./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 583ab92a7056287b3071cc8588dd414024160b1da2815b90013f83f6f32564a1 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:47:51,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:47:51,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-22 21:47:51,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:47:51,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:47:51,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:47:51,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:47:51,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:47:51,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:47:51,485 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:47:51,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:47:51,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:47:51,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:47:51,486 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:47:51,487 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:47:51,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:47:51,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:47:51,487 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-22 21:47:51,488 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:47:51,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-22 21:47:51,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:47:51,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:47:51,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:47:51,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:47:51,492 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-22 21:47:51,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:47:51,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:47:51,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:47:51,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:47:51,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:47:51,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:47:51,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:47:51,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:47:51,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:47:51,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:47:51,496 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:47:51,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 583ab92a7056287b3071cc8588dd414024160b1da2815b90013f83f6f32564a1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 21:47:51,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:47:51,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:47:51,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:47:51,721 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:47:51,721 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:47:51,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i [2023-11-22 21:47:52,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:47:52,952 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:47:52,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i [2023-11-22 21:47:52,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba291066b/03a38e2be7534e08b10d29674f294fba/FLAG570a0e532 [2023-11-22 21:47:53,005 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba291066b/03a38e2be7534e08b10d29674f294fba [2023-11-22 21:47:53,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:47:53,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:47:53,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:47:53,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:47:53,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:47:53,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a778b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53, skipping insertion in model container [2023-11-22 21:47:53,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,060 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:47:53,272 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i[23464,23477] [2023-11-22 21:47:53,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:47:53,375 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:47:53,402 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_fib_longer-2.i[23464,23477] [2023-11-22 21:47:53,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:47:53,509 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:47:53,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53 WrapperNode [2023-11-22 21:47:53,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:47:53,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:47:53,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:47:53,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:47:53,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,573 INFO L138 Inliner]: procedures = 144, calls = 393, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 734 [2023-11-22 21:47:53,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:47:53,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:47:53,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:47:53,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:47:53,584 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,593 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,635 INFO L189 HeapSplitter]: Split 258 memory accesses to 13 slices as follows [2, 8, 8, 41, 36, 25, 25, 11, 37, 2, 37, 13, 13] [2023-11-22 21:47:53,641 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,692 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:47:53,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:47:53,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:47:53,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:47:53,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (1/1) ... [2023-11-22 21:47:53,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:47:53,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:47:53,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:47:53,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:47:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 21:47:53,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 21:47:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 21:47:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 21:47:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 21:47:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 21:47:53,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 21:47:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 21:47:53,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 21:47:53,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 21:47:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 21:47:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 21:47:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 21:47:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 21:47:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 21:47:53,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-22 21:47:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-22 21:47:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-22 21:47:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-22 21:47:53,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 21:47:53,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 21:47:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:47:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:47:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 21:47:53,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 21:47:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 21:47:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 21:47:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 21:47:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 21:47:53,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-22 21:47:53,803 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2023-11-22 21:47:53,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 21:47:53,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-22 21:47:53,805 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-22 21:47:53,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2023-11-22 21:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:47:53,806 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2023-11-22 21:47:53,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2023-11-22 21:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 21:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 21:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 21:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 21:47:53,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 21:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 21:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 21:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 21:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 21:47:53,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-22 21:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-22 21:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-22 21:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-22 21:47:53,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:47:53,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:47:54,023 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:47:54,024 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:47:54,263 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-22 21:47:54,264 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 21:47:54,264 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-22 21:47:54,264 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 21:47:54,264 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: SUMMARY for call __CS_cs(); srcloc: null [2023-11-22 21:47:54,264 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L733-1: assume 0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296);main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset);havoc main_thread_~#id1~0#1.base, main_thread_~#id1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset);havoc main_thread_~#id2~0#1.base, main_thread_~#id2~0#1.offset; [2023-11-22 21:47:54,265 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L733-1: assume !