./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 01:10:59,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 01:11:00,065 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 01:11:00,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 01:11:00,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 01:11:00,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 01:11:00,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 01:11:00,092 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 01:11:00,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 01:11:00,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 01:11:00,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 01:11:00,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 01:11:00,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 01:11:00,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 01:11:00,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 01:11:00,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 01:11:00,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 01:11:00,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 01:11:00,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 01:11:00,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 01:11:00,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 01:11:00,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 01:11:00,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 01:11:00,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 01:11:00,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 01:11:00,098 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 01:11:00,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 01:11:00,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 01:11:00,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 01:11:00,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:11:00,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 01:11:00,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 01:11:00,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 01:11:00,101 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 01:11:00,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 01:11:00,101 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 01:11:00,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 01:11:00,102 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 01:11:00,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 01:11:00,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77ae88daffb8285870a38f38e30db5571fe2930110ef63da660dc306a4cb95e3 [2024-11-10 01:11:00,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 01:11:00,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 01:11:00,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 01:11:00,399 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 01:11:00,400 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 01:11:00,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-10 01:11:01,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 01:11:02,094 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 01:11:02,095 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-10 01:11:02,111 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abb362a2d/345c699d856d4996bca90a2bb4e2523c/FLAGfa7490e3f [2024-11-10 01:11:02,124 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abb362a2d/345c699d856d4996bca90a2bb4e2523c [2024-11-10 01:11:02,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 01:11:02,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 01:11:02,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 01:11:02,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 01:11:02,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 01:11:02,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:02,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb0004e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02, skipping insertion in model container [2024-11-10 01:11:02,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:02,187 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 01:11:02,402 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/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c[1270,1283] [2024-11-10 01:11:02,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:11:02,669 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 01:11:02,680 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/hardware-verification-array/btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c[1270,1283] [2024-11-10 01:11:02,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 01:11:02,839 INFO L204 MainTranslator]: Completed translation [2024-11-10 01:11:02,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02 WrapperNode [2024-11-10 01:11:02,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 01:11:02,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 01:11:02,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 01:11:02,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 01:11:02,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:02,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,134 INFO L138 Inliner]: procedures = 18, calls = 41, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2364 [2024-11-10 01:11:03,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 01:11:03,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 01:11:03,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 01:11:03,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 01:11:03,146 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,363 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 9, 9]. 45 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 8 writes are split as follows [0, 4, 4]. [2024-11-10 01:11:03,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 01:11:03,603 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 01:11:03,603 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 01:11:03,603 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 01:11:03,604 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (1/1) ... [2024-11-10 01:11:03,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 01:11:03,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:03,638 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) [2024-11-10 01:11:03,641 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 [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 01:11:03,694 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 01:11:03,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 01:11:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 01:11:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 01:11:03,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 01:11:03,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 01:11:03,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 01:11:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 01:11:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 01:11:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 01:11:03,988 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 01:11:03,990 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 01:11:06,047 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L73: call ULTIMATE.dealloc(main_~#state_14~0#1.base, main_~#state_14~0#1.offset);havoc main_~#state_14~0#1.base, main_~#state_14~0#1.offset;call ULTIMATE.dealloc(main_~#state_44~0#1.base, main_~#state_44~0#1.offset);havoc main_~#state_44~0#1.base, main_~#state_44~0#1.offset; [2024-11-10 01:11:06,447 INFO L? ?]: Removed 1277 outVars from TransFormulas that were not future-live. [2024-11-10 01:11:06,448 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 01:11:06,568 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 01:11:06,568 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 01:11:06,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:11:06 BoogieIcfgContainer [2024-11-10 01:11:06,569 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 01:11:06,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 01:11:06,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 01:11:06,578 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 01:11:06,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:11:02" (1/3) ... [2024-11-10 01:11:06,579 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264c5453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:11:06, skipping insertion in model container [2024-11-10 01:11:06,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:11:02" (2/3) ... [2024-11-10 01:11:06,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264c5453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:11:06, skipping insertion in model container [2024-11-10 01:11:06,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 01:11:06" (3/3) ... [2024-11-10 01:11:06,581 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_arbitrated_fifos_n2d8w8.c [2024-11-10 01:11:06,598 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 01:11:06,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 01:11:06,688 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 01:11:06,694 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;@6b12d6ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 01:11:06,695 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 01:11:06,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 755 states, 747 states have (on average 1.4953145917001338) internal successors, (1117), 748 states have internal predecessors, (1117), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-10 01:11:06,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:06,727 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:06,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:06,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:06,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1490944832, now seen corresponding path program 1 times [2024-11-10 01:11:06,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:06,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629590895] [2024-11-10 01:11:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:06,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 01:11:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-10 01:11:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-10 01:11:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-10 01:11:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 01:11:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:07,411 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:07,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:07,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629590895] [2024-11-10 01:11:07,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629590895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:07,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:07,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 01:11:07,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088117974] [2024-11-10 01:11:07,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:07,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 01:11:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:07,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 01:11:07,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 01:11:07,455 INFO L87 Difference]: Start difference. First operand has 755 states, 747 states have (on average 1.4953145917001338) internal successors, (1117), 748 states have internal predecessors, (1117), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:07,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:07,781 INFO L93 Difference]: Finished difference Result 1497 states and 2243 transitions. [2024-11-10 01:11:07,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 01:11:07,785 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 238 [2024-11-10 01:11:07,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:07,803 INFO L225 Difference]: With dead ends: 1497 [2024-11-10 01:11:07,804 INFO L226 Difference]: Without dead ends: 750 [2024-11-10 01:11:07,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 01:11:07,813 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:07,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 936 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-10 01:11:07,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2024-11-10 01:11:07,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 743 states have (on average 1.4858681022880216) internal successors, (1104), 743 states have internal predecessors, (1104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:07,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1114 transitions. [2024-11-10 01:11:07,899 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1114 transitions. Word has length 238 [2024-11-10 01:11:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:07,900 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1114 transitions. [2024-11-10 01:11:07,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1114 transitions. [2024-11-10 01:11:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-10 01:11:07,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:07,906 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:07,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 01:11:07,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:07,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash -515558531, now seen corresponding path program 1 times [2024-11-10 01:11:07,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:07,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457048100] [2024-11-10 01:11:07,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:07,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:08,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-10 01:11:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:08,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 01:11:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:08,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-10 01:11:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:08,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-10 01:11:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:08,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 01:11:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:08,832 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:08,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:08,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457048100] [2024-11-10 01:11:08,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457048100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:08,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:08,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:11:08,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431251468] [2024-11-10 01:11:08,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:08,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:11:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:08,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:11:08,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:11:08,841 INFO L87 Difference]: Start difference. First operand 750 states and 1114 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:09,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:09,169 INFO L93 Difference]: Finished difference Result 1498 states and 2226 transitions. [2024-11-10 01:11:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:11:09,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 240 [2024-11-10 01:11:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:09,174 INFO L225 Difference]: With dead ends: 1498 [2024-11-10 01:11:09,174 INFO L226 Difference]: Without dead ends: 756 [2024-11-10 01:11:09,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:11:09,178 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 6 