./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.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.4.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 e328965cea0bb66eb9fefef2406463fafd513fe2a95976e689a71eb96c010564 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 08:40:31,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 08:40:31,634 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 08:40:31,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 08:40:31,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 08:40:31,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 08:40:31,671 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 08:40:31,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 08:40:31,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 08:40:31,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 08:40:31,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 08:40:31,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 08:40:31,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 08:40:31,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 08:40:31,674 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 08:40:31,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 08:40:31,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 08:40:31,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 08:40:31,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 08:40:31,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 08:40:31,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 08:40:31,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 08:40:31,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 08:40:31,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 08:40:31,682 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 08:40:31,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 08:40:31,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 08:40:31,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 08:40:31,683 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 08:40:31,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 08:40:31,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 08:40:31,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 08:40:31,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:40:31,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 08:40:31,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 08:40:31,685 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 08:40:31,686 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 08:40:31,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 08:40:31,686 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 08:40:31,686 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 08:40:31,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 08:40:31,687 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 08:40:31,687 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e328965cea0bb66eb9fefef2406463fafd513fe2a95976e689a71eb96c010564 [2024-11-16 08:40:31,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 08:40:31,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 08:40:31,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 08:40:31,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 08:40:31,947 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 08:40:31,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:40:33,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 08:40:33,644 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 08:40:33,645 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:40:33,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589d0f552/9d4ee596711340ce8b0e4127fa9414a7/FLAG1b8091774 [2024-11-16 08:40:34,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/589d0f552/9d4ee596711340ce8b0e4127fa9414a7 [2024-11-16 08:40:34,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 08:40:34,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 08:40:34,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 08:40:34,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 08:40:34,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 08:40:34,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c74092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34, skipping insertion in model container [2024-11-16 08:40:34,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 08:40:34,324 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.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6636,6649] [2024-11-16 08:40:34,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:40:34,401 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 08:40:34,446 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[6636,6649] [2024-11-16 08:40:34,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 08:40:34,487 INFO L204 MainTranslator]: Completed translation [2024-11-16 08:40:34,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34 WrapperNode [2024-11-16 08:40:34,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 08:40:34,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 08:40:34,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 08:40:34,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 08:40:34,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,552 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 559 [2024-11-16 08:40:34,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 08:40:34,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 08:40:34,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 08:40:34,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 08:40:34,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,592 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 08:40:34,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,601 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 08:40:34,610 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 08:40:34,610 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 08:40:34,610 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 08:40:34,611 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (1/1) ... [2024-11-16 08:40:34,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 08:40:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:40:34,666 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 08:40:34,669 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 08:40:34,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 08:40:34,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 08:40:34,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 08:40:34,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 08:40:34,835 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 08:40:34,837 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 08:40:35,328 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L452: havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node4__m4~2#1; [2024-11-16 08:40:35,329 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L358: havoc main_~node1__m1~2#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~node4__m4~1#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_~node4____CPAchecker_TMP_0~0#1;havoc main_~node4__m4~0#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 08:40:35,329 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L393: havoc main_~node3__m3~2#1; [2024-11-16 08:40:35,330 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: havoc main_~node2____CPAchecker_TMP_0~1#1; [2024-11-16 08:40:35,330 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L592: havoc main_~node1____CPAchecker_TMP_0~1#1; [2024-11-16 08:40:35,330 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L378: havoc main_~node2__m2~2#1; [2024-11-16 08:40:35,330 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L497: havoc main_~node3____CPAchecker_TMP_0~1#1; [2024-11-16 08:40:35,362 INFO L? ?]: Removed 68 outVars from TransFormulas that were not future-live. [2024-11-16 08:40:35,363 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 08:40:35,383 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 08:40:35,383 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 08:40:35,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:40:35 BoogieIcfgContainer [2024-11-16 08:40:35,386 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 08:40:35,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 08:40:35,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 08:40:35,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 08:40:35,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:40:34" (1/3) ... [2024-11-16 08:40:35,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2806bde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:40:35, skipping insertion in model container [2024-11-16 08:40:35,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:40:34" (2/3) ... [2024-11-16 08:40:35,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2806bde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:40:35, skipping insertion in model container [2024-11-16 08:40:35,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 08:40:35" (3/3) ... [2024-11-16 08:40:35,398 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-16 08:40:35,414 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 08:40:35,415 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 08:40:35,476 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 08:40:35,485 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;@3480487c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 08:40:35,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 08:40:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 0 states have call successors, (0), 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 08:40:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-16 08:40:35,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:35,504 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] [2024-11-16 08:40:35,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:35,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -123428666, now seen corresponding path program 1 times [2024-11-16 08:40:35,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:35,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849513416] [2024-11-16 08:40:35,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:35,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:36,157 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 08:40:36,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:36,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849513416] [2024-11-16 08:40:36,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849513416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:36,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:36,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:36,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350296307] [2024-11-16 08:40:36,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:36,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:40:36,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:36,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:40:36,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:40:36,196 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 0 states have call successors, (0), 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 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 08:40:36,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:36,594 INFO L93 Difference]: Finished difference Result 616 states and 971 transitions. [2024-11-16 08:40:36,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:40:36,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-16 08:40:36,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:36,639 INFO L225 Difference]: With dead ends: 616 [2024-11-16 08:40:36,643 INFO L226 Difference]: Without dead ends: 542 [2024-11-16 08:40:36,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-16 08:40:36,652 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 840 mSDsluCounter, 1472 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1969 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:36,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1969 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:36,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-16 08:40:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 192. [2024-11-16 08:40:36,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 1.4450261780104712) internal successors, (276), 191 states have internal predecessors, (276), 0 states have call successors, (0), 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 08:40:36,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 276 transitions. [2024-11-16 08:40:36,721 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 276 transitions. Word has length 61 [2024-11-16 08:40:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:36,722 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 276 transitions. [2024-11-16 08:40:36,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 0 states have call successors, (0), 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 08:40:36,722 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 276 transitions. [2024-11-16 08:40:36,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:40:36,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:36,724 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] [2024-11-16 08:40:36,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 08:40:36,725 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:36,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash -918954486, now seen corresponding path program 1 times [2024-11-16 08:40:36,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:36,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389207517] [2024-11-16 08:40:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:36,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:36,938 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 08:40:36,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:36,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389207517] [2024-11-16 08:40:36,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389207517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:36,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:36,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:36,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510700095] [2024-11-16 08:40:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:36,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:40:36,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:36,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:40:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:40:36,944 INFO L87 Difference]: Start difference. First operand 192 states and 276 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:37,097 INFO L93 Difference]: Finished difference Result 697 states and 1054 transitions. [2024-11-16 08:40:37,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:40:37,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-16 08:40:37,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:37,102 INFO L225 Difference]: With dead ends: 697 [2024-11-16 08:40:37,102 INFO L226 Difference]: Without dead ends: 589 [2024-11-16 08:40:37,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:40:37,109 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 545 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:37,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1168 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:37,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2024-11-16 08:40:37,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 309. [2024-11-16 08:40:37,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.4870129870129871) internal successors, (458), 308 states have internal predecessors, (458), 0 states have call successors, (0), 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 08:40:37,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 458 transitions. [2024-11-16 08:40:37,137 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 458 transitions. Word has length 63 [2024-11-16 08:40:37,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:37,138 INFO L471 AbstractCegarLoop]: Abstraction has 309 states and 458 transitions. [2024-11-16 08:40:37,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:37,138 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 458 transitions. [2024-11-16 08:40:37,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:40:37,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:37,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:37,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 08:40:37,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:37,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:37,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1160097794, now seen corresponding path program 1 times [2024-11-16 08:40:37,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:37,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022680795] [2024-11-16 08:40:37,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:37,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:37,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:37,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:37,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022680795] [2024-11-16 