./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/standard_compareModified_ground.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/array-examples/standard_compareModified_ground.i -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 ec4d4b5cea975144b4de3d9f9eb9b04d1c4b7aa6b7464f360f53530c4a9bd50e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 08:59:02,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 08:59:02,734 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 08:59:02,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 08:59:02,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 08:59:02,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 08:59:02,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 08:59:02,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 08:59:02,757 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 08:59:02,757 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 08:59:02,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 08:59:02,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 08:59:02,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 08:59:02,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 08:59:02,758 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 08:59:02,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 08:59:02,759 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 08:59:02,760 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 08:59:02,760 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 08:59:02,760 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> ec4d4b5cea975144b4de3d9f9eb9b04d1c4b7aa6b7464f360f53530c4a9bd50e [2025-03-03 08:59:02,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 08:59:03,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 08:59:03,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 08:59:03,005 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 08:59:03,005 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 08:59:03,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_compareModified_ground.i [2025-03-03 08:59:04,140 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13cedbed/c7a75c98a4e244cc90eb61a31fa60d20/FLAG4841ae9ac [2025-03-03 08:59:04,403 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 08:59:04,421 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_compareModified_ground.i [2025-03-03 08:59:04,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13cedbed/c7a75c98a4e244cc90eb61a31fa60d20/FLAG4841ae9ac [2025-03-03 08:59:04,450 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e13cedbed/c7a75c98a4e244cc90eb61a31fa60d20 [2025-03-03 08:59:04,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 08:59:04,453 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 08:59:04,453 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 08:59:04,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 08:59:04,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 08:59:04,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e2ce4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04, skipping insertion in model container [2025-03-03 08:59:04,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,471 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 08:59:04,581 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/array-examples/standard_compareModified_ground.i[824,837] [2025-03-03 08:59:04,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 08:59:04,607 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 08:59:04,616 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/array-examples/standard_compareModified_ground.i[824,837] [2025-03-03 08:59:04,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 08:59:04,634 INFO L204 MainTranslator]: Completed translation [2025-03-03 08:59:04,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04 WrapperNode [2025-03-03 08:59:04,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 08:59:04,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 08:59:04,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 08:59:04,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 08:59:04,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,659 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2025-03-03 08:59:04,661 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 08:59:04,662 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 08:59:04,662 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 08:59:04,662 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 08:59:04,667 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,668 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,681 INFO L175 MemorySlicer]: Split 12 memory accesses to 4 slices as follows [2, 2, 3, 5]. 42 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-03 08:59:04,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,687 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 08:59:04,696 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 08:59:04,696 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 08:59:04,696 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 08:59:04,700 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (1/1) ... [2025-03-03 08:59:04,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 08:59:04,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:04,725 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) [2025-03-03 08:59:04,730 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 [2025-03-03 08:59:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 08:59:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 08:59:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 08:59:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 08:59:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 08:59:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-03 08:59:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-03 08:59:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-03 08:59:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 08:59:04,810 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 08:59:04,812 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 08:59:04,923 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L17: call ULTIMATE.dealloc(main_~#a~0#1.base, main_~#a~0#1.offset);havoc main_~#a~0#1.base, main_~#a~0#1.offset;call ULTIMATE.dealloc(main_~#b~0#1.base, main_~#b~0#1.offset);havoc main_~#b~0#1.base, main_~#b~0#1.offset;call ULTIMATE.dealloc(main_~#c~0#1.base, main_~#c~0#1.offset);havoc main_~#c~0#1.base, main_~#c~0#1.offset; [2025-03-03 08:59:04,931 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-03-03 08:59:04,932 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 08:59:04,937 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 08:59:04,938 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 08:59:04,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 08:59:04 BoogieIcfgContainer [2025-03-03 08:59:04,938 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 08:59:04,939 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 08:59:04,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 08:59:04,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 08:59:04,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 08:59:04" (1/3) ... [2025-03-03 08:59:04,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3819f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 08:59:04, skipping insertion in model container [2025-03-03 08:59:04,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 08:59:04" (2/3) ... [2025-03-03 08:59:04,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3819f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 08:59:04, skipping insertion in model container [2025-03-03 08:59:04,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 08:59:04" (3/3) ... [2025-03-03 08:59:04,944 INFO L128 eAbstractionObserver]: Analyzing ICFG standard_compareModified_ground.i [2025-03-03 08:59:04,954 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 08:59:04,955 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG standard_compareModified_ground.i that has 2 procedures, 23 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-03-03 08:59:04,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 08:59:05,003 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;@6cf679e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 08:59:05,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 08:59:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 08:59:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-03 08:59:05,009 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:05,010 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:05,010 