075 states and 1514 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:16,757 INFO L93 Difference]: Finished difference Result 2244 states and 3213 transitions. [2024-11-28 03:24:16,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:16,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 253 [2024-11-28 03:24:16,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:16,763 INFO L225 Difference]: With dead ends: 2244 [2024-11-28 03:24:16,764 INFO L226 Difference]: Without dead ends: 1070 [2024-11-28 03:24:16,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:16,766 INFO L435 NwaCegarLoop]: 254 mSDtfsCounter, 19 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:16,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 403 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:16,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2024-11-28 03:24:16,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1070. [2024-11-28 03:24:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1070 states, 1069 states have (on average 1.4041159962581853) internal successors, (1501), 1069 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1501 transitions. [2024-11-28 03:24:16,801 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1501 transitions. Word has length 253 [2024-11-28 03:24:16,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:16,801 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1501 transitions. [2024-11-28 03:24:16,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:16,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1501 transitions. [2024-11-28 03:24:16,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-11-28 03:24:16,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:16,805 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2024-11-28 03:24:16,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:24:16,806 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:16,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:16,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1576093573, now seen corresponding path program 1 times [2024-11-28 03:24:16,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:16,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405147240] [2024-11-28 03:24:16,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:16,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 626 backedges. 409 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-28 03:24:16,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:16,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405147240] [2024-11-28 03:24:16,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405147240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:16,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:16,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:16,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106811773] [2024-11-28 03:24:16,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:16,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:16,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:16,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:16,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:16,959 INFO L87 Difference]: Start difference. First operand 1070 states and 1501 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:17,005 INFO L93 Difference]: Finished difference Result 3046 states and 4303 transitions. [2024-11-28 03:24:17,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:17,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 264 [2024-11-28 03:24:17,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:17,011 INFO L225 Difference]: With dead ends: 3046 [2024-11-28 03:24:17,011 INFO L226 Difference]: Without dead ends: 1358 [2024-11-28 03:24:17,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:17,014 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 157 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:17,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 651 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:17,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-11-28 03:24:17,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1354. [2024-11-28 03:24:17,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1354 states, 1353 states have (on average 1.409460458240946) internal successors, (1907), 1353 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1907 transitions. [2024-11-28 03:24:17,053 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1907 transitions. Word has length 264 [2024-11-28 03:24:17,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:17,053 INFO L471 AbstractCegarLoop]: Abstraction has 1354 states and 1907 transitions. [2024-11-28 03:24:17,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1907 transitions. [2024-11-28 03:24:17,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-28 03:24:17,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:17,058 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2024-11-28 03:24:17,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:24:17,059 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:17,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:17,059 INFO L85 PathProgramCache]: Analyzing trace with hash -951953522, now seen corresponding path program 1 times [2024-11-28 03:24:17,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:17,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53786869] [2024-11-28 03:24:17,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:17,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-11-28 03:24:17,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:17,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53786869] [2024-11-28 03:24:17,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53786869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:17,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:17,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:17,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878259887] [2024-11-28 03:24:17,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:17,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:17,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:17,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:17,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:17,188 INFO L87 Difference]: Start difference. First operand 1354 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:17,384 INFO L93 Difference]: Finished difference Result 2778 states and 3944 transitions. [2024-11-28 03:24:17,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:17,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 284 [2024-11-28 03:24:17,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:17,392 INFO L225 Difference]: With dead ends: 2778 [2024-11-28 03:24:17,392 INFO L226 Difference]: Without dead ends: 1450 [2024-11-28 03:24:17,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:17,395 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 9 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:17,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 397 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:17,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-11-28 03:24:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2024-11-28 03:24:17,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1450 states, 1449 states have (on average 1.396135265700483) internal successors, (2023), 1449 states have internal predecessors, (2023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2023 transitions. [2024-11-28 03:24:17,443 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2023 transitions. Word has length 284 [2024-11-28 03:24:17,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:17,443 INFO L471 AbstractCegarLoop]: Abstraction has 1450 states and 2023 transitions. [2024-11-28 