08:40:37,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022680795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:37,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:37,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:37,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878092453] [2024-11-16 08:40:37,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:37,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:40:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:40:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:40:37,311 INFO L87 Difference]: Start difference. First operand 309 states and 458 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:37,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:37,478 INFO L93 Difference]: Finished difference Result 814 states and 1236 transitions. [2024-11-16 08:40:37,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:40:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-16 08:40:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:37,483 INFO L225 Difference]: With dead ends: 814 [2024-11-16 08:40:37,483 INFO L226 Difference]: Without dead ends: 706 [2024-11-16 08:40:37,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:40:37,489 INFO L432 NwaCegarLoop]: 400 mSDtfsCounter, 536 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:37,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1117 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-11-16 08:40:37,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 479. [2024-11-16 08:40:37,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 478 states have (on average 1.5104602510460252) internal successors, (722), 478 states have internal predecessors, (722), 0 states have call successors, (0), 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 08:40:37,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 722 transitions. [2024-11-16 08:40:37,520 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 722 transitions. Word has length 63 [2024-11-16 08:40:37,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:37,521 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 722 transitions. [2024-11-16 08:40:37,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:37,521 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 722 transitions. [2024-11-16 08:40:37,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:40:37,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:37,523 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] [2024-11-16 08:40:37,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 08:40:37,523 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:37,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:37,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1832656630, now seen corresponding path program 1 times [2024-11-16 08:40:37,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:37,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693086029] [2024-11-16 08:40:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:37,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:37,723 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 08:40:37,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:37,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693086029] [2024-11-16 08:40:37,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693086029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:37,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:37,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:37,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505241932] [2024-11-16 08:40:37,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:37,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:40:37,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:37,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:40:37,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:40:37,726 INFO L87 Difference]: Start difference. First operand 479 states and 722 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:37,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:37,850 INFO L93 Difference]: Finished difference Result 926 states and 1410 transitions. [2024-11-16 08:40:37,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:40:37,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-16 08:40:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:37,854 INFO L225 Difference]: With dead ends: 926 [2024-11-16 08:40:37,855 INFO L226 Difference]: Without dead ends: 818 [2024-11-16 08:40:37,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:40:37,856 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 611 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 984 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:37,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 984 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:37,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-16 08:40:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 591. [2024-11-16 08:40:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 590 states have (on average 1.5186440677966102) internal successors, (896), 590 states have internal predecessors, (896), 0 states have call successors, (0), 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 08:40:37,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 896 transitions. [2024-11-16 08:40:37,870 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 896 transitions. Word has length 63 [2024-11-16 08:40:37,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:37,871 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 896 transitions. [2024-11-16 08:40:37,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:37,871 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 896 transitions. [2024-11-16 08:40:37,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-16 08:40:37,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:37,873 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] [2024-11-16 08:40:37,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 08:40:37,873 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:37,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:37,874 INFO L85 PathProgramCache]: Analyzing trace with hash 412257538, now seen corresponding path program 1 times [2024-11-16 08:40:37,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:37,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475180374] [2024-11-16 08:40:37,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:37,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:38,048 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 08:40:38,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:38,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475180374] [2024-11-16 08:40:38,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475180374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:38,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:38,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:38,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536315238] [2024-11-16 08:40:38,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:38,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:40:38,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:38,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:40:38,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:40:38,053 INFO L87 Difference]: Start difference. First operand 591 states and 896 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:38,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:38,165 INFO L93 Difference]: Finished difference Result 1033 states and 1576 transitions. [2024-11-16 08:40:38,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:40:38,165 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-16 08:40:38,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:38,169 INFO L225 Difference]: With dead ends: 1033 [2024-11-16 08:40:38,169 INFO L226 Difference]: Without dead ends: 925 [2024-11-16 08:40:38,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:40:38,172 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 685 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:38,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 971 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:38,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-16 08:40:38,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 698. [2024-11-16 08:40:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.5236728837876614) internal successors, (1062), 697 states have internal predecessors, (1062), 0 states have call successors, (0), 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 08:40:38,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1062 transitions. [2024-11-16 08:40:38,189 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1062 transitions. Word has length 63 [2024-11-16 08:40:38,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:38,190 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1062 transitions. [2024-11-16 08:40:38,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 08:40:38,191 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1062 transitions. [2024-11-16 08:40:38,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 08:40:38,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:38,192 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] [2024-11-16 08:40:38,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 08:40:38,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:38,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash 761814292, now seen corresponding path program 1 times [2024-11-16 08:40:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:38,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791753738] [2024-11-16 08:40:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:38,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:38,429 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 08:40:38,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:38,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791753738] [2024-11-16 08:40:38,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791753738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:38,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:38,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:38,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183592211] [2024-11-16 08:40:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:38,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 08:40:38,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:38,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 08:40:38,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 08:40:38,431 INFO L87 Difference]: Start difference. First operand 698 states and 1062 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 08:40:38,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:38,562 INFO L93 Difference]: Finished difference Result 1285 states and 1972 transitions. [2024-11-16 08:40:38,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 08:40:38,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-16 08:40:38,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:38,565 INFO L225 Difference]: With dead ends: 1285 [2024-11-16 08:40:38,565 INFO L226 Difference]: Without dead ends: 700 [2024-11-16 08:40:38,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-16 08:40:38,571 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 408 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:38,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 542 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:38,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-16 08:40:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 698. [2024-11-16 08:40:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.51506456241033) internal successors, (1056), 697 states have internal predecessors, (1056), 0 states have call successors, (0), 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 08:40:38,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1056 transitions. [2024-11-16 08:40:38,610 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1056 transitions. Word has length 64 [2024-11-16 08:40:38,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:38,611 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1056 transitions. [2024-11-16 08:40:38,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 08:40:38,611 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1056 transitions. [2024-11-16 08:40:38,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 08:40:38,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:38,613 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] [2024-11-16 08:40:38,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 08:40:38,614 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:38,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:38,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1163963462, now seen corresponding path program 1 times [2024-11-16 08:40:38,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:38,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331056246] [2024-11-16 08:40:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:38,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:38,760 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 08:40:38,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:38,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331056246] [2024-11-16 08:40:38,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331056246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:38,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:38,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:40:38,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800215364] [2024-11-16 08:40:38,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:38,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:40:38,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:38,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:40:38,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:38,764 INFO L87 Difference]: Start difference. First operand 698 states and 1056 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 08:40:38,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:38,888 INFO L93 Difference]: Finished difference Result 1367 states and 2082 transitions. [2024-11-16 08:40:38,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:40:38,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-16 08:40:38,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:38,891 INFO L225 Difference]: With dead ends: 1367 [2024-11-16 08:40:38,891 INFO L226 Difference]: Without dead ends: 698 [2024-11-16 08:40:38,892 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 08:40:38,896 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 464 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:38,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 94 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:38,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-16 08:40:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2024-11-16 08:40:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.497847919655667) internal successors, (1044), 697 states have internal predecessors, (1044), 0 states have call successors, (0), 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 08:40:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1044 transitions. [2024-11-16 08:40:38,910 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1044 transitions. Word has length 65 [2024-11-16 08:40:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:38,910 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1044 transitions. [2024-11-16 08:40:38,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 08:40:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1044 transitions. [2024-11-16 08:40:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 08:40:38,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:38,913 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] [2024-11-16 08:40:38,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 08:40:38,914 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:38,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:38,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1647762382, now seen corresponding path program 1 times [2024-11-16 08:40:38,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:38,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605186128] [2024-11-16 08:40:38,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:38,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:39,015 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 08:40:39,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:39,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605186128] [2024-11-16 08:40:39,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605186128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:39,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:39,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:40:39,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505074244] [2024-11-16 