./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/discover_list.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/discover_list.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2aca78a4c905fef1e916fc947a81c98263f5056a4b2b5d7ea35195ed74fad5a5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 06:49:07,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 06:49:07,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 06:49:07,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 06:49:07,511 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 06:49:07,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 06:49:07,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 06:49:07,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 06:49:07,534 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 06:49:07,535 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 06:49:07,535 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 06:49:07,535 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 06:49:07,536 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 06:49:07,536 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 06:49:07,537 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 06:49:07,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 06:49:07,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 06:49:07,538 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 06:49:07,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 06:49:07,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 06:49:07,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 06:49:07,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 06:49:07,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 06:49:07,540 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 06:49:07,540 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 06:49:07,541 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 06:49:07,541 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 06:49:07,541 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 06:49:07,542 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 06:49:07,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 06:49:07,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 06:49:07,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 06:49:07,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 06:49:07,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 06:49:07,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 06:49:07,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 06:49:07,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 06:49:07,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 06:49:07,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 06:49:07,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 06:49:07,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 06:49:07,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 06:49:07,547 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aca78a4c905fef1e916fc947a81c98263f5056a4b2b5d7ea35195ed74fad5a5 [2024-11-16 06:49:07,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 06:49:07,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 06:49:07,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 06:49:07,926 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 06:49:07,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 06:49:07,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/discover_list.c [2024-11-16 06:49:09,326 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 06:49:09,551 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 06:49:09,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/discover_list.c [2024-11-16 06:49:09,563 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2db740a1b/a7d1ac3d2a9c40a09c66a09f70ec529c/FLAG3ede7b5a7 [2024-11-16 06:49:09,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2db740a1b/a7d1ac3d2a9c40a09c66a09f70ec529c [2024-11-16 06:49:09,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 06:49:09,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 06:49:09,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 06:49:09,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 06:49:09,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 06:49:09,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:49:09" (1/1) ... [2024-11-16 06:49:09,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12fb9726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:09, skipping insertion in model container [2024-11-16 06:49:09,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 06:49:09" (1/1) ... [2024-11-16 06:49:09,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 06:49:09,893 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/discover_list.c[5067,5080] [2024-11-16 06:49:09,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 06:49:10,002 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 06:49:10,030 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/discover_list.c[5067,5080] [2024-11-16 06:49:10,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 06:49:10,119 INFO L204 MainTranslator]: Completed translation [2024-11-16 06:49:10,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10 WrapperNode [2024-11-16 06:49:10,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 06:49:10,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 06:49:10,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 06:49:10,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 06:49:10,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,190 INFO L138 Inliner]: procedures = 37, calls = 248, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 511 [2024-11-16 06:49:10,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 06:49:10,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 06:49:10,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 06:49:10,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 06:49:10,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,235 INFO L175 MemorySlicer]: Split 181 memory accesses to 7 slices as follows [2, 10, 12, 4, 100, 11, 42]. 55 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 148 writes are split as follows [0, 0, 0, 1, 97, 11, 39]. [2024-11-16 06:49:10,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,253 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 06:49:10,268 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 06:49:10,268 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 06:49:10,268 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 06:49:10,269 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (1/1) ... [2024-11-16 06:49:10,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 06:49:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:49:10,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 06:49:10,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 06:49:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 06:49:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-16 06:49:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-16 06:49:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 06:49:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 06:49:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-16 06:49:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-16 06:49:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-16 06:49:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-16 06:49:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-16 06:49:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-16 06:49:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-16 06:49:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-16 06:49:10,394 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 06:49:10,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 06:49:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 06:49:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 06:49:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 06:49:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-16 06:49:10,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-16 06:49:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 06:49:10,591 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 06:49:10,595 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 06:49:11,458 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L475: havoc do_discover_list_#t~mem97#1; [2024-11-16 06:49:11,459 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L419: call ULTIMATE.dealloc(do_discover_list_~#smp_req~0#1.base, do_discover_list_~#smp_req~0#1.offset);havoc do_discover_list_~#smp_req~0#1.base, do_discover_list_~#smp_req~0#1.offset;call ULTIMATE.dealloc(do_discover_list_~#smp_rr~0#1.base, do_discover_list_~#smp_rr~0#1.offset);havoc do_discover_list_~#smp_rr~0#1.base, do_discover_list_~#smp_rr~0#1.offset; [2024-11-16 06:49:11,459 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L495: call ULTIMATE.dealloc(main_~#tobj~0#1.base, main_~#tobj~0#1.offset);havoc main_~#tobj~0#1.base, main_~#tobj~0#1.offset;call ULTIMATE.dealloc(main_~#opts~0#1.base, main_~#opts~0#1.offset);havoc main_~#opts~0#1.base, main_~#opts~0#1.offset; [2024-11-16 06:49:11,459 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L108: havoc smp_send_req_#t~nondet4#1; [2024-11-16 06:49:11,459 