./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 bd466f23ab481babcc03c4173983e1af9100c535496f2e2f8c8fc18a8aaf4174 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 22:58:51,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 22:58:51,235 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 22:58:51,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 22:58:51,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 22:58:51,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 22:58:51,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 22:58:51,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 22:58:51,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 22:58:51,287 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 22:58:51,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 22:58:51,291 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 22:58:51,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 22:58:51,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 22:58:51,292 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 22:58:51,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 22:58:51,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 22:58:51,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 22:58:51,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 22:58:51,293 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 22:58:51,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 22:58:51,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 22:58:51,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 22:58:51,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 22:58:51,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 22:58:51,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 22:58:51,298 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 22:58:51,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 22:58:51,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 22:58:51,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 22:58:51,302 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 22:58:51,302 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 22:58:51,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:58:51,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 22:58:51,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 22:58:51,303 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 22:58:51,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 22:58:51,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 22:58:51,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 22:58:51,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 22:58:51,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 22:58:51,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 22:58:51,306 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd466f23ab481babcc03c4173983e1af9100c535496f2e2f8c8fc18a8aaf4174 [2024-11-11 22:58:51,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 22:58:51,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 22:58:51,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 22:58:51,561 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 22:58:51,561 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 22:58:51,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c [2024-11-11 22:58:52,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 22:58:53,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 22:58:53,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c [2024-11-11 22:58:53,167 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e53b21a/d3106816fe1c40bf8de1a6ac7c47c7c6/FLAGcd1ab4197 [2024-11-11 22:58:53,177 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65e53b21a/d3106816fe1c40bf8de1a6ac7c47c7c6 [2024-11-11 22:58:53,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 22:58:53,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 22:58:53,181 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 22:58:53,181 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 22:58:53,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 22:58:53,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d396d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53, skipping insertion in model container [2024-11-11 22:58:53,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 22:58:53,356 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c[911,924] [2024-11-11 22:58:53,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c[8416,8429] [2024-11-11 22:58:53,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:58:53,438 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 22:58:53,446 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c[911,924] [2024-11-11 22:58:53,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pc_sfifo_3.cil+token_ring.04.cil-2.c[8416,8429] [2024-11-11 22:58:53,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 22:58:53,504 INFO L204 MainTranslator]: Completed translation [2024-11-11 22:58:53,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53 WrapperNode [2024-11-11 22:58:53,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 22:58:53,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 22:58:53,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 22:58:53,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 22:58:53,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,550 INFO L138 Inliner]: procedures = 63, calls = 74, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 632 [2024-11-11 22:58:53,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 22:58:53,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 22:58:53,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 22:58:53,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 22:58:53,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,575 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]. [2024-11-11 22:58:53,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 22:58:53,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 22:58:53,594 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 22:58:53,594 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 22:58:53,595 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (1/1) ... [2024-11-11 22:58:53,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 22:58:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 22:58:53,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 22:58:53,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 22:58:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 22:58:53,679 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-11 22:58:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-11 22:58:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-11-11 22:58:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-11-11 22:58:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-11-11 22:58:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-11-11 22:58:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-11-11 22:58:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-11-11 22:58:53,680 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-11-11 22:58:53,680 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-11-11 22:58:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-11-11 22:58:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-11-11 22:58:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-11-11 22:58:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-11-11 22:58:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-11-11 22:58:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-11-11 22:58:53,681 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-11-11 22:58:53,681 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-11-11 22:58:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-11-11 22:58:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-11-11 22:58:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-11-11 22:58:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-11-11 22:58:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 22:58:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-11-11 22:58:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-11-11 22:58:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-11-11 22:58:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-11-11 22:58:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 22:58:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 22:58:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-11-11 22:58:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-11-11 22:58:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-11-11 22:58:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-11-11 22:58:53,760 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 22:58:53,762 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 22:58:54,277 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !(1 == ~q_free~0); [2024-11-11 22:58:54,278 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2024-11-11 22:58:54,373 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-11 22:58:54,373 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 22:58:54,398 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 22:58:54,400 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-11 22:58:54,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:58:54 BoogieIcfgContainer [2024-11-11 22:58:54,401 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 22:58:54,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 22:58:54,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 22:58:54,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 22:58:54,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 10:58:53" (1/3) ... [2024-11-11 22:58:54,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502b2537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:58:54, skipping insertion in model container [2024-11-11 22:58:54,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 10:58:53" (2/3) ... [2024-11-11 22:58:54,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502b2537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 10:58:54, skipping insertion in model container [2024-11-11 22:58:54,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 10:58:54" (3/3) ... [2024-11-11 22:58:54,409 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil+token_ring.04.cil-2.c [2024-11-11 22:58:54,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 22:58:54,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-11 22:58:54,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 22:58:54,484 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;@46680e22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 22:58:54,484 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-11 22:58:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 258 states have (on average 1.5813953488372092) internal successors, (408), 266 states have internal predecessors, (408), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-11 22:58:54,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:58:54,495 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:54,496 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:54,497 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:54,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash -180189613, now seen corresponding path program 1 times [2024-11-11 22:58:54,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:54,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883680641] [2024-11-11 22:58:54,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:54,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:55,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:55,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883680641] [2024-11-11 22:58:55,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883680641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:55,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:55,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-11 22:58:55,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395183648] [2024-11-11 22:58:55,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:55,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 22:58:55,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:55,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 22:58:55,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:58:55,172 INFO L87 Difference]: Start difference. First operand has 312 states, 258 states have (on average 1.5813953488372092) internal successors, (408), 266 states have internal predecessors, (408), 36 states have call successors, (36), 15 states have call predecessors, (36), 15 states have return successors, (36), 34 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:58:56,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:56,371 INFO L93 Difference]: Finished difference Result 789 states and 1220 transitions. [2024-11-11 22:58:56,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 22:58:56,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 65 [2024-11-11 22:58:56,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:56,384 INFO L225 Difference]: With dead ends: 789 [2024-11-11 22:58:56,384 INFO L226 Difference]: Without dead ends: 487 [2024-11-11 22:58:56,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-11 22:58:56,391 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 873 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:56,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1784 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 1251 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:58:56,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-11 22:58:56,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 417. [2024-11-11 22:58:56,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 343 states have (on average 1.4810495626822158) internal successors, (508), 351 states have internal predecessors, (508), 49 states have call successors, (49), 22 states have call predecessors, (49), 23 states have return successors, (56), 46 states have call predecessors, (56), 45 states have call successors, (56) [2024-11-11 22:58:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 613 transitions. [2024-11-11 22:58:56,479 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 613 transitions. Word has length 65 [2024-11-11 22:58:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:56,480 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 613 transitions. [2024-11-11 22:58:56,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-11 22:58:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 613 transitions. [2024-11-11 22:58:56,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-11 22:58:56,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:56,483 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:56,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 22:58:56,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:56,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:56,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2086191573, now seen corresponding path program 1 times [2024-11-11 22:58:56,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:56,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285354561] [2024-11-11 22:58:56,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:56,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 22:58:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 22:58:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 22:58:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:56,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:56,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285354561] [2024-11-11 22:58:56,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285354561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:56,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:56,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:58:56,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79316143] [2024-11-11 22:58:56,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:56,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:58:56,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:56,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:58:56,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:58:56,585 INFO L87 Difference]: Start difference. First operand 417 states and 613 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:58:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:57,347 INFO L93 Difference]: Finished difference Result 859 states and 1241 transitions. [2024-11-11 22:58:57,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 22:58:57,347 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-11 22:58:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:57,351 INFO L225 Difference]: With dead ends: 859 [2024-11-11 22:58:57,351 INFO L226 Difference]: Without dead ends: 646 [2024-11-11 22:58:57,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:58:57,353 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 1153 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:57,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 1061 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:58:57,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-11 22:58:57,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 606. [2024-11-11 22:58:57,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 495 states have (on average 1.4505050505050505) internal successors, (718), 506 states have internal predecessors, (718), 69 states have call successors, (69), 36 states have call predecessors, (69), 40 states have return successors, (82), 66 states have call predecessors, (82), 65 states have call successors, (82) [2024-11-11 22:58:57,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 869 transitions. [2024-11-11 