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:09,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1865 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:09,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2024-11-10 01:11:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 752. [2024-11-10 01:11:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 745 states have (on average 1.4845637583892617) internal successors, (1106), 745 states have internal predecessors, (1106), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1116 transitions. [2024-11-10 01:11:09,206 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1116 transitions. Word has length 240 [2024-11-10 01:11:09,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:09,208 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1116 transitions. [2024-11-10 01:11:09,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1116 transitions. [2024-11-10 01:11:09,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-10 01:11:09,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:09,213 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:09,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 01:11:09,215 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:09,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash -451206853, now seen corresponding path program 1 times [2024-11-10 01:11:09,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:09,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664896136] [2024-11-10 01:11:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:09,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 01:11:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-10 01:11:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-10 01:11:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-10 01:11:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-10 01:11:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:09,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:09,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664896136] [2024-11-10 01:11:09,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664896136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:09,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635215185] [2024-11-10 01:11:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:09,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:09,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:09,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 01:11:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:10,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 01:11:10,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:10,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:10,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635215185] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:10,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-10 01:11:10,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2024-11-10 01:11:10,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016367351] [2024-11-10 01:11:10,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:10,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:11:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:10,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:11:10,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:11:10,455 INFO L87 Difference]: Start difference. First operand 752 states and 1116 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:10,784 INFO L93 Difference]: Finished difference Result 1473 states and 2188 transitions. [2024-11-10 01:11:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:11:10,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 244 [2024-11-10 01:11:10,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:10,787 INFO L225 Difference]: With dead ends: 1473 [2024-11-10 01:11:10,788 INFO L226 Difference]: Without dead ends: 754 [2024-11-10 01:11:10,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 496 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:11:10,790 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 6 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:10,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1860 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:10,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-10 01:11:10,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-11-10 01:11:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 747 states have (on average 1.4832663989290495) internal successors, (1108), 747 states have internal predecessors, (1108), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-10 01:11:10,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1118 transitions. [2024-11-10 01:11:10,808 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1118 transitions. Word has length 244 [2024-11-10 01:11:10,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:10,809 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1118 transitions. [2024-11-10 01:11:10,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1118 transitions. [2024-11-10 01:11:10,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-10 01:11:10,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:10,813 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:10,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 01:11:11,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:11,018 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:11,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:11,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1069040061, now seen corresponding path program 1 times [2024-11-10 01:11:11,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:11,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645373510] [2024-11-10 01:11:11,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:11,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-10 01:11:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 01:11:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 01:11:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 01:11:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-10 01:11:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:11,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645373510] [2024-11-10 01:11:11,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645373510] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:11,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944584836] [2024-11-10 01:11:11,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:11,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:11,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:11,496 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:11,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 01:11:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:12,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 01:11:12,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:12,071 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:12,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944584836] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:12,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:12,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 8] total 12 [2024-11-10 01:11:12,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074407666] [2024-11-10 01:11:12,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:12,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 01:11:12,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:12,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 01:11:12,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-10 01:11:12,990 INFO L87 Difference]: Start difference. First operand 754 states and 1118 transitions. Second operand has 12 states, 12 states have (on average 30.0) internal successors, (360), 12 states have internal predecessors, (360), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-10 01:11:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:14,803 INFO L93 Difference]: Finished difference Result 2119 states and 3148 transitions. [2024-11-10 01:11:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:11:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 30.0) internal successors, (360), 12 states have internal predecessors, (360), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 248 [2024-11-10 01:11:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:14,809 INFO L225 Difference]: With dead ends: 2119 [2024-11-10 01:11:14,810 INFO L226 Difference]: Without dead ends: 1375 [2024-11-10 01:11:14,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:11:14,812 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 6445 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6450 SdHoareTripleChecker+Valid, 3463 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:14,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6450 Valid, 3463 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-10 01:11:14,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1375 states. [2024-11-10 01:11:14,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1375 to 974. [2024-11-10 01:11:14,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 962 states have (on average 1.4802494802494803) internal successors, (1424), 962 states have internal predecessors, (1424), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:14,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1444 transitions. [2024-11-10 01:11:14,845 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1444 transitions. Word has length 248 [2024-11-10 01:11:14,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:14,846 INFO L471 AbstractCegarLoop]: Abstraction has 974 states and 1444 transitions. [2024-11-10 01:11:14,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 30.0) internal successors, (360), 12 states have internal predecessors, (360), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-10 01:11:14,848 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1444 transitions. [2024-11-10 01:11:14,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-10 01:11:14,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:14,852 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:14,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:15,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 01:11:15,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:15,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:15,061 INFO L85 PathProgramCache]: Analyzing trace with hash 764721080, now seen corresponding path program 1 times [2024-11-10 01:11:15,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:15,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958264798] [2024-11-10 01:11:15,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:15,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:15,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-10 01:11:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:15,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-10 01:11:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:15,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-10 01:11:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:15,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-10 01:11:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:15,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 01:11:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:15,604 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-10 01:11:15,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958264798] [2024-11-10 01:11:15,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958264798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723713697] [2024-11-10 01:11:15,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:15,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:15,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:15,607 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:15,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 01:11:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:16,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-10 01:11:16,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:16,095 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:16,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:16,147 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-10 01:11:16,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723713697] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:16,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:16,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 4] total 9 [2024-11-10 01:11:16,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61060059] [2024-11-10 01:11:16,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:16,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:11:16,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:16,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:11:16,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:11:16,150 INFO L87 Difference]: Start difference. First operand 974 states and 1444 transitions. Second operand has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 9 states have internal predecessors, (262), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:16,727 INFO L93 Difference]: Finished difference Result 1978 states and 2936 transitions. [2024-11-10 01:11:16,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:11:16,730 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 9 states have internal predecessors, (262), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 253 [2024-11-10 01:11:16,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:16,734 INFO L225 Difference]: With dead ends: 1978 [2024-11-10 01:11:16,734 INFO L226 Difference]: Without dead ends: 1020 [2024-11-10 01:11:16,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:16,737 INFO L432 NwaCegarLoop]: 942 mSDtfsCounter, 56 mSDsluCounter, 3745 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:16,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4687 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:11:16,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-11-10 01:11:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 1016. [2024-11-10 01:11:16,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1004 states have (on average 1.4741035856573705) internal successors, (1480), 1004 states have internal predecessors, (1480), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1500 transitions. [2024-11-10 01:11:16,765 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1500 transitions. Word has length 253 [2024-11-10 01:11:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:16,766 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1500 transitions. [2024-11-10 01:11:16,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 9 states have internal predecessors, (262), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1500 transitions. [2024-11-10 01:11:16,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-10 01:11:16,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:16,770 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:16,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 01:11:16,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:16,971 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:16,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:16,973 INFO L85 PathProgramCache]: Analyzing trace with hash -148922892, now seen corresponding path program 2 times [2024-11-10 01:11:16,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:16,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121923942] [2024-11-10 01:11:16,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:16,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 01:11:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-10 01:11:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 