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L489: havoc do_discover_list_#t~mem102#1; [2024-11-16 06:49:11,539 INFO L? ?]: Removed 109 outVars from TransFormulas that were not future-live. [2024-11-16 06:49:11,540 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 06:49:11,564 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 06:49:11,565 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 06:49:11,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:49:11 BoogieIcfgContainer [2024-11-16 06:49:11,566 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 06:49:11,569 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 06:49:11,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 06:49:11,574 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 06:49:11,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 06:49:09" (1/3) ... [2024-11-16 06:49:11,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253b0332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:49:11, skipping insertion in model container [2024-11-16 06:49:11,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 06:49:10" (2/3) ... [2024-11-16 06:49:11,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253b0332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 06:49:11, skipping insertion in model container [2024-11-16 06:49:11,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 06:49:11" (3/3) ... [2024-11-16 06:49:11,579 INFO L112 eAbstractionObserver]: Analyzing ICFG discover_list.c [2024-11-16 06:49:11,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 06:49:11,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 06:49:11,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 06:49:11,683 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;@6f81017d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 06:49:11,684 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 06:49:11,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 80 states have internal predecessors, (118), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:49:11,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 06:49:11,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:49:11,700 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:49:11,701 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:49:11,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:49:11,708 INFO L85 PathProgramCache]: Analyzing trace with hash 999900419, now seen corresponding path program 1 times [2024-11-16 06:49:11,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:49:11,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393032189] [2024-11-16 06:49:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:49:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:49:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:13,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 06:49:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 06:49:13,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:49:13,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393032189] [2024-11-16 06:49:13,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393032189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 06:49:13,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 06:49:13,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 06:49:13,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318697188] [2024-11-16 06:49:13,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 06:49:13,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 06:49:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:49:13,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 06:49:13,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 06:49:13,527 INFO L87 Difference]: Start difference. First operand has 92 states, 79 states have (on average 1.4936708860759493) internal successors, (118), 80 states have internal predecessors, (118), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 06:49:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:49:13,869 INFO L93 Difference]: Finished difference Result 216 states and 327 transitions. [2024-11-16 06:49:13,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 06:49:13,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2024-11-16 06:49:13,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:49:13,882 INFO L225 Difference]: With dead ends: 216 [2024-11-16 06:49:13,883 INFO L226 Difference]: Without dead ends: 109 [2024-11-16 06:49:13,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-16 06:49:13,893 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 77 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 06:49:13,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 720 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 06:49:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-16 06:49:13,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 78. [2024-11-16 06:49:13,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 66 states have (on average 1.3181818181818181) internal successors, (87), 66 states have internal predecessors, (87), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:49:13,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2024-11-16 06:49:13,942 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 103 transitions. Word has length 40 [2024-11-16 06:49:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:49:13,942 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 103 transitions. [2024-11-16 06:49:13,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 06:49:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 103 transitions. [2024-11-16 06:49:13,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 06:49:13,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:49:13,946 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:49:13,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 06:49:13,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:49:13,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:49:13,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1344766622, now seen corresponding path program 1 times [2024-11-16 06:49:13,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:49:13,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897122055] [2024-11-16 06:49:13,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:13,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:49:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:15,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:49:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:15,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 06:49:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 06:49:15,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:49:15,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897122055] [2024-11-16 06:49:15,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897122055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 06:49:15,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 06:49:15,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 06:49:15,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611705016] [2024-11-16 06:49:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 06:49:15,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 06:49:15,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:49:15,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 06:49:15,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 06:49:15,181 INFO L87 Difference]: Start difference. First operand 78 states and 103 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-16 06:49:15,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:49:15,343 INFO L93 Difference]: Finished difference Result 127 states and 168 transitions. [2024-11-16 06:49:15,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 06:49:15,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-16 06:49:15,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:49:15,345 INFO L225 Difference]: With dead ends: 127 [2024-11-16 06:49:15,345 INFO L226 Difference]: Without dead ends: 84 [2024-11-16 06:49:15,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-16 06:49:15,347 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 33 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 06:49:15,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 347 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 06:49:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-16 06:49:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 78. [2024-11-16 06:49:15,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:49:15,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2024-11-16 06:49:15,360 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 102 transitions. Word has length 40 [2024-11-16 06:49:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:49:15,361 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 102 transitions. [2024-11-16 06:49:15,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-16 06:49:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 102 transitions. [2024-11-16 06:49:15,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 06:49:15,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:49:15,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:49:15,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 