(0 != (if ~__CS_ret~0 % 256 % 4294967296 <= 2147483647 then ~__CS_ret~0 % 256 % 4294967296 else ~__CS_ret~0 % 256 % 4294967296 - 4294967296)); [2023-11-22 21:47:56,626 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:47:56,670 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:47:56,670 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-22 21:47:56,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:56 BoogieIcfgContainer [2023-11-22 21:47:56,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:47:56,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:47:56,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:47:56,676 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:47:56,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:47:53" (1/3) ... [2023-11-22 21:47:56,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dee5de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:56, skipping insertion in model container [2023-11-22 21:47:56,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:53" (2/3) ... [2023-11-22 21:47:56,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dee5de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:56, skipping insertion in model container [2023-11-22 21:47:56,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:56" (3/3) ... [2023-11-22 21:47:56,679 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_fib_longer-2.i [2023-11-22 21:47:56,691 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:47:56,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:47:56,732 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:47:56,737 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79ac483e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:47:56,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:47:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:47:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-11-22 21:47:56,755 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:47:56,756 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:47:56,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:47:56,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:47:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash 855262826, now seen corresponding path program 1 times [2023-11-22 21:47:56,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:47:56,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515054494] [2023-11-22 21:47:56,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:47:56,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:47:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-22 21:47:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:47:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:47:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:47:57,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:47:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 21:47:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 21:47:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:47:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:47:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 21:47:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 21:47:57,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 21:47:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:47:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:47:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 21:47:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 21:47:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 21:47:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 21:47:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:47:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:47:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:47:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 21:47:57,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:47:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 21:47:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:47:57,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 21:47:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 21:47:57,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 21:47:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 21:47:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 21:47:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 21:47:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 21:47:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 21:47:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 21:47:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 21:47:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 21:47:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 21:47:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 21:47:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 21:47:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 21:47:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 21:47:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 21:47:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-22 21:47:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 21:47:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-22 21:47:57,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 21:47:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-22 21:47:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 21:47:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:47:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:47:57,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:47:57,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515054494] [2023-11-22 21:47:57,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515054494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:47:57,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:47:57,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:47:57,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554926446] [2023-11-22 21:47:57,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:47:57,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:47:57,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:47:57,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:47:57,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:47:57,896 INFO L87 Difference]: Start difference. First operand has 179 states, 106 states have (on average 1.349056603773585) internal successors, (143), 107 states have internal predecessors, (143), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:47:59,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:00,039 INFO L93 Difference]: Finished difference Result 360 states and 625 transitions. [2023-11-22 21:48:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:48:00,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 299 [2023-11-22 21:48:00,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:00,050 INFO L225 Difference]: With dead ends: 360 [2023-11-22 21:48:00,054 INFO L226 Difference]: Without dead ends: 180 [2023-11-22 21:48:00,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:48:00,061 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:00,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 524 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-22 21:48:00,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-22 21:48:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 178. [2023-11-22 21:48:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 106 states have (on average 1.2830188679245282) internal successors, (136), 106 states have internal predecessors, (136), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:48:00,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 270 transitions. [2023-11-22 21:48:00,114 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 270 transitions. Word has length 299 [2023-11-22 21:48:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:00,115 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 270 transitions. [2023-11-22 21:48:00,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 270 transitions. [2023-11-22 21:48:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-11-22 21:48:00,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:00,120 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:00,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:48:00,121 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:00,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:00,121 INFO L85 PathProgramCache]: Analyzing trace with hash -362326326, now seen corresponding path program 1 times [2023-11-22 21:48:00,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:00,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332007562] [2023-11-22 21:48:00,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:00,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:00,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-22 21:48:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 21:48:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-22 21:48:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-22 21:48:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-22 21:48:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-22 21:48:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:48:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:48:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-22 21:48:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-22 21:48:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-22 21:48:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-22 21:48:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-22 21:48:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-22 21:48:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 21:48:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-22 21:48:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-22 21:48:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-22 21:48:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-22 21:48:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 21:48:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:48:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 21:48:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 21:48:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-22 21:48:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-22 21:48:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 21:48:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 21:48:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-22 21:48:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-22 21:48:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-11-22 21:48:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 21:48:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 21:48:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-22 21:48:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 21:48:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 21:48:00,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 21:48:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 21:48:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-22 21:48:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-11-22 21:48:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-11-22 21:48:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-11-22 21:48:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2023-11-22 21:48:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-11-22 21:48:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-11-22 21:48:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-11-22 21:48:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2023-11-22 21:48:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:00,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4513 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:48:00,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332007562] [2023-11-22 