./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB --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 3ab0e6b3adccdafccbf4f7749fddf566a909e7e6b26ed4ad49012db1c4c97a10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:18:06,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:18:06,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:18:06,353 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:18:06,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:18:06,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:18:06,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:18:06,383 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:18:06,383 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:18:06,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:18:06,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:18:06,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:18:06,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:18:06,384 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:18:06,384 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:18:06,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:18:06,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:18:06,386 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:06,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:06,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:18:06,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:18:06,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:18:06,387 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3ab0e6b3adccdafccbf4f7749fddf566a909e7e6b26ed4ad49012db1c4c97a10 [2024-11-28 03:18:06,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:18:06,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:18:06,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:18:06,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:18:06,726 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:18:06,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/heap-manipulation/tree-3.i [2024-11-28 03:18:09,670 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/data/f42cc8586/16c839f6a8b64161b7f31d752a7b195c/FLAGa7052682f [2024-11-28 03:18:09,978 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:18:09,978 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/sv-benchmarks/c/heap-manipulation/tree-3.i [2024-11-28 03:18:10,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/data/f42cc8586/16c839f6a8b64161b7f31d752a7b195c/FLAGa7052682f [2024-11-28 03:18:10,232 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/data/f42cc8586/16c839f6a8b64161b7f31d752a7b195c [2024-11-28 03:18:10,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:18:10,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:18:10,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:10,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:18:10,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:18:10,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6373a441 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10, skipping insertion in model container [2024-11-28 03:18:10,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:18:10,656 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/sv-benchmarks/c/heap-manipulation/tree-3.i[22626,22639] [2024-11-28 03:18:10,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:10,707 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:18:10,750 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/sv-benchmarks/c/heap-manipulation/tree-3.i[22626,22639] [2024-11-28 03:18:10,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:10,787 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:18:10,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10 WrapperNode [2024-11-28 03:18:10,788 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:10,789 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:10,789 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:18:10,789 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:18:10,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,851 INFO L138 Inliner]: procedures = 122, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2024-11-28 03:18:10,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:10,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:18:10,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:18:10,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:18:10,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,894 INFO L175 MemorySlicer]: Split 29 memory accesses to 2 slices as follows [2, 27]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 10 writes are split as follows [0, 10]. [2024-11-28 03:18:10,895 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,895 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,904 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:18:10,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:18:10,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:18:10,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:18:10,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (1/1) ... [2024-11-28 03:18:10,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:10,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:10,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:18:10,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:18:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:18:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 03:18:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-28 03:18:10,993 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-28 03:18:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:18:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 03:18:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:18:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:18:10,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:18:11,132 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:18:11,135 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:18:11,511 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-28 03:18:11,511 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:18:11,527 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:18:11,527 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-28 03:18:11,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:11 BoogieIcfgContainer [2024-11-28 03:18:11,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:18:11,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:18:11,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:18:11,538 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:18:11,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:10" (1/3) ... [2024-11-28 03:18:11,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28279b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:11, skipping insertion in model container [2024-11-28 03:18:11,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:10" (2/3) ... [2024-11-28 03:18:11,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28279b23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:11, skipping insertion in model container [2024-11-28 03:18:11,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:11" (3/3) ... [2024-11-28 03:18:11,544 INFO L128 eAbstractionObserver]: Analyzing ICFG tree-3.i [2024-11-28 03:18:11,561 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:18:11,564 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG tree-3.i that has 2 procedures, 52 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2024-11-28 03:18:11,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:18:11,636 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;@498bd0a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:18:11,638 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:18:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 50 states have internal predecessors, (76), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 03:18:11,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 03:18:11,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:11,650 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:11,651 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:11,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:11,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1126022488, now seen corresponding path program 1 times [2024-11-28 03:18:11,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:11,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929530454] [2024-11-28 03:18:11,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:11,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:11,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:11,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929530454] [2024-11-28 03:18:11,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929530454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:11,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:11,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:11,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714035329] [2024-11-28 03:18:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:11,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:18:11,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:11,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:18:11,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:18:11,878 INFO L87 Difference]: Start difference. First operand has 52 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 50 states have internal predecessors, (76), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2024-11-28 03:18:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:11,899 INFO L93 Difference]: Finished difference Result 100 states and 161 transitions. [2024-11-28 03:18:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:18:11,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 [2024-11-28 