./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.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 a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 18:02:27,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 18:02:27,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 18:02:27,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 18:02:27,688 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 18:02:27,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 18:02:27,709 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 18:02:27,710 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 18:02:27,710 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 18:02:27,713 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 18:02:27,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 18:02:27,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 18:02:27,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 18:02:27,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 18:02:27,715 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 18:02:27,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 18:02:27,715 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 18:02:27,715 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 18:02:27,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 18:02:27,716 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 18:02:27,716 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 18:02:27,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 18:02:27,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 18:02:27,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 18:02:27,717 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 18:02:27,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 18:02:27,717 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 18:02:27,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 18:02:27,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 18:02:27,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 18:02:27,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 18:02:27,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:02:27,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 18:02:27,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 18:02:27,720 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 18:02:27,720 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 18:02:27,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 18:02:27,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 18:02:27,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 18:02:27,720 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 18:02:27,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 18:02:27,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 18:02:27,721 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38de44f112a10364737c35b840e673503a211a020b9f494a50e4a32c8fe31c0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 18:02:27,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 18:02:27,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 18:02:27,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 18:02:27,942 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 18:02:27,942 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 18:02:27,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2023-11-22 18:02:28,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 18:02:29,050 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 18:02:29,051 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i [2023-11-22 18:02:29,064 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deca4b08a/9715cee1e36c42a9808b70590d3e5cff/FLAG714e68d77 [2023-11-22 18:02:29,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/deca4b08a/9715cee1e36c42a9808b70590d3e5cff [2023-11-22 18:02:29,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 18:02:29,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 18:02:29,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 18:02:29,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 18:02:29,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 18:02:29,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b09c1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29, skipping insertion in model container [2023-11-22 18:02:29,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,111 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 18:02:29,317 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2023-11-22 18:02:29,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:02:29,345 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 18:02:29,374 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/heap-manipulation/bubble_sort_linux-1.i[33822,33835] [2023-11-22 18:02:29,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 18:02:29,453 INFO L206 MainTranslator]: Completed translation [2023-11-22 18:02:29,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29 WrapperNode [2023-11-22 18:02:29,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 18:02:29,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 18:02:29,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 18:02:29,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 18:02:29,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,486 INFO L138 Inliner]: procedures = 232, calls = 75, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 118 [2023-11-22 18:02:29,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 18:02:29,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 18:02:29,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 18:02:29,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 18:02:29,504 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,508 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,529 INFO L189 HeapSplitter]: Split 37 memory accesses to 2 slices as follows [2, 35] [2023-11-22 18:02:29,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,549 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 18:02:29,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 18:02:29,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 18:02:29,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 18:02:29,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (1/1) ... [2023-11-22 18:02:29,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 18:02:29,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:02:29,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 18:02:29,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 18:02:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 18:02:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 18:02:29,616 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2023-11-22 18:02:29,616 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2023-11-22 18:02:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 18:02:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-22 18:02:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-22 18:02:29,617 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2023-11-22 18:02:29,618 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2023-11-22 18:02:29,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 18:02:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 18:02:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-11-22 18:02:29,619 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-11-22 18:02:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 18:02:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 18:02:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 18:02:29,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 18:02:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 18:02:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 18:02:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-22 18:02:29,620 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-22 18:02:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 18:02:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 18:02:29,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 18:02:29,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 18:02:29,743 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 18:02:29,744 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 18:02:29,966 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 18:02:30,005 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 18:02:30,006 INFO L309 CfgBuilder]: Removed 41 assume(true) statements. [2023-11-22 18:02:30,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:02:30 BoogieIcfgContainer [2023-11-22 18:02:30,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 18:02:30,008 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 18:02:30,008 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 18:02:30,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 18:02:30,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:02:29" (1/3) ... [2023-11-22 18:02:30,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c1737b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:02:30, skipping insertion in model container [2023-11-22 18:02:30,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:02:29" (2/3) ... [2023-11-22 18:02:30,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c1737b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:02:30, skipping insertion in model container [2023-11-22 18:02:30,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:02:30" (3/3) ... [2023-11-22 18:02:30,012 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-1.i [2023-11-22 18:02:30,023 