./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 74d57b3f1e9a386b0ff6bac396d798184771ae1b1b0bb917f750fc3ebefb1c2f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:39:01,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:39:01,634 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:39:01,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:39:01,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:39:01,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:39:01,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:39:01,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:39:01,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:39:01,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:39:01,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:39:01,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:39:01,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:39:01,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:39:01,676 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:39:01,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:39:01,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:39:01,677 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:39:01,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:39:01,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:39:01,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:39:01,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:39:01,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:39:01,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:39:01,682 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:39:01,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:39:01,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:39:01,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:39:01,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:39:01,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:39:01,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:39:01,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:39:01,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:39:01,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:39:01,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:39:01,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:39:01,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:39:01,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:39:01,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:39:01,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:39:01,685 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:39:01,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:39:01,687 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 74d57b3f1e9a386b0ff6bac396d798184771ae1b1b0bb917f750fc3ebefb1c2f [2024-11-16 08:39:01,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:39:01,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:39:01,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:39:01,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:39:01,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:39:01,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:39:03,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:39:03,549 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:39:03,552 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:39:03,568 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1419efadf/ff841c6089a340958bcffb7cd1d852e3/FLAGfde0d39ac [2024-11-16 08:39:03,888 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1419efadf/ff841c6089a340958bcffb7cd1d852e3 [2024-11-16 08:39:03,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:39:03,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:39:03,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:39:03,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:39:03,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:39:03,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:39:03" (1/1) ... [2024-11-16 08:39:03,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b48e8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:03, skipping insertion in model container [2024-11-16 08:39:03,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:39:03" (1/1) ... [2024-11-16 08:39:03,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:39:04,209 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6874,6887] [2024-11-16 08:39:04,223 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9049,9062] [2024-11-16 08:39:04,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:39:04,250 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:39:04,320 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6874,6887] [2024-11-16 08:39:04,329 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/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9049,9062] [2024-11-16 08:39:04,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:39:04,361 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:39:04,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04 WrapperNode [2024-11-16 08:39:04,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:39:04,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:39:04,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:39:04,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:39:04,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,383 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,418 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 483 [2024-11-16 08:39:04,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:39:04,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:39:04,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:39:04,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:39:04,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,433 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,447 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 08:39:04,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,456 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,463 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:39:04,464 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:39:04,464 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:39:04,464 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:39:04,467 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (1/1) ... [2024-11-16 08:39:04,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:39:04,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:39:04,509 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) [2024-11-16 08:39:04,512 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 [2024-11-16 08:39:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:39:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:39:04,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:39:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:39:04,705 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:39:04,710 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:39:05,181 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L333: havoc main_~node3__m3~2#1; [2024-11-16 08:39:05,181 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L318: havoc main_~node2__m2~2#1; [2024-11-16 08:39:05,181 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L269: havoc main_~check__tmp~1#1;havoc main_~node3__m3~1#1;havoc main_~node2__m2~1#1;havoc main_~node1__m1~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__m3~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__m2~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__m1~0#1;havoc main_~init__tmp~0#1; [2024-11-16 08:39:05,182 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L484: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:39:05,183 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L534: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:39:05,183 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L370: havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1; [2024-11-16 08:39:05,183 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:39:05,183 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L572: havoc main_~__tmp_4~0#1, main_~assert__arg~3#1; [2024-11-16 08:39:05,183 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L298: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1; [2024-11-16 08:39:05,220 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-11-16 08:39:05,222 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:39:05,238 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:39:05,238 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:39:05,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:39:05 BoogieIcfgContainer [2024-11-16 08:39:05,239 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:39:05,241 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:39:05,241 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:39:05,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:39:05,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:39:03" (1/3) ... [2024-11-16 08:39:05,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eec509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:39:05, skipping insertion in model container [2024-11-16 08:39:05,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:39:04" (2/3) ... [2024-11-16 08:39:05,251 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49eec509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:39:05, skipping insertion in model container [2024-11-16 08:39:05,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:39:05" (3/3) ... [2024-11-16 08:39:05,252 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:39:05,275 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:39:05,275 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 08:39:05,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:39:05,359 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;@24a6b4db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:39:05,360 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 08:39:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 108 states have (on average 1.712962962962963) internal successors, (185), 110 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:05,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 08:39:05,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:05,374 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:05,375 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:05,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:05,381 INFO L85 PathProgramCache]: Analyzing trace with hash 606735535, now seen corresponding path program 1 times [2024-11-16 08:39:05,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:05,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554831853] [2024-11-16 08:39:05,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:05,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:05,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:05,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554831853] [2024-11-16 08:39:05,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554831853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:05,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:05,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:39:05,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459174528] [2024-11-16 08:39:05,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:05,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:05,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:05,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:05,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:05,977 INFO L87 Difference]: Start difference. First operand has 111 states, 108 states have (on average 1.712962962962963) internal successors, (185), 110 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:06,258 INFO L93 Difference]: Finished difference Result 445 states and 691 transitions. [2024-11-16 08:39:06,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:39:06,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-16 08:39:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:06,277 INFO L225 Difference]: With dead ends: 445 [2024-11-16 08:39:06,277 INFO L226 Difference]: Without dead ends: 376 [2024-11-16 08:39:06,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:39:06,285 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 541 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:06,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 1093 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:39:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-16 08:39:06,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 162. [2024-11-16 08:39:06,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.425) internal successors, (228), 161 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 228 transitions. [2024-11-16 08:39:06,329 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 228 transitions. Word has length 47 [2024-11-16 08:39:06,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:06,330 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 228 transitions. [2024-11-16 08:39:06,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 228 transitions. [2024-11-16 08:39:06,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-16 