22:58:57,396 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 869 transitions. Word has length 65 [2024-11-11 22:58:57,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:57,396 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 869 transitions. [2024-11-11 22:58:57,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:58:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 869 transitions. [2024-11-11 22:58:57,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:58:57,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:57,398 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:57,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 22:58:57,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:57,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash 631690970, now seen corresponding path program 1 times [2024-11-11 22:58:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:57,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240602771] [2024-11-11 22:58:57,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:58:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 22:58:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:58:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:57,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:57,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240602771] [2024-11-11 22:58:57,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240602771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:57,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:57,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:58:57,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938118421] [2024-11-11 22:58:57,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:57,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:58:57,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:58:57,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:58:57,513 INFO L87 Difference]: Start difference. First operand 606 states and 869 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:58:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:58:58,381 INFO L93 Difference]: Finished difference Result 1044 states and 1486 transitions. [2024-11-11 22:58:58,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:58:58,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-11-11 22:58:58,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:58:58,386 INFO L225 Difference]: With dead ends: 1044 [2024-11-11 22:58:58,386 INFO L226 Difference]: Without dead ends: 642 [2024-11-11 22:58:58,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-11 22:58:58,388 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 511 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-11 22:58:58,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1626 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-11 22:58:58,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-11 22:58:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 616. [2024-11-11 22:58:58,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 503 states have (on average 1.4393638170974155) internal successors, (724), 514 states have internal predecessors, (724), 69 states have call successors, (69), 36 states have call predecessors, (69), 42 states have return successors, (84), 68 states have call predecessors, (84), 65 states have call successors, (84) [2024-11-11 22:58:58,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 877 transitions. [2024-11-11 22:58:58,426 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 877 transitions. Word has length 66 [2024-11-11 22:58:58,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:58:58,426 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 877 transitions. [2024-11-11 22:58:58,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-11 22:58:58,427 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 877 transitions. [2024-11-11 22:58:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-11 22:58:58,428 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:58:58,428 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:58:58,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 22:58:58,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:58:58,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:58:58,429 INFO L85 PathProgramCache]: Analyzing trace with hash -397668328, now seen corresponding path program 1 times [2024-11-11 22:58:58,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:58:58,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823464417] [2024-11-11 22:58:58,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:58:58,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:58:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:58:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:58:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:58:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:58:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:58:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 22:58:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 22:58:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:58:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:58:58,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:58:58,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823464417] [2024-11-11 22:58:58,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823464417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:58:58,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:58:58,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:58:58,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604452757] [2024-11-11 22:58:58,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:58:58,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:58:58,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:58:58,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:58:58,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:58:58,625 INFO L87 Difference]: Start difference. First operand 616 states and 877 transitions. Second operand has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:00,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:00,241 INFO L93 Difference]: Finished difference Result 2081 states and 2992 transitions. [2024-11-11 22:59:00,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-11 22:59:00,242 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 66 [2024-11-11 22:59:00,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:00,245 INFO L225 Difference]: With dead ends: 2081 [2024-11-11 22:59:00,246 INFO L226 Difference]: Without dead ends: 855 [2024-11-11 22:59:00,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=235, Invalid=887, Unknown=0, NotChecked=0, Total=1122 [2024-11-11 22:59:00,249 INFO L435 NwaCegarLoop]: 433 mSDtfsCounter, 1698 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:00,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 1969 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 22:59:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-11 22:59:00,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 765. [2024-11-11 22:59:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 613 states have (on average 1.404567699836868) internal successors, (861), 627 states have internal predecessors, (861), 89 states have call successors, (89), 50 states have call predecessors, (89), 61 states have return successors, (120), 90 states have call predecessors, (120), 85 states have call successors, (120) [2024-11-11 22:59:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1070 transitions. [2024-11-11 22:59:00,283 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1070 transitions. Word has length 66 [2024-11-11 22:59:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:00,283 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1070 transitions. [2024-11-11 22:59:00,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:00,284 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1070 transitions. [2024-11-11 22:59:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-11 22:59:00,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:00,285 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:00,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 22:59:00,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:00,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:00,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1472028725, now seen corresponding path program 1 times [2024-11-11 22:59:00,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:00,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188971566] [2024-11-11 22:59:00,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 22:59:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 22:59:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 22:59:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-11 22:59:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 