01:11:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 01:11:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 01:11:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:17,468 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 01:11:17,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:17,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121923942] [2024-11-10 01:11:17,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121923942] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:17,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324532736] [2024-11-10 01:11:17,468 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 01:11:17,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:17,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:17,470 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:17,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 01:11:17,914 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 01:11:17,914 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 01:11:17,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 01:11:17,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:18,365 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 01:11:18,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:11:18,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324532736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:18,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:11:18,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-10 01:11:18,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478832203] [2024-11-10 01:11:18,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:18,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:11:18,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:18,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:11:18,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:11:18,368 INFO L87 Difference]: Start difference. First operand 1016 states and 1500 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:18,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:18,739 INFO L93 Difference]: Finished difference Result 1676 states and 2480 transitions. [2024-11-10 01:11:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:11:18,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 269 [2024-11-10 01:11:18,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:18,745 INFO L225 Difference]: With dead ends: 1676 [2024-11-10 01:11:18,745 INFO L226 Difference]: Without dead ends: 1016 [2024-11-10 01:11:18,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:11:18,748 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 979 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:18,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 1710 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-10 01:11:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2024-11-10 01:11:18,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1004 states have (on average 1.4701195219123506) internal successors, (1476), 1004 states have internal predecessors, (1476), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:18,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1496 transitions. [2024-11-10 01:11:18,808 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1496 transitions. Word has length 269 [2024-11-10 01:11:18,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:18,810 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1496 transitions. [2024-11-10 01:11:18,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:18,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1496 transitions. [2024-11-10 01:11:18,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-10 01:11:18,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:18,818 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:18,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:19,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:19,019 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:19,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash 474316354, now seen corresponding path program 1 times [2024-11-10 01:11:19,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:19,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749883555] [2024-11-10 01:11:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:19,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:19,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 01:11:19,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:19,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-10 01:11:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:19,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 01:11:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:19,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 01:11:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:19,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 01:11:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:19,522 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 01:11:19,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:19,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749883555] [2024-11-10 01:11:19,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749883555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:19,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258779492] [2024-11-10 01:11:19,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:19,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:19,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:19,528 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:19,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 01:11:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:20,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 01:11:20,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:20,300 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-10 01:11:20,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:11:20,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258779492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:20,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:11:20,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2024-11-10 01:11:20,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372531137] [2024-11-10 01:11:20,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:20,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:11:20,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:20,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:11:20,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:20,303 INFO L87 Difference]: Start difference. First operand 1016 states and 1496 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:20,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:20,925 INFO L93 Difference]: Finished difference Result 1670 states and 2466 transitions. [2024-11-10 01:11:20,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:11:20,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 271 [2024-11-10 01:11:20,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:20,932 INFO L225 Difference]: With dead ends: 1670 [2024-11-10 01:11:20,932 INFO L226 Difference]: Without dead ends: 1016 [2024-11-10 01:11:20,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-10 01:11:20,935 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 2034 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:20,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 2557 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-10 01:11:20,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2024-11-10 01:11:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2024-11-10 01:11:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1004 states have (on average 1.4691235059760956) internal successors, (1475), 1004 states have internal predecessors, (1475), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1495 transitions. [2024-11-10 01:11:20,969 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1495 transitions. Word has length 271 [2024-11-10 01:11:20,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:20,971 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1495 transitions. [2024-11-10 01:11:20,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:20,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1495 transitions. [2024-11-10 01:11:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-10 01:11:20,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:20,975 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:20,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 01:11:21,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:21,176 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:21,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:21,177 INFO L85 PathProgramCache]: Analyzing trace with hash -234654471, now seen corresponding path program 1 times [2024-11-10 01:11:21,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:21,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733592041] [2024-11-10 01:11:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:21,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:21,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-10 01:11:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:21,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-10 01:11:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:21,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-10 01:11:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:21,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 01:11:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:21,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 01:11:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:21,745 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 01:11:21,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:21,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733592041] [2024-11-10 01:11:21,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733592041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:21,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284377337] [2024-11-10 01:11:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:21,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:21,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:21,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:21,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 01:11:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:22,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-10 01:11:22,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:22,276 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-10 01:11:22,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:22,439 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 14 proven. 36 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-10 01:11:22,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284377337] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:22,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:22,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 10] total 15 [2024-11-10 01:11:22,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183220364] [2024-11-10 01:11:22,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:22,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-10 01:11:22,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-10 01:11:22,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:11:22,442 INFO L87 Difference]: Start difference. First operand 1016 states and 1495 transitions. Second operand has 15 states, 15 states have (on average 18.2) internal successors, (273), 15 states have internal predecessors, (273), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:23,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:23,339 INFO L93 Difference]: Finished difference Result 2040 states and 3006 transitions. [2024-11-10 01:11:23,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:11:23,340 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.2) internal successors, (273), 15 states have internal predecessors, (273), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 272 [2024-11-10 01:11:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:23,344 INFO L225 Difference]: With dead ends: 2040 [2024-11-10 01:11:23,344 INFO L226 Difference]: Without dead ends: 1046 [2024-11-10 01:11:23,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2024-11-10 01:11:23,347 INFO L432 NwaCegarLoop]: 946 mSDtfsCounter, 84 mSDsluCounter, 8456 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 9402 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:23,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 9402 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:11:23,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-10 01:11:23,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2024-11-10 01:11:23,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1034 states have (on average 1.4651837524177949) internal successors, (1515), 1034 states have internal predecessors, (1515), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:23,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1535 transitions. [2024-11-10 01:11:23,370 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1535 transitions. Word has length 272 [2024-11-10 01:11:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:23,371 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1535 transitions. [2024-11-10 01:11:23,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.2) internal successors, (273), 15 states have internal predecessors, (273), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:23,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1535 transitions. [2024-11-10 01:11:23,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-10 01:11:23,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:23,398 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:23,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:23,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:23,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:23,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:23,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2038879313, now seen corresponding path program 2 times [2024-11-10 01:11:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:23,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033654685] [2024-11-10 01:11:23,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:23,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 01:11:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 01:11:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 01:11:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 01:11:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-10 01:11:24,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033654685] [2024-11-10 01:11:24,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033654685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294057231] [2024-11-10 01:11:24,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 01:11:24,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:24,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:24,125 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:24,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 01:11:24,582 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 01:11:24,582 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 01:11:24,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 01:11:24,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:24,883 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 01:11:24,883 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:11:24,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294057231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:24,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:11:24,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-10 