06:49:15,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:49:15,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:49:15,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1953128321, now seen corresponding path program 1 times [2024-11-16 06:49:15,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:49:15,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677270490] [2024-11-16 06:49:15,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:15,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:49:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:16,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:49:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:16,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-16 06:49:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 06:49:16,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:49:16,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677270490] [2024-11-16 06:49:16,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677270490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 06:49:16,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 06:49:16,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 06:49:16,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680576991] [2024-11-16 06:49:16,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 06:49:16,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 06:49:16,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:49:16,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 06:49:16,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 06:49:16,434 INFO L87 Difference]: Start difference. First operand 78 states and 102 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-16 06:49:16,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:49:16,586 INFO L93 Difference]: Finished difference Result 143 states and 189 transitions. [2024-11-16 06:49:16,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 06:49:16,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2024-11-16 06:49:16,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:49:16,587 INFO L225 Difference]: With dead ends: 143 [2024-11-16 06:49:16,588 INFO L226 Difference]: Without dead ends: 82 [2024-11-16 06:49:16,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 06:49:16,589 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 32 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 06:49:16,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 364 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 06:49:16,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-16 06:49:16,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2024-11-16 06:49:16,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:49:16,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2024-11-16 06:49:16,602 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 40 [2024-11-16 06:49:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:49:16,602 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2024-11-16 06:49:16,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-16 06:49:16,603 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2024-11-16 06:49:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-16 06:49:16,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:49:16,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:49:16,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 06:49:16,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:49:16,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:49:16,606 INFO L85 PathProgramCache]: Analyzing trace with hash 888939967, now seen corresponding path program 1 times [2024-11-16 06:49:16,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:49:16,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949521597] [2024-11-16 06:49:16,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:16,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:49:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:17,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:49:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:17,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 06:49:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:17,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 06:49:17,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:49:17,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949521597] [2024-11-16 06:49:17,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949521597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 06:49:17,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182819672] [2024-11-16 06:49:17,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:17,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:49:17,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:49:17,851 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 06:49:17,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 06:49:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:18,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-16 06:49:18,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 06:49:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 06:49:18,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 06:49:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:49:18,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182819672] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 06:49:18,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 06:49:18,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 6] total 12 [2024-11-16 06:49:18,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405585004] [2024-11-16 06:49:18,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 06:49:18,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 06:49:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:49:19,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 06:49:19,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 06:49:19,000 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 06:49:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:49:19,021 INFO L93 Difference]: Finished difference Result 121 states and 159 transitions. [2024-11-16 06:49:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 06:49:19,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-16 06:49:19,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:49:19,022 INFO L225 Difference]: With dead ends: 121 [2024-11-16 06:49:19,022 INFO L226 Difference]: Without dead ends: 80 [2024-11-16 06:49:19,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 06:49:19,024 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 0 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 06:49:19,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 06:49:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-16 06:49:19,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-11-16 06:49:19,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:49:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 104 transitions. [2024-11-16 06:49:19,039 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 104 transitions. Word has length 41 [2024-11-16 06:49:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:49:19,040 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 104 transitions. [2024-11-16 06:49:19,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-16 06:49:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 104 transitions. [2024-11-16 06:49:19,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-16 06:49:19,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:49:19,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:49:19,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 06:49:19,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:49:19,243 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:49:19,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:49:19,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1577429887, now seen corresponding path program 1 times [2024-11-16 06:49:19,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:49:19,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170280750] [2024-11-16 06:49:19,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:19,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:49:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:20,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:49:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-16 06:49:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:49:20,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:49:20,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170280750] [2024-11-16 06:49:20,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170280750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 06:49:20,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474269527] [2024-11-16 06:49:20,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:20,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:49:20,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:49:20,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 06:49:20,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 06:49:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:21,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-16 06:49:21,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 