08:40:39,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:39,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:40:39,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:39,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:40:39,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:39,018 INFO L87 Difference]: Start difference. First operand 698 states and 1044 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 08:40:39,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:39,122 INFO L93 Difference]: Finished difference Result 1355 states and 2044 transitions. [2024-11-16 08:40:39,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:40:39,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-16 08:40:39,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:39,125 INFO L225 Difference]: With dead ends: 1355 [2024-11-16 08:40:39,125 INFO L226 Difference]: Without dead ends: 698 [2024-11-16 08:40:39,126 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 08:40:39,127 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 424 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:39,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 118 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:39,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-16 08:40:39,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2024-11-16 08:40:39,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.4806312769010044) internal successors, (1032), 697 states have internal predecessors, (1032), 0 states have call successors, (0), 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 08:40:39,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1032 transitions. [2024-11-16 08:40:39,141 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1032 transitions. Word has length 66 [2024-11-16 08:40:39,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:39,142 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1032 transitions. [2024-11-16 08:40:39,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 08:40:39,142 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1032 transitions. [2024-11-16 08:40:39,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 08:40:39,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:39,145 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] [2024-11-16 08:40:39,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 08:40:39,145 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:39,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:39,146 INFO L85 PathProgramCache]: Analyzing trace with hash 883986850, now seen corresponding path program 1 times [2024-11-16 08:40:39,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:39,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536831136] [2024-11-16 08:40:39,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:39,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:39,251 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 08:40:39,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:39,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536831136] [2024-11-16 08:40:39,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536831136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:39,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:39,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:40:39,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802418707] [2024-11-16 08:40:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:39,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:40:39,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:39,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:40:39,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:39,257 INFO L87 Difference]: Start difference. First operand 698 states and 1032 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 08:40:39,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:39,377 INFO L93 Difference]: Finished difference Result 1363 states and 2030 transitions. [2024-11-16 08:40:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:40:39,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-16 08:40:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:39,381 INFO L225 Difference]: With dead ends: 1363 [2024-11-16 08:40:39,381 INFO L226 Difference]: Without dead ends: 698 [2024-11-16 08:40:39,385 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 08:40:39,385 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 440 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:39,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 102 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:39,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-16 08:40:39,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2024-11-16 08:40:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.4634146341463414) internal successors, (1020), 697 states have internal predecessors, (1020), 0 states have call successors, (0), 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 08:40:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1020 transitions. [2024-11-16 08:40:39,401 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1020 transitions. Word has length 67 [2024-11-16 08:40:39,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:39,401 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1020 transitions. [2024-11-16 08:40:39,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 08:40:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1020 transitions. [2024-11-16 08:40:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 08:40:39,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:39,402 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] [2024-11-16 08:40:39,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 08:40:39,402 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:39,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash 969544882, now seen corresponding path program 1 times [2024-11-16 08:40:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213402594] [2024-11-16 08:40:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:39,518 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 08:40:39,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213402594] [2024-11-16 08:40:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213402594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:39,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:39,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:40:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979617056] [2024-11-16 08:40:39,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:39,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:40:39,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:39,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:40:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:39,522 INFO L87 Difference]: Start difference. First operand 698 states and 1020 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 08:40:39,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:39,624 INFO L93 Difference]: Finished difference Result 1359 states and 2002 transitions. [2024-11-16 08:40:39,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:40:39,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-16 08:40:39,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:39,627 INFO L225 Difference]: With dead ends: 1359 [2024-11-16 08:40:39,627 INFO L226 Difference]: Without dead ends: 698 [2024-11-16 08:40:39,628 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 08:40:39,629 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 422 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:39,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 110 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:39,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-16 08:40:39,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2024-11-16 08:40:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.4461979913916787) internal successors, (1008), 697 states have internal predecessors, (1008), 0 states have call successors, (0), 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 08:40:39,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1008 transitions. [2024-11-16 08:40:39,641 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1008 transitions. Word has length 68 [2024-11-16 08:40:39,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:39,642 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1008 transitions. [2024-11-16 08:40:39,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 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 08:40:39,642 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1008 transitions. [2024-11-16 08:40:39,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:40:39,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:39,643 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] [2024-11-16 08:40:39,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 08:40:39,643 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:39,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:39,644 INFO L85 PathProgramCache]: Analyzing trace with hash 279572478, now seen corresponding path program 1 times [2024-11-16 08:40:39,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:39,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931742773] [2024-11-16 08:40:39,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:39,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:39,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:39,941 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 08:40:39,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:39,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931742773] [2024-11-16 08:40:39,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931742773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:39,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:39,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:40:39,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950035471] [2024-11-16 08:40:39,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:39,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:40:39,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:39,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:40:39,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:40:39,943 INFO L87 Difference]: Start difference. First operand 698 states and 1008 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 08:40:40,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:40,362 INFO L93 Difference]: Finished difference Result 1950 states and 2838 transitions. [2024-11-16 08:40:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:40:40,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-16 08:40:40,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:40,367 INFO L225 Difference]: With dead ends: 1950 [2024-11-16 08:40:40,367 INFO L226 Difference]: Without dead ends: 1340 [2024-11-16 08:40:40,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:40:40,371 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 907 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:40,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 430 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:40:40,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-16 08:40:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 698. [2024-11-16 08:40:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.4404591104734576) internal successors, (1004), 697 states have internal predecessors, (1004), 0 states have call successors, (0), 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 08:40:40,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1004 transitions. [2024-11-16 08:40:40,391 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1004 transitions. Word has length 69 [2024-11-16 08:40:40,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:40,391 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1004 transitions. [2024-11-16 08:40:40,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 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 08:40:40,392 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1004 transitions. [2024-11-16 08:40:40,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:40:40,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:40,393 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] [2024-11-16 08:40:40,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 08:40:40,393 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:40,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:40,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1581785350, now seen corresponding path program 1 times [2024-11-16 08:40:40,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:40,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089422236] [2024-11-16 08:40:40,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:40,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:40,870 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 08:40:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:40,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089422236] [2024-11-16 08:40:40,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089422236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:40,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:40,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:40:40,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025861115] [2024-11-16 08:40:40,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:40,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 08:40:40,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:40,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 08:40:40,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-16 08:40:40,874 INFO L87 Difference]: Start difference. First operand 698 states and 1004 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 08:40:41,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:41,489 INFO L93 Difference]: Finished difference Result 1969 states and 2845 transitions. [2024-11-16 08:40:41,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 08:40:41,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-16 08:40:41,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:41,499 INFO L225 Difference]: With dead ends: 1969 [2024-11-16 08:40:41,499 INFO L226 Difference]: Without dead ends: 1380 [2024-11-16 08:40:41,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:40:41,501 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 745 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:41,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 606 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 08:40:41,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2024-11-16 08:40:41,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 720. [2024-11-16 08:40:41,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 1.4325452016689848) internal successors, (1030), 719 states have internal predecessors, (1030), 0 states have call successors, (0), 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 08:40:41,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1030 transitions. [2024-11-16 08:40:41,520 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1030 transitions. Word has length 69 [2024-11-16 08:40:41,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:41,520 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1030 transitions. [2024-11-16 08:40:41,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 08:40:41,521 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1030 transitions. [2024-11-16 08:40:41,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 08:40:41,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:41,522 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] [2024-11-16 08:40:41,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 08:40:41,522 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:41,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:41,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1903733506, now seen corresponding path program 1 times [2024-11-16 08:40:41,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:41,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879797620] [2024-11-16 08:40:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:41,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:41,894 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 08:40:41,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:41,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879797620] [2024-11-16 08:40:41,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879797620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:41,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:41,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 08:40:41,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244243938] [2024-11-16 08:40:41,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:41,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 08:40:41,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:41,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 08:40:41,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-16 08:40:41,897 INFO L87 Difference]: Start difference. First operand 720 states and 1030 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 08:40:42,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:42,214 