01:11:24,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965192448] [2024-11-10 01:11:24,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:24,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:11:24,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:11:24,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-10 01:11:24,886 INFO L87 Difference]: Start difference. First operand 1046 states and 1535 transitions. Second operand has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:25,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:25,335 INFO L93 Difference]: Finished difference Result 1700 states and 2504 transitions. [2024-11-10 01:11:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:11:25,335 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 292 [2024-11-10 01:11:25,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:25,340 INFO L225 Difference]: With dead ends: 1700 [2024-11-10 01:11:25,340 INFO L226 Difference]: Without dead ends: 1046 [2024-11-10 01:11:25,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:11:25,341 INFO L432 NwaCegarLoop]: 854 mSDtfsCounter, 2031 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:25,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 2548 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:11:25,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2024-11-10 01:11:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1046. [2024-11-10 01:11:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1034 states have (on average 1.4642166344294003) internal successors, (1514), 1034 states have internal predecessors, (1514), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1534 transitions. [2024-11-10 01:11:25,365 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1534 transitions. Word has length 292 [2024-11-10 01:11:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:25,366 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1534 transitions. [2024-11-10 01:11:25,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1534 transitions. [2024-11-10 01:11:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-10 01:11:25,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:25,369 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:25,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:25,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:25,570 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:25,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:25,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1757681964, now seen corresponding path program 1 times [2024-11-10 01:11:25,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:25,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292880256] [2024-11-10 01:11:25,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:25,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 01:11:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-10 01:11:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-10 01:11:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-10 01:11:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-10 01:11:26,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:26,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292880256] [2024-11-10 01:11:26,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292880256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:26,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763164518] [2024-11-10 01:11:26,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:26,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:26,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:26,042 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:26,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 01:11:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:26,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-10 01:11:26,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-10 01:11:26,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 01:11:26,783 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-10 01:11:26,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763164518] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 01:11:26,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 01:11:26,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12, 7] total 18 [2024-11-10 01:11:26,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006597839] [2024-11-10 01:11:26,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 01:11:26,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 01:11:26,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:26,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 01:11:26,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2024-11-10 01:11:26,786 INFO L87 Difference]: Start difference. First operand 1046 states and 1534 transitions. Second operand has 18 states, 18 states have (on average 15.88888888888889) internal successors, (286), 18 states have internal predecessors, (286), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:27,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:27,653 INFO L93 Difference]: Finished difference Result 2018 states and 2975 transitions. [2024-11-10 01:11:27,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 01:11:27,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.88888888888889) internal successors, (286), 18 states have internal predecessors, (286), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 293 [2024-11-10 01:11:27,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:27,663 INFO L225 Difference]: With dead ends: 2018 [2024-11-10 01:11:27,664 INFO L226 Difference]: Without dead ends: 1094 [2024-11-10 01:11:27,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-10 01:11:27,666 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 162 mSDsluCounter, 9606 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 10574 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:27,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 10574 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:11:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2024-11-10 01:11:27,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1094. [2024-11-10 01:11:27,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 1082 states have (on average 1.4584103512014788) internal successors, (1578), 1082 states have internal predecessors, (1578), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:27,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1598 transitions. [2024-11-10 01:11:27,742 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1598 transitions. Word has length 293 [2024-11-10 01:11:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:27,743 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1598 transitions. [2024-11-10 01:11:27,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.88888888888889) internal successors, (286), 18 states have internal predecessors, (286), 1 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-10 01:11:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1598 transitions. [2024-11-10 01:11:27,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-11-10 01:11:27,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:27,749 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:27,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 01:11:27,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 01:11:27,955 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:27,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:27,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1572256820, now seen corresponding path program 2 times [2024-11-10 01:11:27,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:27,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520898493] [2024-11-10 01:11:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 01:11:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 01:11:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 01:11:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-10 01:11:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 01:11:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:28,640 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520898493] [2024-11-10 01:11:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520898493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:28,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:28,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:11:28,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616813557] [2024-11-10 01:11:28,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:28,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:11:28,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:28,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:11:28,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:11:28,643 INFO L87 Difference]: Start difference. First operand 1094 states and 1598 transitions. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:28,922 INFO L93 Difference]: Finished difference Result 1099 states and 1603 transitions. [2024-11-10 01:11:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:11:28,923 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 309 [2024-11-10 01:11:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:28,928 INFO L225 Difference]: With dead ends: 1099 [2024-11-10 01:11:28,928 INFO L226 Difference]: Without dead ends: 1096 [2024-11-10 01:11:28,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:11:28,929 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 0 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:28,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2785 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:28,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-11-10 01:11:28,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2024-11-10 01:11:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 1084 states have (on average 1.4575645756457565) internal successors, (1580), 1084 states have internal predecessors, (1580), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1600 transitions. [2024-11-10 01:11:28,954 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1600 transitions. Word has length 309 [2024-11-10 01:11:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:28,955 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1600 transitions. [2024-11-10 01:11:28,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1600 transitions. [2024-11-10 01:11:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-10 01:11:28,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:28,957 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:28,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 01:11:28,957 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:28,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1350267219, now seen corresponding path program 1 times [2024-11-10 01:11:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:28,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98554736] [2024-11-10 01:11:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:28,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:29,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 01:11:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:29,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 01:11:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:29,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 01:11:29,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:29,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-10 01:11:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:29,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 01:11:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:29,558 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:29,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:29,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98554736] [2024-11-10 01:11:29,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98554736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:29,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:29,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 01:11:29,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293332209] [2024-11-10 01:11:29,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:29,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:11:29,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:29,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:11:29,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:11:29,560 INFO L87 Difference]: Start difference. First operand 1096 states and 1600 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:29,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:29,908 INFO L93 Difference]: Finished difference Result 1754 states and 2573 transitions. [2024-11-10 01:11:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:11:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 310 [2024-11-10 01:11:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:29,913 INFO L225 Difference]: With dead ends: 1754 [2024-11-10 01:11:29,913 INFO L226 Difference]: Without dead ends: 1098 [2024-11-10 01:11:29,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 01:11:29,915 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 0 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:29,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2782 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:29,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-10 01:11:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2024-11-10 01:11:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 1086 states have (on average 1.4567219152854511) internal successors, (1582), 1086 states have internal predecessors, (1582), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:29,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1602 transitions. [2024-11-10 01:11:29,936 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1602 transitions. Word has length 310 [2024-11-10 01:11:29,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:29,937 INFO L471 AbstractCegarLoop]: Abstraction has 1098 states and 1602 transitions. [2024-11-10 01:11:29,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1602 transitions. [2024-11-10 01:11:29,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-10 01:11:29,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:29,940 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:29,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 01:11:29,940 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:29,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash 838633297, now seen corresponding path program 1 times [2024-11-10 01:11:29,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:29,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486005062] [2024-11-10 01:11:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:29,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:31,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 01:11:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:31,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 01:11:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:31,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 01:11:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:31,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-10 01:11:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:31,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 01:11:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:31,361 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:31,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:31,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486005062] [2024-11-10 