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 18:02:30,023 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 18:02:30,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 18:02:30,061 INFO L357 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, mHoare=true, 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;@4a23192b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 18:02:30,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 18:02:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 78 states have (on average 1.8461538461538463) internal successors, (144), 97 states have internal predecessors, (144), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-22 18:02:30,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-22 18:02:30,068 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:30,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:30,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:30,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:30,072 INFO L85 PathProgramCache]: Analyzing trace with hash -754496073, now seen corresponding path program 1 times [2023-11-22 18:02:30,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:30,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216880148] [2023-11-22 18:02:30,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:30,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:30,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216880148] [2023-11-22 18:02:30,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216880148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:30,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:30,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-22 18:02:30,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455523227] [2023-11-22 18:02:30,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:30,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-22 18:02:30,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:30,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-22 18:02:30,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 18:02:30,205 INFO L87 Difference]: Start difference. First operand has 107 states, 78 states have (on average 1.8461538461538463) internal successors, (144), 97 states have internal predecessors, (144), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 18:02:30,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:30,332 INFO L93 Difference]: Finished difference Result 210 states and 377 transitions. [2023-11-22 18:02:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-22 18:02:30,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 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 8 [2023-11-22 18:02:30,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:30,342 INFO L225 Difference]: With dead ends: 210 [2023-11-22 18:02:30,342 INFO L226 Difference]: Without dead ends: 99 [2023-11-22 18:02:30,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-22 18:02:30,361 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:30,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-22 18:02:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-22 18:02:30,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2023-11-22 18:02:30,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 89 states have internal predecessors, (94), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-22 18:02:30,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 120 transitions. [2023-11-22 18:02:30,408 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 120 transitions. Word has length 8 [2023-11-22 18:02:30,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:30,408 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 120 transitions. [2023-11-22 18:02:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-22 18:02:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 120 transitions. [2023-11-22 18:02:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-22 18:02:30,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:30,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:30,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 18:02:30,411 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:30,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 437181209, now seen corresponding path program 1 times [2023-11-22 18:02:30,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:30,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008574776] [2023-11-22 18:02:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:30,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:30,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:30,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:30,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008574776] [2023-11-22 18:02:30,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008574776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:30,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:30,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 18:02:30,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248190034] [2023-11-22 18:02:30,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:30,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 18:02:30,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:30,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 18:02:30,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-22 18:02:30,658 INFO L87 Difference]: Start difference. First operand 99 states and 120 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:30,962 INFO L93 Difference]: Finished difference Result 101 states and 121 transitions. [2023-11-22 18:02:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 18:02:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-22 18:02:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:30,965 INFO L225 Difference]: With dead ends: 101 [2023-11-22 18:02:30,965 INFO L226 Difference]: Without dead ends: 98 [2023-11-22 18:02:30,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-22 18:02:30,969 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 233 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:30,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 87 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-22 18:02:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-22 18:02:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-22 18:02:30,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 88 states have internal predecessors, (93), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-22 18:02:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 118 transitions. [2023-11-22 18:02:30,989 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 118 transitions. Word has length 17 [2023-11-22 18:02:30,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:30,990 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 118 transitions. [2023-11-22 18:02:30,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 118 transitions. [2023-11-22 18:02:30,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-22 18:02:30,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:30,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:30,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 18:02:30,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:30,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:30,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1443607003, now seen corresponding path program 1 times [2023-11-22 18:02:30,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:30,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77843889] [2023-11-22 18:02:30,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:30,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:31,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:31,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:31,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:31,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:31,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77843889] [2023-11-22 18:02:31,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77843889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:31,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:31,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:02:31,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992429612] [2023-11-22 18:02:31,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:31,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 18:02:31,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:31,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 18:02:31,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:02:31,534 INFO L87 Difference]: Start difference. First operand 98 states and 118 transitions. Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:32,320 INFO L93 Difference]: Finished difference Result 187 states and 224 transitions. [2023-11-22 18:02:32,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 18:02:32,321 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-22 18:02:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:32,323 INFO L225 Difference]: With dead ends: 187 [2023-11-22 18:02:32,323 INFO L226 Difference]: Without dead ends: 181 [2023-11-22 18:02:32,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2023-11-22 18:02:32,324 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 462 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:32,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 122 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 18:02:32,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-22 18:02:32,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 161. [2023-11-22 18:02:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 133 states have (on average 1.263157894736842) internal successors, (168), 147 states have internal predecessors, (168), 23 states have call successors, (23), 6 states have call predecessors, (23), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-22 18:02:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 198 transitions. [2023-11-22 18:02:32,363 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 198 transitions. Word has length 20 [2023-11-22 18:02:32,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:32,363 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 198 transitions. [2023-11-22 18:02:32,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.6) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:32,364 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 198 transitions. [2023-11-22 18:02:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-22 18:02:32,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:32,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:32,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 18:02:32,365 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:32,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash 722118342, now seen corresponding path program 1 times [2023-11-22 18:02:32,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:32,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023088988] [2023-11-22 18:02:32,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:32,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:32,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:32,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:32,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023088988] [2023-11-22 18:02:32,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023088988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:32,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:32,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 18:02:32,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315041349] [2023-11-22 18:02:32,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:32,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-22 18:02:32,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-22 18:02:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-22 18:02:32,985 INFO L87 Difference]: Start difference. First operand 161 states and 198 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:33,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:33,676 INFO L93 Difference]: Finished difference Result 259 states and 314 transitions. [2023-11-22 18:02:33,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 18:02:33,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-22 18:02:33,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:33,678 INFO L225 Difference]: With dead ends: 259 [2023-11-22 18:02:33,678 INFO L226 Difference]: Without dead ends: 256 [2023-11-22 18:02:33,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-11-22 18:02:33,679 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 299 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:33,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 160 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 18:02:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-22 18:02:33,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2023-11-22 18:02:33,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.2561576354679802) internal successors, (255), 218 states have internal predecessors, (255), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 18:02:33,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 294 transitions. [2023-11-22 18:02:33,705 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 294 transitions. Word has length 23 [2023-11-22 18:02:33,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:33,706 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 294 transitions. [2023-11-22 18:02:33,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 7 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:33,706 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 294 transitions. [2023-11-22 18:02:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-22 18:02:33,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:33,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:33,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 18:02:33,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:33,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:33,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1115915285, now seen corresponding path program 1 times [2023-11-22 18:02:33,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:33,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818287721] [2023-11-22 18:02:33,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:33,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:34,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:34,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818287721] [2023-11-22 18:02:34,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818287721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:34,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:34,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-22 18:02:34,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091145221] [2023-11-22 18:02:34,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:34,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 18:02:34,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:34,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 18:02:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-22 18:02:34,253 INFO L87 Difference]: Start difference. First operand 238 states and 294 transitions. Second operand has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:35,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:35,065 INFO L93 Difference]: Finished difference Result 258 states and 312 transitions. [2023-11-22 18:02:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-22 18:02:35,066 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-22 18:02:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:35,067 INFO L225 Difference]: With dead ends: 258 [2023-11-22 18:02:35,067 INFO L226 Difference]: Without dead ends: 255 [2023-11-22 18:02:35,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2023-11-22 18:02:35,068 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 360 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 1008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:35,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 160 Invalid, 1008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-22 18:02:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-11-22 18:02:35,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 238. [2023-11-22 18:02:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.251231527093596) internal successors, (254), 218 states have internal predecessors, (254), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 18:02:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 293 transitions. [2023-11-22 18:02:35,094 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 293 transitions. Word has length 26 [2023-11-22 18:02:35,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:35,095 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 293 transitions. [2023-11-22 18:02:35,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:35,096 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 293 transitions. [2023-11-22 18:02:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-22 18:02:35,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:35,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:35,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 18:02:35,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:35,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:35,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1422251983, now seen corresponding path program 1 times [2023-11-22 18:02:35,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:35,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318472251] [2023-11-22 18:02:35,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:35,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:35,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:35,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:35,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318472251] [2023-11-22 18:02:35,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318472251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:35,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:35,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-22 18:02:35,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256953251] [2023-11-22 18:02:35,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:35,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 18:02:35,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:35,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 18:02:35,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-22 18:02:35,720 INFO L87 Difference]: Start difference. First operand 238 states and 293 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:36,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:36,487 INFO L93 Difference]: Finished difference Result 257 states and 310 transitions. [2023-11-22 18:02:36,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-22 18:02:36,487 