21:48:00,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332007562] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:00,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:48:00,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-22 21:48:00,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414181226] [2023-11-22 21:48:00,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:00,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:48:00,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:48:00,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:48:00,615 INFO L87 Difference]: Start difference. First operand 178 states and 270 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:00,672 INFO L93 Difference]: Finished difference Result 355 states and 540 transitions. [2023-11-22 21:48:00,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:48:00,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 302 [2023-11-22 21:48:00,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:00,675 INFO L225 Difference]: With dead ends: 355 [2023-11-22 21:48:00,677 INFO L226 Difference]: Without dead ends: 179 [2023-11-22 21:48:00,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-22 21:48:00,681 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:00,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 524 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 21:48:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-22 21:48:00,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-22 21:48:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 107 states have (on average 1.280373831775701) internal successors, (137), 107 states have internal predecessors, (137), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:48:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 271 transitions. [2023-11-22 21:48:00,698 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 271 transitions. Word has length 302 [2023-11-22 21:48:00,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:00,698 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 271 transitions. [2023-11-22 21:48:00,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:00,698 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 271 transitions. [2023-11-22 21:48:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-11-22 21:48:00,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:00,702 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:00,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 21:48:00,703 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:00,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:00,703 INFO L85 PathProgramCache]: Analyzing trace with hash -286844739, now seen corresponding path program 1 times [2023-11-22 21:48:00,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:00,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551965778] [2023-11-22 21:48:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:00,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:48:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:48:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:48:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:48:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:48:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 21:48:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 21:48:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 21:48:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-22 21:48:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-22 21:48:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-22 21:48:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-22 21:48:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-22 21:48:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-22 21:48:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-22 21:48:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 21:48:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-22 21:48:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-22 21:48:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 21:48:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:48:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 21:48:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-11-22 21:48:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-22 21:48:01,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 21:48:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 21:48:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 21:48:01,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 21:48:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-11-22 21:48:01,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-11-22 21:48:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-22 21:48:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-11-22 21:48:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-11-22 21:48:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-22 21:48:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-11-22 21:48:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 21:48:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-22 21:48:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-22 21:48:01,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 21:48:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 21:48:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 21:48:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2023-11-22 21:48:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-22 21:48:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-22 21:48:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-22 21:48:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-11-22 21:48:01,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2023-11-22 21:48:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2023-11-22 21:48:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-22 21:48:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:48:01,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:01,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551965778] [2023-11-22 21:48:01,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551965778] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:48:01,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963191256] [2023-11-22 21:48:01,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:01,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:01,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:48:01,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:48:01,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 21:48:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:01,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:48:01,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:48:01,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:48:02,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4514 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-11-22 21:48:02,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963191256] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:48:02,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:48:02,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-11-22 21:48:02,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918649631] [2023-11-22 21:48:02,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:48:02,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:48:02,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:02,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:48:02,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:48:02,063 INFO L87 Difference]: Start difference. First operand 179 states and 271 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-11-22 21:48:02,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:02,135 INFO L93 Difference]: Finished difference Result 358 states and 544 transitions. [2023-11-22 21:48:02,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:48:02,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) Word has length 303 [2023-11-22 21:48:02,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:02,137 INFO L225 Difference]: With dead ends: 358 [2023-11-22 21:48:02,137 INFO L226 Difference]: Without dead ends: 181 [2023-11-22 21:48:02,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 699 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:48:02,139 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:02,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 785 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-22 21:48:02,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-22 21:48:02,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-11-22 21:48:02,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 109 states have (on average 1.275229357798165) internal successors, (139), 109 states have internal predecessors, (139), 67 states have call successors, (67), 4 states have call predecessors, (67), 4 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2023-11-22 21:48:02,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 273 transitions. [2023-11-22 21:48:02,151 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 273 transitions. Word has length 303 [2023-11-22 21:48:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:02,152 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 273 transitions. [2023-11-22 21:48:02,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 1 states have call predecessors, (96), 1 states have call successors, (96) [2023-11-22 21:48:02,152 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 273 transitions. [2023-11-22 21:48:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2023-11-22 21:48:02,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:02,155 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:02,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 21:48:02,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:02,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:02,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1576445533, now seen corresponding path program 2 times [2023-11-22 21:48:02,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:02,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019813644] [2023-11-22 21:48:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 21:48:02,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-22 21:48:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-22 21:48:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-22 21:48:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-22 21:48:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-22 21:48:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-22 21:48:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-22 21:48:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-22 21:48:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 21:48:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-22 21:48:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:48:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:48:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 21:48:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-22 