01:11:31,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486005062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:31,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:31,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 01:11:31,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454402428] [2024-11-10 01:11:31,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:31,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 01:11:31,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:31,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 01:11:31,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:11:31,364 INFO L87 Difference]: Start difference. First operand 1098 states and 1602 transitions. Second operand has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:31,845 INFO L93 Difference]: Finished difference Result 1912 states and 2806 transitions. [2024-11-10 01:11:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 01:11:31,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 311 [2024-11-10 01:11:31,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:31,853 INFO L225 Difference]: With dead ends: 1912 [2024-11-10 01:11:31,853 INFO L226 Difference]: Without dead ends: 1254 [2024-11-10 01:11:31,855 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 01:11:31,855 INFO L432 NwaCegarLoop]: 927 mSDtfsCounter, 150 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:31,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 3700 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 01:11:31,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-11-10 01:11:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1252. [2024-11-10 01:11:31,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1240 states have (on average 1.4596774193548387) internal successors, (1810), 1240 states have internal predecessors, (1810), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1830 transitions. [2024-11-10 01:11:31,884 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1830 transitions. Word has length 311 [2024-11-10 01:11:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:31,885 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1830 transitions. [2024-11-10 01:11:31,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1830 transitions. [2024-11-10 01:11:31,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2024-11-10 01:11:31,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:31,888 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:31,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 01:11:31,888 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:31,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:31,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1362475608, now seen corresponding path program 1 times [2024-11-10 01:11:31,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:31,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115161855] [2024-11-10 01:11:31,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:31,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 01:11:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-10 01:11:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 01:11:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-10 01:11:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-10 01:11:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:32,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:32,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115161855] [2024-11-10 01:11:32,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115161855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:32,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:32,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:11:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96838577] [2024-11-10 01:11:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:32,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:11:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:32,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:11:32,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:11:32,828 INFO L87 Difference]: Start difference. First operand 1252 states and 1830 transitions. Second operand has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:34,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:34,009 INFO L93 Difference]: Finished difference Result 2983 states and 4390 transitions. [2024-11-10 01:11:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:11:34,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 312 [2024-11-10 01:11:34,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:34,015 INFO L225 Difference]: With dead ends: 2983 [2024-11-10 01:11:34,015 INFO L226 Difference]: Without dead ends: 1260 [2024-11-10 01:11:34,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-11-10 01:11:34,018 INFO L432 NwaCegarLoop]: 1422 mSDtfsCounter, 1858 mSDsluCounter, 4953 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 6375 SdHoareTripleChecker+Invalid, 1877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:34,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 6375 Invalid, 1877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-10 01:11:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2024-11-10 01:11:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 1256. [2024-11-10 01:11:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 1244 states have (on average 1.4565916398713827) internal successors, (1812), 1244 states have internal predecessors, (1812), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1832 transitions. [2024-11-10 01:11:34,047 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1832 transitions. Word has length 312 [2024-11-10 01:11:34,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:34,047 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1832 transitions. [2024-11-10 01:11:34,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.142857142857146) internal successors, (232), 7 states have internal predecessors, (232), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:34,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1832 transitions. [2024-11-10 01:11:34,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-10 01:11:34,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:34,050 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:34,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 01:11:34,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:34,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1263494697, now seen corresponding path program 1 times [2024-11-10 01:11:34,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:34,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430049104] [2024-11-10 01:11:34,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:34,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 01:11:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:34,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-10 01:11:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:34,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-10 01:11:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:34,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-10 01:11:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:34,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-10 01:11:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:34,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:34,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430049104] [2024-11-10 01:11:34,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430049104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:34,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:34,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 01:11:34,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661439528] [2024-11-10 01:11:34,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:34,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:11:34,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:34,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:11:34,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:11:34,934 INFO L87 Difference]: Start difference. First operand 1256 states and 1832 transitions. Second operand has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:35,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:35,915 INFO L93 Difference]: Finished difference Result 2625 states and 3854 transitions. [2024-11-10 01:11:35,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:35,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 313 [2024-11-10 01:11:35,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:35,922 INFO L225 Difference]: With dead ends: 2625 [2024-11-10 01:11:35,923 INFO L226 Difference]: Without dead ends: 1811 [2024-11-10 01:11:35,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:11:35,925 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1862 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:35,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 2741 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 01:11:35,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-10 01:11:35,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1257. [2024-11-10 01:11:35,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1245 states have (on average 1.4562248995983935) internal successors, (1813), 1245 states have internal predecessors, (1813), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:35,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1833 transitions. [2024-11-10 01:11:35,956 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1833 transitions. Word has length 313 [2024-11-10 01:11:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:35,957 INFO L471 AbstractCegarLoop]: Abstraction has 1257 states and 1833 transitions. [2024-11-10 01:11:35,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.833333333333336) internal successors, (233), 6 states have internal predecessors, (233), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1833 transitions. [2024-11-10 01:11:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-10 01:11:35,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:35,960 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:35,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 01:11:35,961 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:35,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash 892653974, now seen corresponding path program 1 times [2024-11-10 01:11:35,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:35,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873699379] [2024-11-10 01:11:35,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:35,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:37,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:37,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:37,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-10 01:11:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:37,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-10 01:11:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:37,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-10 01:11:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:37,423 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:37,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:37,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873699379] [2024-11-10 01:11:37,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873699379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:37,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:37,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:11:37,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91735451] [2024-11-10 01:11:37,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:37,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:11:37,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:37,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:11:37,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:11:37,427 INFO L87 Difference]: Start difference. First operand 1257 states and 1833 transitions. Second operand has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:37,927 INFO L93 Difference]: Finished difference Result 2172 states and 3182 transitions. [2024-11-10 01:11:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 01:11:37,928 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 313 [2024-11-10 01:11:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:37,932 INFO L225 Difference]: With dead ends: 2172 [2024-11-10 01:11:37,932 INFO L226 Difference]: Without dead ends: 1273 [2024-11-10 01:11:37,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:11:37,935 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 1026 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:37,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 4508 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:11:37,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-10 01:11:37,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1267. [2024-11-10 01:11:37,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 1255 states have (on average 1.454183266932271) internal successors, (1825), 1255 states have internal predecessors, (1825), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1845 transitions. [2024-11-10 01:11:37,966 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1845 transitions. Word has length 313 [2024-11-10 01:11:37,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:37,966 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1845 transitions. [2024-11-10 01:11:37,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.285714285714285) internal successors, (233), 7 states have internal predecessors, (233), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:37,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1845 transitions. [2024-11-10 01:11:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-11-10 01:11:37,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:37,970 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:37,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 01:11:37,970 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:37,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1652459060, now seen corresponding path program 1 times [2024-11-10 01:11:37,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:37,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925296752] [2024-11-10 01:11:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:37,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:39,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:39,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:39,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-10 01:11:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:39,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-10 01:11:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:39,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-10 01:11:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:39,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:39,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925296752] [2024-11-10 01:11:39,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925296752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:39,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:39,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-10 01:11:39,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982599213] [2024-11-10 01:11:39,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:39,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 01:11:39,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:39,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 01:11:39,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:39,228 INFO L87 Difference]: Start difference. First operand 1267 states and 1845 transitions. Second operand