22:59:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 22:59:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:00,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:00,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188971566] [2024-11-11 22:59:00,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188971566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:00,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:00,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 22:59:00,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478968927] [2024-11-11 22:59:00,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:00,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 22:59:00,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:00,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 22:59:00,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-11 22:59:00,388 INFO L87 Difference]: Start difference. First operand 765 states and 1070 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:01,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:01,115 INFO L93 Difference]: Finished difference Result 1665 states and 2346 transitions. [2024-11-11 22:59:01,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-11 22:59:01,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 67 [2024-11-11 22:59:01,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:01,117 INFO L225 Difference]: With dead ends: 1665 [2024-11-11 22:59:01,117 INFO L226 Difference]: Without dead ends: 190 [2024-11-11 22:59:01,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2024-11-11 22:59:01,121 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 1031 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1069 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:01,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1069 Valid, 1374 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:59:01,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-11 22:59:01,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-11-11 22:59:01,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 163 states have (on average 1.5153374233128833) internal successors, (247), 165 states have internal predecessors, (247), 20 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-11 22:59:01,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 285 transitions. [2024-11-11 22:59:01,129 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 285 transitions. Word has length 67 [2024-11-11 22:59:01,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:01,129 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 285 transitions. [2024-11-11 22:59:01,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-11 22:59:01,129 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 285 transitions. [2024-11-11 22:59:01,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:01,130 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:01,130 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:01,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 22:59:01,130 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:01,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:01,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2135093914, now seen corresponding path program 1 times [2024-11-11 22:59:01,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:01,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551859042] [2024-11-11 22:59:01,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:01,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:01,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:01,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551859042] [2024-11-11 22:59:01,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551859042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:01,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:01,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-11 22:59:01,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208651645] [2024-11-11 22:59:01,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:01,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 22:59:01,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:01,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 22:59:01,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-11 22:59:01,199 INFO L87 Difference]: Start difference. First operand 190 states and 285 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:01,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:01,738 INFO L93 Difference]: Finished difference Result 423 states and 646 transitions. [2024-11-11 22:59:01,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 22:59:01,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:01,740 INFO L225 Difference]: With dead ends: 423 [2024-11-11 22:59:01,740 INFO L226 Difference]: Without dead ends: 244 [2024-11-11 22:59:01,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-11 22:59:01,741 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 449 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:01,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 396 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 22:59:01,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-11 22:59:01,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 190. [2024-11-11 22:59:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 163 states have (on average 1.50920245398773) internal successors, (246), 165 states have internal predecessors, (246), 20 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-11 22:59:01,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 284 transitions. [2024-11-11 22:59:01,751 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 284 transitions. Word has length 91 [2024-11-11 22:59:01,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:01,751 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 284 transitions. [2024-11-11 22:59:01,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:01,752 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 284 transitions. [2024-11-11 22:59:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:01,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:01,752 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:01,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 22:59:01,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:01,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:01,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1919633636, now seen corresponding path program 1 times [2024-11-11 22:59:01,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:01,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252830936] [2024-11-11 22:59:01,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:01,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:01,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:01,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:01,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:01,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252830936] [2024-11-11 22:59:01,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252830936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:01,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:01,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:59:01,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115891552] [2024-11-11 22:59:01,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:01,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:59:01,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:01,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:59:01,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:59:01,857 INFO L87 Difference]: Start difference. First operand 190 states and 284 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:02,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:02,641 INFO L93 Difference]: Finished difference Result 654 states and 1005 transitions. [2024-11-11 22:59:02,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:59:02,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:02,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:02,644 INFO L225 Difference]: With dead ends: 654 [2024-11-11 22:59:02,644 INFO L226 Difference]: Without dead ends: 477 [2024-11-11 22:59:02,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:59:02,645 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 662 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:02,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 671 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-11 22:59:02,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-11 22:59:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 368. [2024-11-11 22:59:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 321 states have (on average 1.5233644859813085) internal successors, (489), 324 states have internal predecessors, (489), 33 states have call successors, (33), 13 states