08:39:06,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:06,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:06,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:39:06,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:06,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:06,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1633242230, now seen corresponding path program 1 times [2024-11-16 08:39:06,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:06,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718131773] [2024-11-16 08:39:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:06,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:06,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:06,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:06,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718131773] [2024-11-16 08:39:06,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718131773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:06,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:06,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:39:06,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753307153] [2024-11-16 08:39:06,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:06,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:39:06,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:39:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:06,442 INFO L87 Difference]: Start difference. First operand 162 states and 228 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:06,491 INFO L93 Difference]: Finished difference Result 259 states and 371 transitions. [2024-11-16 08:39:06,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:39:06,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-16 08:39:06,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:06,494 INFO L225 Difference]: With dead ends: 259 [2024-11-16 08:39:06,494 INFO L226 Difference]: Without dead ends: 166 [2024-11-16 08:39:06,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:06,496 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 78 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:06,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 314 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:06,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-16 08:39:06,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2024-11-16 08:39:06,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 162 states have (on average 1.4135802469135803) internal successors, (229), 163 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 229 transitions. [2024-11-16 08:39:06,516 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 229 transitions. Word has length 48 [2024-11-16 08:39:06,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:06,516 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 229 transitions. [2024-11-16 08:39:06,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,517 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 229 transitions. [2024-11-16 08:39:06,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:39:06,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:06,518 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:06,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:39:06,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:06,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash -648222317, now seen corresponding path program 1 times [2024-11-16 08:39:06,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:06,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933389415] [2024-11-16 08:39:06,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:06,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:06,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:06,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:06,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933389415] [2024-11-16 08:39:06,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933389415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:06,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:06,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:39:06,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001019366] [2024-11-16 08:39:06,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:06,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:06,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:06,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:06,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:06,709 INFO L87 Difference]: Start difference. First operand 164 states and 229 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:06,844 INFO L93 Difference]: Finished difference Result 505 states and 734 transitions. [2024-11-16 08:39:06,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:39:06,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-16 08:39:06,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:06,846 INFO L225 Difference]: With dead ends: 505 [2024-11-16 08:39:06,847 INFO L226 Difference]: Without dead ends: 415 [2024-11-16 08:39:06,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:06,853 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 313 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:06,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 829 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:06,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-16 08:39:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 263. [2024-11-16 08:39:06,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 261 states have (on average 1.4482758620689655) internal successors, (378), 262 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 378 transitions. [2024-11-16 08:39:06,873 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 378 transitions. Word has length 49 [2024-11-16 08:39:06,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:06,873 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 378 transitions. [2024-11-16 08:39:06,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:06,874 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 378 transitions. [2024-11-16 08:39:06,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:39:06,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:06,877 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:06,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:39:06,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:06,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:06,878 INFO L85 PathProgramCache]: Analyzing trace with hash 640710539, now seen corresponding path program 1 times [2024-11-16 08:39:06,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:06,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976634636] [2024-11-16 08:39:06,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:06,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:07,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:07,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976634636] [2024-11-16 08:39:07,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976634636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:07,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:07,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:39:07,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648733267] [2024-11-16 08:39:07,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:07,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:07,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:07,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:07,007 INFO L87 Difference]: Start difference. First operand 263 states and 378 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:07,103 INFO L93 Difference]: Finished difference Result 604 states and 883 transitions. [2024-11-16 08:39:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:39:07,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-16 08:39:07,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:07,106 INFO L225 Difference]: With dead ends: 604 [2024-11-16 08:39:07,106 INFO L226 Difference]: Without dead ends: 514 [2024-11-16 08:39:07,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:07,108 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 318 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:07,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 563 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-16 08:39:07,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 408. [2024-11-16 08:39:07,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 406 states have (on average 1.4655172413793103) internal successors, (595), 407 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 595 transitions. [2024-11-16 08:39:07,137 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 595 transitions. Word has length 49 [2024-11-16 08:39:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:07,138 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 595 transitions. [2024-11-16 08:39:07,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 595 transitions. [2024-11-16 08:39:07,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:39:07,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:07,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:07,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:39:07,141 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:07,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:07,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1503630189, now seen corresponding path program 1 times [2024-11-16 08:39:07,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:07,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143702695] [2024-11-16 08:39:07,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:07,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:07,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:07,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143702695] [2024-11-16 08:39:07,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143702695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:07,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:07,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:39:07,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503553812] [2024-11-16 08:39:07,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:07,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:07,287 INFO L87 Difference]: Start difference. First operand 408 states and 595 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:07,391 INFO L93 Difference]: Finished difference Result 698 states and 1024 transitions. [2024-11-16 08:39:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:39:07,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-16 08:39:07,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:07,394 INFO L225 Difference]: With dead ends: 698 [2024-11-16 08:39:07,396 INFO L226 Difference]: Without dead ends: 608 [2024-11-16 08:39:07,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:07,398 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 368 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:07,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 599 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:07,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-16 08:39:07,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 502. [2024-11-16 08:39:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.472) internal successors, (736), 501 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 736 transitions. [2024-11-16 08:39:07,412 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 736 transitions. Word has length 49 [2024-11-16 08:39:07,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:07,412 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 736 transitions. [2024-11-16 08:39:07,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,413 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 736 transitions. [2024-11-16 08:39:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 08:39:07,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:07,415 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:07,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:39:07,415 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:07,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:07,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1384254482, now seen corresponding path program 1 times [2024-11-16 08:39:07,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:07,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099837785] [2024-11-16 08:39:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:07,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:07,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:07,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099837785] [2024-11-16 08:39:07,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099837785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:07,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:07,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:39:07,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276536590] [2024-11-16 08:39:07,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:07,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:07,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:07,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:07,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:07,564 INFO L87 Difference]: Start difference. First operand 502 states and 736 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:07,659 INFO L93 Difference]: Finished difference Result 982 states and 1449 transitions. [2024-11-16 08:39:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:39:07,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-16 08:39:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:07,663 INFO L225 Difference]: With dead ends: 982 [2024-11-16 08:39:07,663 INFO L226 Difference]: Without dead ends: 502 [2024-11-16 08:39:07,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:07,665 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 393 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:07,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 85 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-16 08:39:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2024-11-16 08:39:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.452) internal successors, (726), 501 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 726 transitions. [2024-11-16 08:39:07,678 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 726 transitions. Word has length 50 [2024-11-16 08:39:07,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:07,678 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 726 transitions. [2024-11-16 08:39:07,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,678 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 726 transitions. [2024-11-16 08:39:07,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-16 08:39:07,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:07,679 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:07,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:39:07,680 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:07,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:07,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1839033277, now seen corresponding path program 1 times [2024-11-16 08:39:07,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:07,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213690510] [2024-11-16 08:39:07,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:07,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:07,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:07,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:07,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213690510] [2024-11-16 08:39:07,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213690510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:07,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:07,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:39:07,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716885998] [2024-11-16 08:39:07,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:07,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:07,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:07,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:07,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:07,792 INFO L87 Difference]: Start difference. First operand 502 states and 726 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:07,888 INFO L93 Difference]: Finished difference Result 978 states and 1425 transitions. [2024-11-16 08:39:07,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:39:07,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-16 08:39:07,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:07,891 INFO L225 Difference]: With dead ends: 978 [2024-11-16 08:39:07,891 INFO L226 Difference]: Without dead ends: 502 [2024-11-16 08:39:07,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:07,892 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 375 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:07,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 93 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-16 08:39:07,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2024-11-16 08:39:07,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.432) internal successors, (716), 501 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 716 transitions. [2024-11-16 08:39:07,908 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 716 transitions. Word has length 51 [2024-11-16 08:39:07,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:07,910 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 716 transitions. [2024-11-16 08:39:07,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:07,910 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 716 transitions. [2024-11-16 08:39:07,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 08:39:07,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:07,911 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:07,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:39:07,912 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:07,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:07,913 INFO L85 PathProgramCache]: Analyzing trace with hash -2033028402, now seen corresponding path program 1 times [2024-11-16 08:39:07,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:07,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530630169] [2024-11-16 08:39:07,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:07,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:08,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:08,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:08,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530630169] [2024-11-16 08:39:08,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530630169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:08,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:08,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:39:08,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41619295] [2024-11-16 08:39:08,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:08,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:39:08,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:08,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:39:08,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:39:08,016 INFO L87 Difference]: Start difference. First operand 502 states and 716 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:08,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:08,107 INFO L93 Difference]: Finished difference Result 974 states and 1401 transitions. [2024-11-16 08:39:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:39:08,108 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-16 08:39:08,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:08,110 INFO L225 Difference]: With dead ends: 974 [2024-11-16 08:39:08,110 INFO L226 Difference]: Without dead ends: 502 [2024-11-16 08:39:08,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:08,112 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 357 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:08,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 101 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-16 08:39:08,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 502. [2024-11-16 08:39:08,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.412) internal successors, (706), 501 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:08,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 706 transitions. [2024-11-16 08:39:08,121 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 706 transitions. Word has length 52 [2024-11-16 08:39:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:08,122 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 706 transitions. [2024-11-16 08:39:08,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:08,122 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 706 transitions. [2024-11-16 08:39:08,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:39:08,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:08,123 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:08,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:39:08,123 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:08,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:08,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1845672449, now seen corresponding path program 1 times [2024-11-16 08:39:08,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:08,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329462744] [2024-11-16 08:39:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:08,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:08,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:08,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:08,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329462744] [2024-11-16 08:39:08,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329462744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:08,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:08,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:39:08,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395225360] [2024-11-16 08:39:08,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:08,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:39:08,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:08,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:39:08,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:39:08,539 INFO L87 Difference]: Start difference. First operand 502 states and 706 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:08,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:08,968 INFO L93 Difference]: Finished difference Result 1395 states and 1978 transitions. [2024-11-16 08:39:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:39:08,969 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-16 08:39:08,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:08,973 INFO L225 Difference]: With dead ends: 1395 [2024-11-16 08:39:08,973 INFO L226 Difference]: Without dead ends: 960 [2024-11-16 08:39:08,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:39:08,976 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 643 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:08,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 506 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:39:08,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-16 08:39:08,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 502. [2024-11-16 08:39:08,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.408) internal successors, (704), 501 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:08,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 704 transitions. [2024-11-16 08:39:08,989 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 704 transitions. Word has length 53 [2024-11-16 08:39:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:08,989 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 704 transitions. [2024-11-16 08:39:08,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 704 transitions. [2024-11-16 08:39:08,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:39:08,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:08,990 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:08,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:39:08,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:08,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:08,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1147081975, now seen corresponding path program 1 times [2024-11-16 08:39:08,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:08,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039187558] [2024-11-16 08:39:08,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:08,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:09,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:09,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039187558] [2024-11-16 08:39:09,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039187558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:09,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:09,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:39:09,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875264327] [2024-11-16 08:39:09,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:09,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:39:09,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:09,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:39:09,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:39:09,295 INFO L87 Difference]: Start difference. First operand 502 states and 704 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:09,581 INFO L93 Difference]: Finished difference Result 1367 states and 1941 transitions. [2024-11-16 08:39:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:39:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-16 08:39:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:09,585 INFO L225 Difference]: With dead ends: 1367 [2024-11-16 08:39:09,585 INFO L226 Difference]: Without dead ends: 927 [2024-11-16 08:39:09,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-16 08:39:09,587 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 734 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:09,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 349 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:39:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-16 08:39:09,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 502. [2024-11-16 08:39:09,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.406) internal successors, (703), 501 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:09,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 703 transitions. [2024-11-16 08:39:09,601 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 703 transitions. Word has length 53 [2024-11-16 08:39:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:09,601 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 703 transitions. [2024-11-16 08:39:09,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:09,602 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 703 transitions. [2024-11-16 08:39:09,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 08:39:09,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:09,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:09,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:39:09,603 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:09,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash -686033134, now seen corresponding path program 1 times [2024-11-16 08:39:09,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:09,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396109992] [2024-11-16 08:39:09,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:09,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:09,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:09,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396109992] [2024-11-16 08:39:09,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396109992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:09,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:09,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:39:09,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689587004] [2024-11-16 08:39:09,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:09,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:39:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:39:09,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:39:09,898 INFO L87 Difference]: Start difference. First operand 502 states and 703 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:10,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:10,302 INFO L93 Difference]: Finished difference Result 1380 states and 1951 transitions. [2024-11-16 08:39:10,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:39:10,302 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-16 08:39:10,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:10,306 INFO L225 Difference]: With dead ends: 1380 [2024-11-16 08:39:10,306 INFO L226 Difference]: Without dead ends: 955 [2024-11-16 08:39:10,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:39:10,308 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 748 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:10,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 421 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:39:10,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-16 08:39:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 502. [2024-11-16 08:39:10,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 1.398) internal successors, (699), 501 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 699 transitions. [2024-11-16 08:39:10,320 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 699 transitions. Word has length 54 [2024-11-16 08:39:10,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:10,321 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 699 transitions. [2024-11-16 08:39:10,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 699 transitions. [2024-11-16 08:39:10,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:39:10,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:10,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:10,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:39:10,322 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:10,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash -386722441, now seen corresponding path program 1 times [2024-11-16 08:39:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:10,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297375142] [2024-11-16 08:39:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:11,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:11,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297375142] [2024-11-16 08:39:11,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297375142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:11,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:11,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-16 08:39:11,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101715019] [2024-11-16 08:39:11,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:11,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 08:39:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:11,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 08:39:11,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=410, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:39:11,575 INFO L87 Difference]: Start difference. First operand 502 states and 699 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:13,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:13,518 INFO L93 Difference]: Finished difference Result 1895 states and 2687 transitions. [2024-11-16 08:39:13,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 08:39:13,519 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 08:39:13,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:13,525 INFO L225 Difference]: With dead ends: 1895 [2024-11-16 08:39:13,526 INFO L226 Difference]: Without dead ends: 1796 [2024-11-16 08:39:13,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=297, Invalid=1425, Unknown=0, NotChecked=0, Total=1722 [2024-11-16 08:39:13,527 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 978 mSDsluCounter, 2538 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 2756 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:13,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 2756 Invalid, 1565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:39:13,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-11-16 08:39:13,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 512. [2024-11-16 08:39:13,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 510 states have (on average 1.396078431372549) internal successors, (712), 511 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:13,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 712 transitions. [2024-11-16 08:39:13,547 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 712 transitions. Word has length 55 [2024-11-16 08:39:13,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:13,547 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 712 transitions. [2024-11-16 08:39:13,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 712 transitions. [2024-11-16 08:39:13,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:39:13,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:13,548 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:13,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:39:13,549 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:13,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:13,549 INFO L85 PathProgramCache]: Analyzing trace with hash -616036831, now seen corresponding path program 1 times [2024-11-16 08:39:13,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:13,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901042626] [2024-11-16 08:39:13,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:13,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:14,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:14,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901042626] [2024-11-16 08:39:14,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901042626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:14,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:14,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-16 08:39:14,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983806415] [2024-11-16 08:39:14,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:14,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 08:39:14,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:14,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 08:39:14,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:39:14,443 INFO L87 Difference]: Start difference. First operand 512 states and 712 transitions. Second operand has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:15,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:15,989 INFO L93 Difference]: Finished difference Result 1983 states and 2813 transitions. [2024-11-16 08:39:15,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:39:15,990 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 08:39:15,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:15,995 INFO L225 Difference]: With dead ends: 1983 [2024-11-16 08:39:15,995 INFO L226 Difference]: Without dead ends: 1796 [2024-11-16 08:39:15,997 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=288, Invalid=1272, Unknown=0, NotChecked=0, Total=1560 [2024-11-16 08:39:15,998 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 787 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:15,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 2406 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 08:39:15,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2024-11-16 08:39:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 512. [2024-11-16 08:39:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 510 states have (on average 1.3941176470588235) internal successors, (711), 511 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:16,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 711 transitions. [2024-11-16 08:39:16,014 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 711 transitions. Word has length 55 [2024-11-16 08:39:16,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:16,014 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 711 transitions. [2024-11-16 08:39:16,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 711 transitions. [2024-11-16 08:39:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:39:16,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:16,015 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:16,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:39:16,015 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:16,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:16,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1770181303, now seen corresponding path program 1 times [2024-11-16 08:39:16,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:16,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111944609] [2024-11-16 08:39:16,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:16,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:16,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:16,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111944609] [2024-11-16 08:39:16,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111944609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:16,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:16,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:39:16,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117957175] [2024-11-16 08:39:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:16,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:39:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:39:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:39:16,576 INFO L87 Difference]: Start difference. First operand 512 states and 711 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:17,259 INFO L93 Difference]: Finished difference Result 1122 states and 1585 transitions. [2024-11-16 08:39:17,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:39:17,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 08:39:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:17,262 INFO L225 Difference]: With dead ends: 1122 [2024-11-16 08:39:17,263 INFO L226 Difference]: Without dead ends: 929 [2024-11-16 08:39:17,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:39:17,264 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 508 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:17,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 1156 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:39:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2024-11-16 08:39:17,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 505. [2024-11-16 08:39:17,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 503 states have (on average 1.389662027833002) internal successors, (699), 504 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:17,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 699 transitions. [2024-11-16 08:39:17,276 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 699 transitions. Word has length 55 [2024-11-16 08:39:17,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:17,277 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 699 transitions. [2024-11-16 08:39:17,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:17,277 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 699 transitions. [2024-11-16 08:39:17,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:39:17,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:17,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:17,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:39:17,278 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:17,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash -184521097, now seen corresponding path program 1 times [2024-11-16 08:39:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317440786] [2024-11-16 08:39:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:17,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:18,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:18,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317440786] [2024-11-16 08:39:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317440786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:18,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:18,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-16 08:39:18,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565611275] [2024-11-16 08:39:18,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:18,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 08:39:18,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:18,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 08:39:18,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:39:18,271 INFO L87 Difference]: Start difference. First operand 505 states and 699 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:20,254 INFO L93 Difference]: Finished difference Result 1865 states and 2641 transitions. [2024-11-16 08:39:20,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-16 08:39:20,254 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 08:39:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:20,258 INFO L225 Difference]: With dead ends: 1865 [2024-11-16 08:39:20,258 INFO L226 Difference]: Without dead ends: 1766 [2024-11-16 08:39:20,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=356, Invalid=1450, Unknown=0, NotChecked=0, Total=1806 [2024-11-16 08:39:20,260 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 890 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2703 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:20,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 2703 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:39:20,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-16 08:39:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 505. [2024-11-16 08:39:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 503 states have (on average 1.3876739562624254) internal successors, (698), 504 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 698 transitions. [2024-11-16 08:39:20,274 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 698 transitions. Word has length 55 [2024-11-16 08:39:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:20,274 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 698 transitions. [2024-11-16 08:39:20,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 698 transitions. [2024-11-16 08:39:20,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:39:20,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:20,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:20,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:39:20,275 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:20,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1697991943, now seen corresponding path program 1 times [2024-11-16 08:39:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488520322] [2024-11-16 08:39:20,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:20,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:21,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:21,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:21,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488520322] [2024-11-16 08:39:21,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488520322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:21,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:21,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-16 08:39:21,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106563479] [2024-11-16 08:39:21,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:21,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 08:39:21,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 08:39:21,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:39:21,156 INFO L87 Difference]: Start difference. First operand 505 states and 698 transitions. Second operand has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:22,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:22,543 INFO L93 Difference]: Finished difference Result 1953 states and 2767 transitions. [2024-11-16 08:39:22,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:39:22,544 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-16 08:39:22,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:22,549 INFO L225 Difference]: With dead ends: 1953 [2024-11-16 08:39:22,549 INFO L226 Difference]: Without dead ends: 1766 [2024-11-16 08:39:22,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:39:22,551 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 699 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:22,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 2371 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:39:22,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-16 08:39:22,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 509. [2024-11-16 08:39:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 507 states have (on average 1.3846153846153846) internal successors, (702), 508 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:22,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 702 transitions. [2024-11-16 08:39:22,567 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 702 transitions. Word has length 55 [2024-11-16 08:39:22,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:22,568 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 702 transitions. [2024-11-16 08:39:22,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 702 transitions. [2024-11-16 08:39:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:39:22,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:22,569 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:22,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:39:22,569 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:22,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:22,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1619143888, now seen corresponding path program 1 times [2024-11-16 08:39:22,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:22,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044241447] [2024-11-16 08:39:22,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:22,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:23,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:23,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044241447] [2024-11-16 08:39:23,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044241447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:23,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:23,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-16 08:39:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701514296] [2024-11-16 08:39:23,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:23,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 08:39:23,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:23,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 08:39:23,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-16 08:39:23,467 INFO L87 Difference]: Start difference. First operand 509 states and 702 transitions. Second operand has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:25,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:25,274 INFO L93 Difference]: Finished difference Result 1524 states and 2157 transitions. [2024-11-16 08:39:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:39:25,275 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 08:39:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:25,277 INFO L225 Difference]: With dead ends: 1524 [2024-11-16 08:39:25,277 INFO L226 Difference]: Without dead ends: 1321 [2024-11-16 08:39:25,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=263, Invalid=1069, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:39:25,279 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 748 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:25,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2372 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 08:39:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2024-11-16 08:39:25,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 493. [2024-11-16 08:39:25,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 491 states have (on average 1.3869653767820773) internal successors, (681), 492 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 681 transitions. [2024-11-16 08:39:25,291 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 681 transitions. Word has length 56 [2024-11-16 08:39:25,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:25,291 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 681 transitions. [2024-11-16 08:39:25,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.111111111111111) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:25,292 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 681 transitions. [2024-11-16 08:39:25,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:39:25,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:25,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:25,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:39:25,293 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:25,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash -719812304, now seen corresponding path program 1 times [2024-11-16 08:39:25,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:25,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968513370] [2024-11-16 08:39:25,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:25,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:26,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:26,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968513370] [2024-11-16 08:39:26,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968513370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:26,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:26,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-16 08:39:26,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805757296] [2024-11-16 08:39:26,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:26,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 08:39:26,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 08:39:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:39:26,194 INFO L87 Difference]: Start difference. First operand 493 states and 681 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:27,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:27,396 INFO L93 Difference]: Finished difference Result 1497 states and 2123 transitions. [2024-11-16 08:39:27,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 08:39:27,396 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 08:39:27,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:27,399 INFO L225 Difference]: With dead ends: 1497 [2024-11-16 08:39:27,399 INFO L226 Difference]: Without dead ends: 1310 [2024-11-16 08:39:27,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=232, Invalid=890, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 08:39:27,400 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 667 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:27,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 2579 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:39:27,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2024-11-16 08:39:27,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 489. [2024-11-16 08:39:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 487 states have (on average 1.3880903490759753) internal successors, (676), 488 states have internal predecessors, (676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:27,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 676 transitions. [2024-11-16 08:39:27,414 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 676 transitions. Word has length 56 [2024-11-16 08:39:27,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:27,414 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 676 transitions. [2024-11-16 08:39:27,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:27,414 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 676 transitions. [2024-11-16 08:39:27,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:39:27,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:27,415 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:27,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:39:27,415 