03:24:17,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2023 transitions. [2024-11-28 03:24:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-28 03:24:17,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:17,450 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2024-11-28 03:24:17,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:24:17,450 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:17,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:17,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1014750019, now seen corresponding path program 1 times [2024-11-28 03:24:17,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:17,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169414642] [2024-11-28 03:24:17,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:17,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:17,586 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 366 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-11-28 03:24:17,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:17,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169414642] [2024-11-28 03:24:17,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169414642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:17,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:17,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:17,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530933260] [2024-11-28 03:24:17,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:17,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:17,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:17,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:17,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:17,589 INFO L87 Difference]: Start difference. First operand 1450 states and 2023 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:17,623 INFO L93 Difference]: Finished difference Result 2878 states and 4020 transitions. [2024-11-28 03:24:17,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:17,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 310 [2024-11-28 03:24:17,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:17,629 INFO L225 Difference]: With dead ends: 2878 [2024-11-28 03:24:17,630 INFO L226 Difference]: Without dead ends: 1454 [2024-11-28 03:24:17,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:17,632 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 476 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 [2024-11-28 03:24:17,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 476 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:24:17,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2024-11-28 03:24:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2024-11-28 03:24:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1453 states have (on average 1.3950447350309705) internal successors, (2027), 1453 states have internal predecessors, (2027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2027 transitions. [2024-11-28 03:24:17,676 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2027 transitions. Word has length 310 [2024-11-28 03:24:17,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:17,677 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 2027 transitions. [2024-11-28 03:24:17,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:17,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2027 transitions. [2024-11-28 03:24:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-28 03:24:17,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:17,682 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2024-11-28 03:24:17,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:24:17,682 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:17,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:17,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2091424703, now seen corresponding path program 1 times [2024-11-28 03:24:17,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:17,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553398728] [2024-11-28 03:24:17,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:17,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 471 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2024-11-28 03:24:17,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553398728] [2024-11-28 03:24:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553398728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:17,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:17,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:17,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220473998] [2024-11-28 03:24:17,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:17,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:17,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:17,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:17,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:17,860 INFO L87 Difference]: Start difference. First operand 1454 states and 2027 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:18,059 INFO L93 Difference]: Finished difference Result 2986 states and 4200 transitions. [2024-11-28 03:24:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:18,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 310 [2024-11-28 03:24:18,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:18,066 INFO L225 Difference]: With dead ends: 2986 [2024-11-28 03:24:18,066 INFO L226 Difference]: Without dead ends: 1558 [2024-11-28 03:24:18,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:18,069 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 9 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:18,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 397 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2024-11-28 03:24:18,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2024-11-28 03:24:18,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1557 states have (on average 1.3815028901734103) internal successors, (2151), 1557 states have internal predecessors, (2151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2151 transitions. [2024-11-28 03:24:18,126 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2151 transitions. Word has length 310 [2024-11-28 03:24:18,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:18,126 INFO L471 AbstractCegarLoop]: Abstraction has 1558 states and 2151 transitions. [2024-11-28 03:24:18,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2151 transitions. [2024-11-28 03:24:18,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-11-28 03:24:18,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:18,133 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2024-11-28 03:24:18,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:24:18,133 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:18,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:18,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1249330789, now seen corresponding path program 1 times [2024-11-28 03:24:18,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:18,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850755993] [2024-11-28 03:24:18,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:18,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2024-11-28 03:24:18,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:18,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850755993] [2024-11-28 03:24:18,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850755993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:18,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:18,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:18,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752361183] [2024-11-28 