have call predecessors, (33), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2024-11-11 22:59:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 556 transitions. [2024-11-11 22:59:02,663 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 556 transitions. Word has length 91 [2024-11-11 22:59:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:02,663 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 556 transitions. [2024-11-11 22:59:02,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 556 transitions. [2024-11-11 22:59:02,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:02,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:02,664 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:02,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 22:59:02,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:02,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash -135071008, now seen corresponding path program 1 times [2024-11-11 22:59:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:02,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665105894] [2024-11-11 22:59:02,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:02,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:02,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665105894] [2024-11-11 22:59:02,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665105894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:02,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:02,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141230533] [2024-11-11 22:59:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:02,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:02,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:02,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:02,771 INFO L87 Difference]: Start difference. First operand 368 states and 556 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:03,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:03,878 INFO L93 Difference]: Finished difference Result 1067 states and 1637 transitions. [2024-11-11 22:59:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:03,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:03,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:03,883 INFO L225 Difference]: With dead ends: 1067 [2024-11-11 22:59:03,884 INFO L226 Difference]: Without dead ends: 712 [2024-11-11 22:59:03,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:03,885 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 661 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:03,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 1276 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:59:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-11 22:59:03,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 535. [2024-11-11 22:59:03,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 468 states have (on average 1.517094017094017) internal successors, (710), 472 states have internal predecessors, (710), 46 states have call successors, (46), 19 states have call predecessors, (46), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2024-11-11 22:59:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 805 transitions. [2024-11-11 22:59:03,912 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 805 transitions. Word has length 91 [2024-11-11 22:59:03,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:03,912 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 805 transitions. [2024-11-11 22:59:03,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:03,912 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 805 transitions. [2024-11-11 22:59:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:03,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:03,913 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:03,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 22:59:03,913 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:03,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:03,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1599033442, now seen corresponding path program 1 times [2024-11-11 22:59:03,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:03,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705748156] [2024-11-11 22:59:03,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:03,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:03,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:04,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:04,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:04,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:04,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:04,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:04,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:04,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:04,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705748156] [2024-11-11 22:59:04,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705748156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:04,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:04,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:04,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571276768] [2024-11-11 22:59:04,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:04,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:04,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:04,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:04,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:04,082 INFO L87 Difference]: Start difference. First operand 535 states and 805 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:05,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:05,171 INFO L93 Difference]: Finished difference Result 1675 states and 2564 transitions. [2024-11-11 22:59:05,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:05,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:05,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:05,176 INFO L225 Difference]: With dead ends: 1675 [2024-11-11 22:59:05,178 INFO L226 Difference]: Without dead ends: 1153 [2024-11-11 22:59:05,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:05,180 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 659 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:05,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 1274 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:59:05,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2024-11-11 22:59:05,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 870. [2024-11-11 22:59:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 763 states have (on average 1.511140235910878) internal successors, (1153), 769 states have internal predecessors, (1153), 72 states have call successors, (72), 31 states have call predecessors, (72), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2024-11-11 22:59:05,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1308 transitions. [2024-11-11 22:59:05,224 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1308 transitions. Word has length 91 [2024-11-11 22:59:05,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:05,224 INFO L471 AbstractCegarLoop]: Abstraction has 870 states and 1308 transitions. [2024-11-11 22:59:05,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:05,225 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1308 transitions. [2024-11-11 22:59:05,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:05,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:05,226 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:05,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 22:59:05,226 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:05,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1808711008, now seen corresponding path program 1 times [2024-11-11 22:59:05,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716224672] [2024-11-11 22:59:05,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:05,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:05,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:05,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716224672] [2024-11-11 22:59:05,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716224672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:05,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:05,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:05,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359290917] [2024-11-11 22:59:05,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:05,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:05,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:05,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:05,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:05,334 INFO L87 Difference]: Start difference. First operand 870 states and 1308 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:06,504 INFO L93 Difference]: Finished difference Result 2850 states and 4351 transitions. [2024-11-11 22:59:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:06,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:06,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:06,514 INFO L225 Difference]: With dead ends: 2850 [2024-11-11 22:59:06,514 INFO L226 Difference]: Without dead ends: 1993 [2024-11-11 22:59:06,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:06,517 INFO L435 NwaCegarLoop]: 294 mSDtfsCounter, 655 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1488 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:06,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 1274 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1488 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:59:06,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-11-11 22:59:06,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1541. [2024-11-11 22:59:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1354 states have (on average 1.5059084194977843) internal successors, (2039), 1364 states have internal predecessors, (2039), 124 states have call successors, (124), 55 states have call predecessors, (124), 62 states have return successors, (157), 129 states have call predecessors, (157), 122 states have call successors, (157) [2024-11-11 22:59:06,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2320 transitions. [2024-11-11 22:59:06,665 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2320 transitions. Word has length 91 [2024-11-11 22:59:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:06,665 INFO L471 AbstractCegarLoop]: Abstraction has 1541 states and 2320 transitions. [2024-11-11 22:59:06,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:06,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2320 transitions. [2024-11-11 22:59:06,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:06,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:06,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:06,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 22:59:06,668 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:06,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:06,669 INFO L85 PathProgramCache]: Analyzing trace with hash 575213730, now seen corresponding path program 1 times [2024-11-11 22:59:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:06,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984477935] [2024-11-11 22:59:06,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:06,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:06,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984477935] [2024-11-11 22:59:06,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984477935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:06,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:06,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:06,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670247386] [2024-11-11 22:59:06,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:06,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:06,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:06,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:06,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:06,778 INFO L87 Difference]: Start difference. First operand 1541 states and 2320 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:07,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:07,904 INFO L93 Difference]: Finished difference Result 5199 states and 7941 transitions. [2024-11-11 22:59:07,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 22:59:07,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:07,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:07,916 INFO L225 Difference]: With dead ends: 5199 [2024-11-11 22:59:07,916 INFO L226 Difference]: Without dead ends: 3671 [2024-11-11 22:59:07,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-11 22:59:07,919 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 713 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1238 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:07,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 834 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1238 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:07,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2024-11-11 22:59:08,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 2888. [2024-11-11 22:59:08,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2888 states, 2541 states have (on average 1.5021645021645023) internal successors, (3817), 2559 states have internal predecessors, (3817), 228 states have call successors, (228), 103 states have call predecessors, (228), 118 states have return successors, (323), 241 states have call predecessors, (323), 226 states have call successors, (323) [2024-11-11 22:59:08,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2888 states to 2888 states and 4368 transitions. [2024-11-11 22:59:08,062 INFO L78 Accepts]: Start accepts. Automaton has 2888 states and 4368 transitions. Word has length 91 [2024-11-11 22:59:08,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:08,062 INFO L471 AbstractCegarLoop]: Abstraction has 2888 states and 4368 transitions. [2024-11-11 22:59:08,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:08,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2888 states and 4368 transitions. [2024-11-11 22:59:08,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:08,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:08,064 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:08,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 22:59:08,065 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:08,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:08,065 INFO L85 PathProgramCache]: Analyzing trace with hash 652114528, now seen corresponding path program 1 times [2024-11-11 22:59:08,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:08,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991768030] [2024-11-11 22:59:08,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:08,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:08,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:08,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:08,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991768030] [2024-11-11 22:59:08,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991768030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:08,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:08,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:08,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800534676] [2024-11-11 22:59:08,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:08,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:08,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:08,186 INFO L87 Difference]: Start difference. First operand 2888 states and 4368 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:10,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:10,016 INFO L93 Difference]: Finished difference Result 10729 states and 16417 transitions. [2024-11-11 22:59:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:10,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:10,050 INFO L225 Difference]: With dead ends: 10729 [2024-11-11 22:59:10,050 INFO L226 Difference]: Without dead ends: 7854 [2024-11-11 22:59:10,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:10,060 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 787 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:10,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 1260 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:59:10,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7854 states. [2024-11-11 22:59:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 5404. [2024-11-11 22:59:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 4753 states have (on average 1.4948453608247423) internal successors, (7105), 4787 states have internal predecessors, (7105), 420 states have call successors, (420), 199 states have call predecessors, (420), 230 states have return successors, (693), 449 states have call predecessors, (693), 418 states have call successors, (693) [2024-11-11 22:59:10,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 8218 transitions. [2024-11-11 22:59:10,448 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 8218 transitions. Word has length 91 [2024-11-11 22:59:10,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:10,449 INFO L471 AbstractCegarLoop]: Abstraction has 5404 states and 8218 transitions. [2024-11-11 22:59:10,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:10,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 8218 transitions. [2024-11-11 22:59:10,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:10,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:10,453 