03:18:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:11,905 INFO L225 Difference]: With dead ends: 100 [2024-11-28 03:18:11,906 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 03:18:11,908 INFO L434 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 [2024-11-28 03:18:11,911 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:11,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:18:11,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 03:18:11,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 03:18:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2024-11-28 03:18:11,942 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 11 [2024-11-28 03:18:11,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:11,942 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2024-11-28 03:18:11,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2024-11-28 03:18:11,943 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-28 03:18:11,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:18:11,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:11,943 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:11,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:18:11,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:11,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:11,945 INFO L85 PathProgramCache]: Analyzing trace with hash 2069878193, now seen corresponding path program 1 times [2024-11-28 03:18:11,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:11,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273359352] [2024-11-28 03:18:11,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:11,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:12,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:12,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273359352] [2024-11-28 03:18:12,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273359352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:12,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:12,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:12,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103644430] [2024-11-28 03:18:12,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:12,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:12,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:12,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:12,070 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-28 03:18:12,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:12,133 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2024-11-28 03:18:12,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:12,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 12 [2024-11-28 03:18:12,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:12,136 INFO L225 Difference]: With dead ends: 65 [2024-11-28 03:18:12,136 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 03:18:12,137 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 [2024-11-28 03:18:12,137 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:12,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 72 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:12,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 03:18:12,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2024-11-28 03:18:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 38 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions. [2024-11-28 03:18:12,144 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 12 [2024-11-28 03:18:12,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:12,144 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions. [2024-11-28 03:18:12,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2024-11-28 03:18:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2024-11-28 03:18:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 03:18:12,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:12,145 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:12,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:18:12,146 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:12,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1260531567, now seen corresponding path program 1 times [2024-11-28 03:18:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:12,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947502296] [2024-11-28 03:18:12,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:12,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:12,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:12,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947502296] [2024-11-28 03:18:12,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947502296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:12,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:12,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:12,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081267505] [2024-11-28 03:18:12,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:12,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:12,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:12,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:12,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:12,303 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-11-28 03:18:12,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:12,377 INFO L93 Difference]: Finished difference Result 83 states and 101 transitions. [2024-11-28 03:18:12,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:12,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 12 [2024-11-28 03:18:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:12,380 INFO L225 Difference]: With dead ends: 83 [2024-11-28 03:18:12,380 INFO L226 Difference]: Without dead ends: 43 [2024-11-28 03:18:12,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:12,381 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:12,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 154 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:12,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-28 03:18:12,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-28 03:18:12,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 41 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2024-11-28 03:18:12,391 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 12 [2024-11-28 03:18:12,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:12,391 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2024-11-28 03:18:12,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-11-28 03:18:12,392 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2024-11-28 03:18:12,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 03:18:12,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:12,393 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:12,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:18:12,393 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:12,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:12,394 INFO L85 PathProgramCache]: Analyzing trace with hash -92615584, now seen corresponding path program 1 times [2024-11-28 03:18:12,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:12,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493227909] [2024-11-28 03:18:12,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:12,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:12,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:12,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:12,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493227909] [2024-11-28 03:18:12,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493227909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:12,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:12,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:12,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650851686] [2024-11-28 03:18:12,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:12,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:18:12,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:12,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:18:12,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:18:12,489 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-28 03:18:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:12,586 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2024-11-28 03:18:12,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:18:12,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 21 [2024-11-28 03:18:12,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:12,591 INFO L225 Difference]: With dead ends: 67 [2024-11-28 03:18:12,591 INFO L226 Difference]: Without dead ends: 46 [2024-11-28 03:18:12,591 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 [2024-11-28 03:18:12,592 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:12,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:18:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-28 03:18:12,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-11-28 03:18:12,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.205128205128205) internal successors, (47), 41 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:12,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2024-11-28 03:18:12,600 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 21 [2024-11-28 03:18:12,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:12,600 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2024-11-28 03:18:12,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-11-28 03:18:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2024-11-28 03:18:12,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 03:18:12,601 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:12,601 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:12,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:18:12,601 