INFO L93 Difference]: Finished difference Result 1946 states and 2825 transitions. [2024-11-16 08:40:42,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:40:42,215 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-16 08:40:42,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:42,219 INFO L225 Difference]: With dead ends: 1946 [2024-11-16 08:40:42,219 INFO L226 Difference]: Without dead ends: 1310 [2024-11-16 08:40:42,220 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 08:40:42,221 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 833 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:42,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 385 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2024-11-16 08:40:42,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 720. [2024-11-16 08:40:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 1.4311543810848402) internal successors, (1029), 719 states have internal predecessors, (1029), 0 states have call successors, (0), 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 08:40:42,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1029 transitions. [2024-11-16 08:40:42,237 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1029 transitions. Word has length 69 [2024-11-16 08:40:42,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:42,237 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1029 transitions. [2024-11-16 08:40:42,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 08:40:42,238 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1029 transitions. [2024-11-16 08:40:42,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:40:42,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:42,239 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] [2024-11-16 08:40:42,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 08:40:42,239 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:42,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:42,239 INFO L85 PathProgramCache]: Analyzing trace with hash -85280262, now seen corresponding path program 1 times [2024-11-16 08:40:42,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:42,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985058143] [2024-11-16 08:40:42,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:42,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:42,809 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 08:40:42,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:42,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985058143] [2024-11-16 08:40:42,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985058143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:42,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:42,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:40:42,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866579516] [2024-11-16 08:40:42,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:42,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:40:42,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:42,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:40:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:40:42,811 INFO L87 Difference]: Start difference. First operand 720 states and 1029 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 08:40:43,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:43,785 INFO L93 Difference]: Finished difference Result 3495 states and 5045 transitions. [2024-11-16 08:40:43,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 08:40:43,785 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:40:43,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:43,793 INFO L225 Difference]: With dead ends: 3495 [2024-11-16 08:40:43,794 INFO L226 Difference]: Without dead ends: 2905 [2024-11-16 08:40:43,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:40:43,796 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 1283 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:43,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 855 Invalid, 837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 807 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:40:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2024-11-16 08:40:43,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 720. [2024-11-16 08:40:43,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 720 states, 719 states have (on average 1.4297635605006953) internal successors, (1028), 719 states have internal predecessors, (1028), 0 states have call successors, (0), 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 08:40:43,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1028 transitions. [2024-11-16 08:40:43,824 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1028 transitions. Word has length 70 [2024-11-16 08:40:43,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:43,825 INFO L471 AbstractCegarLoop]: Abstraction has 720 states and 1028 transitions. [2024-11-16 08:40:43,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 08:40:43,825 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1028 transitions. [2024-11-16 08:40:43,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 08:40:43,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:43,826 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] [2024-11-16 08:40:43,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 08:40:43,826 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:43,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash -186834190, now seen corresponding path program 1 times [2024-11-16 08:40:43,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:43,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896706451] [2024-11-16 08:40:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:43,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:44,123 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 08:40:44,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:44,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896706451] [2024-11-16 08:40:44,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896706451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:44,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:44,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 08:40:44,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311104052] [2024-11-16 08:40:44,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:44,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 08:40:44,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:44,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 08:40:44,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-16 08:40:44,125 INFO L87 Difference]: Start difference. First operand 720 states and 1028 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 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 08:40:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:44,608 INFO L93 Difference]: Finished difference Result 1983 states and 2864 transitions. [2024-11-16 08:40:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:40:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-16 08:40:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:44,614 INFO L225 Difference]: With dead ends: 1983 [2024-11-16 08:40:44,614 INFO L226 Difference]: Without dead ends: 1363 [2024-11-16 08:40:44,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2024-11-16 08:40:44,616 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 714 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:44,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 634 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 08:40:44,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2024-11-16 08:40:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 710. [2024-11-16 08:40:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 710 states, 709 states have (on average 1.4273624823695346) internal successors, (1012), 709 states have internal predecessors, (1012), 0 states have call successors, (0), 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 08:40:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 710 states to 710 states and 1012 transitions. [2024-11-16 08:40:44,631 INFO L78 Accepts]: Start accepts. Automaton has 710 states and 1012 transitions. Word has length 70 [2024-11-16 08:40:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:44,631 INFO L471 AbstractCegarLoop]: Abstraction has 710 states and 1012 transitions. [2024-11-16 08:40:44,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 9 states have internal predecessors, (70), 0 states have call successors, (0), 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 08:40:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 710 states and 1012 transitions. [2024-11-16 08:40:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:40:44,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:44,632 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] [2024-11-16 08:40:44,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 08:40:44,632 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:44,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash 827883862, now seen corresponding path program 1 times [2024-11-16 08:40:44,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:44,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554982813] [2024-11-16 08:40:44,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:44,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:45,302 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 08:40:45,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:45,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554982813] [2024-11-16 08:40:45,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554982813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:45,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:45,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:40:45,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108587141] [2024-11-16 08:40:45,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:45,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:40:45,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:45,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:40:45,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:40:45,304 INFO L87 Difference]: Start difference. First operand 710 states and 1012 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:40:45,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:45,953 INFO L93 Difference]: Finished difference Result 1542 states and 2229 transitions. [2024-11-16 08:40:45,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:40:45,953 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 08:40:45,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:45,957 INFO L225 Difference]: With dead ends: 1542 [2024-11-16 08:40:45,957 INFO L226 Difference]: Without dead ends: 1300 [2024-11-16 08:40:45,958 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 08:40:45,958 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 727 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:45,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1136 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-16 08:40:45,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 688. [2024-11-16 08:40:45,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 687 states have (on average 1.4264919941775838) internal successors, (980), 687 states have internal predecessors, (980), 0 states have call successors, (0), 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 08:40:45,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 980 transitions. [2024-11-16 08:40:45,977 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 980 transitions. Word has length 71 [2024-11-16 08:40:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:45,977 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 980 transitions. [2024-11-16 08:40:45,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:40:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 980 transitions. [2024-11-16 08:40:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:40:45,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:45,979 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] [2024-11-16 08:40:45,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 08:40:45,979 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:45,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:45,979 INFO L85 PathProgramCache]: Analyzing trace with hash 755694502, now seen corresponding path program 1 times [2024-11-16 08:40:45,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:45,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734855888] [2024-11-16 08:40:45,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:45,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:46,538 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 08:40:46,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:46,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734855888] [2024-11-16 08:40:46,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734855888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:46,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:46,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 08:40:46,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20165857] [2024-11-16 08:40:46,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:46,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 08:40:46,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:46,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 08:40:46,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-16 08:40:46,540 INFO L87 Difference]: Start difference. First operand 688 states and 980 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:40:47,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:47,091 INFO L93 Difference]: Finished difference Result 2689 states and 3911 transitions. [2024-11-16 08:40:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 08:40:47,091 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 08:40:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:47,098 INFO L225 Difference]: With dead ends: 2689 [2024-11-16 08:40:47,098 INFO L226 Difference]: Without dead ends: 2450 [2024-11-16 08:40:47,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-16 08:40:47,100 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 962 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:47,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1404 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:47,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2024-11-16 08:40:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 664. [2024-11-16 08:40:47,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 663 states have (on average 1.4283559577677225) internal successors, (947), 663 states have internal predecessors, (947), 0 states have call successors, (0), 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 08:40:47,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 947 transitions. [2024-11-16 08:40:47,118 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 947 transitions. Word has length 71 [2024-11-16 08:40:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:47,118 INFO L471 AbstractCegarLoop]: Abstraction has 664 states and 947 transitions. [2024-11-16 08:40:47,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:40:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 947 transitions. [2024-11-16 08:40:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 08:40:47,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:47,119 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] [2024-11-16 08:40:47,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 08:40:47,119 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:47,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:47,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1750627158, now seen corresponding path program 1 times [2024-11-16 08:40:47,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:47,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654783419] [2024-11-16 08:40:47,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:47,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:47,662 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 08:40:47,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:47,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654783419] [2024-11-16 08:40:47,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654783419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:47,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:47,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:40:47,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305677689] [2024-11-16 08:40:47,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:47,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:40:47,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:47,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:40:47,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:40:47,664 INFO L87 Difference]: Start difference. First operand 664 states and 947 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:40:48,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:48,219 INFO L93 Difference]: Finished difference Result 