06:49:21,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:49:21,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 06:49:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:49:21,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474269527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 06:49:21,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 06:49:21,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2024-11-16 06:49:21,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123128231] [2024-11-16 06:49:21,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 06:49:21,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 06:49:21,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:49:21,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 06:49:21,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-16 06:49:21,513 INFO L87 Difference]: Start difference. First operand 80 states and 104 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 06:49:21,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:49:21,775 INFO L93 Difference]: Finished difference Result 147 states and 193 transitions. [2024-11-16 06:49:21,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 06:49:21,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-16 06:49:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:49:21,776 INFO L225 Difference]: With dead ends: 147 [2024-11-16 06:49:21,776 INFO L226 Difference]: Without dead ends: 83 [2024-11-16 06:49:21,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-16 06:49:21,777 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 32 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 06:49:21,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 515 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 06:49:21,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-16 06:49:21,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-16 06:49:21,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 71 states have internal predecessors, (91), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:49:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2024-11-16 06:49:21,788 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 42 [2024-11-16 06:49:21,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:49:21,789 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2024-11-16 06:49:21,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 06:49:21,789 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2024-11-16 06:49:21,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-16 06:49:21,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:49:21,790 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:49:21,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 06:49:21,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:49:21,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:49:21,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:49:21,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1093404035, now seen corresponding path program 2 times [2024-11-16 06:49:21,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:49:21,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989735129] [2024-11-16 06:49:21,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:49:21,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:49:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:22,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:49:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:23,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-16 06:49:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:49:23,114 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:49:23,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:49:23,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989735129] [2024-11-16 06:49:23,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989735129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 06:49:23,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300497514] [2024-11-16 06:49:23,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 06:49:23,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:49:23,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:49:23,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 06:49:23,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 06:50:16,957 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 06:50:16,957 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 06:50:16,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 06:50:16,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 06:50:17,045 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:50:17,045 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 06:50:17,251 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:50:17,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300497514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 06:50:17,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 06:50:17,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2024-11-16 06:50:17,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405182908] [2024-11-16 06:50:17,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 06:50:17,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-16 06:50:17,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 06:50:17,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-16 06:50:17,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-11-16 06:50:17,254 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 19 states have internal predecessors, (59), 2 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 06:50:17,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 06:50:17,797 INFO L93 Difference]: Finished difference Result 153 states and 202 transitions. [2024-11-16 06:50:17,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 06:50:17,798 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 19 states have internal predecessors, (59), 2 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-16 06:50:17,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 06:50:17,799 INFO L225 Difference]: With dead ends: 153 [2024-11-16 06:50:17,799 INFO L226 Difference]: Without dead ends: 89 [2024-11-16 06:50:17,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2024-11-16 06:50:17,800 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 41 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 06:50:17,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 667 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 06:50:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-16 06:50:17,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-16 06:50:17,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 77 states have (on average 1.2597402597402598) internal successors, (97), 77 states have internal predecessors, (97), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-16 06:50:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 113 transitions. [2024-11-16 06:50:17,818 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 113 transitions. Word has length 45 [2024-11-16 06:50:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 06:50:17,818 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 113 transitions. [2024-11-16 06:50:17,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 19 states have internal predecessors, (59), 2 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-16 06:50:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2024-11-16 06:50:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-16 06:50:17,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 06:50:17,819 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 06:50:17,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 06:50:18,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:50:18,020 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 06:50:18,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 06:50:18,021 INFO L85 PathProgramCache]: Analyzing trace with hash -671548611, now seen corresponding path program 3 times [2024-11-16 06:50:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 06:50:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672127054] [2024-11-16 06:50:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 06:50:18,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 06:50:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:50:19,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-16 06:50:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:50:19,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-16 06:50:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 06:50:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-16 06:50:19,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 06:50:19,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672127054] [2024-11-16 06:50:19,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672127054] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 06:50:19,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382895175] [2024-11-16 06:50:19,353 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-16 06:50:19,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 06:50:19,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 06:50:19,355 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 06:50:19,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process