21:48:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-22 21:48:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 21:48:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 21:48:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:48:02,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:48:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 21:48:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:48:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 21:48:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:48:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 21:48:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 21:48:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 21:48:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 21:48:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-11-22 21:48:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-11-22 21:48:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-11-22 21:48:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 21:48:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2023-11-22 21:48:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 21:48:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2023-11-22 21:48:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 21:48:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 21:48:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 21:48:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-11-22 21:48:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-11-22 21:48:02,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-11-22 21:48:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-22 21:48:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 21:48:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2023-11-22 21:48:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-11-22 21:48:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-11-22 21:48:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-11-22 21:48:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2023-11-22 21:48:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:02,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2023-11-22 21:48:02,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:02,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019813644] [2023-11-22 21:48:02,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019813644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:48:02,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22213569] [2023-11-22 21:48:02,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:48:02,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:02,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:48:02,885 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) [2023-11-22 21:48:02,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 21:48:03,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-22 21:48:03,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:48:03,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 21:48:03,441 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:04,006 INFO L134 CoverageAnalysis]: Checked inductivity of 4519 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4519 trivial. 0 not checked. [2023-11-22 21:48:04,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:48:04,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22213569] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:04,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:48:04,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-11-22 21:48:04,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203086474] [2023-11-22 21:48:04,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:04,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:48:04,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:04,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:48:04,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:48:04,008 INFO L87 Difference]: Start difference. First operand 181 states and 273 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:04,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:04,075 INFO L93 Difference]: Finished difference Result 351 states and 534 transitions. [2023-11-22 21:48:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:48:04,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 305 [2023-11-22 21:48:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:04,082 INFO L225 Difference]: With dead ends: 351 [2023-11-22 21:48:04,083 INFO L226 Difference]: Without dead ends: 249 [2023-11-22 21:48:04,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:48:04,087 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 107 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:04,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 778 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-22 21:48:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-11-22 21:48:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2023-11-22 21:48:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 155 states have internal predecessors, (210), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (87), 85 states have call predecessors, (87), 85 states have call successors, (87) [2023-11-22 21:48:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 382 transitions. [2023-11-22 21:48:04,124 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 382 transitions. Word has length 305 [2023-11-22 21:48:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:04,124 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 382 transitions. [2023-11-22 21:48:04,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 3 states have internal predecessors, (66), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-11-22 21:48:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 382 transitions. [2023-11-22 21:48:04,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-11-22 21:48:04,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:04,129 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:04,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 21:48:04,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-22 21:48:04,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:04,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:04,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1581461193, now seen corresponding path program 1 times [2023-11-22 21:48:04,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:04,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169176561] [2023-11-22 21:48:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:04,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-22 21:48:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-22 21:48:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 21:48:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:48:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:05,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:05,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-11-22 21:48:05,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:05,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169176561] [2023-11-22 21:48:05,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169176561] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:48:05,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508816785] [2023-11-22 21:48:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:05,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:05,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:48:05,353 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) [2023-11-22 21:48:05,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 21:48:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:06,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-22 21:48:06,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:06,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-11-22 21:48:06,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:48:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5339 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5338 trivial. 0 not checked. [2023-11-22 21:48:06,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508816785] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:48:06,305 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:48:06,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3, 4] total 10 [2023-11-22 21:48:06,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935574870] [2023-11-22 21:48:06,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:48:06,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 21:48:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:06,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 21:48:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:48:06,308 INFO L87 Difference]: Start difference. First operand 249 states and 382 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:48:08,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:10,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:12,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:14,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:16,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:18,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:20,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:22,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:24,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:24,721 INFO L93 Difference]: Finished difference Result 546 states and 846 transitions. [2023-11-22 21:48:24,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 21:48:24,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 367 [2023-11-22 21:48:24,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:24,723 INFO L225 Difference]: With dead ends: 546 [2023-11-22 21:48:24,723 INFO L226 Difference]: Without dead ends: 305 [2023-11-22 21:48:24,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-11-22 21:48:24,725 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 45 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 78 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:24,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 1114 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 790 Invalid, 8 Unknown, 0 Unchecked, 18.1s Time] [2023-11-22 21:48:24,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2023-11-22 21:48:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 286. [2023-11-22 21:48:24,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 185 states have (on average 1.3567567567567567) internal successors, (251), 186 states have internal predecessors, (251), 91 states have call successors, (91), 8 states have call predecessors, (91), 9 states have return successors, (95), 91 states have call predecessors, (95), 91 states have call successors, (95) [2023-11-22 21:48:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 437 transitions. [2023-11-22 21:48:24,762 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 437 transitions. Word has length 367 [2023-11-22 21:48:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:24,762 