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:10,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 22:59:10,453 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:10,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:10,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1734394978, now seen corresponding path program 1 times [2024-11-11 22:59:10,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:10,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147910775] [2024-11-11 22:59:10,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:10,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:10,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147910775] [2024-11-11 22:59:10,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147910775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:10,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:10,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:10,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731639324] [2024-11-11 22:59:10,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:10,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:10,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:10,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:10,573 INFO L87 Difference]: Start difference. First operand 5404 states and 8218 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:12,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:12,691 INFO L93 Difference]: Finished difference Result 19935 states and 30629 transitions. [2024-11-11 22:59:12,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:12,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:12,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:12,752 INFO L225 Difference]: With dead ends: 19935 [2024-11-11 22:59:12,752 INFO L226 Difference]: Without dead ends: 14544 [2024-11-11 22:59:12,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:12,769 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 675 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:12,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 1264 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 22:59:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14544 states. [2024-11-11 22:59:13,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14544 to 10577. [2024-11-11 22:59:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10577 states, 9334 states have (on average 1.4976430254981787) internal successors, (13979), 9400 states have internal predecessors, (13979), 788 states have call successors, (788), 391 states have call predecessors, (788), 454 states have return successors, (1579), 849 states have call predecessors, (1579), 786 states have call successors, (1579) [2024-11-11 22:59:13,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10577 states to 10577 states and 16346 transitions. [2024-11-11 22:59:13,440 INFO L78 Accepts]: Start accepts. Automaton has 10577 states and 16346 transitions. Word has length 91 [2024-11-11 22:59:13,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:13,441 INFO L471 AbstractCegarLoop]: Abstraction has 10577 states and 16346 transitions. [2024-11-11 22:59:13,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:13,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10577 states and 16346 transitions. [2024-11-11 22:59:13,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:13,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:13,450 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:13,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 22:59:13,450 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:13,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash 2067946144, now seen corresponding path program 1 times [2024-11-11 22:59:13,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:13,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617235575] [2024-11-11 22:59:13,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:13,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:13,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:13,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617235575] [2024-11-11 22:59:13,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617235575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:13,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:13,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19588147] [2024-11-11 22:59:13,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:13,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:13,590 INFO L87 Difference]: Start difference. First operand 10577 states and 16346 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:16,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:16,469 INFO L93 Difference]: Finished difference Result 38202 states and 59587 transitions. [2024-11-11 22:59:16,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:16,469 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:16,554 INFO L225 Difference]: With dead ends: 38202 [2024-11-11 22:59:16,554 INFO L226 Difference]: Without dead ends: 27638 [2024-11-11 22:59:16,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:16,588 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 708 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:16,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1264 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:59:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27638 states. [2024-11-11 22:59:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27638 to 20890. [2024-11-11 22:59:18,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20890 states, 18495 states have (on average 1.5007839956745066) internal successors, (27757), 18625 states have internal predecessors, (27757), 1492 states have call successors, (1492), 775 states have call predecessors, (1492), 902 states have return successors, (3805), 1617 states have call predecessors, (3805), 1490 states have call successors, (3805) [2024-11-11 22:59:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20890 states to 20890 states and 33054 transitions. [2024-11-11 22:59:18,529 INFO L78 Accepts]: Start accepts. Automaton has 20890 states and 33054 transitions. Word has length 91 [2024-11-11 22:59:18,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:18,529 INFO L471 AbstractCegarLoop]: Abstraction has 20890 states and 33054 transitions. [2024-11-11 22:59:18,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:18,530 INFO L276 IsEmpty]: Start isEmpty. Operand 20890 states and 33054 transitions. [2024-11-11 22:59:18,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:18,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:18,553 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:18,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 22:59:18,553 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:18,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:18,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1273080994, now seen corresponding path program 1 times [2024-11-11 22:59:18,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:18,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138420545] [2024-11-11 22:59:18,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:18,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:18,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:18,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:18,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138420545] [2024-11-11 22:59:18,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138420545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:18,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:18,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:18,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758530728] [2024-11-11 22:59:18,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:18,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:18,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:18,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:18,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:18,666 INFO L87 Difference]: Start difference. First operand 20890 states and 33054 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:23,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:23,009 INFO L93 Difference]: Finished difference Result 73553 states and 117561 transitions. [2024-11-11 22:59:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 22:59:23,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:23,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:23,204 INFO L225 Difference]: With dead ends: 73553 [2024-11-11 22:59:23,205 INFO L226 Difference]: Without dead ends: 52676 [2024-11-11 22:59:23,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-11 22:59:23,266 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 665 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:23,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1264 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 