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-22 18:02:36,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:36,488 INFO L225 Difference]: With dead ends: 257 [2023-11-22 18:02:36,488 INFO L226 Difference]: Without dead ends: 254 [2023-11-22 18:02:36,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2023-11-22 18:02:36,489 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 332 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:36,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 176 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1058 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-22 18:02:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-22 18:02:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 238. [2023-11-22 18:02:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.2463054187192117) internal successors, (253), 218 states have internal predecessors, (253), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 18:02:36,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 292 transitions. [2023-11-22 18:02:36,509 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 292 transitions. Word has length 29 [2023-11-22 18:02:36,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:36,509 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 292 transitions. [2023-11-22 18:02:36,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:36,510 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 292 transitions. [2023-11-22 18:02:36,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-22 18:02:36,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:36,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:36,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 18:02:36,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:36,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash -678942440, now seen corresponding path program 1 times [2023-11-22 18:02:36,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:36,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948919421] [2023-11-22 18:02:36,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:36,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:37,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-22 18:02:37,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:37,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948919421] [2023-11-22 18:02:37,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948919421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 18:02:37,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 18:02:37,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-22 18:02:37,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506965342] [2023-11-22 18:02:37,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 18:02:37,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 18:02:37,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 18:02:37,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 18:02:37,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-11-22 18:02:37,302 INFO L87 Difference]: Start difference. First operand 238 states and 292 transitions. Second operand has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:38,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 18:02:38,276 INFO L93 Difference]: Finished difference Result 256 states and 308 transitions. [2023-11-22 18:02:38,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-22 18:02:38,277 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2023-11-22 18:02:38,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 18:02:38,278 INFO L225 Difference]: With dead ends: 256 [2023-11-22 18:02:38,278 INFO L226 Difference]: Without dead ends: 253 [2023-11-22 18:02:38,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2023-11-22 18:02:38,279 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 331 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-22 18:02:38,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 208 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-22 18:02:38,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-22 18:02:38,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 238. [2023-11-22 18:02:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 203 states have (on average 1.2413793103448276) internal successors, (252), 218 states have internal predecessors, (252), 28 states have call successors, (28), 8 states have call predecessors, (28), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-22 18:02:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 291 transitions. [2023-11-22 18:02:38,308 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 291 transitions. Word has length 32 [2023-11-22 18:02:38,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 18:02:38,308 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 291 transitions. [2023-11-22 18:02:38,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 10 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-22 18:02:38,308 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 291 transitions. [2023-11-22 18:02:38,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-22 18:02:38,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 18:02:38,309 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 18:02:38,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 18:02:38,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 18:02:38,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 18:02:38,310 INFO L85 PathProgramCache]: Analyzing trace with hash -58033664, now seen corresponding path program 1 times [2023-11-22 18:02:38,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 18:02:38,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271138079] [2023-11-22 18:02:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:38,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 18:02:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-22 18:02:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:39,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 18:02:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:39,097 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-22 18:02:39,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 18:02:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271138079] [2023-11-22 18:02:39,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271138079] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 18:02:39,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339278259] [2023-11-22 18:02:39,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 18:02:39,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 18:02:39,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 18:02:39,100 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) [2023-11-22 18:02:39,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 18:02:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 18:02:39,249 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 78 conjunts are in the unsatisfiable core [2023-11-22 18:02:39,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 18:02:39,330 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 18:02:39,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-22 18:02:39,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-22 18:02:39,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-22 18:02:39,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 90 [2023-11-22 18:02:39,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 65 [2023-11-22 18:02:39,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:02:39,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 47 [2023-11-22 18:02:39,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2023-11-22 18:02:39,716 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-22 18:02:39,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 33 [2023-11-22 18:02:39,770 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 18:02:39,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-22 18:02:39,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 19 [2023-11-22 18:02:39,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2023-11-22 18:02:39,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2023-11-22 18:02:39,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2023-11-22 18:02:39,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 45 [2023-11-22 18:02:39,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2023-11-22 18:02:44,139 INFO L349 Elim1Store]: treesize reduction 215, result has 4.9 percent of original size [2023-11-22 18:02:44,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 8 case distinctions, treesize of input 176 treesize of output 443 [2023-11-22 18:02:44,267 WARN L200 Elim1Store]: Array PQE input equivalent to false [2023-11-22 18:02:44,287 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-22 18:02:44,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:02:44,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:02:44,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:02:45,370 INFO L349 Elim1Store]: treesize reduction 21645, result has 0.0 percent of original size [2023-11-22 18:02:45,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 26 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 34 new quantified variables, introduced 233 case distinctions, treesize of input 234113 treesize of output 225517 [2023-11-22 18:03:01,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:03:01,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:03:01,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 18:03:04,147 INFO L224 Elim1Store]: Index analysis took 214 ms Killed by 15