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 437 transitions. [2023-11-22 21:48:24,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:48:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 437 transitions. [2023-11-22 21:48:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-22 21:48:24,766 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:24,766 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:24,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:48:24,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:24,980 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:24,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:24,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1161284738, now seen corresponding path program 2 times [2023-11-22 21:48:24,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:24,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122087498] [2023-11-22 21:48:24,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:24,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-22 21:48:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:26,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:26,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:26,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:26,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:48:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:48:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:48:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2023-11-22 21:48:26,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:26,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122087498] [2023-11-22 21:48:26,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122087498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:26,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:48:26,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:48:26,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430084325] [2023-11-22 21:48:26,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:26,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:48:26,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:26,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:48:26,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:48:26,553 INFO L87 Difference]: Start difference. First operand 286 states and 437 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:28,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:30,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:32,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:34,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:36,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:40,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:40,520 INFO L93 Difference]: Finished difference Result 703 states and 1090 transitions. [2023-11-22 21:48:40,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 21:48:40,524 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 385 [2023-11-22 21:48:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:40,527 INFO L225 Difference]: With dead ends: 703 [2023-11-22 21:48:40,527 INFO L226 Difference]: Without dead ends: 592 [2023-11-22 21:48:40,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-22 21:48:40,529 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 372 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 344 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:40,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 975 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 737 Invalid, 5 Unknown, 0 Unchecked, 12.2s Time] [2023-11-22 21:48:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-11-22 21:48:40,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 531. [2023-11-22 21:48:40,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 333 states have (on average 1.3603603603603605) internal successors, (453), 337 states have internal predecessors, (453), 177 states have call successors, (177), 16 states have call predecessors, (177), 20 states have return successors, (193), 177 states have call predecessors, (193), 177 states have call successors, (193) [2023-11-22 21:48:40,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 823 transitions. [2023-11-22 21:48:40,606 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 823 transitions. Word has length 385 [2023-11-22 21:48:40,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:40,607 INFO L495 AbstractCegarLoop]: Abstraction has 531 states and 823 transitions. [2023-11-22 21:48:40,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:40,608 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 823 transitions. [2023-11-22 21:48:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-22 21:48:40,613 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:40,613 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:40,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 21:48:40,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:40,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:40,614 INFO L85 PathProgramCache]: Analyzing trace with hash 141198690, now seen corresponding path program 1 times [2023-11-22 21:48:40,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:40,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302639559] [2023-11-22 21:48:40,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:40,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-22 21:48:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:42,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:42,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:42,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:48:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:48:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:48:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2023-11-22 21:48:42,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:42,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302639559] [2023-11-22 21:48:42,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302639559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:48:42,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:48:42,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:48:42,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072697356] [2023-11-22 21:48:42,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:48:42,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:48:42,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:42,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:48:42,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:48:42,086 INFO L87 Difference]: Start difference. First operand 531 states and 823 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:44,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:46,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:48,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:50,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:52,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:48:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:48:56,093 INFO L93 Difference]: Finished difference Result 1016 states and 1572 transitions. [2023-11-22 21:48:56,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-22 21:48:56,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) Word has length 385 [2023-11-22 21:48:56,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:48:56,096 INFO L225 Difference]: With dead ends: 1016 [2023-11-22 21:48:56,096 INFO L226 Difference]: Without dead ends: 491 [2023-11-22 21:48:56,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2023-11-22 21:48:56,098 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 356 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 253 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:48:56,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1001 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 766 Invalid, 5 Unknown, 0 Unchecked, 12.3s Time] [2023-11-22 21:48:56,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2023-11-22 21:48:56,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 453. [2023-11-22 21:48:56,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 282 states have (on average 1.2765957446808511) internal successors, (360), 284 states have internal predecessors, (360), 153 states have call successors, (153), 15 states have call predecessors, (153), 17 states have return successors, (161), 153 states have call predecessors, (161), 153 states have call successors, (161) [2023-11-22 21:48:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 674 transitions. [2023-11-22 21:48:56,134 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 674 transitions. Word has length 385 [2023-11-22 21:48:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:48:56,135 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 674 transitions. [2023-11-22 21:48:56,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 4 states have call successors, (56) [2023-11-22 21:48:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 674 transitions. [2023-11-22 21:48:56,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2023-11-22 21:48:56,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:48:56,138 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 12, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:48:56,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 21:48:56,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:48:56,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:48:56,139 INFO L85 PathProgramCache]: Analyzing trace with hash -705755136, now seen corresponding path program 1 times [2023-11-22 21:48:56,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:48:56,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549035169] [2023-11-22 21:48:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:48:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:56,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:48:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:56,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:48:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:48:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:57,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:48:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:48:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:48:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:48:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 21:48:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 21:48:57,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 