1466 states and 2125 transitions. [2024-11-16 08:40:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:40:48,219 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-16 08:40:48,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:48,223 INFO L225 Difference]: With dead ends: 1466 [2024-11-16 08:40:48,223 INFO L226 Difference]: Without dead ends: 1250 [2024-11-16 08:40:48,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:40:48,224 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 691 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:48,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 803 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-16 08:40:48,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 662. [2024-11-16 08:40:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.426626323751891) internal successors, (943), 661 states have internal predecessors, (943), 0 states have call successors, (0), 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 08:40:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 943 transitions. [2024-11-16 08:40:48,238 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 943 transitions. Word has length 71 [2024-11-16 08:40:48,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:48,238 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 943 transitions. [2024-11-16 08:40:48,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 08:40:48,238 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 943 transitions. [2024-11-16 08:40:48,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 08:40:48,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:48,239 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] [2024-11-16 08:40:48,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 08:40:48,239 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:48,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:48,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1566651556, now seen corresponding path program 1 times [2024-11-16 08:40:48,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981741051] [2024-11-16 08:40:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:48,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:49,764 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 08:40:49,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981741051] [2024-11-16 08:40:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981741051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:49,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:49,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2024-11-16 08:40:49,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885335018] [2024-11-16 08:40:49,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:49,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-16 08:40:49,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:49,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-16 08:40:49,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=645, Unknown=0, NotChecked=0, Total=702 [2024-11-16 08:40:49,766 INFO L87 Difference]: Start difference. First operand 662 states and 943 transitions. Second operand has 27 states, 27 states have (on average 2.7037037037037037) internal successors, (73), 27 states have internal predecessors, (73), 0 states have call successors, (0), 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 08:40:52,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:52,285 INFO L93 Difference]: Finished difference Result 3277 states and 4769 transitions. [2024-11-16 08:40:52,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-16 08:40:52,286 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.7037037037037037) internal successors, (73), 27 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-16 08:40:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:52,296 INFO L225 Difference]: With dead ends: 3277 [2024-11-16 08:40:52,296 INFO L226 Difference]: Without dead ends: 3062 [2024-11-16 08:40:52,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=365, Invalid=2085, Unknown=0, NotChecked=0, Total=2450 [2024-11-16 08:40:52,298 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 1016 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 4569 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:52,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 4569 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 08:40:52,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2024-11-16 08:40:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 675. [2024-11-16 08:40:52,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 674 states have (on average 1.4228486646884273) internal successors, (959), 674 states have internal predecessors, (959), 0 states have call successors, (0), 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 08:40:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 959 transitions. [2024-11-16 08:40:52,326 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 959 transitions. Word has length 73 [2024-11-16 08:40:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:52,326 INFO L471 AbstractCegarLoop]: Abstraction has 675 states and 959 transitions. [2024-11-16 08:40:52,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.7037037037037037) internal successors, (73), 27 states have internal predecessors, (73), 0 states have call successors, (0), 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 08:40:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 959 transitions. [2024-11-16 08:40:52,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:40:52,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:52,327 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] [2024-11-16 08:40:52,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 08:40:52,327 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:52,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:52,328 INFO L85 PathProgramCache]: Analyzing trace with hash 108863710, now seen corresponding path program 1 times [2024-11-16 08:40:52,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:52,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132891808] [2024-11-16 08:40:52,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:52,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:52,839 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 08:40:52,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:52,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132891808] [2024-11-16 08:40:52,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132891808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:52,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:52,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 08:40:52,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448355417] [2024-11-16 08:40:52,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:52,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 08:40:52,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 08:40:52,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-16 08:40:52,841 INFO L87 Difference]: Start difference. First operand 675 states and 959 transitions. Second operand has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 0 states have call successors, (0), 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 08:40:53,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:53,409 INFO L93 Difference]: Finished difference Result 1488 states and 2150 transitions. [2024-11-16 08:40:53,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 08:40:53,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-16 08:40:53,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:53,413 INFO L225 Difference]: With dead ends: 1488 [2024-11-16 08:40:53,413 INFO L226 Difference]: Without dead ends: 1264 [2024-11-16 08:40:53,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-16 08:40:53,414 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 681 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:53,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1362 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:53,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1264 states. [2024-11-16 08:40:53,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1264 to 656. [2024-11-16 08:40:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 655 states have (on average 1.4274809160305344) internal successors, (935), 655 states have internal predecessors, (935), 0 states have call successors, (0), 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 08:40:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 935 transitions. [2024-11-16 08:40:53,434 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 935 transitions. Word has length 74 [2024-11-16 08:40:53,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:53,434 INFO L471 AbstractCegarLoop]: Abstraction has 656 states and 935 transitions. [2024-11-16 08:40:53,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 13 states have internal predecessors, (74), 0 states have call successors, (0), 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 08:40:53,435 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 935 transitions. [2024-11-16 08:40:53,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-16 08:40:53,435 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:53,435 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] [2024-11-16 08:40:53,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 08:40:53,436 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:53,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:53,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1592591287, now seen corresponding path program 1 times [2024-11-16 08:40:53,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:53,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801744208] [2024-11-16 08:40:53,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:53,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:53,482 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 08:40:53,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:53,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801744208] [2024-11-16 08:40:53,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801744208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:53,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:53,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:40:53,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804832994] [2024-11-16 08:40:53,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:53,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:40:53,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:53,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:40:53,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:40:53,486 INFO L87 Difference]: Start difference. First operand 656 states and 935 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 08:40:53,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:53,512 INFO L93 Difference]: Finished difference Result 1745 states and 2524 transitions. [2024-11-16 08:40:53,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:40:53,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-16 08:40:53,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:53,515 INFO L225 Difference]: With dead ends: 1745 [2024-11-16 08:40:53,515 INFO L226 Difference]: Without dead ends: 1160 [2024-11-16 08:40:53,519 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 08:40:53,521 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 66 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:53,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 292 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-16 08:40:53,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1136. [2024-11-16 08:40:53,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 1135 states have (on average 1.4176211453744494) internal successors, (1609), 1135 states have internal predecessors, (1609), 0 states have call successors, (0), 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 08:40:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1609 transitions. [2024-11-16 08:40:53,539 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1609 transitions. Word has length 74 [2024-11-16 08:40:53,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:53,539 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1609 transitions. [2024-11-16 08:40:53,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 08:40:53,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1609 transitions. [2024-11-16 08:40:53,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 08:40:53,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:53,540 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] [2024-11-16 08:40:53,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 08:40:53,540 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:53,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:53,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1839034284, now seen corresponding path program 1 times [2024-11-16 08:40:53,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459703614] [2024-11-16 08:40:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:53,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:53,666 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 08:40:53,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:53,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459703614] [2024-11-16 08:40:53,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459703614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:53,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:53,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 08:40:53,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198167072] [2024-11-16 08:40:53,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:53,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 08:40:53,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:53,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 08:40:53,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 08:40:53,669 INFO L87 Difference]: Start difference. First operand 1136 states and 1609 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 08:40:53,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:53,708 INFO L93 Difference]: Finished difference Result 2623 states and 3753 transitions. [2024-11-16 08:40:53,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:40:53,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-16 08:40:53,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:53,712 INFO L225 Difference]: With dead ends: 2623 [2024-11-16 08:40:53,712 INFO L226 Difference]: Without dead ends: 1558 [2024-11-16 08:40:53,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:53,716 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 75 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 362 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 08:40:53,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 362 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2024-11-16 08:40:53,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1547. [2024-11-16 08:40:53,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1546 states have (on average 1.4146183699870634) internal successors, (2187), 1546 states have internal predecessors, (2187), 0 states have call successors, (0), 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 08:40:53,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2187 transitions. [2024-11-16 08:40:53,747 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2187 transitions. Word has length 75 [2024-11-16 08:40:53,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:53,747 INFO L471 AbstractCegarLoop]: Abstraction has 1547 states and 2187 transitions. [2024-11-16 08:40:53,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 08:40:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2187 transitions. [2024-11-16 08:40:53,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-16 08:40:53,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:53,748 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] [2024-11-16 08:40:53,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 08:40:53,749 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:53,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:53,749 INFO L85 PathProgramCache]: Analyzing trace with hash -197227626, now seen corresponding path program 1 times [2024-11-16 08:40:53,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:53,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165758467] [2024-11-16 08:40:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:53,943 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 08:40:53,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:53,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165758467] [2024-11-16 08:40:53,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165758467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:53,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:53,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 08:40:53,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012078781] [2024-11-16 08:40:53,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:53,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 