22:59:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52676 states. [2024-11-11 22:59:26,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52676 to 41451. [2024-11-11 22:59:26,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41451 states, 36816 states have (on average 1.5041014776184267) internal successors, (55375), 37074 states have internal predecessors, (55375), 2836 states have call successors, (2836), 1543 states have call predecessors, (2836), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2024-11-11 22:59:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41451 states to 41451 states and 67862 transitions. [2024-11-11 22:59:26,423 INFO L78 Accepts]: Start accepts. Automaton has 41451 states and 67862 transitions. Word has length 91 [2024-11-11 22:59:26,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:26,424 INFO L471 AbstractCegarLoop]: Abstraction has 41451 states and 67862 transitions. [2024-11-11 22:59:26,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:26,424 INFO L276 IsEmpty]: Start isEmpty. Operand 41451 states and 67862 transitions. [2024-11-11 22:59:26,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:26,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:26,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:26,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 22:59:26,452 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:26,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:26,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1805732576, now seen corresponding path program 1 times [2024-11-11 22:59:26,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:26,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977324970] [2024-11-11 22:59:26,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:26,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:26,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:26,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:26,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:26,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:26,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:26,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:26,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:26,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977324970] [2024-11-11 22:59:26,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977324970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:26,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:26,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 22:59:26,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089883604] [2024-11-11 22:59:26,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:26,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 22:59:26,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:26,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 22:59:26,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 22:59:26,577 INFO L87 Difference]: Start difference. First operand 41451 states and 67862 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:30,541 INFO L93 Difference]: Finished difference Result 92688 states and 151197 transitions. [2024-11-11 22:59:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 22:59:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:30,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:30,946 INFO L225 Difference]: With dead ends: 92688 [2024-11-11 22:59:30,946 INFO L226 Difference]: Without dead ends: 51251 [2024-11-11 22:59:31,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-11 22:59:31,034 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 223 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:31,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 863 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 22:59:31,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51251 states. [2024-11-11 22:59:33,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51251 to 42222. [2024-11-11 22:59:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42222 states, 37587 states have (on average 1.4937611408199643) internal successors, (56146), 37845 states have internal predecessors, (56146), 2836 states have call successors, (2836), 1543 states have call predecessors, (2836), 1798 states have return successors, (9651), 3089 states have call predecessors, (9651), 2834 states have call successors, (9651) [2024-11-11 22:59:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42222 states to 42222 states and 68633 transitions. [2024-11-11 22:59:34,052 INFO L78 Accepts]: Start accepts. Automaton has 42222 states and 68633 transitions. Word has length 91 [2024-11-11 22:59:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 22:59:34,054 INFO L471 AbstractCegarLoop]: Abstraction has 42222 states and 68633 transitions. [2024-11-11 22:59:34,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 42222 states and 68633 transitions. [2024-11-11 22:59:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 22:59:34,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 22:59:34,085 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 22:59:34,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 22:59:34,085 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 22:59:34,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 22:59:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash -2055505634, now seen corresponding path program 1 times [2024-11-11 22:59:34,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 22:59:34,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504526912] [2024-11-11 22:59:34,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 22:59:34,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 22:59:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:34,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-11 22:59:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:34,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 22:59:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:34,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 22:59:34,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:34,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 22:59:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:34,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 22:59:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 22:59:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 22:59:34,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 22:59:34,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504526912] [2024-11-11 22:59:34,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504526912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 22:59:34,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 22:59:34,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-11 22:59:34,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264450238] [2024-11-11 22:59:34,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 22:59:34,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 22:59:34,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 22:59:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 22:59:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-11 22:59:34,191 INFO L87 Difference]: Start difference. First operand 42222 states and 68633 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-11 22:59:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 22:59:41,315 INFO L93 Difference]: Finished difference Result 143537 states and 231181 transitions. [2024-11-11 22:59:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 22:59:41,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 91 [2024-11-11 22:59:41,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 22:59:42,092 INFO L225 Difference]: With dead ends: 143537 [2024-11-11 22:59:42,092 INFO L226 Difference]: Without dead ends: 101329 [2024-11-11 22:59:42,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-11 22:59:42,190 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 910 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-11 22:59:42,190 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 958 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-11 22:59:42,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101329 states. [2024-11-11 22:59:48,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101329 to 83010. [2024-11-11 22:59:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83010 states, 73876 states have (on average 1.4884671611890194) internal successors, (109962), 74390 states have internal predecessors, (109962), 5537 states have call successors, (5537), 3085 states have call predecessors, (5537), 3596 states have return successors, (18914), 5790 states have call predecessors, (18914), 5535 states have call successors, (18914) [2024-11-11 22:59:48,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83010 states to 83010 states and 134413 transitions.