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:05,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:05,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1815421780, now seen corresponding path program 1 times [2025-03-03 08:59:05,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:05,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355238589] [2025-03-03 08:59:05,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:05,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-03 08:59:05,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-03 08:59:05,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:05,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 08:59:05,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:05,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355238589] [2025-03-03 08:59:05,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355238589] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 08:59:05,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 08:59:05,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 08:59:05,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337842735] [2025-03-03 08:59:05,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 08:59:05,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 08:59:05,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:05,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 08:59:05,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 08:59:05,189 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:05,212 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2025-03-03 08:59:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 08:59:05,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-03 08:59:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:05,219 INFO L225 Difference]: With dead ends: 44 [2025-03-03 08:59:05,219 INFO L226 Difference]: Without dead ends: 21 [2025-03-03 08:59:05,221 INFO L434 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 [2025-03-03 08:59:05,223 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:05,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:05,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-03-03 08:59:05,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-03-03 08:59:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 08:59:05,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2025-03-03 08:59:05,249 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 10 [2025-03-03 08:59:05,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:05,250 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2025-03-03 08:59:05,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,251 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2025-03-03 08:59:05,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-03 08:59:05,252 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:05,252 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:05,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 08:59:05,252 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:05,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash 572232296, now seen corresponding path program 1 times [2025-03-03 08:59:05,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:05,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440107270] [2025-03-03 08:59:05,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:05,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:05,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-03 08:59:05,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-03 08:59:05,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:05,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:05,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:05,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440107270] [2025-03-03 08:59:05,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440107270] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 08:59:05,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 08:59:05,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 08:59:05,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531152160] [2025-03-03 08:59:05,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 08:59:05,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 08:59:05,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:05,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 08:59:05,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 08:59:05,348 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:05,364 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2025-03-03 08:59:05,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 08:59:05,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-03 08:59:05,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:05,365 INFO L225 Difference]: With dead ends: 38 [2025-03-03 08:59:05,365 INFO L226 Difference]: Without dead ends: 24 [2025-03-03 08:59:05,366 INFO L434 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 [2025-03-03 08:59:05,367 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:05,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 44 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:05,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-03-03 08:59:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2025-03-03 08:59:05,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 08:59:05,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2025-03-03 08:59:05,371 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 11 [2025-03-03 08:59:05,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:05,372 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2025-03-03 08:59:05,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2025-03-03 08:59:05,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-03 08:59:05,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:05,372 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:05,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 08:59:05,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:05,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:05,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2077508565, now seen corresponding path program 1 times [2025-03-03 08:59:05,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:05,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637202060] [2025-03-03 08:59:05,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:05,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:05,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-03 08:59:05,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-03 08:59:05,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:05,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:05,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:05,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:05,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637202060] [2025-03-03 08:59:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637202060] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:05,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278997493] [2025-03-03 08:59:05,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:05,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:05,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:05,460 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) [2025-03-03 08:59:05,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 08:59:05,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-03 08:59:05,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-03 08:59:05,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:05,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:05,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 08:59:05,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:05,535 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 08:59:05,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278997493] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 08:59:05,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 08:59:05,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-03-03 08:59:05,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043476898] [2025-03-03 08:59:05,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 08:59:05,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 08:59:05,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:05,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 08:59:05,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 08:59:05,537 INFO L87 Difference]: Start difference. First operand 22 states and 28 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:05,546 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2025-03-03 08:59:05,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 