08:40:53,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 08:40:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:53,945 INFO L87 Difference]: Start difference. First operand 1547 states and 2187 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 08:40:53,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:53,966 INFO L93 Difference]: Finished difference Result 1569 states and 2213 transitions. [2024-11-16 08:40:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 08:40:53,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-16 08:40:53,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:53,969 INFO L225 Difference]: With dead ends: 1569 [2024-11-16 08:40:53,969 INFO L226 Difference]: Without dead ends: 1567 [2024-11-16 08:40:53,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 08:40:53,970 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 0 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:53,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 593 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:53,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-16 08:40:53,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2024-11-16 08:40:53,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1567 states, 1566 states have (on average 1.4022988505747127) internal successors, (2196), 1566 states have internal predecessors, (2196), 0 states have call successors, (0), 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 08:40:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2196 transitions. [2024-11-16 08:40:53,990 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2196 transitions. Word has length 75 [2024-11-16 08:40:53,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:53,990 INFO L471 AbstractCegarLoop]: Abstraction has 1567 states and 2196 transitions. [2024-11-16 08:40:53,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 08:40:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2196 transitions. [2024-11-16 08:40:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:40:53,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:53,991 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:53,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 08:40:53,992 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:53,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1674637360, now seen corresponding path program 1 times [2024-11-16 08:40:53,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:53,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716854968] [2024-11-16 08:40:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:53,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:54,118 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:54,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:54,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716854968] [2024-11-16 08:40:54,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716854968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:54,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:54,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:54,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245718387] [2024-11-16 08:40:54,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:54,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:40:54,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:54,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:40:54,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:40:54,120 INFO L87 Difference]: Start difference. First operand 1567 states and 2196 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 08:40:54,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:54,390 INFO L93 Difference]: Finished difference Result 4978 states and 7119 transitions. [2024-11-16 08:40:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:40:54,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:40:54,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:54,395 INFO L225 Difference]: With dead ends: 4978 [2024-11-16 08:40:54,396 INFO L226 Difference]: Without dead ends: 3482 [2024-11-16 08:40:54,398 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 08:40:54,398 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 671 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:54,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 354 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2024-11-16 08:40:54,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 2462. [2024-11-16 08:40:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2462 states, 2461 states have (on average 1.4051198699715564) internal successors, (3458), 2461 states have internal predecessors, (3458), 0 states have call successors, (0), 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 08:40:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2462 states to 2462 states and 3458 transitions. [2024-11-16 08:40:54,433 INFO L78 Accepts]: Start accepts. Automaton has 2462 states and 3458 transitions. Word has length 100 [2024-11-16 08:40:54,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:54,433 INFO L471 AbstractCegarLoop]: Abstraction has 2462 states and 3458 transitions. [2024-11-16 08:40:54,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 08:40:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2462 states and 3458 transitions. [2024-11-16 08:40:54,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 08:40:54,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:54,434 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:54,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 08:40:54,435 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:54,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:54,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1020200208, now seen corresponding path program 1 times [2024-11-16 08:40:54,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:54,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435598230] [2024-11-16 08:40:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:54,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:54,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:54,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435598230] [2024-11-16 08:40:54,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435598230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:54,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:54,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:54,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063245956] [2024-11-16 08:40:54,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:54,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:40:54,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:54,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:40:54,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:40:54,555 INFO L87 Difference]: Start difference. First operand 2462 states and 3458 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 08:40:54,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:54,815 INFO L93 Difference]: Finished difference Result 8882 states and 12692 transitions. [2024-11-16 08:40:54,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:40:54,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 08:40:54,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:54,824 INFO L225 Difference]: With dead ends: 8882 [2024-11-16 08:40:54,825 INFO L226 Difference]: Without dead ends: 6512 [2024-11-16 08:40:54,827 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 08:40:54,831 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 823 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:54,831 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 285 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:54,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2024-11-16 08:40:54,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 5250. [2024-11-16 08:40:54,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5250 states, 5249 states have (on average 1.4101733663554963) internal successors, (7402), 5249 states have internal predecessors, (7402), 0 states have call successors, (0), 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 08:40:54,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 7402 transitions. [2024-11-16 08:40:54,911 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 7402 transitions. Word has length 100 [2024-11-16 08:40:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:54,912 INFO L471 AbstractCegarLoop]: Abstraction has 5250 states and 7402 transitions. [2024-11-16 08:40:54,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 08:40:54,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 7402 transitions. [2024-11-16 08:40:54,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-16 08:40:54,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:54,914 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 08:40:54,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 08:40:54,914 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:54,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:54,914 INFO L85 PathProgramCache]: Analyzing trace with hash 973653006, now seen corresponding path program 1 times [2024-11-16 08:40:54,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:54,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788263512] [2024-11-16 08:40:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:54,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:55,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:55,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:55,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788263512] [2024-11-16 08:40:55,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788263512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:55,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:55,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:55,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233825066] [2024-11-16 08:40:55,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:55,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:40:55,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:40:55,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:40:55,041 INFO L87 Difference]: Start difference. First operand 5250 states and 7402 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 08:40:55,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:55,286 INFO L93 Difference]: Finished difference Result 17246 states and 24524 transitions. [2024-11-16 08:40:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 08:40:55,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-16 08:40:55,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:55,306 INFO L225 Difference]: With dead ends: 17246 [2024-11-16 08:40:55,307 INFO L226 Difference]: Without dead ends: 12088 [2024-11-16 08:40:55,317 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 08:40:55,318 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 738 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:55,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 283 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 08:40:55,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12088 states. [2024-11-16 08:40:55,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12088 to 11246. [2024-11-16 08:40:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11246 states, 11245 states have (on average 1.4120053357047577) internal successors, (15878), 11245 states have internal predecessors, (15878), 0 states have call successors, (0), 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 08:40:55,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11246 states to 11246 states and 15878 transitions. [2024-11-16 08:40:55,483 INFO L78 Accepts]: Start accepts. Automaton has 11246 states and 15878 transitions. Word has length 101 [2024-11-16 08:40:55,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:55,483 INFO L471 AbstractCegarLoop]: Abstraction has 11246 states and 15878 transitions. [2024-11-16 08:40:55,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 08:40:55,484 INFO L276 IsEmpty]: Start isEmpty. Operand 11246 states and 15878 transitions. [2024-11-16 08:40:55,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 08:40:55,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:55,485 INFO L215 NwaCegarLoop]: trace histogram [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 08:40:55,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 08:40:55,486 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:55,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:55,486 INFO L85 PathProgramCache]: Analyzing trace with hash 523160902, now seen corresponding path program 1 times [2024-11-16 08:40:55,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:55,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764730494] [2024-11-16 08:40:55,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:55,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:55,645 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:55,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:55,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764730494] [2024-11-16 08:40:55,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764730494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:55,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:55,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 08:40:55,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790523887] [2024-11-16 08:40:55,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:55,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 08:40:55,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:55,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 08:40:55,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 08:40:55,648 INFO L87 Difference]: Start difference. First operand 11246 states and 15878 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 08:40:55,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:55,893 INFO L93 Difference]: Finished difference Result 29730 states and 41892 transitions. [2024-11-16 08:40:55,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 08:40:55,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 08:40:55,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:55,932 INFO L225 Difference]: With dead ends: 29730 [2024-11-16 08:40:55,932 INFO L226 Difference]: Without dead ends: 20580 [2024-11-16 08:40:55,948 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 08:40:55,949 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 712 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 08:40:55,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 257 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 08:40:55,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20580 states. [2024-11-16 08:40:56,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20580 to 14082. [2024-11-16 08:40:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14082 states, 14081 states have (on average 1.3844187202613452) internal successors, (19494), 14081 states have internal predecessors, (19494), 0 states have call successors, (0), 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 08:40:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14082 states to 14082 states and 19494 transitions. [2024-11-16 08:40:56,189 INFO L78 Accepts]: Start accepts. Automaton has 14082 states and 19494 transitions. Word has length 102 [2024-11-16 08:40:56,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:56,190 INFO L471 AbstractCegarLoop]: Abstraction has 14082 states and 19494 transitions. [2024-11-16 08:40:56,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 08:40:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand 14082 states and 19494 transitions. [2024-11-16 08:40:56,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-16 08:40:56,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:56,192 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] [2024-11-16 08:40:56,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 08:40:56,192 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:56,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:56,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1962186186, now seen corresponding path program 1 times [2024-11-16 08:40:56,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:56,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353071100] [2024-11-16 08:40:56,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:56,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:56,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353071100] [2024-11-16 08:40:56,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353071100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:56,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:56,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:40:56,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155213095] [2024-11-16 08:40:56,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:56,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:40:56,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:56,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:40:56,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:40:56,363 INFO L87 Difference]: Start difference. First operand 14082 states and 19494 