03:24:18,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:18,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:18,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:18,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:18,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:18,337 INFO L87 Difference]: Start difference. First operand 1558 states and 2151 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:18,532 INFO L93 Difference]: Finished difference Result 3202 states and 4464 transitions. [2024-11-28 03:24:18,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:18,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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 332 [2024-11-28 03:24:18,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:18,539 INFO L225 Difference]: With dead ends: 3202 [2024-11-28 03:24:18,540 INFO L226 Difference]: Without dead ends: 1670 [2024-11-28 03:24:18,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:18,543 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 9 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:18,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 397 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:18,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-28 03:24:18,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2024-11-28 03:24:18,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1669 states have (on average 1.3678849610545236) internal successors, (2283), 1669 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2283 transitions. [2024-11-28 03:24:18,593 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2283 transitions. Word has length 332 [2024-11-28 03:24:18,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:18,593 INFO L471 AbstractCegarLoop]: Abstraction has 1670 states and 2283 transitions. [2024-11-28 03:24:18,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:18,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2283 transitions. [2024-11-28 03:24:18,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2024-11-28 03:24:18,600 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:18,601 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2024-11-28 03:24:18,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:24:18,601 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:18,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:18,602 INFO L85 PathProgramCache]: Analyzing trace with hash 131118593, now seen corresponding path program 1 times [2024-11-28 03:24:18,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:18,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279440291] [2024-11-28 03:24:18,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:18,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 861 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-28 03:24:18,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279440291] [2024-11-28 03:24:18,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279440291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:18,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299905550] [2024-11-28 03:24:18,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:18,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:18,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:18,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:24:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:19,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:24:19,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 861 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-28 03:24:19,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:24:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1331 backedges. 861 proven. 25 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-28 03:24:19,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299905550] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:24:19,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:24:19,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-28 03:24:19,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195095363] [2024-11-28 03:24:19,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:24:19,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:24:19,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:19,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:24:19,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:24:19,442 INFO L87 Difference]: Start difference. First operand 1670 states and 2283 transitions. Second operand has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:20,066 INFO L93 Difference]: Finished difference Result 4055 states and 5618 transitions. [2024-11-28 03:24:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:24:20,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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 365 [2024-11-28 03:24:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:20,076 INFO L225 Difference]: With dead ends: 4055 [2024-11-28 03:24:20,077 INFO L226 Difference]: Without dead ends: 2302 [2024-11-28 03:24:20,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:24:20,080 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 522 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:20,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1018 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:24:20,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2024-11-28 03:24:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 1691. [2024-11-28 03:24:20,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1690 states have (on average 1.355621301775148) internal successors, (2291), 1690 states have internal predecessors, (2291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:20,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2291 transitions. [2024-11-28 03:24:20,139 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2291 transitions. Word has length 365 [2024-11-28 03:24:20,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:20,140 INFO L471 AbstractCegarLoop]: Abstraction has 1691 states and 2291 transitions. [2024-11-28 03:24:20,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2291 transitions. [2024-11-28 03:24:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-28 03:24:20,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:20,148 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 6, 6, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:20,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:24:20,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:20,349 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:20,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:20,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1415656339, now seen corresponding path program 1 times [2024-11-28 03:24:20,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:20,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127997114] [2024-11-28 03:24:20,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:20,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2234 backedges. 1261 proven. 0 refuted. 0 times theorem prover too weak. 973 trivial. 