08:59:05,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-03 08:59:05,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:05,547 INFO L225 Difference]: With dead ends: 39 [2025-03-03 08:59:05,547 INFO L226 Difference]: Without dead ends: 26 [2025-03-03 08:59:05,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 08:59:05,548 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:05,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-03-03 08:59:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-03-03 08:59:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 08:59:05,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2025-03-03 08:59:05,551 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 14 [2025-03-03 08:59:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:05,551 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2025-03-03 08:59:05,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2025-03-03 08:59:05,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-03 08:59:05,552 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:05,552 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:05,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-03 08:59:05,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:05,756 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:05,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:05,757 INFO L85 PathProgramCache]: Analyzing trace with hash 270054102, now seen corresponding path program 1 times [2025-03-03 08:59:05,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:05,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352144333] [2025-03-03 08:59:05,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:05,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:05,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-03 08:59:05,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-03 08:59:05,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:05,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:05,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:05,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352144333] [2025-03-03 08:59:05,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352144333] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:05,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072392345] [2025-03-03 08:59:05,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:05,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:05,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:05,843 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) [2025-03-03 08:59:05,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 08:59:05,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-03 08:59:05,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-03 08:59:05,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:05,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:05,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 08:59:05,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:05,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:05,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:05,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:05,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072392345] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:05,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:05,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-03 08:59:05,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580511719] [2025-03-03 08:59:05,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:05,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 08:59:05,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:05,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 08:59:05,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-03 08:59:05,942 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:05,958 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2025-03-03 08:59:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 08:59:05,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-03 08:59:05,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:05,960 INFO L225 Difference]: With dead ends: 51 [2025-03-03 08:59:05,961 INFO L226 Difference]: Without dead ends: 29 [2025-03-03 08:59:05,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-03 08:59:05,962 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:05,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:05,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-03-03 08:59:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-03-03 08:59:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 08:59:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2025-03-03 08:59:05,969 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 14 [2025-03-03 08:59:05,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:05,969 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2025-03-03 08:59:05,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:05,970 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2025-03-03 08:59:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-03 08:59:05,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:05,970 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:05,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-03 08:59:06,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-03 08:59:06,171 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:06,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1027941738, now seen corresponding path program 2 times [2025-03-03 08:59:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160633526] [2025-03-03 08:59:06,171 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 08:59:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:06,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-03-03 08:59:06,207 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 08:59:06,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 08:59:06,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:06,261 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-03 08:59:06,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160633526] [2025-03-03 08:59:06,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160633526] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:06,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895657291] [2025-03-03 08:59:06,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 08:59:06,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:06,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:06,263 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) [2025-03-03 08:59:06,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 08:59:06,313 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 2 equivalence classes. [2025-03-03 08:59:06,335 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-03-03 08:59:06,335 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 08:59:06,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:06,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-03 08:59:06,337 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:06,376 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:06,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-03 08:59:06,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895657291] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:06,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:06,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2025-03-03 08:59:06,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204615608] [2025-03-03 08:59:06,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:06,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-03 08:59:06,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:06,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-03 08:59:06,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2025-03-03 08:59:06,440 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:06,556 INFO L93 Difference]: Finished difference Result 66 states and 92 transitions. [2025-03-03 08:59:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-03 08:59:06,557 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2025-03-03 08:59:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:06,557 INFO L225 Difference]: With dead ends: 66 [2025-03-03 08:59:06,557 INFO L226 Difference]: Without dead ends: 44 [2025-03-03 08:59:06,558 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2025-03-03 08:59:06,558 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:06,559 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 105 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2025-03-03 08:59:06,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2025-03-03 08:59:06,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-03 