21:48:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:48:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:48:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:48:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:48:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:48:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:48:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:48:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:48:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:48:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:48:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:48:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:48:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:48:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:48:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:48:57,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:48:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:48:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:48:57,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:48:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:48:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:48:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:48:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:48:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:48:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:48:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:48:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:48:57,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:48:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:48:57,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:48:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:48:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:48:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:48:57,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:48:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:48:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:48:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:48:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:48:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:48:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:48:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:48:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:48:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:48:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:48:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:48:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:57,233 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-11-22 21:48:57,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:48:57,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549035169] [2023-11-22 21:48:57,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549035169] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:48:57,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669114480] [2023-11-22 21:48:57,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:48:57,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:48:57,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:48:57,235 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) [2023-11-22 21:48:57,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 21:48:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:48:58,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 2470 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-22 21:48:58,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:48:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-11-22 21:48:58,174 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:48:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5468 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 5356 trivial. 0 not checked. [2023-11-22 21:48:58,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669114480] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:48:58,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:48:58,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 13 [2023-11-22 21:48:58,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572945529] [2023-11-22 21:48:58,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:48:58,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-22 21:48:58,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:48:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-22 21:48:58,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:48:58,415 INFO L87 Difference]: Start difference. First operand 453 states and 674 transitions. Second operand has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:49:00,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:02,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:04,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:06,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:08,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:10,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:12,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:14,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:16,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:18,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:20,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:49:21,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:49:21,949 INFO L93 Difference]: Finished difference Result 928 states and 1394 transitions. [2023-11-22 21:49:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-22 21:49:21,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) Word has length 385 [2023-11-22 21:49:21,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:49:21,952 INFO L225 Difference]: With dead ends: 928 [2023-11-22 21:49:21,952 INFO L226 Difference]: Without dead ends: 501 [2023-11-22 21:49:21,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 878 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:49:21,954 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 51 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 147 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2023-11-22 21:49:21,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 728 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 466 Invalid, 11 Unknown, 0 Unchecked, 23.3s Time] [2023-11-22 21:49:21,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-22 21:49:21,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 471. [2023-11-22 21:49:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 300 states have (on average 1.27) internal successors, (381), 302 states have internal predecessors, (381), 153 states have call successors, (153), 15 states have call predecessors, (153), 17 states have return successors, (161), 153 states have call predecessors, (161), 153 states have call successors, (161) [2023-11-22 21:49:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 695 transitions. [2023-11-22 21:49:21,981 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 695 transitions. Word has length 385 [2023-11-22 21:49:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:49:21,981 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 695 transitions. [2023-11-22 21:49:21,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.384615384615385) internal successors, (135), 10 states have internal predecessors, (135), 2 states have call successors, (119), 5 states have call predecessors, (119), 2 states have return successors, (112), 2 states have call predecessors, (112), 2 states have call successors, (112) [2023-11-22 21:49:21,982 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 695 transitions. [2023-11-22 21:49:21,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-22 21:49:21,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:49:21,985 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:49:22,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 21:49:22,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:49:22,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:49:22,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:49:22,201 INFO L85 PathProgramCache]: Analyzing trace with hash -2047407751, now seen corresponding path program 2 times [2023-11-22 21:49:22,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:49:22,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573101661] [2023-11-22 21:49:22,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:49:22,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:49:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:49:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:49:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:49:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:49:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:49:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:49:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:49:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:49:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:49:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:49:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:49:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:49:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:49:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:49:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:49:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:49:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:49:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:49:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:49:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:49:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:49:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:49:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:49:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:49:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:49:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:49:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:49:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:49:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:49:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:49:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:49:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:49:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:49:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:49:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:49:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:49:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:49:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:49:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:49:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:49:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:49:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:49:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:49:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:49:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:49:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:49:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:49:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:49:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:49:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:49:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:49:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:49:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:49:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-11-22 21:49:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-11-22 21:49:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-22 21:49:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:49:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2023-11-22 21:49:23,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:49:23,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573101661] [2023-11-22 21:49:23,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573101661] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:49:23,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532504181] [2023-11-22 21:49:23,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:49:23,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:49:23,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:49:23,836 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:49:23,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 21:50:34,696 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:50:34,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:50:34,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 2815 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-22 21:50:34,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:50:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 768 proven. 