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 08:40:56,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:56,441 INFO L93 Difference]: Finished difference Result 24946 states and 34544 transitions. [2024-11-16 08:40:56,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:40:56,441 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 08:40:56,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:56,465 INFO L225 Difference]: With dead ends: 24946 [2024-11-16 08:40:56,465 INFO L226 Difference]: Without dead ends: 13379 [2024-11-16 08:40:56,478 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 08:40:56,479 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 66 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 327 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 08:40:56,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 327 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13379 states. [2024-11-16 08:40:56,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13379 to 12477. [2024-11-16 08:40:56,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12477 states, 12476 states have (on average 1.3773645399166399) internal successors, (17184), 12476 states have internal predecessors, (17184), 0 states have call successors, (0), 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 08:40:56,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12477 states to 12477 states and 17184 transitions. [2024-11-16 08:40:56,655 INFO L78 Accepts]: Start accepts. Automaton has 12477 states and 17184 transitions. Word has length 103 [2024-11-16 08:40:56,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:56,655 INFO L471 AbstractCegarLoop]: Abstraction has 12477 states and 17184 transitions. [2024-11-16 08:40:56,655 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 08:40:56,656 INFO L276 IsEmpty]: Start isEmpty. Operand 12477 states and 17184 transitions. [2024-11-16 08:40:56,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 08:40:56,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:56,659 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:56,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 08:40:56,659 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:56,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:56,660 INFO L85 PathProgramCache]: Analyzing trace with hash -663444204, now seen corresponding path program 1 times [2024-11-16 08:40:56,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:56,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535141907] [2024-11-16 08:40:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 08:40:56,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:56,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535141907] [2024-11-16 08:40:56,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535141907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:56,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:56,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:40:56,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173825568] [2024-11-16 08:40:56,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:56,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:40:56,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:56,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:40:56,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:40:56,777 INFO L87 Difference]: Start difference. First operand 12477 states and 17184 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 08:40:56,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:56,874 INFO L93 Difference]: Finished difference Result 23977 states and 32918 transitions. [2024-11-16 08:40:56,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:40:56,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 128 [2024-11-16 08:40:56,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:56,891 INFO L225 Difference]: With dead ends: 23977 [2024-11-16 08:40:56,892 INFO L226 Difference]: Without dead ends: 11588 [2024-11-16 08:40:56,904 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 08:40:56,905 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 62 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 321 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 08:40:56,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 321 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11588 states. [2024-11-16 08:40:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11588 to 11316. [2024-11-16 08:40:57,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11316 states, 11315 states have (on average 1.3596111356606275) internal successors, (15384), 11315 states have internal predecessors, (15384), 0 states have call successors, (0), 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 08:40:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11316 states to 11316 states and 15384 transitions. [2024-11-16 08:40:57,042 INFO L78 Accepts]: Start accepts. Automaton has 11316 states and 15384 transitions. Word has length 128 [2024-11-16 08:40:57,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:57,042 INFO L471 AbstractCegarLoop]: Abstraction has 11316 states and 15384 transitions. [2024-11-16 08:40:57,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 08:40:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand 11316 states and 15384 transitions. [2024-11-16 08:40:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 08:40:57,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:57,046 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:57,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 08:40:57,046 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:57,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:57,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1786134169, now seen corresponding path program 1 times [2024-11-16 08:40:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:57,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365568372] [2024-11-16 08:40:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:57,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 08:40:57,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:57,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365568372] [2024-11-16 08:40:57,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365568372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:57,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:57,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:40:57,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636788092] [2024-11-16 08:40:57,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:57,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:40:57,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:57,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:40:57,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:40:57,167 INFO L87 Difference]: Start difference. First operand 11316 states and 15384 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 08:40:57,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:57,224 INFO L93 Difference]: Finished difference Result 21670 states and 29338 transitions. [2024-11-16 08:40:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:40:57,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 128 [2024-11-16 08:40:57,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:57,243 INFO L225 Difference]: With dead ends: 21670 [2024-11-16 08:40:57,244 INFO L226 Difference]: Without dead ends: 10436 [2024-11-16 08:40:57,258 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 08:40:57,258 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 55 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 321 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 08:40:57,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 321 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:57,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2024-11-16 08:40:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 10182. [2024-11-16 08:40:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10182 states, 10181 states have (on average 1.3377860720950792) internal successors, (13620), 10181 states have internal predecessors, (13620), 0 states have call successors, (0), 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 08:40:57,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10182 states to 10182 states and 13620 transitions. [2024-11-16 08:40:57,481 INFO L78 Accepts]: Start accepts. Automaton has 10182 states and 13620 transitions. Word has length 128 [2024-11-16 08:40:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:57,482 INFO L471 AbstractCegarLoop]: Abstraction has 10182 states and 13620 transitions. [2024-11-16 08:40:57,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 08:40:57,482 INFO L276 IsEmpty]: Start isEmpty. Operand 10182 states and 13620 transitions. [2024-11-16 08:40:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 08:40:57,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:57,484 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:57,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 08:40:57,485 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:57,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:57,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1766503453, now seen corresponding path program 1 times [2024-11-16 08:40:57,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:57,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736817337] [2024-11-16 08:40:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:57,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:57,602 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 08:40:57,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:57,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736817337] [2024-11-16 08:40:57,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736817337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:40:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142871392] [2024-11-16 08:40:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:57,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:40:57,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:57,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:40:57,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:40:57,604 INFO L87 Difference]: Start difference. First operand 10182 states and 13620 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 08:40:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:57,665 INFO L93 Difference]: Finished difference Result 26026 states and 34798 transitions. [2024-11-16 08:40:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:40:57,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 129 [2024-11-16 08:40:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:57,694 INFO L225 Difference]: With dead ends: 26026 [2024-11-16 08:40:57,694 INFO L226 Difference]: Without dead ends: 15926 [2024-11-16 08:40:57,706 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 08:40:57,707 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 45 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 322 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 08:40:57,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 322 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15926 states. [2024-11-16 08:40:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15926 to 14748. [2024-11-16 08:40:57,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14748 states, 14747 states have (on average 1.327998915033566) internal successors, (19584), 14747 states have internal predecessors, (19584), 0 states have call successors, (0), 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 08:40:57,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14748 states to 14748 states and 19584 transitions. [2024-11-16 08:40:57,891 INFO L78 Accepts]: Start accepts. Automaton has 14748 states and 19584 transitions. Word has length 129 [2024-11-16 08:40:57,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:57,891 INFO L471 AbstractCegarLoop]: Abstraction has 14748 states and 19584 transitions. [2024-11-16 08:40:57,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 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 08:40:57,892 INFO L276 IsEmpty]: Start isEmpty. Operand 14748 states and 19584 transitions. [2024-11-16 08:40:57,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 08:40:57,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:57,894 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:57,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 08:40:57,895 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:57,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:57,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1555925907, now seen corresponding path program 1 times [2024-11-16 08:40:57,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:57,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859539972] [2024-11-16 08:40:57,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:57,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:58,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859539972] [2024-11-16 08:40:58,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859539972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 08:40:58,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 08:40:58,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 08:40:58,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967987401] [2024-11-16 08:40:58,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 08:40:58,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 08:40:58,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:40:58,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 08:40:58,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 08:40:58,081 INFO L87 Difference]: Start difference. First operand 14748 states and 19584 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 08:40:58,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:40:58,139 INFO L93 Difference]: Finished difference Result 25911 states and 34278 transitions. [2024-11-16 08:40:58,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 08:40:58,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-16 08:40:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:40:58,156 INFO L225 Difference]: With dead ends: 25911 [2024-11-16 08:40:58,156 INFO L226 Difference]: Without dead ends: 11245 [2024-11-16 08:40:58,168 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 08:40:58,169 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 69 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 304 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 08:40:58,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 304 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 08:40:58,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11245 states. [2024-11-16 08:40:58,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11245 to 11035. [2024-11-16 08:40:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11035 states, 11034 states have (on average 1.3009787928221859) internal successors, (14355), 11034 states have internal predecessors, (14355), 0 states have call successors, (0), 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 08:40:58,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11035 states to 11035 states and 14355 transitions. [2024-11-16 08:40:58,300 INFO L78 Accepts]: Start accepts. Automaton has 11035 states and 14355 transitions. Word has length 130 [2024-11-16 08:40:58,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:40:58,301 INFO L471 AbstractCegarLoop]: Abstraction has 11035 states and 14355 transitions. [2024-11-16 08:40:58,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 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 08:40:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 11035 states and 14355 transitions. [2024-11-16 08:40:58,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:40:58,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:40:58,303 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:40:58,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 08:40:58,304 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:40:58,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:40:58,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1807013237, now seen corresponding path program 1 times [2024-11-16 08:40:58,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:40:58,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133805286] [2024-11-16 08:40:58,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:58,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:40:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:40:58,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:40:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133805286] [2024-11-16 08:40:58,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133805286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:40:58,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24094051] [2024-11-16 08:40:58,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:40:58,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:40:58,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:40:58,932 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 08:40:58,934 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 08:40:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:40:59,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 08:40:59,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:41:00,596 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:00,596 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:41:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:02,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24094051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:41:02,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:41:02,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 27 [2024-11-16 08:41:02,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891893327] [2024-11-16 08:41:02,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:41:02,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-16 08:41:02,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:02,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-16 08:41:02,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2024-11-16 08:41:02,095 INFO L87 Difference]: Start difference. First operand 11035 states and 14355 transitions. Second operand has 28 states, 28 states have (on average 12.214285714285714) internal successors, (342), 27 states have internal predecessors, (342), 0 states have call successors, (0), 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 08:41:03,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:03,413 INFO L93 Difference]: Finished difference Result 43087 states and 56472 transitions. [2024-11-16 08:41:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 08:41:03,414 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 12.214285714285714) internal successors, (342), 27 states have internal predecessors, (342), 0 states have call successors, (0), 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 131 [2024-11-16 08:41:03,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:03,454 INFO L225 Difference]: With dead ends: 43087 [2024-11-16 08:41:03,455 INFO L226 Difference]: Without dead ends: 32169 [2024-11-16 08:41:03,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=549, Invalid=1803, Unknown=0, NotChecked=0, Total=2352 [2024-11-16 08:41:03,466 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 904 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 1332 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:03,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 1332 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 08:41:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32169 states. [2024-11-16 08:41:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32169 to 26333. [2024-11-16 08:41:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26333 states, 26332 states have (on average 1.301951997569497) internal successors, (34283), 26332 states have internal predecessors, (34283), 0 states have call successors, (0), 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 08:41:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26333 states to 26333 states and 34283 transitions. [2024-11-16 08:41:03,815 INFO L78 Accepts]: Start accepts. Automaton has 26333 states and 34283 transitions. Word has length 131 [2024-11-16 08:41:03,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:03,815 INFO L471 AbstractCegarLoop]: Abstraction has 26333 states and 34283 transitions. [2024-11-16 08:41:03,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 12.214285714285714) internal successors, (342), 27 states have internal predecessors, (342), 0 states have call successors, (0), 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 08:41:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 26333 states and 34283 transitions. [2024-11-16 08:41:03,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:41:03,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:03,821 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:03,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 08:41:04,025 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,SelfDestructingSolverStorable32 [2024-11-16 08:41:04,026 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:04,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:04,027 INFO L85 PathProgramCache]: Analyzing trace with hash -362446251, now seen corresponding path program 1 times [2024-11-16 08:41:04,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:04,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703224403] [2024-11-16 08:41:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:04,538 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:04,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:04,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703224403] [2024-11-16 08:41:04,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703224403] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:41:04,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419665706] [2024-11-16 08:41:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:04,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:41:04,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:41:04,601 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 08:41:04,602 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 08:41:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:04,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-16 08:41:04,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:41:05,437 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:05,437 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:41:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:07,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419665706] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:41:07,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:41:07,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-11-16 08:41:07,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428212018] [2024-11-16 08:41:07,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:41:07,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 08:41:07,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:07,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 08:41:07,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=768, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:41:07,449 INFO L87 Difference]: Start difference. First operand 26333 states and 34283 transitions. Second operand has 30 states, 30 states have (on average 12.1) internal successors, (363), 29 states have internal predecessors, (363), 0 states have call successors, (0), 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 08:41:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:14,258 INFO L93 Difference]: Finished difference Result 257974 states and 337560 transitions. [2024-11-16 08:41:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2024-11-16 08:41:14,259 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 12.1) internal successors, (363), 29 states have internal predecessors, (363), 0 states have call successors, (0), 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 131 [2024-11-16 08:41:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:14,840 INFO L225 Difference]: With dead ends: 257974 [2024-11-16 08:41:14,841 INFO L226 Difference]: Without dead ends: 231827 [2024-11-16 08:41:14,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6850 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3009, Invalid=19043, Unknown=0, NotChecked=0, Total=22052 [2024-11-16 08:41:14,884 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 4002 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 4073 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4002 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 4141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 4073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:14,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4002 Valid, 3675 Invalid, 4141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 4073 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-16 08:41:14,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231827 states. [2024-11-16 08:41:17,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231827 to 152102. [2024-11-16 08:41:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152102 states, 152101 states have (on average 1.3002347124607991) internal successors, (197767), 152101 states have internal predecessors, (197767), 0 states have call successors, (0), 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 08:41:18,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152102 states to 152102 states and 197767 transitions. [2024-11-16 08:41:18,081 INFO L78 Accepts]: Start accepts. Automaton has 152102 states and 197767 transitions. Word has length 131 [2024-11-16 08:41:18,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:18,082 INFO L471 AbstractCegarLoop]: Abstraction has 152102 states and 197767 transitions. [2024-11-16 08:41:18,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 12.1) internal successors, (363), 29 states have internal predecessors, (363), 0 states have call successors, (0), 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 08:41:18,082 INFO L276 IsEmpty]: Start isEmpty. Operand 152102 states and 197767 transitions. [2024-11-16 08:41:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-16 08:41:18,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:18,099 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:18,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 08:41:18,299 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,SelfDestructingSolverStorable33 [2024-11-16 08:41:18,300 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:18,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:18,301 INFO L85 PathProgramCache]: Analyzing trace with hash -280771617, now seen corresponding path program 1 times [2024-11-16 08:41:18,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:18,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864171287] [2024-11-16 08:41:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:18,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:18,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864171287] [2024-11-16 08:41:18,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864171287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:41:18,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333113184] [2024-11-16 08:41:18,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:18,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:41:18,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:41:18,694 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 08:41:18,695 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 08:41:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:18,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-16 08:41:18,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:41:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:19,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:41:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:20,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333113184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:41:20,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:41:20,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 29 [2024-11-16 08:41:20,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352232062] [2024-11-16 08:41:20,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:41:20,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 08:41:20,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 08:41:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=745, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:41:20,390 INFO L87 Difference]: Start difference. First operand 152102 states and 197767 transitions. Second operand has 30 states, 30 states have (on average 11.566666666666666) internal successors, (347), 29 states have internal predecessors, (347), 0 states have call successors, (0), 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 08:41:24,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 08:41:24,394 INFO L93 Difference]: Finished difference Result 642107 states and 832239 transitions. [2024-11-16 08:41:24,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-16 08:41:24,395 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 11.566666666666666) internal successors, (347), 29 states have internal predecessors, (347), 0 states have call successors, (0), 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 131 [2024-11-16 08:41:24,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 08:41:25,151 INFO L225 Difference]: With dead ends: 642107 [2024-11-16 08:41:25,151 INFO L226 Difference]: Without dead ends: 490967 [2024-11-16 08:41:25,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1209 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1046, Invalid=4066, Unknown=0, NotChecked=0, Total=5112 [2024-11-16 08:41:25,311 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 1374 mSDsluCounter, 2324 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 08:41:25,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 2523 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 08:41:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490967 states. [2024-11-16 08:41:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490967 to 322040. [2024-11-16 08:41:29,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322040 states, 322039 states have (on average 1.2928899915848702) internal successors, (416361), 322039 states have internal predecessors, (416361), 0 states have call successors, (0), 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 08:41:31,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322040 states to 322040 states and 416361 transitions. [2024-11-16 08:41:31,348 INFO L78 Accepts]: Start accepts. Automaton has 322040 states and 416361 transitions. Word has length 131 [2024-11-16 08:41:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 08:41:31,348 INFO L471 AbstractCegarLoop]: Abstraction has 322040 states and 416361 transitions. [2024-11-16 08:41:31,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 11.566666666666666) internal successors, (347), 29 states have internal predecessors, (347), 0 states have call successors, (0), 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 08:41:31,349 INFO L276 IsEmpty]: Start isEmpty. Operand 322040 states and 416361 transitions. [2024-11-16 08:41:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-16 08:41:31,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 08:41:31,381 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 08:41:31,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 08:41:31,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:41:31,582 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 08:41:31,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 08:41:31,583 INFO L85 PathProgramCache]: Analyzing trace with hash 870453967, now seen corresponding path program 1 times [2024-11-16 08:41:31,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 08:41:31,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538519350] [2024-11-16 08:41:31,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 08:41:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:31,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 08:41:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538519350] [2024-11-16 08:41:31,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538519350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 08:41:31,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545829657] [2024-11-16 08:41:31,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 08:41:31,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 08:41:31,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 08:41:31,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 08:41:31,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 08:41:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 08:41:32,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-16 08:41:32,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 08:41:32,968 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:32,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 08:41:34,490 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 08:41:34,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545829657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 08:41:34,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 08:41:34,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 29 [2024-11-16 08:41:34,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158975063] [2024-11-16 08:41:34,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 08:41:34,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 08:41:34,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 08:41:34,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 08:41:34,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=761, Unknown=0, NotChecked=0, Total=870 [2024-11-16 08:41:34,492 INFO L87 Difference]: Start difference. First operand 322040 states and 416361 transitions. Second operand has 30 states, 30 states have (on average 11.8) internal successors, (354), 29 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)