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:12,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1776050874, now seen corresponding path program 1 times [2024-11-28 03:18:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960563981] [2024-11-28 03:18:12,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:18:13,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:13,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960563981] [2024-11-28 03:18:13,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960563981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:13,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:13,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:18:13,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722746447] [2024-11-28 03:18:13,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:13,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:18:13,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:13,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:18:13,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:13,013 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2024-11-28 03:18:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:18:13,242 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2024-11-28 03:18:13,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:18:13,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 25 [2024-11-28 03:18:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:18:13,246 INFO L225 Difference]: With dead ends: 92 [2024-11-28 03:18:13,246 INFO L226 Difference]: Without dead ends: 57 [2024-11-28 03:18:13,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:13,248 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 57 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:18:13,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 126 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:18:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-28 03:18:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 42. [2024-11-28 03:18:13,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 40 states have internal predecessors, (45), 2 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) [2024-11-28 03:18:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2024-11-28 03:18:13,258 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 25 [2024-11-28 03:18:13,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:18:13,259 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2024-11-28 03:18:13,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2024-11-28 03:18:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2024-11-28 03:18:13,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:18:13,259 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:18:13,262 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:13,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:18:13,263 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONERROR_FUNCTION === [failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:18:13,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:13,263 INFO L85 PathProgramCache]: Analyzing trace with hash -960711190, now seen corresponding path program 1 times [2024-11-28 03:18:13,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:13,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781978916] [2024-11-28 03:18:13,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:13,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:15,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:15,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781978916] [2024-11-28 03:18:15,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781978916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:18:15,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858612207] [2024-11-28 03:18:15,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:15,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:18:15,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:15,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:18:15,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2938302-deb7-45db-a792-b1df45a43377/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:18:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:15,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-28 03:18:15,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:18:15,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-28 03:18:15,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-28 03:18:15,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,011 INFO L349 Elim1Store]: treesize reduction 211, result has 0.5 percent of original size [2024-11-28 03:18:16,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 12962 treesize of output 10481 [2024-11-28 03:18:16,072 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,159 INFO L349 Elim1Store]: treesize reduction 385, result has 0.3 percent of original size [2024-11-28 03:18:16,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 15701 treesize of output 12339 [2024-11-28 03:18:16,235 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,309 INFO L349 Elim1Store]: treesize reduction 385, result has 0.3 percent of original size [2024-11-28 03:18:16,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 17192 treesize of output 13414 [2024-11-28 03:18:16,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1133 treesize of output 933 [2024-11-28 03:18:16,520 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,539 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:16,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1389 treesize of output 1129 [2024-11-28 03:18:16,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1157 treesize of output 955 [2024-11-28 03:18:16,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,692 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,720 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:16,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,794 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-28 03:18:16,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 8166 treesize of output 6422 [2024-11-28 03:18:16,837 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:16,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:16,901 INFO L349 Elim1Store]: treesize reduction 293, result has 0.3 percent of original size [2024-11-28 03:18:16,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 7591 treesize of output 6023 [2024-11-28 03:18:16,948 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:21,820 INFO L349 Elim1Store]: treesize reduction 36, result has 33.3 percent of original size [2024-11-28 03:18:21,821 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 5182 treesize of output 4019 [2024-11-28 03:18:22,390 INFO L349 Elim1Store]: treesize reduction 48, result has 25.0 percent of original size [2024-11-28 03:18:22,390 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 500 treesize of output 465 [2024-11-28 03:18:22,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,448 INFO L349 Elim1Store]: treesize reduction 165, result has 0.6 percent of original size [2024-11-28 03:18:22,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 355 treesize of output 417 [2024-11-28 03:18:22,463 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,476 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,548 INFO L349 Elim1Store]: treesize reduction 242, result has 21.9 percent of original size [2024-11-28 03:18:22,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 306 [2024-11-28 03:18:22,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 164 treesize of output 49 [2024-11-28 03:18:22,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:22,724 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,726 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,731 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 153 [2024-11-28 03:18:22,747 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:22,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 40 [2024-11-28 03:18:22,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 9 [2024-11-28 03:18:23,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:23,094 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 18 [2024-11-28 03:18:23,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 264 treesize of output 236 [2024-11-28 03:18:23,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 409 treesize of output 366 [2024-11-28 03:18:23,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 16 treesize of output 14 [2024-11-28 03:18:23,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:23,233 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-28 03:18:23,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 6491 treesize of output 4975 [2024-11-28 03:18:23,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:23,281 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-28 03:18:23,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 6088 treesize of output 4700 [2024-11-28 03:18:23,305 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:23,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:24,655 INFO L349 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2024-11-28 03:18:24,656 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 5252 treesize of output 4051 [2024-11-28 03:18:24,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:24,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:24,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 481 treesize of output 412 [2024-11-28 03:18:24,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 412 treesize of output 399 [2024-11-28 03:18:24,757 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:24,764 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:24,765 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:24,797 INFO L349 Elim1Store]: treesize reduction 290, result has 1.7 percent of original