has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:40,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:40,608 INFO L93 Difference]: Finished difference Result 2165 states and 3167 transitions. [2024-11-10 01:11:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 01:11:40,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 314 [2024-11-10 01:11:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:40,613 INFO L225 Difference]: With dead ends: 2165 [2024-11-10 01:11:40,613 INFO L226 Difference]: Without dead ends: 1299 [2024-11-10 01:11:40,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:40,615 INFO L432 NwaCegarLoop]: 689 mSDtfsCounter, 1038 mSDsluCounter, 4721 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 5410 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:40,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 5410 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-10 01:11:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-11-10 01:11:40,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1291. [2024-11-10 01:11:40,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1279 states have (on average 1.4550430023455825) internal successors, (1861), 1279 states have internal predecessors, (1861), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1881 transitions. [2024-11-10 01:11:40,640 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1881 transitions. Word has length 314 [2024-11-10 01:11:40,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:40,640 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1881 transitions. [2024-11-10 01:11:40,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.4) internal successors, (234), 10 states have internal predecessors, (234), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1881 transitions. [2024-11-10 01:11:40,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-10 01:11:40,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:40,643 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:40,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 01:11:40,644 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:40,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1253738808, now seen corresponding path program 1 times [2024-11-10 01:11:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:40,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103377449] [2024-11-10 01:11:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:40,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:41,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:41,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:41,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-10 01:11:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:41,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 01:11:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:41,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-10 01:11:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:41,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:41,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103377449] [2024-11-10 01:11:41,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103377449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:41,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:41,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-10 01:11:41,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33837010] [2024-11-10 01:11:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:41,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 01:11:41,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:41,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 01:11:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 01:11:41,864 INFO L87 Difference]: Start difference. First operand 1291 states and 1881 transitions. Second operand has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:42,439 INFO L93 Difference]: Finished difference Result 2177 states and 3182 transitions. [2024-11-10 01:11:42,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 01:11:42,440 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 315 [2024-11-10 01:11:42,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:42,445 INFO L225 Difference]: With dead ends: 2177 [2024-11-10 01:11:42,445 INFO L226 Difference]: Without dead ends: 1295 [2024-11-10 01:11:42,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:11:42,447 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 1021 mSDsluCounter, 4502 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 5414 SdHoareTripleChecker+Invalid, 1213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:42,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 5414 Invalid, 1213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:11:42,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-10 01:11:42,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1291. [2024-11-10 01:11:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1279 states have (on average 1.4534792806880374) internal successors, (1859), 1279 states have internal predecessors, (1859), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-10 01:11:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1879 transitions. [2024-11-10 01:11:42,471 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1879 transitions. Word has length 315 [2024-11-10 01:11:42,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:42,472 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1879 transitions. [2024-11-10 01:11:42,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.375) internal successors, (235), 8 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:42,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1879 transitions. [2024-11-10 01:11:42,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-10 01:11:42,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:42,475 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:42,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 01:11:42,475 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:42,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:42,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1705620772, now seen corresponding path program 1 times [2024-11-10 01:11:42,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:42,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959487274] [2024-11-10 01:11:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:42,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:43,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:43,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:43,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-10 01:11:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:43,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 01:11:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:43,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-10 01:11:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:43,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:43,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959487274] [2024-11-10 01:11:43,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959487274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:43,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:43,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:11:43,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113051926] [2024-11-10 01:11:43,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:43,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:11:43,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:43,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:11:43,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:11:43,750 INFO L87 Difference]: Start difference. First operand 1291 states and 1879 transitions. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:46,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:46,283 INFO L93 Difference]: Finished difference Result 4023 states and 5904 transitions. [2024-11-10 01:11:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:11:46,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 315 [2024-11-10 01:11:46,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:46,292 INFO L225 Difference]: With dead ends: 4023 [2024-11-10 01:11:46,292 INFO L226 Difference]: Without dead ends: 3169 [2024-11-10 01:11:46,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 01:11:46,294 INFO L432 NwaCegarLoop]: 1719 mSDtfsCounter, 2860 mSDsluCounter, 8756 mSDsCounter, 0 mSdLazyCounter, 5942 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2868 SdHoareTripleChecker+Valid, 10475 SdHoareTripleChecker+Invalid, 5945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:46,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2868 Valid, 10475 Invalid, 5945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5942 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-10 01:11:46,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2024-11-10 01:11:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 1647. [2024-11-10 01:11:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1625 states have (on average 1.4553846153846153) internal successors, (2365), 1625 states have internal predecessors, (2365), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 01:11:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2405 transitions. [2024-11-10 01:11:46,339 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2405 transitions. Word has length 315 [2024-11-10 01:11:46,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:46,340 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2405 transitions. [2024-11-10 01:11:46,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2405 transitions. [2024-11-10 01:11:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-11-10 01:11:46,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:46,344 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:46,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 01:11:46,344 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:46,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash -7939418, now seen corresponding path program 1 times [2024-11-10 01:11:46,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:46,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088738866] [2024-11-10 01:11:46,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:46,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:46,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:46,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:46,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:46,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-10 01:11:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:46,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-11-10 01:11:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:46,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2024-11-10 01:11:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:46,976 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:46,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:46,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088738866] [2024-11-10 01:11:46,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088738866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:46,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:46,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 01:11:46,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959713495] [2024-11-10 01:11:46,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:46,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 01:11:46,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:46,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 01:11:46,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:11:46,980 INFO L87 Difference]: Start difference. First operand 1647 states and 2405 transitions. Second operand has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:47,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:47,950 INFO L93 Difference]: Finished difference Result 2711 states and 3970 transitions. [2024-11-10 01:11:47,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:47,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 315 [2024-11-10 01:11:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:47,956 INFO L225 Difference]: With dead ends: 2711 [2024-11-10 01:11:47,956 INFO L226 Difference]: Without dead ends: 1663 [2024-11-10 01:11:47,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:11:47,959 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 1024 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 1685 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:47,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 2765 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-10 01:11:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-10 01:11:47,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1655. [2024-11-10 01:11:47,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1633 states have (on average 1.4531537048377219) internal successors, (2373), 1633 states have internal predecessors, (2373), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-10 01:11:47,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2413 transitions. [2024-11-10 01:11:47,990 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2413 transitions. Word has length 315 [2024-11-10 01:11:47,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:47,991 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2413 transitions. [2024-11-10 01:11:47,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.166666666666664) internal successors, (235), 6 states have internal predecessors, (235), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:47,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2413 transitions. [2024-11-10 01:11:47,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-10 01:11:47,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:47,995 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:47,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 01:11:47,995 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:47,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:47,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1953415250, now seen corresponding path program 1 times [2024-11-10 01:11:47,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:47,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192351742] [2024-11-10 01:11:47,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:47,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:48,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-10 01:11:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:49,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-10 01:11:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:49,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:49,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:11:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:49,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-10 01:11:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:49,011 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:49,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:49,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192351742] [2024-11-10 01:11:49,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192351742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:49,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:49,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 01:11:49,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515736914] [2024-11-10 01:11:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:49,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 01:11:49,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:49,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 01:11:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 01:11:49,014 INFO L87 Difference]: Start difference. First operand 1655 states and 2413 transitions. Second operand has 9 states, 9 states have (on average 26.22222222222222) internal successors, (236), 9 states have internal predecessors, (236), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:51,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:51,244 INFO L93 Difference]: Finished difference Result 4625 states and 6782 transitions. [2024-11-10 01:11:51,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 01:11:51,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 26.22222222222222) internal successors, (236), 9 states have internal predecessors, (236), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 316 [2024-11-10 01:11:51,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:51,255 INFO L225 Difference]: With dead ends: 4625 [2024-11-10 01:11:51,256 INFO L226 Difference]: Without dead ends: 3761 [2024-11-10 01:11:51,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-10 01:11:51,259 INFO L432 NwaCegarLoop]: 1258 mSDtfsCounter, 3035 mSDsluCounter, 6347 mSDsCounter, 0 mSdLazyCounter, 4664 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 7605 SdHoareTripleChecker+Invalid, 4673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:51,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 7605 Invalid, 4673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 4664 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-10 01:11:51,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3761 states. [2024-11-10 01:11:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3761 to 2007. [2024-11-10 01:11:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2007 states, 1975 states have (on average 1.4516455696202533) internal successors, (2867), 1975 states have internal predecessors, (2867), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-10 01:11:51,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2927 transitions. [2024-11-10 01:11:51,318 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2927 transitions. Word has length 316 [2024-11-10 01:11:51,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:51,318 INFO L471 AbstractCegarLoop]: Abstraction has 2007 states and 2927 transitions. [2024-11-10 01:11:51,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 26.22222222222222) internal successors, (236), 9 states have internal predecessors, (236), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:51,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2927 transitions. [2024-11-10 01:11:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-10 01:11:51,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:51,323 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:51,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 01:11:51,324 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:51,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:51,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1755205684, now seen corresponding path program 1 times [2024-11-10 01:11:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:51,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776383581] [2024-11-10 01:11:51,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:51,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:52,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:52,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:52,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:52,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:11:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:52,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-11-10 01:11:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:52,095 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:52,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:52,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776383581] [2024-11-10 01:11:52,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776383581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:52,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:52,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:11:52,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454670423] [2024-11-10 01:11:52,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:52,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:11:52,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:52,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:11:52,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:11:52,098 INFO L87 Difference]: Start difference. First operand 2007 states and 2927 transitions. Second operand has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:52,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:52,968 INFO L93 Difference]: Finished difference Result 2953 states and 4315 transitions. [2024-11-10 01:11:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 316 [2024-11-10 01:11:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:52,973 INFO L225 Difference]: With dead ends: 2953 [2024-11-10 01:11:52,973 INFO L226 Difference]: Without dead ends: 2031 [2024-11-10 01:11:52,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:52,975 INFO L432 NwaCegarLoop]: 683 mSDtfsCounter, 1009 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2730 SdHoareTripleChecker+Invalid, 1718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:52,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1010 Valid, 2730 Invalid, 1718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-10 01:11:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2024-11-10 01:11:53,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2019. [2024-11-10 01:11:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 1987 states have (on average 1.4458983392048315) internal successors, (2873), 1987 states have internal predecessors, (2873), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-10 01:11:53,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2933 transitions. [2024-11-10 01:11:53,011 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2933 transitions. Word has length 316 [2024-11-10 01:11:53,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:53,012 INFO L471 AbstractCegarLoop]: Abstraction has 2019 states and 2933 transitions. [2024-11-10 01:11:53,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.714285714285715) internal successors, (236), 7 states have internal predecessors, (236), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-10 01:11:53,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2933 transitions. [2024-11-10 01:11:53,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-10 01:11:53,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:53,016 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:53,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 01:11:53,016 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:53,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:53,017 INFO L85 PathProgramCache]: Analyzing trace with hash 2069785544, now seen corresponding path program 1 times [2024-11-10 01:11:53,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:53,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050422079] [2024-11-10 01:11:53,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:54,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:54,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:54,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:54,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:11:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:54,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 01:11:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:54,075 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2024-11-10 01:11:54,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:54,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050422079] [2024-11-10 01:11:54,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050422079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:54,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 01:11:54,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041257736] [2024-11-10 01:11:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:54,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 01:11:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 01:11:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:11:54,078 INFO L87 Difference]: Start difference. First operand 2019 states and 2933 transitions. Second operand has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:54,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:54,665 INFO L93 Difference]: Finished difference Result 3351 states and 4891 transitions. [2024-11-10 01:11:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 01:11:54,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 317 [2024-11-10 01:11:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:54,671 INFO L225 Difference]: With dead ends: 3351 [2024-11-10 01:11:54,671 INFO L226 Difference]: Without dead ends: 2516 [2024-11-10 01:11:54,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 01:11:54,674 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 1796 mSDsluCounter, 3642 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1801 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:54,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1801 Valid, 4555 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:11:54,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-10 01:11:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2516. [2024-11-10 01:11:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2479 states have (on average 1.4493747478822105) internal successors, (3593), 2479 states have internal predecessors, (3593), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-10 01:11:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3663 transitions. [2024-11-10 01:11:54,719 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3663 transitions. Word has length 317 [2024-11-10 01:11:54,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:54,720 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 3663 transitions. [2024-11-10 01:11:54,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 33.857142857142854) internal successors, (237), 7 states have internal predecessors, (237), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-10 01:11:54,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3663 transitions. [2024-11-10 01:11:54,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2024-11-10 01:11:54,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:54,728 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:54,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-10 01:11:54,729 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:54,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 963217775, now seen corresponding path program 1 times [2024-11-10 01:11:54,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:54,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199112460] [2024-11-10 01:11:54,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:54,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:11:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 01:11:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 489 [2024-11-10 01:11:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2024-11-10 01:11:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2024-11-10 01:11:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 546 [2024-11-10 01:11:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2024-11-10 01:11:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 615 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-10 01:11:55,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:55,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199112460] [2024-11-10 01:11:55,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199112460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:55,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 01:11:55,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 01:11:55,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346074781] [2024-11-10 01:11:55,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:55,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 01:11:55,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:55,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 01:11:55,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:11:55,532 INFO L87 Difference]: Start difference. First operand 2516 states and 3663 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:11:55,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:55,819 INFO L93 Difference]: Finished difference Result 3353 states and 4893 transitions. [2024-11-10 01:11:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 01:11:55,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 683 [2024-11-10 01:11:55,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:55,825 INFO L225 Difference]: With dead ends: 3353 [2024-11-10 01:11:55,825 INFO L226 Difference]: Without dead ends: 2518 [2024-11-10 01:11:55,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 01:11:55,827 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 0 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1854 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:55,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1854 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 01:11:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2024-11-10 01:11:55,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2518. [2024-11-10 01:11:55,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2481 states have (on average 1.449012494961709) internal successors, (3595), 2481 states have internal predecessors, (3595), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-10 01:11:55,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3665 transitions. [2024-11-10 01:11:55,894 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3665 transitions. Word has length 683 [2024-11-10 01:11:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:55,895 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 3665 transitions. [2024-11-10 01:11:55,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:11:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3665 transitions. [2024-11-10 01:11:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-10 01:11:55,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:55,907 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:55,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-10 01:11:55,908 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:55,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:55,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1490887504, now seen corresponding path program 1 times [2024-11-10 01:11:55,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:55,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281261939] [2024-11-10 01:11:55,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:55,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:11:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:11:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:11:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:11:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 01:11:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2024-11-10 01:11:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-11-10 01:11:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2024-11-10 01:11:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2024-11-10 01:11:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2024-11-10 01:11:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:56,789 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-10 01:11:56,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:11:56,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281261939] [2024-11-10 