0 not checked. [2024-11-28 03:24:20,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:20,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127997114] [2024-11-28 03:24:20,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127997114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:20,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:20,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:20,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874779150] [2024-11-28 03:24:20,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:20,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:20,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:20,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:20,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:20,620 INFO L87 Difference]: Start difference. First operand 1691 states and 2291 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:20,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:20,811 INFO L93 Difference]: Finished difference Result 3521 states and 4843 transitions. [2024-11-28 03:24:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:20,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 462 [2024-11-28 03:24:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:20,819 INFO L225 Difference]: With dead ends: 3521 [2024-11-28 03:24:20,819 INFO L226 Difference]: Without dead ends: 1856 [2024-11-28 03:24:20,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:20,823 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 9 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:20,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 389 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:24:20,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2024-11-28 03:24:20,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1856. [2024-11-28 03:24:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 1855 states have (on average 1.337466307277628) internal successors, (2481), 1855 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2481 transitions. [2024-11-28 03:24:20,883 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2481 transitions. Word has length 462 [2024-11-28 03:24:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:20,884 INFO L471 AbstractCegarLoop]: Abstraction has 1856 states and 2481 transitions. [2024-11-28 03:24:20,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2481 transitions. [2024-11-28 03:24:20,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-28 03:24:20,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:20,895 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 10, 8, 8, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:20,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:24:20,896 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:20,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:20,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1038598367, now seen corresponding path program 1 times [2024-11-28 03:24:20,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:20,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640487613] [2024-11-28 03:24:20,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:20,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2968 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1287 trivial. 0 not checked. [2024-11-28 03:24:21,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:21,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640487613] [2024-11-28 03:24:21,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640487613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:24:21,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:24:21,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:24:21,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142282966] [2024-11-28 03:24:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:24:21,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:24:21,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:21,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:24:21,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:21,147 INFO L87 Difference]: Start difference. First operand 1856 states and 2481 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:21,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:21,379 INFO L93 Difference]: Finished difference Result 3861 states and 5243 transitions. [2024-11-28 03:24:21,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:24:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 522 [2024-11-28 03:24:21,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:21,389 INFO L225 Difference]: With dead ends: 3861 [2024-11-28 03:24:21,389 INFO L226 Difference]: Without dead ends: 2031 [2024-11-28 03:24:21,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:24:21,392 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 9 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:21,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 389 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:24:21,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2024-11-28 03:24:21,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2031. [2024-11-28 03:24:21,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 2030 states have (on average 1.3206896551724139) internal successors, (2681), 2030 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:21,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 2681 transitions. [2024-11-28 03:24:21,471 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 2681 transitions. Word has length 522 [2024-11-28 03:24:21,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:21,472 INFO L471 AbstractCegarLoop]: Abstraction has 2031 states and 2681 transitions. [2024-11-28 03:24:21,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 2681 transitions. [2024-11-28 03:24:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2024-11-28 03:24:21,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:24:21,490 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 17, 17, 16, 16, 15, 15, 14, 14, 14, 14, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:21,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:24:21,491 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:24:21,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:24:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash 535935115, now seen corresponding path program 1 times [2024-11-28 03:24:21,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:24:21,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343086996] [2024-11-28 03:24:21,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:24:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3840 backedges. 2223 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-11-28 03:24:21,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:24:21,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343086996] [2024-11-28 03:24:21,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343086996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:24:21,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021815128] [2024-11-28 03:24:21,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:24:21,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:24:21,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:24:21,888 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:24:21,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:24:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:24:22,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:24:22,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:24:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3840 backedges. 2223 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-11-28 03:24:22,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:24:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3840 backedges. 2223 proven. 