08:59:06,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2025-03-03 08:59:06,562 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 17 [2025-03-03 08:59:06,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:06,562 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2025-03-03 08:59:06,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 14 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:06,562 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2025-03-03 08:59:06,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-03 08:59:06,563 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:06,563 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:06,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-03 08:59:06,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:06,769 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:06,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:06,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2047504364, now seen corresponding path program 3 times [2025-03-03 08:59:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:06,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93760569] [2025-03-03 08:59:06,770 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-03 08:59:06,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:06,786 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 6 equivalence classes. [2025-03-03 08:59:06,796 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 20 of 26 statements. [2025-03-03 08:59:06,796 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-03 08:59:06,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-03 08:59:07,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93760569] [2025-03-03 08:59:07,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93760569] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460143275] [2025-03-03 08:59:07,200 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-03 08:59:07,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:07,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:07,201 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) [2025-03-03 08:59:07,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 08:59:07,253 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 26 statements into 6 equivalence classes. [2025-03-03 08:59:07,273 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 20 of 26 statements. [2025-03-03 08:59:07,274 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-03 08:59:07,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:07,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 08:59:07,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-03 08:59:07,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-03 08:59:07,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460143275] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:07,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:07,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 16 [2025-03-03 08:59:07,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392608537] [2025-03-03 08:59:07,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:07,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-03 08:59:07,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:07,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-03 08:59:07,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2025-03-03 08:59:07,377 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:07,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:07,564 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2025-03-03 08:59:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-03 08:59:07,565 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2025-03-03 08:59:07,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:07,566 INFO L225 Difference]: With dead ends: 108 [2025-03-03 08:59:07,566 INFO L226 Difference]: Without dead ends: 93 [2025-03-03 08:59:07,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2025-03-03 08:59:07,567 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 37 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:07,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 165 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 08:59:07,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2025-03-03 08:59:07,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 70. [2025-03-03 08:59:07,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 64 states have (on average 1.265625) internal successors, (81), 65 states have internal predecessors, (81), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-03 08:59:07,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2025-03-03 08:59:07,576 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 26 [2025-03-03 08:59:07,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:07,576 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2025-03-03 08:59:07,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:07,576 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2025-03-03 08:59:07,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-03 08:59:07,577 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:07,577 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:07,583 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-03 08:59:07,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:07,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:07,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:07,778 INFO L85 PathProgramCache]: Analyzing trace with hash -985984562, now seen corresponding path program 1 times [2025-03-03 08:59:07,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:07,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282705343] [2025-03-03 08:59:07,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:07,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:07,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-03 08:59:07,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-03 08:59:07,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:07,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-03 08:59:07,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:07,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282705343] [2025-03-03 08:59:07,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282705343] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:07,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937724802] [2025-03-03 08:59:07,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 08:59:07,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:07,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:08,001 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 08:59:08,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 08:59:08,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-03 08:59:08,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-03 08:59:08,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 08:59:08,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:08,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-03 08:59:08,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-03 08:59:08,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-03 08:59:08,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937724802] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:08,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-03-03 08:59:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884455608] [2025-03-03 08:59:08,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:08,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-03 08:59:08,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:08,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-03 08:59:08,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-03-03 08:59:08,284 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:08,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:08,319 INFO L93 Difference]: Finished difference Result 139 states and 184 transitions. [2025-03-03 08:59:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-03 08:59:08,320 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2025-03-03 08:59:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:08,322 INFO L225 Difference]: With dead ends: 139 [2025-03-03 08:59:08,322 INFO L226 Difference]: Without dead ends: 82 [2025-03-03 08:59:08,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-03-03 08:59:08,323 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:08,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:08,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-03 08:59:08,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-03-03 08:59:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 76 states have (on average 1.2236842105263157) internal