01:11:56,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281261939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:11:56,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67300835] [2024-11-10 01:11:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:56,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:11:56,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:11:56,793 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:11:56,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 01:11:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:11:57,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 3350 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 01:11:57,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:11:58,531 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-10 01:11:58,531 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:11:58,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67300835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:11:58,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:11:58,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 01:11:58,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457488016] [2024-11-10 01:11:58,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:11:58,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:11:58,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:11:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:11:58,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:11:58,534 INFO L87 Difference]: Start difference. First operand 2518 states and 3665 transitions. Second operand has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:11:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:11:59,074 INFO L93 Difference]: Finished difference Result 3354 states and 4893 transitions. [2024-11-10 01:11:59,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:11:59,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 685 [2024-11-10 01:11:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:11:59,080 INFO L225 Difference]: With dead ends: 3354 [2024-11-10 01:11:59,080 INFO L226 Difference]: Without dead ends: 2517 [2024-11-10 01:11:59,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:11:59,082 INFO L432 NwaCegarLoop]: 687 mSDtfsCounter, 831 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:11:59,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1376 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:11:59,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2517 states. [2024-11-10 01:11:59,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2517 to 2517. [2024-11-10 01:11:59,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2517 states, 2480 states have (on average 1.4483870967741936) internal successors, (3592), 2480 states have internal predecessors, (3592), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-10 01:11:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 3662 transitions. [2024-11-10 01:11:59,125 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 3662 transitions. Word has length 685 [2024-11-10 01:11:59,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:11:59,125 INFO L471 AbstractCegarLoop]: Abstraction has 2517 states and 3662 transitions. [2024-11-10 01:11:59,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:11:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 3662 transitions. [2024-11-10 01:11:59,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 687 [2024-11-10 01:11:59,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:11:59,134 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:11:59,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 01:11:59,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-10 01:11:59,335 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:11:59,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:11:59,335 INFO L85 PathProgramCache]: Analyzing trace with hash 503308134, now seen corresponding path program 1 times [2024-11-10 01:11:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:11:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241896651] [2024-11-10 01:11:59,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:11:59,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:11:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:12:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:12:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:12:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:12:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 01:12:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2024-11-10 01:12:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2024-11-10 01:12:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2024-11-10 01:12:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2024-11-10 01:12:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2024-11-10 01:12:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:00,141 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-10 01:12:00,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:12:00,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241896651] [2024-11-10 01:12:00,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241896651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:12:00,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258031851] [2024-11-10 01:12:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:00,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:12:00,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:12:00,143 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:12:00,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-10 01:12:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:01,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 3353 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 01:12:01,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:12:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-10 01:12:01,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:12:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258031851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:12:01,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:12:01,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 01:12:01,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872544016] [2024-11-10 01:12:01,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:12:01,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:12:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:12:01,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:12:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:12:01,953 INFO L87 Difference]: Start difference. First operand 2517 states and 3662 transitions. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:12:02,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:12:02,450 INFO L93 Difference]: Finished difference Result 3352 states and 4887 transitions. [2024-11-10 01:12:02,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:12:02,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 686 [2024-11-10 01:12:02,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:12:02,456 INFO L225 Difference]: With dead ends: 3352 [2024-11-10 01:12:02,456 INFO L226 Difference]: Without dead ends: 2516 [2024-11-10 01:12:02,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:12:02,458 INFO L432 NwaCegarLoop]: 687 mSDtfsCounter, 823 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:12:02,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 1376 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:12:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2516 states. [2024-11-10 01:12:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2516 to 2516. [2024-11-10 01:12:02,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 2479 states have (on average 1.4477611940298507) internal successors, (3589), 2479 states have internal predecessors, (3589), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-10 01:12:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3659 transitions. [2024-11-10 01:12:02,499 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3659 transitions. Word has length 686 [2024-11-10 01:12:02,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:12:02,499 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 3659 transitions. [2024-11-10 01:12:02,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:12:02,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3659 transitions. [2024-11-10 01:12:02,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2024-11-10 01:12:02,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:12:02,507 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:12:02,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-10 01:12:02,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-10 01:12:02,708 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:12:02,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:12:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1216817530, now seen corresponding path program 1 times [2024-11-10 01:12:02,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:12:02,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913909897] [2024-11-10 01:12:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:12:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:12:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:12:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:12:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:12:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 01:12:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-11-10 01:12:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2024-11-10 01:12:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 529 [2024-11-10 01:12:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2024-11-10 01:12:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 561 [2024-11-10 01:12:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-10 01:12:03,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:12:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913909897] [2024-11-10 01:12:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913909897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:12:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515331737] [2024-11-10 01:12:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:03,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:12:03,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:12:03,544 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:12:03,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-10 01:12:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:04,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 3356 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 01:12:04,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 01:12:05,510 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 279 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-10 01:12:05,510 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 01:12:05,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515331737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 01:12:05,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 01:12:05,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 01:12:05,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994323714] [2024-11-10 01:12:05,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 01:12:05,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 01:12:05,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 01:12:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 01:12:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 01:12:05,513 INFO L87 Difference]: Start difference. First operand 2516 states and 3659 transitions. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:12:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 01:12:06,012 INFO L93 Difference]: Finished difference Result 3350 states and 4881 transitions. [2024-11-10 01:12:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 01:12:06,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 687 [2024-11-10 01:12:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 01:12:06,017 INFO L225 Difference]: With dead ends: 3350 [2024-11-10 01:12:06,018 INFO L226 Difference]: Without dead ends: 2515 [2024-11-10 01:12:06,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 706 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 01:12:06,020 INFO L432 NwaCegarLoop]: 687 mSDtfsCounter, 809 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-10 01:12:06,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1376 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-10 01:12:06,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2024-11-10 01:12:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 2515. [2024-11-10 01:12:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2478 states have (on average 1.447134786117837) internal successors, (3586), 2478 states have internal predecessors, (3586), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-10 01:12:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 3656 transitions. [2024-11-10 01:12:06,067 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 3656 transitions. Word has length 687 [2024-11-10 01:12:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 01:12:06,068 INFO L471 AbstractCegarLoop]: Abstraction has 2515 states and 3656 transitions. [2024-11-10 01:12:06,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 01:12:06,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 3656 transitions. [2024-11-10 01:12:06,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-10 01:12:06,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 01:12:06,076 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 01:12:06,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-10 01:12:06,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-10 01:12:06,277 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 01:12:06,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 01:12:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash -462387665, now seen corresponding path program 1 times [2024-11-10 01:12:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 01:12:06,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316891871] [2024-11-10 01:12:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:06,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 01:12:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-10 01:12:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-10 01:12:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-10 01:12:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-10 01:12:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-10 01:12:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2024-11-10 01:12:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2024-11-10 01:12:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2024-11-10 01:12:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2024-11-10 01:12:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 562 [2024-11-10 01:12:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 01:12:07,136 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-10 01:12:07,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 01:12:07,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316891871] [2024-11-10 01:12:07,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316891871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 01:12:07,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882830212] [2024-11-10 01:12:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 01:12:07,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 01:12:07,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 01:12:07,139 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 01:12:07,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process