4 refuted. 0 times theorem prover too weak. 4987 trivial. 0 not checked. [2023-11-22 21:50:34,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:50:35,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5755 trivial. 0 not checked. [2023-11-22 21:50:35,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532504181] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:50:35,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:50:35,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 5] total 15 [2023-11-22 21:50:35,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558695104] [2023-11-22 21:50:35,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:50:35,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-22 21:50:35,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:50:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-22 21:50:35,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-22 21:50:35,209 INFO L87 Difference]: Start difference. First operand 471 states and 695 transitions. Second operand has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 12 states have internal predecessors, (116), 9 states have call successors, (114), 7 states have call predecessors, (114), 7 states have return successors, (113), 7 states have call predecessors, (113), 9 states have call successors, (113) [2023-11-22 21:50:37,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:39,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:41,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:43,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:45,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:49,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:50:49,171 INFO L93 Difference]: Finished difference Result 903 states and 1374 transitions. [2023-11-22 21:50:49,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-22 21:50:49,171 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 12 states have internal predecessors, (116), 9 states have call successors, (114), 7 states have call predecessors, (114), 7 states have return successors, (113), 7 states have call predecessors, (113), 9 states have call successors, (113) Word has length 403 [2023-11-22 21:50:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:50:49,174 INFO L225 Difference]: With dead ends: 903 [2023-11-22 21:50:49,174 INFO L226 Difference]: Without dead ends: 484 [2023-11-22 21:50:49,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 922 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2023-11-22 21:50:49,176 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 573 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 698 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:50:49,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 933 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 733 Invalid, 5 Unknown, 0 Unchecked, 11.7s Time] [2023-11-22 21:50:49,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-11-22 21:50:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 421. [2023-11-22 21:50:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 281 states have (on average 1.3238434163701067) internal successors, (372), 283 states have internal predecessors, (372), 115 states have call successors, (115), 22 states have call predecessors, (115), 24 states have return successors, (131), 115 states have call predecessors, (131), 115 states have call successors, (131) [2023-11-22 21:50:49,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 618 transitions. [2023-11-22 21:50:49,229 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 618 transitions. Word has length 403 [2023-11-22 21:50:49,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:50:49,229 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 618 transitions. [2023-11-22 21:50:49,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 12 states have internal predecessors, (116), 9 states have call successors, (114), 7 states have call predecessors, (114), 7 states have return successors, (113), 7 states have call predecessors, (113), 9 states have call successors, (113) [2023-11-22 21:50:49,229 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 618 transitions. [2023-11-22 21:50:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-22 21:50:49,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:50:49,232 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:50:49,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 21:50:49,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:50:49,456 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:50:49,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:50:49,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1486154935, now seen corresponding path program 1 times [2023-11-22 21:50:49,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:50:49,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458708209] [2023-11-22 21:50:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:50:49,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:50:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:50:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:50,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:50:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:50:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:50:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:50:51,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:50:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:50:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:50:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:50:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:50:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:50:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:50:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:50:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:50:51,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:50:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:50:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:50:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:50:51,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:50:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:50:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:50:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:50:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:50:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:50:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:50:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:50:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:50:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:50:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:50:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:50:51,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:50:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:50:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:50:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:50:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:50:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:50:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:50:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:50:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:50:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:50:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:50:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:50:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:50:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:50:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:50:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:50:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:50:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:50:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:50:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:50:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:50:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:50:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:50:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:50:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:50:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:50:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-11-22 21:50:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-11-22 21:50:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-22 21:50:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:50:51,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5759 trivial. 