25 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2024-11-28 03:24:22,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021815128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:24:22,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:24:22,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-28 03:24:22,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582941825] [2024-11-28 03:24:22,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:24:22,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:24:22,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:24:22,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:24:22,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:24:22,422 INFO L87 Difference]: Start difference. First operand 2031 states and 2681 transitions. Second operand has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:24:23,076 INFO L93 Difference]: Finished difference Result 2904 states and 3847 transitions. [2024-11-28 03:24:23,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:24:23,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 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 586 [2024-11-28 03:24:23,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:24:23,081 INFO L225 Difference]: With dead ends: 2904 [2024-11-28 03:24:23,081 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:24:23,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1180 GetRequests, 1171 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:24:23,085 INFO L435 NwaCegarLoop]: 332 mSDtfsCounter, 191 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:24:23,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1457 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:24:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:24:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:24:23,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:23,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:24:23,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 586 [2024-11-28 03:24:23,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:24:23,088 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:24:23,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 41.5) internal successors, (332), 8 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:24:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:24:23,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:24:23,091 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:24:23,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:24:23,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:24:23,295 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:24:23,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:24:23,940 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:24:23,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:24:23 BoogieIcfgContainer [2024-11-28 03:24:23,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:24:23,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:24:23,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:24:23,961 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:24:23,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:24:11" (3/4) ... [2024-11-28 03:24:23,963 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:24:23,985 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 03:24:23,986 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 03:24:23,986 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:24:23,987 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:24:24,141 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:24:24,142 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:24:24,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:24:24,143 INFO L158 Benchmark]: Toolchain (without parser) took 14007.95ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 93.6MB in the beginning and 265.5MB in the end (delta: -171.9MB). Peak memory consumption was 136.9MB. Max. memory is 16.1GB. [2024-11-28 03:24:24,143 INFO L158 Benchmark]: CDTParser took 1.57ms. Allocated memory is still 167.8MB. Free memory was 104.5MB in the beginning and 104.3MB in the end (delta: 215.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:24:24,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.97ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 77.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:24:24,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.55ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:24:24,144 INFO L158 Benchmark]: Boogie Preprocessor took 63.30ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 72.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:24:24,144 INFO L158 Benchmark]: RCFGBuilder took 999.44ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 84.0MB in the end (delta: -11.9MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-28 03:24:24,144 INFO L158 Benchmark]: TraceAbstraction took 12221.08ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 83.4MB in the beginning and 278.0MB in the end (delta: -194.6MB). Peak memory consumption was 123.3MB. Max. memory is 16.1GB. [2024-11-28 03:24:24,145 INFO L158 Benchmark]: Witness Printer took 181.58ms. Allocated memory is still 427.8MB. Free memory was 278.0MB in the beginning and 265.5MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:24:24,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57ms. Allocated memory is still 167.8MB. Free memory was 104.5MB in the beginning and 104.3MB in the end (delta: 215.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.97ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 77.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.55ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 74.7MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.30ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 72.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 999.44ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 84.0MB in the end (delta: -11.9MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12221.08ms. Allocated memory was 117.4MB in the beginning and 427.8MB in the end (delta: 310.4MB). Free memory was 83.4MB in the beginning and 278.0MB in the end (delta: -194.6MB). Peak memory consumption was 123.3MB. Max. memory is 16.1GB. * Witness Printer took 181.58ms. Allocated memory is still 427.8MB. Free memory was 278.0MB in the beginning and 265.5MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 681]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 169 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 22, TraceHistogramMax: 19, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1574 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1574 mSDsluCounter, 10973 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5245 mSDsCounter, 404 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2842 IncrementalHoareTripleChecker+Invalid, 3246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 404 mSolverCounterUnsat, 5728 mSDtfsCounter, 2842 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1980 GetRequests, 1943 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2031occurred in iteration=21, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 22 MinimizatonAttempts, 625 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 5993 NumberOfCodeBlocks, 5993 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 6918 ConstructedInterpolants, 0 QuantifiedInterpolants, 9033 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1483 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 26 InterpolantComputations, 20 PerfectInterpolantSequences, 26804/26954 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((((((((((((8464 == s__state) && (blastFlag == 0)) || ((2 == blastFlag) && (8560 == s__state))) || ((2 == blastFlag) && (s__state == 8512))) || ((((3 == blastFlag) && (s__s3__tmp__next_state___0 <= 8576)) && (8656 <= s__state)) && (s__state <= 8672))) || ((2 == blastFlag) && (0 != s__hit))) || ((2 == blastFlag) && (8544 == s__state))) || ((((2 == blastFlag) && (s__state != 8672)) && (s__s3__tmp__next_state___0 <= 8576)) && (s__state <= 8672))) || (((3 == blastFlag) && (3 == s__s3__tmp__next_state___0)) && (8448 == s__state))) || ((3 == blastFlag) && (0 != s__hit))) || (s__state == 3)) || ((8496 == s__state) && (blastFlag == 1))) || ((s__state == 8528) && (2 == blastFlag))) RESULT: Ultimate proved your program to be correct! [2024-11-28 03:24:24,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_108a68f1-3271-473c-b2dc-4aab93c5f780/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE