./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.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.3.1.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 233676c1e8a1b5798ecf495818fb18bbff45b7aea47a9aff904b2f64a9e366a2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:38:07,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:38:07,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:38:07,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:38:07,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:38:07,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:38:07,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:38:07,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:38:07,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:38:07,388 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:38:07,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:38:07,389 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:38:07,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:38:07,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:38:07,392 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:38:07,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:38:07,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:38:07,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:38:07,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:38:07,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:38:07,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:38:07,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:38:07,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:38:07,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:38:07,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:38:07,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:38:07,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:38:07,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:38:07,399 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:38:07,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:38:07,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:38:07,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:38:07,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:38:07,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:38:07,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:38:07,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:38:07,401 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:38:07,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:38:07,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:38:07,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:38:07,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:38:07,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:38:07,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 233676c1e8a1b5798ecf495818fb18bbff45b7aea47a9aff904b2f64a9e366a2 [2024-11-16 08:38:07,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:38:07,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:38:07,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:38:07,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:38:07,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:38:07,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:38:09,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:38:09,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:38:09,403 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:38:09,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86be3ff89/55ed37943aa445d2900c95af92802cbd/FLAG0d7a507a2 [2024-11-16 08:38:09,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86be3ff89/55ed37943aa445d2900c95af92802cbd [2024-11-16 08:38:09,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:38:09,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:38:09,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:38:09,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:38:09,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:38:09,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:38:09" (1/1) ... [2024-11-16 08:38:09,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6faf1a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:09, skipping insertion in model container [2024-11-16 08:38:09,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:38:09" (1/1) ... [2024-11-16 08:38:09,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:38:10,102 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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6876,6889] [2024-11-16 08:38:10,125 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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9071,9084] [2024-11-16 08:38:10,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:38:10,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:38:10,197 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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6876,6889] [2024-11-16 08:38:10,205 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.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[9071,9084] [2024-11-16 08:38:10,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:38:10,232 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:38:10,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10 WrapperNode [2024-11-16 08:38:10,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:38:10,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:38:10,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:38:10,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:38:10,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,281 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 485 [2024-11-16 08:38:10,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:38:10,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:38:10,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:38:10,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:38:10,292 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,321 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 08:38:10,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:38:10,340 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:38:10,340 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:38:10,340 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:38:10,342 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (1/1) ... [2024-11-16 08:38:10,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:38:10,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:38:10,378 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 08:38:10,385 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 08:38:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:38:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:38:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:38:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:38:10,551 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:38:10,556 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:38:11,036 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L333: havoc main_~node3__m3~2#1; [2024-11-16 08:38:11,037 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L318: havoc main_~node2__m2~2#1; [2024-11-16 08:38:11,037 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 08:38:11,037 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L484: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:38:11,038 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L535: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:38:11,038 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 08:38:11,039 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:38:11,039 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L573: havoc main_~__tmp_4~0#1, main_~assert__arg~3#1; [2024-11-16 08:38:11,039 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 08:38:11,070 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-11-16 08:38:11,071 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:38:11,088 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:38:11,090 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:38:11,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:38:11 BoogieIcfgContainer [2024-11-16 08:38:11,090 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:38:11,093 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:38:11,094 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:38:11,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:38:11,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:38:09" (1/3) ... [2024-11-16 08:38:11,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cd3b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:11, skipping insertion in model container [2024-11-16 08:38:11,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:10" (2/3) ... [2024-11-16 08:38:11,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64cd3b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:11, skipping insertion in model container [2024-11-16 08:38:11,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:38:11" (3/3) ... [2024-11-16 08:38:11,100 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:38:11,117 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:38:11,117 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 08:38:11,179 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:38:11,186 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;@1e672ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:38:11,186 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 08:38:11,190 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 08:38:11,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 08:38:11,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:11,200 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 08:38:11,200 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:11,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:11,206 INFO L85 PathProgramCache]: Analyzing trace with hash 606735535, now seen corresponding path program 1 times [2024-11-16 08:38:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:11,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128636860] [2024-11-16 08:38:11,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:11,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:11,821 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 08:38:11,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:11,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128636860] [2024-11-16 08:38:11,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128636860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:11,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:11,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:38:11,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954260432] [2024-11-16 08:38:11,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:11,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:11,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:11,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:11,854 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 08:38:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:12,122 INFO L93 Difference]: Finished difference Result 445 states and 691 transitions. [2024-11-16 08:38:12,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 08:38:12,125 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 08:38:12,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:12,140 INFO L225 Difference]: With dead ends: 445 [2024-11-16 08:38:12,141 INFO L226 Difference]: Without dead ends: 376 [2024-11-16 08:38:12,144 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 08:38:12,149 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 08:38:12,150 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 08:38:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-16 08:38:12,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 162. [2024-11-16 08:38:12,191 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 08:38:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 228 transitions. [2024-11-16 08:38:12,193 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 228 transitions. Word has length 47 [2024-11-16 08:38:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:12,196 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 228 transitions. [2024-11-16 08:38:12,196 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 08:38:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 228 transitions. [2024-11-16 08:38:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-16 08:38:12,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:12,198 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 08:38:12,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:38:12,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:12,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:12,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1633242230, now seen corresponding path program 1 times [2024-11-16 08:38:12,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:12,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700691346] [2024-11-16 08:38:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:12,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:12,294 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 08:38:12,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700691346] [2024-11-16 08:38:12,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700691346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:12,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:12,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:12,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696271517] [2024-11-16 08:38:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:12,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:12,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:12,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:12,300 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 08:38:12,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:12,353 INFO L93 Difference]: Finished difference Result 259 states and 371 transitions. [2024-11-16 08:38:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:12,353 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 08:38:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:12,355 INFO L225 Difference]: With dead ends: 259 [2024-11-16 08:38:12,356 INFO L226 Difference]: Without dead ends: 166 [2024-11-16 08:38:12,356 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 08:38:12,359 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 08:38:12,360 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 08:38:12,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-16 08:38:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 164. [2024-11-16 08:38:12,386 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 08:38:12,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 229 transitions. [2024-11-16 08:38:12,390 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 229 transitions. Word has length 48 [2024-11-16 08:38:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:12,392 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 229 transitions. [2024-11-16 08:38:12,392 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 08:38:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 229 transitions. [2024-11-16 08:38:12,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:38:12,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:12,395 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 08:38:12,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:38:12,396 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:12,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash -648222317, now seen corresponding path program 1 times [2024-11-16 08:38:12,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:12,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587628366] [2024-11-16 08:38:12,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:12,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:12,615 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 08:38:12,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:12,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587628366] [2024-11-16 08:38:12,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587628366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:12,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:12,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:38:12,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339093388] [2024-11-16 08:38:12,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:12,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:12,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:12,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:12,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:12,622 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 08:38:12,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:12,748 INFO L93 Difference]: Finished difference Result 505 states and 734 transitions. [2024-11-16 08:38:12,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:38:12,748 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 08:38:12,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:12,751 INFO L225 Difference]: With dead ends: 505 [2024-11-16 08:38:12,751 INFO L226 Difference]: Without dead ends: 415 [2024-11-16 08:38:12,754 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 08:38:12,755 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 08:38:12,757 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 08:38:12,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-16 08:38:12,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 263. [2024-11-16 08:38:12,781 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 08:38:12,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 378 transitions. [2024-11-16 08:38:12,782 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 378 transitions. Word has length 49 [2024-11-16 08:38:12,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:12,782 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 378 transitions. [2024-11-16 08:38:12,783 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 08:38:12,783 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 378 transitions. [2024-11-16 08:38:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:38:12,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:12,784 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 08:38:12,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:38:12,784 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:12,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash 640710539, now seen corresponding path program 1 times [2024-11-16 08:38:12,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:12,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002473159] [2024-11-16 08:38:12,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:12,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:12,930 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 08:38:12,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:12,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002473159] [2024-11-16 08:38:12,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002473159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:12,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:12,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:38:12,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4175404] [2024-11-16 08:38:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:12,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:12,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:12,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:12,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:12,935 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 08:38:13,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:13,049 INFO L93 Difference]: Finished difference Result 604 states and 883 transitions. [2024-11-16 08:38:13,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:38:13,049 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 08:38:13,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:13,051 INFO L225 Difference]: With dead ends: 604 [2024-11-16 08:38:13,051 INFO L226 Difference]: Without dead ends: 514 [2024-11-16 08:38:13,052 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 08:38:13,053 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 08:38:13,054 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 08:38:13,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-16 08:38:13,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 408. [2024-11-16 08:38:13,064 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 08:38:13,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 595 transitions. [2024-11-16 08:38:13,065 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 595 transitions. Word has length 49 [2024-11-16 08:38:13,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:13,066 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 595 transitions. [2024-11-16 08:38:13,066 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 08:38:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 595 transitions. [2024-11-16 08:38:13,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-16 08:38:13,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:13,068 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 08:38:13,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:38:13,068 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:13,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:13,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1503630189, now seen corresponding path program 1 times [2024-11-16 08:38:13,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:13,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475817588] [2024-11-16 08:38:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:13,211 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 08:38:13,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:13,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475817588] [2024-11-16 08:38:13,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475817588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:13,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:13,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:38:13,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805450804] [2024-11-16 08:38:13,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:13,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:13,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:13,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:13,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:13,214 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 08:38:13,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:13,320 INFO L93 Difference]: Finished difference Result 698 states and 1024 transitions. [2024-11-16 08:38:13,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:38:13,321 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 08:38:13,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:13,324 INFO L225 Difference]: With dead ends: 698 [2024-11-16 08:38:13,324 INFO L226 Difference]: Without dead ends: 608 [2024-11-16 08:38:13,324 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 08:38:13,325 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 08:38:13,326 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 08:38:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-16 08:38:13,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 502. [2024-11-16 08:38:13,335 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 08:38:13,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 736 transitions. [2024-11-16 08:38:13,337 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 736 transitions. Word has length 49 [2024-11-16 08:38:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:13,338 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 736 transitions. [2024-11-16 08:38:13,338 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 08:38:13,338 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 736 transitions. [2024-11-16 08:38:13,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 08:38:13,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:13,342 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 08:38:13,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:38:13,342 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:13,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:13,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1384254482, now seen corresponding path program 1 times [2024-11-16 08:38:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:13,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360938894] [2024-11-16 08:38:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:13,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:13,483 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 08:38:13,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:13,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360938894] [2024-11-16 08:38:13,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360938894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:13,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:13,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:38:13,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687735492] [2024-11-16 08:38:13,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:13,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:13,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:13,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:13,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:13,485 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 08:38:13,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:13,630 INFO L93 Difference]: Finished difference Result 1422 states and 2107 transitions. [2024-11-16 08:38:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:38:13,631 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 08:38:13,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:13,634 INFO L225 Difference]: With dead ends: 1422 [2024-11-16 08:38:13,634 INFO L226 Difference]: Without dead ends: 942 [2024-11-16 08:38:13,637 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 08:38:13,638 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 583 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:13,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 143 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:13,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-16 08:38:13,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 937. [2024-11-16 08:38:13,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 935 states have (on average 1.477005347593583) internal successors, (1381), 936 states have internal predecessors, (1381), 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 08:38:13,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1381 transitions. [2024-11-16 08:38:13,680 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1381 transitions. Word has length 50 [2024-11-16 08:38:13,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:13,680 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1381 transitions. [2024-11-16 08:38:13,680 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 08:38:13,680 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1381 transitions. [2024-11-16 08:38:13,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-16 08:38:13,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:13,682 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 08:38:13,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:38:13,682 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:13,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1839033277, now seen corresponding path program 1 times [2024-11-16 08:38:13,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:13,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549344322] [2024-11-16 08:38:13,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:13,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:13,789 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 08:38:13,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:13,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549344322] [2024-11-16 08:38:13,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549344322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:13,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:13,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:38:13,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433052089] [2024-11-16 08:38:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:13,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:13,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:13,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:13,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:13,791 INFO L87 Difference]: Start difference. First operand 937 states and 1381 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 08:38:13,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:13,897 INFO L93 Difference]: Finished difference Result 1848 states and 2735 transitions. [2024-11-16 08:38:13,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:38:13,897 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 08:38:13,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:13,901 INFO L225 Difference]: With dead ends: 1848 [2024-11-16 08:38:13,901 INFO L226 Difference]: Without dead ends: 937 [2024-11-16 08:38:13,903 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 08:38:13,906 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 378 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:13,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 93 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:13,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-16 08:38:13,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2024-11-16 08:38:13,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 935 states have (on average 1.4566844919786097) internal successors, (1362), 936 states have internal predecessors, (1362), 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 08:38:13,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1362 transitions. [2024-11-16 08:38:13,925 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1362 transitions. Word has length 51 [2024-11-16 08:38:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:13,926 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1362 transitions. [2024-11-16 08:38:13,926 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 08:38:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1362 transitions. [2024-11-16 08:38:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-16 08:38:13,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:13,927 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 08:38:13,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:38:13,928 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:13,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash -2033028402, now seen corresponding path program 1 times [2024-11-16 08:38:13,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:13,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704010687] [2024-11-16 08:38:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:13,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:13,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:14,015 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 08:38:14,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:14,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704010687] [2024-11-16 08:38:14,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704010687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:14,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:14,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:38:14,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512714610] [2024-11-16 08:38:14,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:14,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:38:14,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:14,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:38:14,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:38:14,017 INFO L87 Difference]: Start difference. First operand 937 states and 1362 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 08:38:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:14,110 INFO L93 Difference]: Finished difference Result 1844 states and 2693 transitions. [2024-11-16 08:38:14,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:38:14,110 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 08:38:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:14,113 INFO L225 Difference]: With dead ends: 1844 [2024-11-16 08:38:14,114 INFO L226 Difference]: Without dead ends: 937 [2024-11-16 08:38:14,114 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 08:38:14,117 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 360 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:14,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 101 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:14,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-16 08:38:14,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2024-11-16 08:38:14,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 935 states have (on average 1.4363636363636363) internal successors, (1343), 936 states have internal predecessors, (1343), 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 08:38:14,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1343 transitions. [2024-11-16 08:38:14,139 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1343 transitions. Word has length 52 [2024-11-16 08:38:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:14,139 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1343 transitions. [2024-11-16 08:38:14,140 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 08:38:14,140 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1343 transitions. [2024-11-16 08:38:14,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:38:14,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:14,140 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 08:38:14,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:38:14,141 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:14,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:14,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1845672449, now seen corresponding path program 1 times [2024-11-16 08:38:14,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:14,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767230715] [2024-11-16 08:38:14,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:14,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:14,609 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 08:38:14,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:14,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767230715] [2024-11-16 08:38:14,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767230715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:14,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:14,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:38:14,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451530099] [2024-11-16 08:38:14,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:14,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:38:14,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:14,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:38:14,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:38:14,612 INFO L87 Difference]: Start difference. First operand 937 states and 1343 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 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 08:38:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:15,236 INFO L93 Difference]: Finished difference Result 2699 states and 3857 transitions. [2024-11-16 08:38:15,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:38:15,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 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 08:38:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:15,244 INFO L225 Difference]: With dead ends: 2699 [2024-11-16 08:38:15,244 INFO L226 Difference]: Without dead ends: 1884 [2024-11-16 08:38:15,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2024-11-16 08:38:15,247 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 867 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:15,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 724 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:38:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2024-11-16 08:38:15,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 946. [2024-11-16 08:38:15,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.4322033898305084) internal successors, (1352), 945 states have internal predecessors, (1352), 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 08:38:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1352 transitions. [2024-11-16 08:38:15,276 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1352 transitions. Word has length 53 [2024-11-16 08:38:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:15,277 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1352 transitions. [2024-11-16 08:38:15,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 13 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 08:38:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1352 transitions. [2024-11-16 08:38:15,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-16 08:38:15,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:15,278 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] [2024-11-16 08:38:15,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:38:15,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:15,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:15,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1147081975, now seen corresponding path program 1 times [2024-11-16 08:38:15,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:15,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275393184] [2024-11-16 08:38:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:15,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:15,576 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 08:38:15,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:15,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275393184] [2024-11-16 08:38:15,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275393184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:15,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:15,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:38:15,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322695510] [2024-11-16 08:38:15,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:15,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:38:15,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:38:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:38:15,579 INFO L87 Difference]: Start difference. First operand 946 states and 1352 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 08:38:15,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:15,877 INFO L93 Difference]: Finished difference Result 2618 states and 3776 transitions. [2024-11-16 08:38:15,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:38:15,878 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 08:38:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:15,883 INFO L225 Difference]: With dead ends: 2618 [2024-11-16 08:38:15,883 INFO L226 Difference]: Without dead ends: 1779 [2024-11-16 08:38:15,884 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 08:38:15,885 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 745 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:15,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 349 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:38:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2024-11-16 08:38:15,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 946. [2024-11-16 08:38:15,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 944 states have (on average 1.43114406779661) internal successors, (1351), 945 states have internal predecessors, (1351), 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 08:38:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1351 transitions. [2024-11-16 08:38:15,909 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1351 transitions. Word has length 53 [2024-11-16 08:38:15,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:15,909 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1351 transitions. [2024-11-16 08:38:15,909 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 08:38:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1351 transitions. [2024-11-16 08:38:15,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 08:38:15,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:15,910 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 08:38:15,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:38:15,910 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:15,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:15,911 INFO L85 PathProgramCache]: Analyzing trace with hash -686033134, now seen corresponding path program 1 times [2024-11-16 08:38:15,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:15,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348120969] [2024-11-16 08:38:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:15,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:16,205 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 08:38:16,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:16,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348120969] [2024-11-16 08:38:16,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348120969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:16,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:16,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:38:16,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817505748] [2024-11-16 08:38:16,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:16,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:38:16,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:16,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:38:16,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:38:16,208 INFO L87 Difference]: Start difference. First operand 946 states and 1351 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 08:38:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:16,595 INFO L93 Difference]: Finished difference Result 2663 states and 3821 transitions. [2024-11-16 08:38:16,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:38:16,595 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 08:38:16,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:16,601 INFO L225 Difference]: With dead ends: 2663 [2024-11-16 08:38:16,601 INFO L226 Difference]: Without dead ends: 1830 [2024-11-16 08:38:16,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:38:16,603 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 801 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:16,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 396 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:38:16,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2024-11-16 08:38:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 937. [2024-11-16 08:38:16,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 935 states have (on average 1.4288770053475937) internal successors, (1336), 936 states have internal predecessors, (1336), 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 08:38:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1336 transitions. [2024-11-16 08:38:16,635 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1336 transitions. Word has length 54 [2024-11-16 08:38:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:16,635 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1336 transitions. [2024-11-16 08:38:16,635 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 08:38:16,635 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1336 transitions. [2024-11-16 08:38:16,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-16 08:38:16,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:16,636 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 08:38:16,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:38:16,636 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:16,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:16,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1558881034, now seen corresponding path program 1 times [2024-11-16 08:38:16,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:16,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363417392] [2024-11-16 08:38:16,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:16,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:16,854 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 08:38:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363417392] [2024-11-16 08:38:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363417392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:16,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:16,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:38:16,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692269630] [2024-11-16 08:38:16,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:16,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:38:16,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:16,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:38:16,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:38:16,856 INFO L87 Difference]: Start difference. First operand 937 states and 1336 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 08:38:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:17,313 INFO L93 Difference]: Finished difference Result 2003 states and 2861 transitions. [2024-11-16 08:38:17,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:38:17,313 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 08:38:17,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:17,317 INFO L225 Difference]: With dead ends: 2003 [2024-11-16 08:38:17,317 INFO L226 Difference]: Without dead ends: 1155 [2024-11-16 08:38:17,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:38:17,319 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 375 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:17,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 663 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:38:17,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-11-16 08:38:17,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 937. [2024-11-16 08:38:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 935 states have (on average 1.425668449197861) internal successors, (1333), 936 states have internal predecessors, (1333), 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 08:38:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1333 transitions. [2024-11-16 08:38:17,336 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1333 transitions. Word has length 54 [2024-11-16 08:38:17,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:17,336 INFO L471 AbstractCegarLoop]: Abstraction has 937 states and 1333 transitions. [2024-11-16 08:38:17,336 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 08:38:17,336 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1333 transitions. [2024-11-16 08:38:17,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:38:17,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:17,338 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 08:38:17,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:38:17,339 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:17,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:17,339 INFO L85 PathProgramCache]: Analyzing trace with hash -386722441, now seen corresponding path program 1 times [2024-11-16 08:38:17,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:17,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168934118] [2024-11-16 08:38:17,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:17,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:17,916 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 08:38:17,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168934118] [2024-11-16 08:38:17,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168934118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:17,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:17,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:38:17,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891030688] [2024-11-16 08:38:17,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:17,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:38:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:17,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:38:17,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:38:17,918 INFO L87 Difference]: Start difference. First operand 937 states and 1333 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 08:38:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:18,641 INFO L93 Difference]: Finished difference Result 1481 states and 2122 transitions. [2024-11-16 08:38:18,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:38:18,642 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 08:38:18,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:18,646 INFO L225 Difference]: With dead ends: 1481 [2024-11-16 08:38:18,646 INFO L226 Difference]: Without dead ends: 1085 [2024-11-16 08:38:18,648 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 08:38:18,648 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 516 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:18,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1047 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:38:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2024-11-16 08:38:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 904. [2024-11-16 08:38:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 904 states, 902 states have (on average 1.4268292682926829) internal successors, (1287), 903 states have internal predecessors, (1287), 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 08:38:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1287 transitions. [2024-11-16 08:38:18,667 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1287 transitions. Word has length 55 [2024-11-16 08:38:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:18,667 INFO L471 AbstractCegarLoop]: Abstraction has 904 states and 1287 transitions. [2024-11-16 08:38:18,667 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 08:38:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1287 transitions. [2024-11-16 08:38:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:38:18,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:18,668 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 08:38:18,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:38:18,668 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:18,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1770181303, now seen corresponding path program 1 times [2024-11-16 08:38:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:18,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20357322] [2024-11-16 08:38:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:19,194 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 08:38:19,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:19,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20357322] [2024-11-16 08:38:19,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20357322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:19,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:19,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:38:19,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169723305] [2024-11-16 08:38:19,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:19,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:38:19,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:19,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:38:19,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:38:19,197 INFO L87 Difference]: Start difference. First operand 904 states and 1287 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 08:38:19,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:19,860 INFO L93 Difference]: Finished difference Result 2091 states and 3012 transitions. [2024-11-16 08:38:19,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:38:19,860 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 08:38:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:19,865 INFO L225 Difference]: With dead ends: 2091 [2024-11-16 08:38:19,865 INFO L226 Difference]: Without dead ends: 1716 [2024-11-16 08:38:19,866 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 08:38:19,867 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 584 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:19,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 1120 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:38:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-16 08:38:19,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 886. [2024-11-16 08:38:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 884 states have (on average 1.4276018099547512) internal successors, (1262), 885 states have internal predecessors, (1262), 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 08:38:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1262 transitions. [2024-11-16 08:38:19,888 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1262 transitions. Word has length 55 [2024-11-16 08:38:19,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:19,889 INFO L471 AbstractCegarLoop]: Abstraction has 886 states and 1262 transitions. [2024-11-16 08:38:19,889 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 08:38:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1262 transitions. [2024-11-16 08:38:19,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-16 08:38:19,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:19,890 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 08:38:19,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:38:19,890 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:19,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:19,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1697991943, now seen corresponding path program 1 times [2024-11-16 08:38:19,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:19,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996348220] [2024-11-16 08:38:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:19,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:20,784 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 08:38:20,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:20,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996348220] [2024-11-16 08:38:20,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996348220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:20,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:20,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-16 08:38:20,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769810033] [2024-11-16 08:38:20,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:20,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 08:38:20,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 08:38:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:38:20,786 INFO L87 Difference]: Start difference. First operand 886 states and 1262 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 08:38:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:22,339 INFO L93 Difference]: Finished difference Result 1806 states and 2588 transitions. [2024-11-16 08:38:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 08:38:22,339 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 08:38:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:22,344 INFO L225 Difference]: With dead ends: 1806 [2024-11-16 08:38:22,344 INFO L226 Difference]: Without dead ends: 1443 [2024-11-16 08:38:22,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=1085, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:38:22,348 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 533 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2904 SdHoareTripleChecker+Invalid, 1388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:22,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 2904 Invalid, 1388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 08:38:22,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2024-11-16 08:38:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 890. [2024-11-16 08:38:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 888 states have (on average 1.4256756756756757) internal successors, (1266), 889 states have internal predecessors, (1266), 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 08:38:22,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1266 transitions. [2024-11-16 08:38:22,372 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1266 transitions. Word has length 55 [2024-11-16 08:38:22,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:22,372 INFO L471 AbstractCegarLoop]: Abstraction has 890 states and 1266 transitions. [2024-11-16 08:38:22,373 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 08:38:22,373 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1266 transitions. [2024-11-16 08:38:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:38:22,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:22,381 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 08:38:22,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:38:22,381 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:22,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:22,382 INFO L85 PathProgramCache]: Analyzing trace with hash -719812304, now seen corresponding path program 1 times [2024-11-16 08:38:22,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:22,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765442821] [2024-11-16 08:38:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:22,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:23,464 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 08:38:23,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:23,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765442821] [2024-11-16 08:38:23,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765442821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:23,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:23,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-16 08:38:23,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351773387] [2024-11-16 08:38:23,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:23,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-16 08:38:23,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-16 08:38:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:38:23,469 INFO L87 Difference]: Start difference. First operand 890 states and 1266 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 08:38:24,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:24,978 INFO L93 Difference]: Finished difference Result 1610 states and 2311 transitions. [2024-11-16 08:38:24,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 08:38:24,979 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 08:38:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:24,983 INFO L225 Difference]: With dead ends: 1610 [2024-11-16 08:38:24,983 INFO L226 Difference]: Without dead ends: 1247 [2024-11-16 08:38:24,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=243, Invalid=879, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 08:38:24,984 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 651 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 651 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:24,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [651 Valid, 1961 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:38:24,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2024-11-16 08:38:24,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 886. [2024-11-16 08:38:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 884 states have (on average 1.4264705882352942) internal successors, (1261), 885 states have internal predecessors, (1261), 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 08:38:25,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1261 transitions. [2024-11-16 08:38:25,001 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1261 transitions. Word has length 56 [2024-11-16 08:38:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:25,001 INFO L471 AbstractCegarLoop]: Abstraction has 886 states and 1261 transitions. [2024-11-16 08:38:25,001 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 08:38:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1261 transitions. [2024-11-16 08:38:25,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-16 08:38:25,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:25,002 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 08:38:25,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:38:25,002 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:25,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:25,003 INFO L85 PathProgramCache]: Analyzing trace with hash -800013992, now seen corresponding path program 1 times [2024-11-16 08:38:25,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:25,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462605899] [2024-11-16 08:38:25,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:25,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:25,443 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 08:38:25,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462605899] [2024-11-16 08:38:25,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462605899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:25,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:25,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-16 08:38:25,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932960707] [2024-11-16 08:38:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:25,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 08:38:25,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:25,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 08:38:25,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:38:25,445 INFO L87 Difference]: Start difference. First operand 886 states and 1261 transitions. Second operand has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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 08:38:25,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:25,807 INFO L93 Difference]: Finished difference Result 2046 states and 2954 transitions. [2024-11-16 08:38:25,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 08:38:25,808 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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 08:38:25,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:25,812 INFO L225 Difference]: With dead ends: 2046 [2024-11-16 08:38:25,812 INFO L226 Difference]: Without dead ends: 1673 [2024-11-16 08:38:25,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-16 08:38:25,814 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 511 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:25,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 889 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2024-11-16 08:38:25,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 867. [2024-11-16 08:38:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 866 states have (on average 1.4318706697459584) internal successors, (1240), 866 states have internal predecessors, (1240), 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 08:38:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1240 transitions. [2024-11-16 08:38:25,830 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1240 transitions. Word has length 56 [2024-11-16 08:38:25,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:25,830 INFO L471 AbstractCegarLoop]: Abstraction has 867 states and 1240 transitions. [2024-11-16 08:38:25,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 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 08:38:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1240 transitions. [2024-11-16 08:38:25,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-16 08:38:25,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:25,832 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 08:38:25,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:38:25,832 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:25,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1280340822, now seen corresponding path program 1 times [2024-11-16 08:38:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257021634] [2024-11-16 08:38:25,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:25,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:25,948 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 08:38:25,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:25,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257021634] [2024-11-16 08:38:25,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257021634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:25,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:25,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:38:25,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183844807] [2024-11-16 08:38:25,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:25,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:38:25,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:25,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:38:25,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:38:25,950 INFO L87 Difference]: Start difference. First operand 867 states and 1240 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 08:38:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:26,158 INFO L93 Difference]: Finished difference Result 3175 states and 4644 transitions. [2024-11-16 08:38:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:38:26,158 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 08:38:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:26,163 INFO L225 Difference]: With dead ends: 3175 [2024-11-16 08:38:26,163 INFO L226 Difference]: Without dead ends: 2381 [2024-11-16 08:38:26,164 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 08:38:26,165 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 526 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:26,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 304 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:38:26,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2024-11-16 08:38:26,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 1839. [2024-11-16 08:38:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1839 states, 1838 states have (on average 1.4434167573449401) internal successors, (2653), 1838 states have internal predecessors, (2653), 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 08:38:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2653 transitions. [2024-11-16 08:38:26,196 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2653 transitions. Word has length 77 [2024-11-16 08:38:26,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:26,196 INFO L471 AbstractCegarLoop]: Abstraction has 1839 states and 2653 transitions. [2024-11-16 08:38:26,197 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 08:38:26,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2653 transitions. [2024-11-16 08:38:26,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:38:26,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:26,198 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 08:38:26,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:38:26,198 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:26,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash -8612649, now seen corresponding path program 1 times [2024-11-16 08:38:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:26,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440887688] [2024-11-16 08:38:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:26,305 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 08:38:26,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440887688] [2024-11-16 08:38:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440887688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:26,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:26,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:38:26,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911238556] [2024-11-16 08:38:26,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:26,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:38:26,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:26,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:38:26,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:38:26,307 INFO L87 Difference]: Start difference. First operand 1839 states and 2653 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 08:38:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:26,508 INFO L93 Difference]: Finished difference Result 6091 states and 8883 transitions. [2024-11-16 08:38:26,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:38:26,508 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 08:38:26,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:26,521 INFO L225 Difference]: With dead ends: 6091 [2024-11-16 08:38:26,522 INFO L226 Difference]: Without dead ends: 4325 [2024-11-16 08:38:26,525 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 08:38:26,525 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 642 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:26,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 233 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:26,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2024-11-16 08:38:26,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 3963. [2024-11-16 08:38:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3963 states, 3962 states have (on average 1.4464916708732962) internal successors, (5731), 3962 states have internal predecessors, (5731), 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 08:38:26,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3963 states to 3963 states and 5731 transitions. [2024-11-16 08:38:26,582 INFO L78 Accepts]: Start accepts. Automaton has 3963 states and 5731 transitions. Word has length 78 [2024-11-16 08:38:26,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:26,582 INFO L471 AbstractCegarLoop]: Abstraction has 3963 states and 5731 transitions. [2024-11-16 08:38:26,582 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 08:38:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 3963 states and 5731 transitions. [2024-11-16 08:38:26,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-16 08:38:26,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:26,583 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 08:38:26,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:38:26,584 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:26,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash -486133346, now seen corresponding path program 1 times [2024-11-16 08:38:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:26,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379746668] [2024-11-16 08:38:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:26,639 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 08:38:26,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:26,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379746668] [2024-11-16 08:38:26,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379746668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:26,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:26,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:26,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723028356] [2024-11-16 08:38:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:26,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:26,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:26,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:26,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:26,642 INFO L87 Difference]: Start difference. First operand 3963 states and 5731 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 08:38:26,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:26,695 INFO L93 Difference]: Finished difference Result 10059 states and 14497 transitions. [2024-11-16 08:38:26,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:26,696 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 08:38:26,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:26,709 INFO L225 Difference]: With dead ends: 10059 [2024-11-16 08:38:26,710 INFO L226 Difference]: Without dead ends: 6169 [2024-11-16 08:38:26,716 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 08:38:26,717 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 74 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 197 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 08:38:26,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 197 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:26,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2024-11-16 08:38:26,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 6095. [2024-11-16 08:38:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 6094 states have (on average 1.4149983590416804) internal successors, (8623), 6094 states have internal predecessors, (8623), 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 08:38:26,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 8623 transitions. [2024-11-16 08:38:26,821 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 8623 transitions. Word has length 78 [2024-11-16 08:38:26,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:26,821 INFO L471 AbstractCegarLoop]: Abstraction has 6095 states and 8623 transitions. [2024-11-16 08:38:26,821 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 08:38:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 8623 transitions. [2024-11-16 08:38:26,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-16 08:38:26,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:26,823 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 08:38:26,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:38:26,823 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:26,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:26,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1762386982, now seen corresponding path program 1 times [2024-11-16 08:38:26,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:26,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964217125] [2024-11-16 08:38:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:26,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:26,897 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 08:38:26,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:26,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964217125] [2024-11-16 08:38:26,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964217125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:26,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:26,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:26,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750014590] [2024-11-16 08:38:26,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:26,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:26,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:26,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:26,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:26,899 INFO L87 Difference]: Start difference. First operand 6095 states and 8623 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 08:38:26,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:26,933 INFO L93 Difference]: Finished difference Result 11471 states and 16197 transitions. [2024-11-16 08:38:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:26,933 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 08:38:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:26,952 INFO L225 Difference]: With dead ends: 11471 [2024-11-16 08:38:26,952 INFO L226 Difference]: Without dead ends: 5449 [2024-11-16 08:38:26,963 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 08:38:26,963 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 55 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 265 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 08:38:26,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 265 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5449 states. [2024-11-16 08:38:27,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5449 to 4365. [2024-11-16 08:38:27,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4365 states, 4364 states have (on average 1.3856553620531622) internal successors, (6047), 4364 states have internal predecessors, (6047), 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 08:38:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 6047 transitions. [2024-11-16 08:38:27,021 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 6047 transitions. Word has length 79 [2024-11-16 08:38:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:27,021 INFO L471 AbstractCegarLoop]: Abstraction has 4365 states and 6047 transitions. [2024-11-16 08:38:27,022 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 08:38:27,022 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 6047 transitions. [2024-11-16 08:38:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-16 08:38:27,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:27,023 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 08:38:27,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:38:27,023 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:27,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:27,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1475923434, now seen corresponding path program 1 times [2024-11-16 08:38:27,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:27,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82167759] [2024-11-16 08:38:27,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:27,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:27,098 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 08:38:27,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:27,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82167759] [2024-11-16 08:38:27,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82167759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:27,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:27,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:27,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292108229] [2024-11-16 08:38:27,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:27,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:27,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:27,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:27,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:27,100 INFO L87 Difference]: Start difference. First operand 4365 states and 6047 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 08:38:27,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:27,153 INFO L93 Difference]: Finished difference Result 12427 states and 17139 transitions. [2024-11-16 08:38:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:27,153 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 08:38:27,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:27,166 INFO L225 Difference]: With dead ends: 12427 [2024-11-16 08:38:27,166 INFO L226 Difference]: Without dead ends: 8135 [2024-11-16 08:38:27,171 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 08:38:27,172 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 48 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 266 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 08:38:27,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 266 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8135 states. [2024-11-16 08:38:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8135 to 7449. [2024-11-16 08:38:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7449 states, 7448 states have (on average 1.3690923737916219) internal successors, (10197), 7448 states have internal predecessors, (10197), 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 08:38:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7449 states to 7449 states and 10197 transitions. [2024-11-16 08:38:27,260 INFO L78 Accepts]: Start accepts. Automaton has 7449 states and 10197 transitions. Word has length 80 [2024-11-16 08:38:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:27,260 INFO L471 AbstractCegarLoop]: Abstraction has 7449 states and 10197 transitions. [2024-11-16 08:38:27,261 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 08:38:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7449 states and 10197 transitions. [2024-11-16 08:38:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:38:27,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:27,262 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 08:38:27,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:38:27,262 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:27,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:27,262 INFO L85 PathProgramCache]: Analyzing trace with hash -303450535, now seen corresponding path program 1 times [2024-11-16 08:38:27,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:27,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780299968] [2024-11-16 08:38:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:27,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:27,449 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 08:38:27,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:27,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780299968] [2024-11-16 08:38:27,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780299968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:27,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:27,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:38:27,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805100962] [2024-11-16 08:38:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:27,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:38:27,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:27,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:38:27,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:38:27,452 INFO L87 Difference]: Start difference. First operand 7449 states and 10197 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 08:38:27,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:27,488 INFO L93 Difference]: Finished difference Result 7883 states and 10726 transitions. [2024-11-16 08:38:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:38:27,489 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 08:38:27,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:27,503 INFO L225 Difference]: With dead ends: 7883 [2024-11-16 08:38:27,503 INFO L226 Difference]: Without dead ends: 7881 [2024-11-16 08:38:27,507 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 08:38:27,507 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 609 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 08:38:27,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 609 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:27,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2024-11-16 08:38:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7881. [2024-11-16 08:38:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7881 states, 7880 states have (on average 1.341243654822335) internal successors, (10569), 7880 states have internal predecessors, (10569), 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 08:38:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7881 states to 7881 states and 10569 transitions. [2024-11-16 08:38:27,638 INFO L78 Accepts]: Start accepts. Automaton has 7881 states and 10569 transitions. Word has length 81 [2024-11-16 08:38:27,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:27,639 INFO L471 AbstractCegarLoop]: Abstraction has 7881 states and 10569 transitions. [2024-11-16 08:38:27,639 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 08:38:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 7881 states and 10569 transitions. [2024-11-16 08:38:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-16 08:38:27,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:27,640 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 08:38:27,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:38:27,640 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:27,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:27,640 INFO L85 PathProgramCache]: Analyzing trace with hash -240398425, now seen corresponding path program 1 times [2024-11-16 08:38:27,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:27,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728193487] [2024-11-16 08:38:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:27,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:27,736 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 08:38:27,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:27,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728193487] [2024-11-16 08:38:27,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728193487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:27,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:27,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:38:27,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34121011] [2024-11-16 08:38:27,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:27,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:38:27,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:27,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:38:27,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:38:27,738 INFO L87 Difference]: Start difference. First operand 7881 states and 10569 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 08:38:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:27,921 INFO L93 Difference]: Finished difference Result 16303 states and 21889 transitions. [2024-11-16 08:38:27,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:38:27,922 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 08:38:27,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:27,933 INFO L225 Difference]: With dead ends: 16303 [2024-11-16 08:38:27,933 INFO L226 Difference]: Without dead ends: 8495 [2024-11-16 08:38:27,941 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 08:38:27,943 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 504 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:27,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 266 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:38:27,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8495 states. [2024-11-16 08:38:28,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8495 to 7827. [2024-11-16 08:38:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7827 states, 7826 states have (on average 1.3297981088678763) internal successors, (10407), 7826 states have internal predecessors, (10407), 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 08:38:28,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7827 states to 7827 states and 10407 transitions. [2024-11-16 08:38:28,034 INFO L78 Accepts]: Start accepts. Automaton has 7827 states and 10407 transitions. Word has length 81 [2024-11-16 08:38:28,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:28,034 INFO L471 AbstractCegarLoop]: Abstraction has 7827 states and 10407 transitions. [2024-11-16 08:38:28,034 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 08:38:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 7827 states and 10407 transitions. [2024-11-16 08:38:28,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-16 08:38:28,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:28,035 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 08:38:28,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:38:28,036 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:28,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:28,036 INFO L85 PathProgramCache]: Analyzing trace with hash 175538008, now seen corresponding path program 1 times [2024-11-16 08:38:28,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:28,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970644025] [2024-11-16 08:38:28,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:28,134 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 08:38:28,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:28,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970644025] [2024-11-16 08:38:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970644025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:28,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:28,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:28,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18268526] [2024-11-16 08:38:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:28,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:28,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:28,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:28,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:28,135 INFO L87 Difference]: Start difference. First operand 7827 states and 10407 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 08:38:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:28,180 INFO L93 Difference]: Finished difference Result 16865 states and 22413 transitions. [2024-11-16 08:38:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:28,181 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 08:38:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:28,194 INFO L225 Difference]: With dead ends: 16865 [2024-11-16 08:38:28,194 INFO L226 Difference]: Without dead ends: 9111 [2024-11-16 08:38:28,203 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 08:38:28,204 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 59 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 272 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 08:38:28,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 272 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9111 states. [2024-11-16 08:38:28,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9111 to 8821. [2024-11-16 08:38:28,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8821 states, 8820 states have (on average 1.3087301587301587) internal successors, (11543), 8820 states have internal predecessors, (11543), 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 08:38:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8821 states to 8821 states and 11543 transitions. [2024-11-16 08:38:28,303 INFO L78 Accepts]: Start accepts. Automaton has 8821 states and 11543 transitions. Word has length 82 [2024-11-16 08:38:28,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:28,303 INFO L471 AbstractCegarLoop]: Abstraction has 8821 states and 11543 transitions. [2024-11-16 08:38:28,303 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 08:38:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 8821 states and 11543 transitions. [2024-11-16 08:38:28,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:38:28,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:28,305 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 08:38:28,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:38:28,306 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:28,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:28,306 INFO L85 PathProgramCache]: Analyzing trace with hash 500866191, now seen corresponding path program 1 times [2024-11-16 08:38:28,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:28,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318314128] [2024-11-16 08:38:28,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:28,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:28,386 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 08:38:28,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:28,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318314128] [2024-11-16 08:38:28,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318314128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:38:28,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:38:28,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:38:28,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928544672] [2024-11-16 08:38:28,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:38:28,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:38:28,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:28,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:38:28,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:38:28,389 INFO L87 Difference]: Start difference. First operand 8821 states and 11543 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 08:38:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:28,434 INFO L93 Difference]: Finished difference Result 16923 states and 21965 transitions. [2024-11-16 08:38:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:38:28,434 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 08:38:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:28,445 INFO L225 Difference]: With dead ends: 16923 [2024-11-16 08:38:28,446 INFO L226 Difference]: Without dead ends: 8175 [2024-11-16 08:38:28,454 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 08:38:28,455 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 55 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 239 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 08:38:28,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 239 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:38:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8175 states. [2024-11-16 08:38:28,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8175 to 8173. [2024-11-16 08:38:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8173 states, 8172 states have (on average 1.267131669114048) internal successors, (10355), 8172 states have internal predecessors, (10355), 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 08:38:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8173 states to 8173 states and 10355 transitions. [2024-11-16 08:38:28,587 INFO L78 Accepts]: Start accepts. Automaton has 8173 states and 10355 transitions. Word has length 103 [2024-11-16 08:38:28,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:28,588 INFO L471 AbstractCegarLoop]: Abstraction has 8173 states and 10355 transitions. [2024-11-16 08:38:28,588 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 08:38:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8173 states and 10355 transitions. [2024-11-16 08:38:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:38:28,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:28,590 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 08:38:28,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:38:28,591 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:28,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:28,591 INFO L85 PathProgramCache]: Analyzing trace with hash -974392070, now seen corresponding path program 1 times [2024-11-16 08:38:28,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:28,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534115962] [2024-11-16 08:38:28,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:28,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:29,203 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 08:38:29,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:29,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534115962] [2024-11-16 08:38:29,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534115962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:38:29,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542219102] [2024-11-16 08:38:29,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:29,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:38:29,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:38:29,206 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 08:38:29,207 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 08:38:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:29,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 08:38:29,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:38:30,238 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 08:38:30,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:38:31,693 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 08:38:31,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542219102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:38:31,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:38:31,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 37 [2024-11-16 08:38:31,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919944539] [2024-11-16 08:38:31,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:38:31,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-16 08:38:31,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:31,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-16 08:38:31,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1210, Unknown=0, NotChecked=0, Total=1332 [2024-11-16 08:38:31,695 INFO L87 Difference]: Start difference. First operand 8173 states and 10355 transitions. Second operand has 37 states, 37 states have (on average 8.054054054054054) internal successors, (298), 37 states have internal predecessors, (298), 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 08:38:50,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:50,927 INFO L93 Difference]: Finished difference Result 136095 states and 173603 transitions. [2024-11-16 08:38:50,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 344 states. [2024-11-16 08:38:50,928 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 8.054054054054054) internal successors, (298), 37 states have internal predecessors, (298), 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 104 [2024-11-16 08:38:50,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:51,193 INFO L225 Difference]: With dead ends: 136095 [2024-11-16 08:38:51,193 INFO L226 Difference]: Without dead ends: 127995 [2024-11-16 08:38:51,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 377 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60103 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=15147, Invalid=128115, Unknown=0, NotChecked=0, Total=143262 [2024-11-16 08:38:51,246 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 6628 mSDsluCounter, 3849 mSDsCounter, 0 mSdLazyCounter, 5678 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6628 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 5896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 5678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:51,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6628 Valid, 4050 Invalid, 5896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 5678 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-16 08:38:51,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127995 states. [2024-11-16 08:38:52,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127995 to 63031. [2024-11-16 08:38:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63031 states, 63030 states have (on average 1.270077740758369) internal successors, (80053), 63030 states have internal predecessors, (80053), 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 08:38:52,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63031 states to 63031 states and 80053 transitions. [2024-11-16 08:38:52,885 INFO L78 Accepts]: Start accepts. Automaton has 63031 states and 80053 transitions. Word has length 104 [2024-11-16 08:38:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:38:52,886 INFO L471 AbstractCegarLoop]: Abstraction has 63031 states and 80053 transitions. [2024-11-16 08:38:52,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.054054054054054) internal successors, (298), 37 states have internal predecessors, (298), 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 08:38:52,886 INFO L276 IsEmpty]: Start isEmpty. Operand 63031 states and 80053 transitions. [2024-11-16 08:38:52,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 08:38:52,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:38:52,900 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 08:38:52,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 08:38:53,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-16 08:38:53,102 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:38:53,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:38:53,102 INFO L85 PathProgramCache]: Analyzing trace with hash 672673210, now seen corresponding path program 1 times [2024-11-16 08:38:53,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:38:53,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278757477] [2024-11-16 08:38:53,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:53,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:38:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:53,927 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 08:38:53,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:38:53,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278757477] [2024-11-16 08:38:53,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278757477] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:38:53,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610080117] [2024-11-16 08:38:53,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:38:53,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:38:53,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:38:53,930 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:38:53,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 08:38:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:38:54,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 08:38:54,087 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:38:54,798 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 08:38:54,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:38:55,837 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 08:38:55,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610080117] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:38:55,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:38:55,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 11] total 30 [2024-11-16 08:38:55,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354401104] [2024-11-16 08:38:55,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:38:55,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-16 08:38:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:38:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-16 08:38:55,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2024-11-16 08:38:55,841 INFO L87 Difference]: Start difference. First operand 63031 states and 80053 transitions. Second operand has 31 states, 31 states have (on average 8.258064516129032) internal successors, (256), 30 states have internal predecessors, (256), 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 08:38:58,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:38:58,495 INFO L93 Difference]: Finished difference Result 199735 states and 252603 transitions. [2024-11-16 08:38:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-16 08:38:58,496 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 8.258064516129032) internal successors, (256), 30 states have internal predecessors, (256), 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 104 [2024-11-16 08:38:58,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:38:58,705 INFO L225 Difference]: With dead ends: 199735 [2024-11-16 08:38:58,705 INFO L226 Difference]: Without dead ends: 157963 [2024-11-16 08:38:58,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=927, Invalid=3495, Unknown=0, NotChecked=0, Total=4422 [2024-11-16 08:38:58,754 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 1232 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 2524 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:38:58,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 1834 Invalid, 2551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2524 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 08:38:58,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157963 states. [2024-11-16 08:39:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157963 to 106393. [2024-11-16 08:39:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106393 states, 106392 states have (on average 1.264925934280773) internal successors, (134578), 106392 states have internal predecessors, (134578), 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 08:39:00,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106393 states to 106393 states and 134578 transitions. [2024-11-16 08:39:00,685 INFO L78 Accepts]: Start accepts. Automaton has 106393 states and 134578 transitions. Word has length 104 [2024-11-16 08:39:00,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:39:00,686 INFO L471 AbstractCegarLoop]: Abstraction has 106393 states and 134578 transitions. [2024-11-16 08:39:00,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 8.258064516129032) internal successors, (256), 30 states have internal predecessors, (256), 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 08:39:00,686 INFO L276 IsEmpty]: Start isEmpty. Operand 106393 states and 134578 transitions. [2024-11-16 08:39:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-16 08:39:00,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:39:00,697 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, 1] [2024-11-16 08:39:00,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 08:39:00,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-16 08:39:00,898 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:39:00,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:39:00,899 INFO L85 PathProgramCache]: Analyzing trace with hash -250392641, now seen corresponding path program 1 times [2024-11-16 08:39:00,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:39:00,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297257586] [2024-11-16 08:39:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:00,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:39:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:39:01,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:39:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297257586] [2024-11-16 08:39:01,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297257586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:39:01,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945902376] [2024-11-16 08:39:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:39:01,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:39:01,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:39:01,623 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:39:01,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 08:39:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:39:01,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-16 08:39:01,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:39:03,276 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 08:39:03,276 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:39:04,799 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 08:39:04,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945902376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:39:04,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:39:04,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 19, 18] total 44 [2024-11-16 08:39:04,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765760263] [2024-11-16 08:39:04,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:39:04,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-16 08:39:04,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:39:04,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-16 08:39:04,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1667, Unknown=0, NotChecked=0, Total=1892 [2024-11-16 08:39:04,801 INFO L87 Difference]: Start difference. First operand 106393 states and 134578 transitions. Second operand has 44 states, 44 states have (on average 6.454545454545454) internal successors, (284), 44 states have internal predecessors, (284), 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 08:39:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:39:19,408 INFO L93 Difference]: Finished difference Result 554281 states and 699773 transitions. [2024-11-16 08:39:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-16 08:39:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 6.454545454545454) internal successors, (284), 44 states have internal predecessors, (284), 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 105 [2024-11-16 08:39:19,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:39:20,068 INFO L225 Difference]: With dead ends: 554281 [2024-11-16 08:39:20,068 INFO L226 Difference]: Without dead ends: 470427 [2024-11-16 08:39:20,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 241 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22230 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=6989, Invalid=51817, Unknown=0, NotChecked=0, Total=58806 [2024-11-16 08:39:20,561 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 6810 mSDsluCounter, 4767 mSDsCounter, 0 mSdLazyCounter, 5165 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6810 SdHoareTripleChecker+Valid, 4896 SdHoareTripleChecker+Invalid, 5313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 5165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:39:20,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6810 Valid, 4896 Invalid, 5313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 5165 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-16 08:39:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470427 states.