successors, (93), 77 states have internal predecessors, (93), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-03 08:59:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 99 transitions. [2025-03-03 08:59:08,339 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 99 transitions. Word has length 39 [2025-03-03 08:59:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:08,339 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 99 transitions. [2025-03-03 08:59:08,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.48) internal successors, (37), 25 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:08,340 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 99 transitions. [2025-03-03 08:59:08,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-03 08:59:08,341 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:08,341 INFO L218 NwaCegarLoop]: trace histogram [22, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:08,347 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-03 08:59:08,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:08,545 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:08,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash 98403022, now seen corresponding path program 2 times [2025-03-03 08:59:08,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:08,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506076854] [2025-03-03 08:59:08,546 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 08:59:08,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:08,565 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-03-03 08:59:08,584 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-03-03 08:59:08,584 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 08:59:08,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:09,078 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-03 08:59:09,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:09,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506076854] [2025-03-03 08:59:09,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506076854] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:09,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150837862] [2025-03-03 08:59:09,078 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-03 08:59:09,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:09,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:09,080 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 08:59:09,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-03 08:59:09,167 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 51 statements into 2 equivalence classes. [2025-03-03 08:59:09,211 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 51 of 51 statements. [2025-03-03 08:59:09,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-03 08:59:09,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:09,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-03 08:59:09,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-03 08:59:09,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2025-03-03 08:59:09,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150837862] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:09,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:09,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2025-03-03 08:59:09,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053485002] [2025-03-03 08:59:09,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:09,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-03-03 08:59:09,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:09,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-03-03 08:59:09,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2025-03-03 08:59:09,855 INFO L87 Difference]: Start difference. First operand 82 states and 99 transitions. Second operand has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:09,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:09,899 INFO L93 Difference]: Finished difference Result 163 states and 220 transitions. [2025-03-03 08:59:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-03 08:59:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2025-03-03 08:59:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:09,901 INFO L225 Difference]: With dead ends: 163 [2025-03-03 08:59:09,901 INFO L226 Difference]: Without dead ends: 106 [2025-03-03 08:59:09,902 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2025-03-03 08:59:09,902 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:09,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:09,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2025-03-03 08:59:09,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2025-03-03 08:59:09,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 100 states have (on average 1.17) internal successors, (117), 101 states have internal predecessors, (117), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-03 08:59:09,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2025-03-03 08:59:09,922 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 51 [2025-03-03 08:59:09,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:09,923 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2025-03-03 08:59:09,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2025-03-03 08:59:09,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-03 08:59:09,926 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:09,927 INFO L218 NwaCegarLoop]: trace histogram [46, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:09,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-03 08:59:10,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:10,127 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:10,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:10,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2046958386, now seen corresponding path program 3 times [2025-03-03 08:59:10,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:10,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915955565] [2025-03-03 08:59:10,128 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-03 08:59:10,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:10,157 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 24 equivalence classes. [2025-03-03 08:59:10,221 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 41 of 75 statements. [2025-03-03 08:59:10,221 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-03 08:59:10,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:10,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:10,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915955565] [2025-03-03 08:59:10,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915955565] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:10,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522279534] [2025-03-03 08:59:10,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-03 08:59:10,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:10,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:10,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 08:59:10,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-03 08:59:10,453 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 75 statements into 24 equivalence classes. [2025-03-03 08:59:10,846 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 41 of 75 statements. [2025-03-03 08:59:10,846 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-03 08:59:10,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:10,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-03 08:59:10,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:10,917 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522279534] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:11,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2025-03-03 08:59:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915239718] [2025-03-03 08:59:11,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:11,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-03 08:59:11,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:11,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-03 08:59:11,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-03 08:59:11,029 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:11,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:11,065 INFO L93 Difference]: Finished difference Result 175 states and 227 transitions. [2025-03-03 08:59:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-03 08:59:11,065 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2025-03-03 08:59:11,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:11,066 INFO L225 Difference]: With dead ends: 175 [2025-03-03 08:59:11,066 INFO L226 Difference]: Without dead ends: 154 [2025-03-03 08:59:11,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-03 08:59:11,067 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 42 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:11,067 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 106 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 08:59:11,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2025-03-03 08:59:11,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2025-03-03 08:59:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.222972972972973) internal successors, (181), 149 states have internal predecessors, (181), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-03 08:59:11,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 187 transitions. [2025-03-03 08:59:11,087 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 187 transitions. Word has length 75 [2025-03-03 08:59:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:11,087 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 187 transitions. [2025-03-03 08:59:11,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:11,087 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 187 transitions. [2025-03-03 08:59:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-03 08:59:11,090 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:11,090 INFO L218 NwaCegarLoop]: trace histogram [46, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:11,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-03 08:59:11,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:11,291 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:11,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:11,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1956607310, now seen corresponding path program 4 times [2025-03-03 08:59:11,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:11,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120756693] [2025-03-03 08:59:11,291 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-03 08:59:11,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:11,327 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 99 statements into 2 equivalence classes. [2025-03-03 08:59:11,346 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-03-03 08:59:11,346 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-03 08:59:11,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:11,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:11,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120756693] [2025-03-03 08:59:11,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120756693] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:11,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495743] [2025-03-03 08:59:11,748 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-03 08:59:11,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:11,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:11,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 08:59:11,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-03 08:59:11,878 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 99 statements into 2 equivalence classes. [2025-03-03 08:59:11,992 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 99 of 99 statements. [2025-03-03 08:59:11,992 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-03 08:59:11,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:11,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-03 08:59:11,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 08:59:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:12,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 08:59:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1368 backedges. 0 proven. 287 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:12,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495743] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 08:59:12,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 08:59:12,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2025-03-03 08:59:12,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704033435] [2025-03-03 08:59:12,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 08:59:12,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2025-03-03 08:59:12,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 08:59:12,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2025-03-03 08:59:12,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2025-03-03 08:59:12,382 INFO L87 Difference]: Start difference. First operand 154 states and 187 transitions. Second operand has 32 states, 32 states have (on average 3.09375) internal successors, (99), 32 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 08:59:12,460 INFO L93 Difference]: Finished difference Result 271 states and 371 transitions. [2025-03-03 08:59:12,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-03 08:59:12,461 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.09375) internal successors, (99), 32 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2025-03-03 08:59:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 08:59:12,462 INFO L225 Difference]: With dead ends: 271 [2025-03-03 08:59:12,463 INFO L226 Difference]: Without dead ends: 250 [2025-03-03 08:59:12,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2025-03-03 08:59:12,464 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 94 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 08:59:12,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 172 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 08:59:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2025-03-03 08:59:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2025-03-03 08:59:12,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 244 states have (on average 1.2663934426229508) internal successors, (309), 245 states have internal predecessors, (309), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-03 08:59:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 315 transitions. [2025-03-03 08:59:12,482 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 315 transitions. Word has length 99 [2025-03-03 08:59:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 08:59:12,482 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 315 transitions. [2025-03-03 08:59:12,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.09375) internal successors, (99), 32 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 08:59:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 315 transitions. [2025-03-03 08:59:12,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-03 08:59:12,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 08:59:12,483 INFO L218 NwaCegarLoop]: trace histogram [46, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 08:59:12,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-03 08:59:12,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-03 08:59:12,684 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 08:59:12,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 08:59:12,685 INFO L85 PathProgramCache]: Analyzing trace with hash 130422350, now seen corresponding path program 5 times [2025-03-03 08:59:12,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 08:59:12,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957379843] [2025-03-03 08:59:12,685 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-03 08:59:12,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 08:59:12,718 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 147 statements into 31 equivalence classes. [2025-03-03 08:59:13,404 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) and asserted 147 of 147 statements. [2025-03-03 08:59:13,404 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 31 check-sat command(s) [2025-03-03 08:59:13,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 08:59:14,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2416 backedges. 0 proven. 1335 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2025-03-03 08:59:14,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 08:59:14,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957379843] [2025-03-03 08:59:14,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957379843] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 08:59:14,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613776263] [2025-03-03 08:59:14,254 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-03 08:59:14,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 08:59:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 08:59:14,256 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 08:59:14,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-03 08:59:14,415 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 147 statements into 31 equivalence classes.