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:27,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:27,416 INFO L85 PathProgramCache]: Analyzing trace with hash -800013992, now seen corresponding path program 1 times [2024-11-16 08:39:27,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:27,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711909272] [2024-11-16 08:39:27,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:27,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:28,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:28,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711909272] [2024-11-16 08:39:28,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711909272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:28,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:28,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-16 08:39:28,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567198690] [2024-11-16 08:39:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:28,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 08:39:28,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 08:39:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:39:28,490 INFO L87 Difference]: Start difference. First operand 489 states and 676 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:30,577 INFO L93 Difference]: Finished difference Result 1906 states and 2711 transitions. [2024-11-16 08:39:30,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 08:39:30,578 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 08:39:30,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:30,581 INFO L225 Difference]: With dead ends: 1906 [2024-11-16 08:39:30,581 INFO L226 Difference]: Without dead ends: 1714 [2024-11-16 08:39:30,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=274, Invalid=1132, Unknown=0, NotChecked=0, Total=1406 [2024-11-16 08:39:30,582 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 592 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 3429 SdHoareTripleChecker+Invalid, 1653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:30,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 3429 Invalid, 1653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:39:30,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2024-11-16 08:39:30,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 489. [2024-11-16 08:39:30,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 487 states have (on average 1.3860369609856262) internal successors, (675), 488 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 675 transitions. [2024-11-16 08:39:30,596 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 675 transitions. Word has length 56 [2024-11-16 08:39:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:30,597 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 675 transitions. [2024-11-16 08:39:30,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:30,597 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 675 transitions. [2024-11-16 08:39:30,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:39:30,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:30,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:30,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:39:30,598 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:30,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:30,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1853022060, now seen corresponding path program 1 times [2024-11-16 08:39:30,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:30,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276592800] [2024-11-16 08:39:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:30,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:31,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276592800] [2024-11-16 08:39:31,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276592800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:31,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:31,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:39:31,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159350754] [2024-11-16 08:39:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:31,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:39:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:31,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:39:31,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:39:31,059 INFO L87 Difference]: Start difference. First operand 489 states and 675 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:31,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:31,559 INFO L93 Difference]: Finished difference Result 1079 states and 1524 transitions. [2024-11-16 08:39:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:39:31,560 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-16 08:39:31,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:31,562 INFO L225 Difference]: With dead ends: 1079 [2024-11-16 08:39:31,562 INFO L226 Difference]: Without dead ends: 888 [2024-11-16 08:39:31,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:39:31,563 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 488 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:31,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1370 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:39:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2024-11-16 08:39:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 474. [2024-11-16 08:39:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 472 states have (on average 1.3919491525423728) internal successors, (657), 473 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:31,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 657 transitions. [2024-11-16 08:39:31,573 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 657 transitions. Word has length 56 [2024-11-16 08:39:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:31,573 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 657 transitions. [2024-11-16 08:39:31,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 657 transitions. [2024-11-16 08:39:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-16 08:39:31,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:31,573 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:31,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:39:31,574 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:31,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:31,574 INFO L85 PathProgramCache]: Analyzing trace with hash -541216255, now seen corresponding path program 1 times [2024-11-16 08:39:31,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:31,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221602386] [2024-11-16 08:39:31,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:31,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:31,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:31,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221602386] [2024-11-16 08:39:31,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221602386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:31,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:31,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:39:31,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297201918] [2024-11-16 08:39:31,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:31,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:39:31,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:31,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:39:31,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:39:31,967 INFO L87 Difference]: Start difference. First operand 474 states and 657 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:32,273 INFO L93 Difference]: Finished difference Result 1056 states and 1498 transitions. [2024-11-16 08:39:32,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-16 08:39:32,274 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-16 08:39:32,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:32,276 INFO L225 Difference]: With dead ends: 1056 [2024-11-16 08:39:32,276 INFO L226 Difference]: Without dead ends: 859 [2024-11-16 08:39:32,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2024-11-16 08:39:32,276 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 410 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:32,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 685 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:32,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-16 08:39:32,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 455. [2024-11-16 08:39:32,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 1.4030837004405285) internal successors, (637), 454 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 637 transitions. [2024-11-16 08:39:32,287 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 637 transitions. Word has length 57 [2024-11-16 08:39:32,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:32,287 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 637 transitions. [2024-11-16 08:39:32,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,287 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 637 transitions. [2024-11-16 08:39:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 08:39:32,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:32,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:32,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:39:32,289 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:32,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:32,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1280340822, now seen corresponding path program 1 times [2024-11-16 08:39:32,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:32,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973479170] [2024-11-16 08:39:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:32,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:32,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:32,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973479170] [2024-11-16 08:39:32,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973479170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:32,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:32,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:39:32,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870869405] [2024-11-16 08:39:32,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:32,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:39:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:32,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:39:32,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:32,387 INFO L87 Difference]: Start difference. First operand 455 states and 637 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:32,565 INFO L93 Difference]: Finished difference Result 1611 states and 2331 transitions. [2024-11-16 08:39:32,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:39:32,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-16 08:39:32,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:32,570 INFO L225 Difference]: With dead ends: 1611 [2024-11-16 08:39:32,570 INFO L226 Difference]: Without dead ends: 1213 [2024-11-16 08:39:32,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:39:32,572 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 519 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:32,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 304 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:32,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-16 08:39:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 941. [2024-11-16 08:39:32,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 1.424468085106383) internal successors, (1339), 940 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1339 transitions. [2024-11-16 08:39:32,591 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1339 transitions. Word has length 77 [2024-11-16 08:39:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:32,592 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1339 transitions. [2024-11-16 08:39:32,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,592 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1339 transitions. [2024-11-16 08:39:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:39:32,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:32,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:32,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:39:32,594 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:32,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash -8612649, now seen corresponding path program 1 times [2024-11-16 08:39:32,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:32,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232407170] [2024-11-16 08:39:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:32,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:32,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:32,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:32,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232407170] [2024-11-16 08:39:32,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232407170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:32,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:32,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:39:32,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982587232] [2024-11-16 08:39:32,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:32,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:39:32,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:32,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:39:32,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:32,719 INFO L87 Difference]: Start difference. First operand 941 states and 1339 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:32,874 INFO L93 Difference]: Finished difference Result 3069 states and 4437 transitions. [2024-11-16 08:39:32,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:39:32,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-16 08:39:32,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:32,879 INFO L225 Difference]: With dead ends: 3069 [2024-11-16 08:39:32,879 INFO L226 Difference]: Without dead ends: 2185 [2024-11-16 08:39:32,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:39:32,881 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 635 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:32,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 233 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:32,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2024-11-16 08:39:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2003. [2024-11-16 08:39:32,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2003 states, 2002 states have (on average 1.433066933066933) internal successors, (2869), 2002 states have internal predecessors, (2869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2869 transitions. [2024-11-16 08:39:32,913 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2869 transitions. Word has length 78 [2024-11-16 08:39:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:32,913 INFO L471 AbstractCegarLoop]: Abstraction has 2003 states and 2869 transitions. [2024-11-16 08:39:32,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2869 transitions. [2024-11-16 08:39:32,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:39:32,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:32,915 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:32,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:39:32,915 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:32,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:32,915 INFO L85 PathProgramCache]: Analyzing trace with hash -486133346, now seen corresponding path program 1 times [2024-11-16 08:39:32,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:32,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076985409] [2024-11-16 08:39:32,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:32,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:32,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:32,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076985409] [2024-11-16 08:39:32,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076985409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:32,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:32,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:39:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959775547] [2024-11-16 08:39:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:32,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:39:32,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:39:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:32,958 INFO L87 Difference]: Start difference. First operand 2003 states and 2869 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:32,992 INFO L93 Difference]: Finished difference Result 5053 states and 7217 transitions. [2024-11-16 08:39:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:39:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-11-16 08:39:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:33,008 INFO L225 Difference]: With dead ends: 5053 [2024-11-16 08:39:33,010 INFO L226 Difference]: Without dead ends: 3107 [2024-11-16 08:39:33,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:33,014 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 73 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:33,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 195 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:33,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-16 08:39:33,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3069. [2024-11-16 08:39:33,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3068 states have (on average 1.400586701434159) internal successors, (4297), 3068 states have internal predecessors, (4297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 4297 transitions. [2024-11-16 08:39:33,063 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 4297 transitions. Word has length 78 [2024-11-16 08:39:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:33,063 INFO L471 AbstractCegarLoop]: Abstraction has 3069 states and 4297 transitions. [2024-11-16 08:39:33,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 4297 transitions. [2024-11-16 08:39:33,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:39:33,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:33,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:33,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:39:33,065 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:33,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1762386982, now seen corresponding path program 1 times [2024-11-16 08:39:33,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:33,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170558295] [2024-11-16 08:39:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:33,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:33,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:33,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:33,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170558295] [2024-11-16 08:39:33,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170558295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:33,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:33,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:39:33,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906661719] [2024-11-16 08:39:33,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:33,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:39:33,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:33,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:39:33,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:33,135 INFO L87 Difference]: Start difference. First operand 3069 states and 4297 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:33,161 INFO L93 Difference]: Finished difference Result 5759 states and 8049 transitions. [2024-11-16 08:39:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:39:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-16 08:39:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:33,171 INFO L225 Difference]: With dead ends: 5759 [2024-11-16 08:39:33,175 INFO L226 Difference]: Without dead ends: 2747 [2024-11-16 08:39:33,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:33,179 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 54 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:33,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 263 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2024-11-16 08:39:33,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2204. [2024-11-16 08:39:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2204 states, 2203 states have (on average 1.3699500680889696) internal successors, (3018), 2203 states have internal predecessors, (3018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2204 states to 2204 states and 3018 transitions. [2024-11-16 08:39:33,235 INFO L78 Accepts]: Start accepts. Automaton has 2204 states and 3018 transitions. Word has length 79 [2024-11-16 08:39:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:33,236 INFO L471 AbstractCegarLoop]: Abstraction has 2204 states and 3018 transitions. [2024-11-16 08:39:33,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2204 states and 3018 transitions. [2024-11-16 08:39:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 08:39:33,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:33,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:33,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:39:33,237 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:33,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:33,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1475923434, now seen corresponding path program 1 times [2024-11-16 08:39:33,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:33,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551311013] [2024-11-16 08:39:33,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:33,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:33,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551311013] [2024-11-16 08:39:33,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551311013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:33,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:33,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:39:33,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815634303] [2024-11-16 08:39:33,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:33,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:39:33,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:33,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:39:33,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:33,308 INFO L87 Difference]: Start difference. First operand 2204 states and 3018 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:33,340 INFO L93 Difference]: Finished difference Result 6237 states and 8511 transitions. [2024-11-16 08:39:33,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:39:33,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-16 08:39:33,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:33,355 INFO L225 Difference]: With dead ends: 6237 [2024-11-16 08:39:33,356 INFO L226 Difference]: Without dead ends: 4090 [2024-11-16 08:39:33,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:33,359 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 47 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:33,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 264 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4090 states. [2024-11-16 08:39:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4090 to 3746. [2024-11-16 08:39:33,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3745 states have (on average 1.3527369826435247) internal successors, (5066), 3745 states have internal predecessors, (5066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 5066 transitions. [2024-11-16 08:39:33,411 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 5066 transitions. Word has length 80 [2024-11-16 08:39:33,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:33,411 INFO L471 AbstractCegarLoop]: Abstraction has 3746 states and 5066 transitions. [2024-11-16 08:39:33,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,411 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 5066 transitions. [2024-11-16 08:39:33,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:39:33,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:33,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:33,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:39:33,413 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash -303450535, now seen corresponding path program 1 times [2024-11-16 08:39:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:33,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105914179] [2024-11-16 08:39:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:33,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:33,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:33,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105914179] [2024-11-16 08:39:33,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105914179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:33,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:33,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:39:33,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779490818] [2024-11-16 08:39:33,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:33,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:39:33,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:33,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:39:33,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:39:33,592 INFO L87 Difference]: Start difference. First operand 3746 states and 5066 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:33,646 INFO L93 Difference]: Finished difference Result 3964 states and 5331 transitions. [2024-11-16 08:39:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:39:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 08:39:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:33,653 INFO L225 Difference]: With dead ends: 3964 [2024-11-16 08:39:33,653 INFO L226 Difference]: Without dead ends: 3962 [2024-11-16 08:39:33,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:39:33,659 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:33,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 604 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:33,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3962 states. [2024-11-16 08:39:33,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3962 to 3962. [2024-11-16 08:39:33,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3961 states have (on average 1.3259277960111082) internal successors, (5252), 3961 states have internal predecessors, (5252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 5252 transitions. [2024-11-16 08:39:33,701 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 5252 transitions. Word has length 81 [2024-11-16 08:39:33,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:33,701 INFO L471 AbstractCegarLoop]: Abstraction has 3962 states and 5252 transitions. [2024-11-16 08:39:33,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 5252 transitions. [2024-11-16 08:39:33,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:39:33,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:33,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:33,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:39:33,703 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:33,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:33,703 INFO L85 PathProgramCache]: Analyzing trace with hash -240398425, now seen corresponding path program 1 times [2024-11-16 08:39:33,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:33,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656711941] [2024-11-16 08:39:33,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:33,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:33,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:33,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656711941] [2024-11-16 08:39:33,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656711941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:33,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:33,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:39:33,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869389810] [2024-11-16 08:39:33,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:33,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:39:33,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:33,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:39:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:39:33,808 INFO L87 Difference]: Start difference. First operand 3962 states and 5252 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:33,992 INFO L93 Difference]: Finished difference Result 8175 states and 10859 transitions. [2024-11-16 08:39:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:39:33,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2024-11-16 08:39:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:33,999 INFO L225 Difference]: With dead ends: 8175 [2024-11-16 08:39:33,999 INFO L226 Difference]: Without dead ends: 4270 [2024-11-16 08:39:34,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:39:34,003 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 497 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:34,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 266 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:39:34,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2024-11-16 08:39:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3962. [2024-11-16 08:39:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3961 states have (on average 1.3122948750315577) internal successors, (5198), 3961 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 5198 transitions. [2024-11-16 08:39:34,057 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 5198 transitions. Word has length 81 [2024-11-16 08:39:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:34,057 INFO L471 AbstractCegarLoop]: Abstraction has 3962 states and 5198 transitions. [2024-11-16 08:39:34,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 5198 transitions. [2024-11-16 08:39:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:39:34,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:34,059 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:34,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:39:34,059 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:34,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:34,059 INFO L85 PathProgramCache]: Analyzing trace with hash 175538008, now seen corresponding path program 1 times [2024-11-16 08:39:34,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:34,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960914769] [2024-11-16 08:39:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:34,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:34,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:34,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:34,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:34,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960914769] [2024-11-16 08:39:34,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960914769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:34,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:34,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:39:34,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058825424] [2024-11-16 08:39:34,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:34,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:39:34,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:34,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:39:34,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:34,134 INFO L87 Difference]: Start difference. First operand 3962 states and 5198 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:34,162 INFO L93 Difference]: Finished difference Result 8501 states and 11148 transitions. [2024-11-16 08:39:34,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:39:34,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-16 08:39:34,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:34,169 INFO L225 Difference]: With dead ends: 8501 [2024-11-16 08:39:34,170 INFO L226 Difference]: Without dead ends: 4596 [2024-11-16 08:39:34,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:34,177 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 58 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:34,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 270 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:34,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2024-11-16 08:39:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4450. [2024-11-16 08:39:34,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 4449 states have (on average 1.2939986513823332) internal successors, (5757), 4449 states have internal predecessors, (5757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 5757 transitions. [2024-11-16 08:39:34,243 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 5757 transitions. Word has length 82 [2024-11-16 08:39:34,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:34,244 INFO L471 AbstractCegarLoop]: Abstraction has 4450 states and 5757 transitions. [2024-11-16 08:39:34,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 5757 transitions. [2024-11-16 08:39:34,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:39:34,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:34,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:39:34,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:39:34,246 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:34,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:34,247 INFO L85 PathProgramCache]: Analyzing trace with hash 500866191, now seen corresponding path program 1 times [2024-11-16 08:39:34,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548837138] [2024-11-16 08:39:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:34,355 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:34,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:34,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548837138] [2024-11-16 08:39:34,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548837138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:39:34,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:39:34,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:39:34,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219632395] [2024-11-16 08:39:34,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:39:34,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:39:34,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:34,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:39:34,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:34,356 INFO L87 Difference]: Start difference. First operand 4450 states and 5757 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:34,388 INFO L93 Difference]: Finished difference Result 8521 states and 10951 transitions. [2024-11-16 08:39:34,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:39:34,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-16 08:39:34,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:34,394 INFO L225 Difference]: With dead ends: 8521 [2024-11-16 08:39:34,395 INFO L226 Difference]: Without dead ends: 4128 [2024-11-16 08:39:34,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:39:34,399 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 55 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:34,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 237 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:39:34,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2024-11-16 08:39:34,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 4126. [2024-11-16 08:39:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4126 states, 4125 states have (on average 1.256) internal successors, (5181), 4125 states have internal predecessors, (5181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4126 states to 4126 states and 5181 transitions. [2024-11-16 08:39:34,443 INFO L78 Accepts]: Start accepts. Automaton has 4126 states and 5181 transitions. Word has length 103 [2024-11-16 08:39:34,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:34,443 INFO L471 AbstractCegarLoop]: Abstraction has 4126 states and 5181 transitions. [2024-11-16 08:39:34,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:39:34,443 INFO L276 IsEmpty]: Start isEmpty. Operand 4126 states and 5181 transitions. [2024-11-16 08:39:34,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:39:34,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:34,445 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:39:34,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:39:34,445 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:34,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:34,445 INFO L85 PathProgramCache]: Analyzing trace with hash -974392070, now seen corresponding path program 1 times [2024-11-16 08:39:34,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:34,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753994750] [2024-11-16 08:39:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:34,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:34,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:34,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753994750] [2024-11-16 08:39:34,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753994750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:39:34,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194535931] [2024-11-16 08:39:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:34,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:39:34,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:39:34,901 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) [2024-11-16 08:39:34,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 08:39:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:35,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-16 08:39:35,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:39:36,442 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:36,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:39:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:38,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194535931] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:39:38,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:39:38,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 16] total 41 [2024-11-16 08:39:38,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111924502] [2024-11-16 08:39:38,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:39:38,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-16 08:39:38,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:38,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-16 08:39:38,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1505, Unknown=0, NotChecked=0, Total=1640 [2024-11-16 08:39:38,079 INFO L87 Difference]: Start difference. First operand 4126 states and 5181 transitions. Second operand has 41 states, 41 states have (on average 6.951219512195122) internal successors, (285), 41 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)