size [2024-11-28 03:18:24,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 247 treesize of output 323 [2024-11-28 03:18:24,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2024-11-28 03:18:24,848 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:24,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 30 [2024-11-28 03:18:25,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:25,353 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-28 03:18:25,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 5863 treesize of output 4549 [2024-11-28 03:18:25,381 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:25,422 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-28 03:18:25,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 6266 treesize of output 4824 [2024-11-28 03:18:25,445 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:25,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:26,322 INFO L349 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2024-11-28 03:18:26,322 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 5066 treesize of output 3921 [2024-11-28 03:18:26,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:26,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:26,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 481 treesize of output 412 [2024-11-28 03:18:26,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 412 treesize of output 399 [2024-11-28 03:18:26,401 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,411 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,413 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,443 INFO L349 Elim1Store]: treesize reduction 290, result has 1.7 percent of original size [2024-11-28 03:18:26,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 247 treesize of output 323 [2024-11-28 03:18:26,468 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 30 [2024-11-28 03:18:26,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2024-11-28 03:18:26,599 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,600 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,601 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:26,606 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:26,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:27,010 INFO L349 Elim1Store]: treesize reduction 385, result has 0.3 percent of original size [2024-11-28 03:18:27,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 15244 treesize of output 12002 [2024-11-28 03:18:27,044 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:27,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:27,103 INFO L349 Elim1Store]: treesize reduction 385, result has 0.3 percent of original size [2024-11-28 03:18:27,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 16735 treesize of output 13077 [2024-11-28 03:18:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:27,176 INFO L349 Elim1Store]: treesize reduction 211, result has 0.5 percent of original size [2024-11-28 03:18:27,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 12704 treesize of output 10287 [2024-11-28 03:18:27,195 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:27,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:27,238 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-28 03:18:27,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 6491 treesize of output 4975 [2024-11-28 03:18:27,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:27,284 INFO L349 Elim1Store]: treesize reduction 213, result has 0.5 percent of original size [2024-11-28 03:18:27,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 6088 treesize of output 4700 [2024-11-28 03:18:27,306 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:27,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,007 INFO L349 Elim1Store]: treesize reduction 49, result has 9.3 percent of original size [2024-11-28 03:18:28,008 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 5252 treesize of output 4051 [2024-11-28 03:18:28,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 481 treesize of output 412 [2024-11-28 03:18:28,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,059 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,060 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,063 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 333 treesize of output 372 [2024-11-28 03:18:28,076 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,084 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,085 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,108 INFO L349 Elim1Store]: treesize reduction 225, result has 2.2 percent of original size [2024-11-28 03:18:28,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 258 [2024-11-28 03:18:28,128 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 30 [2024-11-28 03:18:28,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2024-11-28 03:18:28,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,176 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,177 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:18:28,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 215 treesize of output 109 [2024-11-28 03:18:28,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,602 INFO L349 Elim1Store]: treesize reduction 211, result has 0.5 percent of original size [2024-11-28 03:18:28,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 6564 treesize of output 5087 [2024-11-28 03:18:28,619 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:28,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,667 INFO L349 Elim1Store]: treesize reduction 385, result has 0.3 percent of original size [2024-11-28 03:18:28,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 18340 treesize of output 14182 [2024-11-28 03:18:28,696 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:18:28,744 INFO L349 Elim1Store]: treesize reduction 385, result has 0.3 percent of original size [2024-11-28 03:18:28,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 7914 treesize of output 6125 [2024-11-28 03:18:28,766 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-28 03:18:34,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:23,118 WARN L286 SmtUtils]: Spent 2.81m on a formula simplification. DAG size of input: 55 DAG size of output: 51 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-28 03:21:23,118 INFO L349 Elim1Store]: treesize reduction 8, result has 92.4 percent of original size [2024-11-28 03:21:23,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 16944 treesize of output 13937 [2024-11-28 03:21:23,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:21:23,288 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 4079 treesize of output 3671 [2024-11-28 03:21:23,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:23,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1759 treesize of output 1843 [2024-11-28 03:21:23,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1485 treesize of output 1469 [2024-11-28 03:21:23,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1550 treesize of output 1524 [2024-11-28 03:21:23,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1457 treesize of output 1441 [2024-11-28 03:21:23,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1520 treesize of output 1494 [2024-11-28 03:21:24,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1550 treesize of output 1504 [2024-11-28 03:21:24,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1405 treesize of output 1403 [2024-11-28 03:21:24,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1478 treesize of output 1436 [2024-11-28 03:21:24,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1490 treesize of output 1432 [2024-11-28 03:21:24,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1450 treesize of output 1398 [2024-11-28 03:21:24,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1309 treesize of output 1307 [2024-11-28 03:21:24,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1307 treesize of output 1305 [2024-11-28 03:21:24,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1305 treesize of output 1303 [2024-11-28 03:21:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:21:25,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:25,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:25,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 15662 treesize of output 14262 [2024-11-28 03:21:27,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 5528 treesize of output 4660 [2024-11-28 03:21:27,685 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:27,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 8176 treesize of output 8177 [2024-11-28 03:21:32,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 977 treesize of output 543 [2024-11-28 03:21:32,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1849 treesize of output 1198 [2024-11-28 03:21:32,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:21:32,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 4009 treesize of output 5529 [2024-11-28 03:22:43,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:22:43,205 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 7648 treesize of output 7215 [2024-11-28 03:22:44,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:22:44,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 7758 treesize of output 7759 [2024-11-28 03:23:03,934 WARN L286 SmtUtils]: Spent 16.05s on a formula simplification that was a NOOP. DAG size: 347 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2024-11-28 03:23:03,934 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:23:03,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 13595 treesize of output 34862 [2024-11-28 03:23:04,638 INFO L224 Elim1Store]: Index analysis took 384 ms [2024-11-28 03:23:09,119 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:23:09,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 34515 treesize of output 59254