0 not checked. [2023-11-22 21:50:51,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:50:51,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458708209] [2023-11-22 21:50:51,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458708209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:50:51,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:50:51,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 21:50:51,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017121184] [2023-11-22 21:50:51,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:50:51,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 21:50:51,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:50:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 21:50:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:50:51,332 INFO L87 Difference]: Start difference. First operand 421 states and 618 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-11-22 21:50:53,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:55,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:50:57,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:00,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:51:00,067 INFO L93 Difference]: Finished difference Result 791 states and 1182 transitions. [2023-11-22 21:51:00,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 21:51:00,068 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 403 [2023-11-22 21:51:00,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:51:00,071 INFO L225 Difference]: With dead ends: 791 [2023-11-22 21:51:00,071 INFO L226 Difference]: Without dead ends: 592 [2023-11-22 21:51:00,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:51:00,072 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 437 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 566 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:51:00,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 421 Invalid, 1142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 573 Invalid, 3 Unknown, 0 Unchecked, 7.8s Time] [2023-11-22 21:51:00,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-11-22 21:51:00,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 526. [2023-11-22 21:51:00,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 337 states have (on average 1.2670623145400592) internal successors, (427), 339 states have internal predecessors, (427), 163 states have call successors, (163), 23 states have call predecessors, (163), 25 states have return successors, (179), 163 states have call predecessors, (179), 163 states have call successors, (179) [2023-11-22 21:51:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 769 transitions. [2023-11-22 21:51:00,126 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 769 transitions. Word has length 403 [2023-11-22 21:51:00,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:51:00,127 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 769 transitions. [2023-11-22 21:51:00,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (56), 4 states have call predecessors, (56), 2 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2023-11-22 21:51:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 769 transitions. [2023-11-22 21:51:00,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-11-22 21:51:00,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:51:00,130 INFO L195 NwaCegarLoop]: trace histogram [52, 52, 52, 21, 7, 7, 7, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:51:00,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 21:51:00,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:51:00,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:51:00,131 INFO L85 PathProgramCache]: Analyzing trace with hash -619918599, now seen corresponding path program 1 times [2023-11-22 21:51:00,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:51:00,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305730838] [2023-11-22 21:51:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:51:00,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:51:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:03,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:51:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:51:03,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:03,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:03,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-22 21:51:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-22 21:51:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-22 21:51:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-22 21:51:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-22 21:51:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:51:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:51:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:51:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:51:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:51:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:51:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-11-22 21:51:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-11-22 21:51:04,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:51:04,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:51:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-22 21:51:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-11-22 21:51:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-11-22 21:51:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-22 21:51:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-22 21:51:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-11-22 21:51:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 21:51:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-11-22 21:51:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-11-22 21:51:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 21:51:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 21:51:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 21:51:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 21:51:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 21:51:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 21:51:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 21:51:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-11-22 21:51:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-11-22 21:51:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 21:51:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-11-22 21:51:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-11-22 21:51:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2023-11-22 21:51:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2023-11-22 21:51:04,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-11-22 21:51:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2023-11-22 21:51:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-11-22 21:51:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-11-22 21:51:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2023-11-22 21:51:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-11-22 21:51:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-11-22 21:51:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2023-11-22 21:51:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2023-11-22 21:51:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-11-22 21:51:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2023-11-22 21:51:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2023-11-22 21:51:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-11-22 21:51:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2023-11-22 21:51:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2023-11-22 21:51:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-11-22 21:51:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:04,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 5756 trivial. 0 not checked. [2023-11-22 21:51:04,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:51:04,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305730838] [2023-11-22 21:51:04,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305730838] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:51:04,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831159496] [2023-11-22 21:51:04,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:51:04,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:51:04,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:51:04,251 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:51:04,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 21:51:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:51:05,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-22 21:51:05,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:51:05,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 treesize of output 9 [2023-11-22 21:51:11,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:51:11,490 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-22 21:51:11,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 48 [2023-11-22 21:51:13,149 INFO L349 Elim1Store]: treesize reduction 64, result has 54.9 percent of original size [2023-11-22 21:51:13,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 104 [2023-11-22 21:51:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 808 proven. 4 refuted. 0 times theorem prover too weak. 4947 trivial. 0 not checked. [2023-11-22 21:51:31,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:51:31,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-11-22 21:51:31,619 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 35 treesize of output 31 [2023-11-22 21:51:32,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-22 21:51:32,054 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 26 treesize of output 22 [2023-11-22 21:51:32,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2023-11-22 21:51:32,118 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 26 treesize of output 22 [2023-11-22 21:51:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 5759 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 5755 trivial. 0 not checked. [2023-11-22 21:51:32,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831159496] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:51:32,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:51:32,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 9] total 34 [2023-11-22 21:51:32,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754495680] [2023-11-22 21:51:32,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:51:32,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-22 21:51:32,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:51:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-22 21:51:32,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=967, Unknown=4, NotChecked=0, Total=1122 [2023-11-22 21:51:32,187 INFO L87 Difference]: Start difference. First operand 526 states and 769 transitions. Second operand has 34 states, 32 states have (on average 5.0) internal successors, (160), 31 states have internal predecessors, (160), 17 states have call successors, (121), 12 states have call predecessors, (121), 13 states have return successors, (121), 17 states have call predecessors, (121), 17 states have call successors, (121) [2023-11-22 21:51:34,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:36,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:38,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:40,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:51:42,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:44,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:46,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:48,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:50,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:52,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:54,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:56,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:51:58,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:52:00,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:52:02,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:52:04,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:52:06,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:52:08,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:52:10,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:52:12,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15